BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616

BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616

[Axel Lin]

Hi,
I got below messages while booting.
Testing on a nommu platform with 3.13.0-rc2 + patches for this SoC.

VFS: Mounted root (jffs2 filesystem) on device 31:1.
devtmpfs: mounted
Freeing unused kernel memory: 92K (003a4000 - 003bb000)
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616
in_atomic(): 1, irqs_disabled(): 128, pid: 1, name: swapper
1 lock held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<0006ea10>] prepare_bprm_creds+0x30/0x6c
CPU: 0 PID: 1 Comm: swapper Not tainted 3.13.0-rc2-00080-g2f56e18-dirty #1987
Backtrace: 
[<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
 r6:00000000 r5:0147abb8 r4:01c38000 r3:00200140
[<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
[<002c8f08>] (dump_stack+0x0/0x28) from [<0002e3dc>] (__might_sleep+0xf0/0x110)
[<0002e2ec>] (__might_sleep+0x0/0x110) from [<002cc5ec>] (mutex_lock_nested+0x2c/0x2e4)
 r4:0147abb8
[<002cc5c0>] (mutex_lock_nested+0x0/0x2e4) from [<000bf9bc>] (jffs2_readpage+0x28/0x4c)
 r8:00100100 r7:00000002 r6:00810640 r5:0147abb8 r4:00810640
[<000bf994>] (jffs2_readpage+0x0/0x4c) from [<000584f0>] (__do_page_cache_readahead+0x1fc/0x260)
 r5:00000004 r4:0147ad2c
[<000582f4>] (__do_page_cache_readahead+0x0/0x260) from [<000587cc>] (ra_submit+0x2c/0x34)
[<000587a0>] (ra_submit+0x0/0x34) from [<00058ae0>] (ondemand_readahead+0x30c/0x330)
[<000587d4>] (ondemand_readahead+0x0/0x330) from [<00058c0c>] (page_cache_sync_readahead+0x60/0x68)
[<00058bac>] (page_cache_sync_readahead+0x0/0x68) from [<00050f5c>] (generic_file_aio_read+0x2e0/0x768)
 r5:00000000 r4:00000001
[<00050c7c>] (generic_file_aio_read+0x0/0x768) from [<00069300>] (do_sync_read+0x88/0xd0)
[<00069278>] (do_sync_read+0x0/0xd0) from [<00069b84>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e59200 r5:01c39ef8 r4:01c0fc40
[<00069ad8>] (vfs_read+0x0/0xf4) from [<0006e528>] (kernel_read+0x34/0x64)
 r7:003568ab r6:00000000 r5:01c0fc40 r4:01c39ef8
[<0006e4f4>] (kernel_read+0x0/0x64) from [<0006e660>] (prepare_binprm+0x108/0x114)
 r5:01c38000 r4:01e59200
[<0006e558>] (prepare_binprm+0x0/0x114) from [<0006ed50>] (do_execve+0x278/0x560)
 r4:01e59200
[<0006ead8>] (do_execve+0x0/0x560) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c5adc>] (kernel_init+0x98/0x104)
 r5:002c5a44 r4:003e33c0
[<002c5a44>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:80000002
BUG: scheduling while atomic: swapper/1/0x00000003
4 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<0006ea10>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000bf9bc>] jffs2_readpage+0x28/0x4c
 #2:  (&flash->lock){......}, at: [<00158154>] m25p80_read+0xb4/0x134
 #3:  (lock){......}, at: [<00158b0c>] spi_write_then_read+0x38/0x158
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Not tainted 3.13.0-rc2-00080-g2f56e18-dirty #1987
Backtrace: 
[<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
 r6:003c9ce8 r5:00000000 r4:01c30000 r3:00200140
[<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
[<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
[<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
 r5:01c38000 r4:01c30000
[<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
[<002cb0ec>] (schedule+0x0/0x8c) from [<002ca738>] (schedule_timeout+0x20/0x15c)
[<002ca718>] (schedule_timeout+0x0/0x15c) from [<002cb80c>] (wait_for_common+0xe0/0x178)
 r8:01c38000 r7:00000002 r6:01c398e4 r5:01c398e0 r4:7fffffff
[<002cb72c>] (wait_for_common+0x0/0x178) from [<002cb8bc>] (wait_for_completion+0x18/0x1c)
[<002cb8a4>] (wait_for_completion+0x0/0x1c) from [<00158a80>] (__spi_sync+0xbc/0xe0)
[<001589c4>] (__spi_sync+0x0/0xe0) from [<00158ad0>] (spi_sync+0x14/0x18)
[<00158abc>] (spi_sync+0x0/0x18) from [<00158bd4>] (spi_write_then_read+0x100/0x158)
[<00158ad4>] (spi_write_then_read+0x0/0x158) from [<00157084>] (read_sr+0x34/0x5c)
[<00157050>] (read_sr+0x0/0x5c) from [<00157724>] (wait_till_ready+0x24/0x70)
 r5:ffffab54 r4:003c89d0
[<00157700>] (wait_till_ready+0x0/0x70) from [<0015815c>] (m25p80_read+0xbc/0x134)
 r6:01cdd814 r5:01c39ab8 r4:01cdd860 r3:01c38000
[<001580a0>] (m25p80_read+0x0/0x134) from [<00152650>] (part_read+0x64/0xac)
[<001525ec>] (part_read+0x0/0xac) from [<0014f814>] (mtd_read+0x90/0xc8)
 r7:01c39c04 r6:01e26400 r4:001fe33c
[<0014f784>] (mtd_read+0x0/0xc8) from [<000cf110>] (jffs2_flash_read+0x48/0x220)
 r9:019b2000 r8:01e55c10 r7:00000044 r6:01c39c04 r5:00001cc4
r4:01e56400
[<000cf0c8>] (jffs2_flash_read+0x0/0x220) from [<000c0d8c>] (jffs2_read_dnode+0x68/0x460)
[<000c0d24>] (jffs2_read_dnode+0x0/0x460) from [<000c1280>] (jffs2_read_inode_range+0xfc/0x15c)
[<000c1184>] (jffs2_read_inode_range+0x0/0x15c) from [<000bf5d8>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000bf568>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000bf980>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:00810640 r5:0147abb8 r4:00810640
[<000bf96c>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000bf9cc>] (jffs2_readpage+0x38/0x4c)
 r5:0147abb8 r4:00810640
[<000bf994>] (jffs2_readpage+0x0/0x4c) from [<000584f0>] (__do_page_cache_readahead+0x1fc/0x260)
 r5:00000004 r4:0147ad2c
[<000582f4>] (__do_page_cache_readahead+0x0/0x260) from [<000587cc>] (ra_submit+0x2c/0x34)
[<000587a0>] (ra_submit+0x0/0x34) from [<00058ae0>] (ondemand_readahead+0x30c/0x330)
[<000587d4>] (ondemand_readahead+0x0/0x330) from [<00058c0c>] (page_cache_sync_readahead+0x60/0x68)
[<00058bac>] (page_cache_sync_readahead+0x0/0x68) from [<00050f5c>] (generic_file_aio_read+0x2e0/0x768)
 r5:00000000 r4:00000001
[<00050c7c>] (generic_file_aio_read+0x0/0x768) from [<00069300>] (do_sync_read+0x88/0xd0)
[<00069278>] (do_sync_read+0x0/0xd0) from [<00069b84>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e59200 r5:01c39ef8 r4:01c0fc40
[<00069ad8>] (vfs_read+0x0/0xf4) from [<0006e528>] (kernel_read+0x34/0x64)
 r7:003568ab r6:00000000 r5:01c0fc40 r4:01c39ef8
[<0006e4f4>] (kernel_read+0x0/0x64) from [<0006e660>] (prepare_binprm+0x108/0x114)
 r5:01c38000 r4:01e59200
[<0006e558>] (prepare_binprm+0x0/0x114) from [<0006ed50>] (do_execve+0x278/0x560)
 r4:01e59200
[<0006ead8>] (do_execve+0x0/0x560) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c5adc>] (kernel_init+0x98/0x104)
 r5:002c5a44 r4:003e33c0
[<002c5a44>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:80000002
BUG: scheduling while atomic: jffs2_gcd_mtd1/35/0x00000002
3 locks held by jffs2_gcd_mtd1/35:
 #0:  (&c->alloc_sem){......}, at: [<000c8b88>] jffs2_garbage_collect_pass+0x24/0x794
 #1:  (&f->sem#2){......}, at: [<000c4914>] jffs2_do_crccheck_inode+0x4c/0xa0
 #2:  (&flash->lock){......}, at: [<00158154>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 35 Comm: jffs2_gcd_mtd1 Tainted: G        W    3.13.0-rc2-00080-g2f56e18-dirty #1987
Backtrace: 
[<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
 r6:003c9ce8 r5:00000000 r4:01cf9d80 r3:00208040
[<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
[<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
[<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
 r5:01e72000 r4:01cf9d80
[<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
[<002cb0ec>] (schedule+0x0/0x8c) from [<002cb314>] (schedule_preempt_disabled+0x28/0x38)
[<002cb2ec>] (schedule_preempt_disabled+0x0/0x38) from [<002cc76c>] (mutex_lock_nested+0x1ac/0x2e4)
 r4:01cdd814 r3:00000001
[<002cc5c0>] (mutex_lock_nested+0x0/0x2e4) from [<00158154>] (m25p80_read+0xb4/0x134)
 r8:00000028 r7:00000232 r6:01cdd814 r5:01e73bf8 r4:01cdd860
[<001580a0>] (m25p80_read+0x0/0x134) from [<00152650>] (part_read+0x64/0xac)
[<001525ec>] (part_read+0x0/0xac) from [<0014f814>] (mtd_read+0x90/0xc8)
 r7:01e73d7c r6:01e26400 r4:0017c594
[<0014f784>] (mtd_read+0x0/0xc8) from [<000cf110>] (jffs2_flash_read+0x48/0x220)
 r9:00000008 r8:01e56c00 r7:00000028 r6:01e73d7c r5:01e56400
r4:01e56400
[<000cf0c8>] (jffs2_flash_read+0x0/0x220) from [<000c2964>] (jffs2_do_read_inode_internal+0x1b8/0x1ebc)
[<000c27ac>] (jffs2_do_read_inode_internal+0x0/0x1ebc) from [<000c4928>] (jffs2_do_crccheck_inode+0x60/0xa0)
[<000c48c8>] (jffs2_do_crccheck_inode+0x0/0xa0) from [<000c8cfc>] (jffs2_garbage_collect_pass+0x198/0x794)
 r6:01c56060 r5:01e565d8 r4:01e56400
[<000c8b64>] (jffs2_garbage_collect_pass+0x0/0x794) from [<000ca7dc>] (jffs2_garbage_collect_thread+0x138/0x170)
[<000ca6a4>] (jffs2_garbage_collect_thread+0x0/0x170) from [<00028618>] (kthread+0xcc/0xe0)
[<0002854c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002854c r4:01e5e020
BUG: scheduling while atomic: spi0/27/0x00000005
no locks held by spi0/27.
Modules linked in:
CPU: 0 PID: 27 Comm: spi0 Tainted: G        W    3.13.0-rc2-00080-g2f56e18-dirty #1987
Backtrace: 
[<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
 r6:003c9ce8 r5:00000000 r4:01cf8000 r3:00208040
[<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
[<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
[<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
 r5:01e1e000 r4:01cf8000
[<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
[<002cb0ec>] (schedule+0x0/0x8c) from [<00028450>] (kthread_worker_fn+0xd8/0xe4)
[<00028378>] (kthread_worker_fn+0x0/0xe4) from [<00028618>] (kthread+0xcc/0xe0)
 r8:00000000 r7:00028378 r6:01cdd5dc r5:00000000 r4:01e19ae0
r3:01e1e000
[<0002854c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002854c r4:01e19ae0
BUG: scheduling while atomic: swapper/1/0x00000006
3 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<0006ea10>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000bf9bc>] jffs2_readpage+0x28/0x4c
 #2:  (&flash->lock){......}, at: [<00158154>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.13.0-rc2-00080-g2f56e18-dirty #1987
Backtrace: 
[<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
 r6:003c9ce8 r5:00000000 r4:01c30000 r3:00200140
[<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
[<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
[<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
 r5:01c38000 r4:01c30000
[<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
[<002cb0ec>] (schedule+0x0/0x8c) from [<002ca738>] (schedule_timeout+0x20/0x15c)
[<002ca718>] (schedule_timeout+0x0/0x15c) from [<002cb80c>] (wait_for_common+0xe0/0x178)
 r8:01c38000 r7:00000002 r6:01c399dc r5:01c399d8 r4:7fffffff
[<002cb72c>] (wait_for_common+0x0/0x178) from [<002cb8bc>] (wait_for_completion+0x18/0x1c)
[<002cb8a4>] (wait_for_completion+0x0/0x1c) from [<00158a80>] (__spi_sync+0xbc/0xe0)
[<001589c4>] (__spi_sync+0x0/0xe0) from [<00158ad0>] (spi_sync+0x14/0x18)
[<00158abc>] (spi_sync+0x0/0x18) from [<0015819c>] (m25p80_read+0xfc/0x134)
[<001580a0>] (m25p80_read+0x0/0x134) from [<00152650>] (part_read+0x64/0xac)
[<001525ec>] (part_read+0x0/0xac) from [<0014f814>] (mtd_read+0x90/0xc8)
 r7:01c39c04 r6:01e26400 r4:001fe33c
[<0014f784>] (mtd_read+0x0/0xc8) from [<000cf110>] (jffs2_flash_read+0x48/0x220)
 r9:019b2000 r8:01e55c10 r7:00000044 r6:01c39c04 r5:00001cc4
r4:01e56400
[<000cf0c8>] (jffs2_flash_read+0x0/0x220) from [<000c0d8c>] (jffs2_read_dnode+0x68/0x460)
[<000c0d24>] (jffs2_read_dnode+0x0/0x460) from [<000c1280>] (jffs2_read_inode_range+0xfc/0x15c)
[<000c1184>] (jffs2_read_inode_range+0x0/0x15c) from [<000bf5d8>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000bf568>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000bf980>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:00810640 r5:0147abb8 r4:00810640
[<000bf96c>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000bf9cc>] (jffs2_readpage+0x38/0x4c)
 r5:0147abb8 r4:00810640
[<000bf994>] (jffs2_readpage+0x0/0x4c) from [<000584f0>] (__do_page_cache_readahead+0x1fc/0x260)
 r5:00000004 r4:0147ad2c
[<000582f4>] (__do_page_cache_readahead+0x0/0x260) from [<000587cc>] (ra_submit+0x2c/0x34)
[<000587a0>] (ra_submit+0x0/0x34) from [<00058ae0>] (ondemand_readahead+0x30c/0x330)
[<000587d4>] (ondemand_readahead+0x0/0x330) from [<00058c0c>] (page_cache_sync_readahead+0x60/0x68)
[<00058bac>] (page_cache_sync_readahead+0x0/0x68) from [<00050f5c>] (generic_file_aio_read+0x2e0/0x768)
 r5:00000000 r4:00000001
[<00050c7c>] (generic_file_aio_read+0x0/0x768) from [<00069300>] (do_sync_read+0x88/0xd0)
[<00069278>] (do_sync_read+0x0/0xd0) from [<00069b84>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e59200 r5:01c39ef8 r4:01c0fc40
[<00069ad8>] (vfs_read+0x0/0xf4) from [<0006e528>] (kernel_read+0x34/0x64)
 r7:003568ab r6:00000000 r5:01c0fc40 r4:01c39ef8
[<0006e4f4>] (kernel_read+0x0/0x64) from [<0006e660>] (prepare_binprm+0x108/0x114)
 r5:01c38000 r4:01e59200
[<0006e558>] (prepare_binprm+0x0/0x114) from [<0006ed50>] (do_execve+0x278/0x560)
 r4:01e59200
[<0006ead8>] (do_execve+0x0/0x560) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c5adc>] (kernel_init+0x98/0x104)
 r5:002c5a44 r4:003e33c0
[<002c5a44>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:80000002
BUG: scheduling while atomic: spi0/27/0x00000009
no locks held by spi0/27.
Modules linked in:
CPU: 0 PID: 27 Comm: spi0 Tainted: G        W    3.13.0-rc2-00080-g2f56e18-dirty #1987
Backtrace: 
[<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
 r6:003c9ce8 r5:00000000 r4:01cf8000 r3:00208040
[<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
[<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
[<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
 r5:01e1e000 r4:01cf8000
[<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
[<002cb0ec>] (schedule+0x0/0x8c) from [<00028450>] (kthread_worker_fn+0xd8/0xe4)
[<00028378>] (kthread_worker_fn+0x0/0xe4) from [<00028618>] (kthread+0xcc/0xe0)
 r8:00000000 r7:00028378 r6:01cdd5dc r5:00000000 r4:01e19ae0
r3:01e1e000
[<0002854c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002854c r4:01e19ae0
......

Re: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616

[Axel Lin]

I can constantly hit this issue:

I trace it to mm/filemap.c: add_to_page_cache_locked
I print the in_atomic status at BEGIN and END of add_to_page_cache_locked call.
Then I got in_atomic is true at the end of add_to_page_cache_locked call.

int add_to_page_cache_locked(struct page *page, struct address_space *mapping,
                pgoff_t offset, gfp_t gfp_mask)
{
        int error;

        VM_BUG_ON(!PageLocked(page));
        VM_BUG_ON(PageSwapBacked(page));

pr_info(" ##add_to_page_cache_locked BEGIN in_atomic=%d\n", in_atomic());
        error = mem_cgroup_cache_charge(page, current->mm,
                                        gfp_mask & GFP_RECLAIM_MASK);
        if (error)
                return error;

        error = radix_tree_maybe_preload(gfp_mask & ~__GFP_HIGHMEM);
        if (error) {
                mem_cgroup_uncharge_cache_page(page);
                return error;
        }

        page_cache_get(page);
        page->mapping = mapping;
        page->index = offset;

        spin_lock_irq(&mapping->tree_lock);
        error = radix_tree_insert(&mapping->page_tree, offset, page);
        radix_tree_preload_end();
        if (unlikely(error))
                goto err_insert;
        mapping->nrpages++;
        __inc_zone_page_state(page, NR_FILE_PAGES);
        spin_unlock_irq(&mapping->tree_lock);
        trace_mm_filemap_add_to_page_cache(page);
pr_info(" ##add_to_page_cache_locked END in_atomic=%d\n", in_atomic());
        return 0;
err_insert:
        page->mapping = NULL;
        /* Leave page->index set: truncation relies upon it */
        spin_unlock_irq(&mapping->tree_lock);
        mem_cgroup_uncharge_cache_page(page);
        page_cache_release(page);
pr_info(" ##add_to_page_cache_locked ERR in_atomic=%d\n", in_atomic());
        return error;
}

Then I got below messages:
 ##add_to_page_cache_locked BEGIN in_atomic=0
 ##add_to_page_cache_locked END in_atomic=0
 ##add_to_page_cache_locked BEGIN in_atomic=0
 ##add_to_page_cache_locked END in_atomic=0
 ##add_to_page_cache_locked BEGIN in_atomic=0
 ##add_to_page_cache_locked END in_atomic=1
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616
in_atomic(): 1, irqs_disabled(): 128, pid: 1, name: swapper
1 lock held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073fac>] prepare_bprm_creds+0x30/0x6c
CPU: 0 PID: 1 Comm: swapper Not tainted 3.13.0-rc2-00203-g34074bc-dirty #2022
Backtrace:
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:00000000 r5:0147abb8 r4:01c34000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca948>] (dump_stack+0x20/0x28)
[<002ca928>] (dump_stack+0x0/0x28) from [<0002e3b8>] (__might_sleep+0xfc/0x11c)
[<0002e2bc>] (__might_sleep+0x0/0x11c) from [<002ce0a8>] (mutex_lock_nested+0x2c/0x30c)
 r4:0147abb8
[<002ce07c>] (mutex_lock_nested+0x0/0x30c) from [<000c4e9c>] (jffs2_readpage+0x50/0x78)
 r8:0081a654 r7:00000002 r6:01c34000 r5:0147abb8 r4:0081a640
[<000c4e4c>] (jffs2_readpage+0x0/0x78) from [<0005d854>] (__do_page_cache_readahead+0x2a0/0x338)
 r5:00000004 r4:0147ad2c
[<0005d5b4>] (__do_page_cache_readahead+0x0/0x338) from [<0005db94>] (ra_submit+0x5c/0x68)
[<0005db38>] (ra_submit+0x0/0x68) from [<0005de8c>] (ondemand_readahead+0x2ec/0x314)
 r6:00000000 r5:00000020 r4:01c0fcc8
[<0005dba0>] (ondemand_readahead+0x0/0x314) from [<0005dff8>] (page_cache_sync_readahead+0x9c/0xa8)
[<0005df5c>] (page_cache_sync_readahead+0x0/0xa8) from [<000561ec>] (generic_file_aio_read+0x314/0x7b0)
 r8:01c35eb0 r7:01c0fc40 r6:0147ad2c r5:00000000 r4:00000001
[<00055ed8>] (generic_file_aio_read+0x0/0x7b0) from [<0006e7ec>] (do_sync_read+0x88/0xd0)
[<0006e764>] (do_sync_read+0x0/0xd0) from [<0006f0e0>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006f034>] (vfs_read+0x0/0xf4) from [<00073acc>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<00073aa8>] (kernel_read+0x0/0x2c) from [<00073bf8>] (prepare_binprm+0x124/0x134)
[<00073ad4>] (prepare_binprm+0x0/0x134) from [<000742c4>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00074074>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c74f0>] (kernel_init+0x98/0x104)
 r5:002c7458 r4:003e8300
[<002c7458>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff


於 日，2013-12-01 於 18:53 +0800，Axel Lin 提到：
> Hi,
> I got below messages while booting.
> Testing on a nommu platform with 3.13.0-rc2 + patches for this SoC.
> 
> VFS: Mounted root (jffs2 filesystem) on device 31:1.
> devtmpfs: mounted
> Freeing unused kernel memory: 92K (003a4000 - 003bb000)
> BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616
> in_atomic(): 1, irqs_disabled(): 128, pid: 1, name: swapper
> 1 lock held by swapper/1:
>  #0:  (&sig->cred_guard_mutex){......}, at: [<0006ea10>] prepare_bprm_creds+0x30/0x6c
> CPU: 0 PID: 1 Comm: swapper Not tainted 3.13.0-rc2-00080-g2f56e18-dirty #1987
> Backtrace: 
> [<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
>  r6:00000000 r5:0147abb8 r4:01c38000 r3:00200140
> [<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
> [<002c8f08>] (dump_stack+0x0/0x28) from [<0002e3dc>] (__might_sleep+0xf0/0x110)
> [<0002e2ec>] (__might_sleep+0x0/0x110) from [<002cc5ec>] (mutex_lock_nested+0x2c/0x2e4)
>  r4:0147abb8
> [<002cc5c0>] (mutex_lock_nested+0x0/0x2e4) from [<000bf9bc>] (jffs2_readpage+0x28/0x4c)
>  r8:00100100 r7:00000002 r6:00810640 r5:0147abb8 r4:00810640
> [<000bf994>] (jffs2_readpage+0x0/0x4c) from [<000584f0>] (__do_page_cache_readahead+0x1fc/0x260)
>  r5:00000004 r4:0147ad2c
> [<000582f4>] (__do_page_cache_readahead+0x0/0x260) from [<000587cc>] (ra_submit+0x2c/0x34)
> [<000587a0>] (ra_submit+0x0/0x34) from [<00058ae0>] (ondemand_readahead+0x30c/0x330)
> [<000587d4>] (ondemand_readahead+0x0/0x330) from [<00058c0c>] (page_cache_sync_readahead+0x60/0x68)
> [<00058bac>] (page_cache_sync_readahead+0x0/0x68) from [<00050f5c>] (generic_file_aio_read+0x2e0/0x768)
>  r5:00000000 r4:00000001
> [<00050c7c>] (generic_file_aio_read+0x0/0x768) from [<00069300>] (do_sync_read+0x88/0xd0)
> [<00069278>] (do_sync_read+0x0/0xd0) from [<00069b84>] (vfs_read+0xac/0xf4)
>  r7:00000080 r6:01e59200 r5:01c39ef8 r4:01c0fc40
> [<00069ad8>] (vfs_read+0x0/0xf4) from [<0006e528>] (kernel_read+0x34/0x64)
>  r7:003568ab r6:00000000 r5:01c0fc40 r4:01c39ef8
> [<0006e4f4>] (kernel_read+0x0/0x64) from [<0006e660>] (prepare_binprm+0x108/0x114)
>  r5:01c38000 r4:01e59200
> [<0006e558>] (prepare_binprm+0x0/0x114) from [<0006ed50>] (do_execve+0x278/0x560)
>  r4:01e59200
> [<0006ead8>] (do_execve+0x0/0x560) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
> [<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c5adc>] (kernel_init+0x98/0x104)
>  r5:002c5a44 r4:003e33c0
> [<002c5a44>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
>  r4:00000000 r3:80000002
> BUG: scheduling while atomic: swapper/1/0x00000003
> 4 locks held by swapper/1:
>  #0:  (&sig->cred_guard_mutex){......}, at: [<0006ea10>] prepare_bprm_creds+0x30/0x6c
>  #1:  (&f->sem){......}, at: [<000bf9bc>] jffs2_readpage+0x28/0x4c
>  #2:  (&flash->lock){......}, at: [<00158154>] m25p80_read+0xb4/0x134
>  #3:  (lock){......}, at: [<00158b0c>] spi_write_then_read+0x38/0x158
> Modules linked in:
> CPU: 0 PID: 1 Comm: swapper Not tainted 3.13.0-rc2-00080-g2f56e18-dirty #1987
> Backtrace: 
> [<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
>  r6:003c9ce8 r5:00000000 r4:01c30000 r3:00200140
> [<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
> [<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
> [<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
>  r5:01c38000 r4:01c30000
> [<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
> [<002cb0ec>] (schedule+0x0/0x8c) from [<002ca738>] (schedule_timeout+0x20/0x15c)
> [<002ca718>] (schedule_timeout+0x0/0x15c) from [<002cb80c>] (wait_for_common+0xe0/0x178)
>  r8:01c38000 r7:00000002 r6:01c398e4 r5:01c398e0 r4:7fffffff
> [<002cb72c>] (wait_for_common+0x0/0x178) from [<002cb8bc>] (wait_for_completion+0x18/0x1c)
> [<002cb8a4>] (wait_for_completion+0x0/0x1c) from [<00158a80>] (__spi_sync+0xbc/0xe0)
> [<001589c4>] (__spi_sync+0x0/0xe0) from [<00158ad0>] (spi_sync+0x14/0x18)
> [<00158abc>] (spi_sync+0x0/0x18) from [<00158bd4>] (spi_write_then_read+0x100/0x158)
> [<00158ad4>] (spi_write_then_read+0x0/0x158) from [<00157084>] (read_sr+0x34/0x5c)
> [<00157050>] (read_sr+0x0/0x5c) from [<00157724>] (wait_till_ready+0x24/0x70)
>  r5:ffffab54 r4:003c89d0
> [<00157700>] (wait_till_ready+0x0/0x70) from [<0015815c>] (m25p80_read+0xbc/0x134)
>  r6:01cdd814 r5:01c39ab8 r4:01cdd860 r3:01c38000
> [<001580a0>] (m25p80_read+0x0/0x134) from [<00152650>] (part_read+0x64/0xac)
> [<001525ec>] (part_read+0x0/0xac) from [<0014f814>] (mtd_read+0x90/0xc8)
>  r7:01c39c04 r6:01e26400 r4:001fe33c
> [<0014f784>] (mtd_read+0x0/0xc8) from [<000cf110>] (jffs2_flash_read+0x48/0x220)
>  r9:019b2000 r8:01e55c10 r7:00000044 r6:01c39c04 r5:00001cc4
> r4:01e56400
> [<000cf0c8>] (jffs2_flash_read+0x0/0x220) from [<000c0d8c>] (jffs2_read_dnode+0x68/0x460)
> [<000c0d24>] (jffs2_read_dnode+0x0/0x460) from [<000c1280>] (jffs2_read_inode_range+0xfc/0x15c)
> [<000c1184>] (jffs2_read_inode_range+0x0/0x15c) from [<000bf5d8>] (jffs2_do_readpage_nolock+0x70/0x100)
> [<000bf568>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000bf980>] (jffs2_do_readpage_unlock+0x14/0x28)
>  r6:00810640 r5:0147abb8 r4:00810640
> [<000bf96c>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000bf9cc>] (jffs2_readpage+0x38/0x4c)
>  r5:0147abb8 r4:00810640
> [<000bf994>] (jffs2_readpage+0x0/0x4c) from [<000584f0>] (__do_page_cache_readahead+0x1fc/0x260)
>  r5:00000004 r4:0147ad2c
> [<000582f4>] (__do_page_cache_readahead+0x0/0x260) from [<000587cc>] (ra_submit+0x2c/0x34)
> [<000587a0>] (ra_submit+0x0/0x34) from [<00058ae0>] (ondemand_readahead+0x30c/0x330)
> [<000587d4>] (ondemand_readahead+0x0/0x330) from [<00058c0c>] (page_cache_sync_readahead+0x60/0x68)
> [<00058bac>] (page_cache_sync_readahead+0x0/0x68) from [<00050f5c>] (generic_file_aio_read+0x2e0/0x768)
>  r5:00000000 r4:00000001
> [<00050c7c>] (generic_file_aio_read+0x0/0x768) from [<00069300>] (do_sync_read+0x88/0xd0)
> [<00069278>] (do_sync_read+0x0/0xd0) from [<00069b84>] (vfs_read+0xac/0xf4)
>  r7:00000080 r6:01e59200 r5:01c39ef8 r4:01c0fc40
> [<00069ad8>] (vfs_read+0x0/0xf4) from [<0006e528>] (kernel_read+0x34/0x64)
>  r7:003568ab r6:00000000 r5:01c0fc40 r4:01c39ef8
> [<0006e4f4>] (kernel_read+0x0/0x64) from [<0006e660>] (prepare_binprm+0x108/0x114)
>  r5:01c38000 r4:01e59200
> [<0006e558>] (prepare_binprm+0x0/0x114) from [<0006ed50>] (do_execve+0x278/0x560)
>  r4:01e59200
> [<0006ead8>] (do_execve+0x0/0x560) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
> [<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c5adc>] (kernel_init+0x98/0x104)
>  r5:002c5a44 r4:003e33c0
> [<002c5a44>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
>  r4:00000000 r3:80000002
> BUG: scheduling while atomic: jffs2_gcd_mtd1/35/0x00000002
> 3 locks held by jffs2_gcd_mtd1/35:
>  #0:  (&c->alloc_sem){......}, at: [<000c8b88>] jffs2_garbage_collect_pass+0x24/0x794
>  #1:  (&f->sem#2){......}, at: [<000c4914>] jffs2_do_crccheck_inode+0x4c/0xa0
>  #2:  (&flash->lock){......}, at: [<00158154>] m25p80_read+0xb4/0x134
> Modules linked in:
> CPU: 0 PID: 35 Comm: jffs2_gcd_mtd1 Tainted: G        W    3.13.0-rc2-00080-g2f56e18-dirty #1987
> Backtrace: 
> [<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
>  r6:003c9ce8 r5:00000000 r4:01cf9d80 r3:00208040
> [<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
> [<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
> [<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
>  r5:01e72000 r4:01cf9d80
> [<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
> [<002cb0ec>] (schedule+0x0/0x8c) from [<002cb314>] (schedule_preempt_disabled+0x28/0x38)
> [<002cb2ec>] (schedule_preempt_disabled+0x0/0x38) from [<002cc76c>] (mutex_lock_nested+0x1ac/0x2e4)
>  r4:01cdd814 r3:00000001
> [<002cc5c0>] (mutex_lock_nested+0x0/0x2e4) from [<00158154>] (m25p80_read+0xb4/0x134)
>  r8:00000028 r7:00000232 r6:01cdd814 r5:01e73bf8 r4:01cdd860
> [<001580a0>] (m25p80_read+0x0/0x134) from [<00152650>] (part_read+0x64/0xac)
> [<001525ec>] (part_read+0x0/0xac) from [<0014f814>] (mtd_read+0x90/0xc8)
>  r7:01e73d7c r6:01e26400 r4:0017c594
> [<0014f784>] (mtd_read+0x0/0xc8) from [<000cf110>] (jffs2_flash_read+0x48/0x220)
>  r9:00000008 r8:01e56c00 r7:00000028 r6:01e73d7c r5:01e56400
> r4:01e56400
> [<000cf0c8>] (jffs2_flash_read+0x0/0x220) from [<000c2964>] (jffs2_do_read_inode_internal+0x1b8/0x1ebc)
> [<000c27ac>] (jffs2_do_read_inode_internal+0x0/0x1ebc) from [<000c4928>] (jffs2_do_crccheck_inode+0x60/0xa0)
> [<000c48c8>] (jffs2_do_crccheck_inode+0x0/0xa0) from [<000c8cfc>] (jffs2_garbage_collect_pass+0x198/0x794)
>  r6:01c56060 r5:01e565d8 r4:01e56400
> [<000c8b64>] (jffs2_garbage_collect_pass+0x0/0x794) from [<000ca7dc>] (jffs2_garbage_collect_thread+0x138/0x170)
> [<000ca6a4>] (jffs2_garbage_collect_thread+0x0/0x170) from [<00028618>] (kthread+0xcc/0xe0)
> [<0002854c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
>  r7:00000000 r6:00000000 r5:0002854c r4:01e5e020
> BUG: scheduling while atomic: spi0/27/0x00000005
> no locks held by spi0/27.
> Modules linked in:
> CPU: 0 PID: 27 Comm: spi0 Tainted: G        W    3.13.0-rc2-00080-g2f56e18-dirty #1987
> Backtrace: 
> [<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
>  r6:003c9ce8 r5:00000000 r4:01cf8000 r3:00208040
> [<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
> [<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
> [<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
>  r5:01e1e000 r4:01cf8000
> [<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
> [<002cb0ec>] (schedule+0x0/0x8c) from [<00028450>] (kthread_worker_fn+0xd8/0xe4)
> [<00028378>] (kthread_worker_fn+0x0/0xe4) from [<00028618>] (kthread+0xcc/0xe0)
>  r8:00000000 r7:00028378 r6:01cdd5dc r5:00000000 r4:01e19ae0
> r3:01e1e000
> [<0002854c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
>  r7:00000000 r6:00000000 r5:0002854c r4:01e19ae0
> BUG: scheduling while atomic: swapper/1/0x00000006
> 3 locks held by swapper/1:
>  #0:  (&sig->cred_guard_mutex){......}, at: [<0006ea10>] prepare_bprm_creds+0x30/0x6c
>  #1:  (&f->sem){......}, at: [<000bf9bc>] jffs2_readpage+0x28/0x4c
>  #2:  (&flash->lock){......}, at: [<00158154>] m25p80_read+0xb4/0x134
> Modules linked in:
> CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.13.0-rc2-00080-g2f56e18-dirty #1987
> Backtrace: 
> [<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
>  r6:003c9ce8 r5:00000000 r4:01c30000 r3:00200140
> [<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
> [<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
> [<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
>  r5:01c38000 r4:01c30000
> [<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
> [<002cb0ec>] (schedule+0x0/0x8c) from [<002ca738>] (schedule_timeout+0x20/0x15c)
> [<002ca718>] (schedule_timeout+0x0/0x15c) from [<002cb80c>] (wait_for_common+0xe0/0x178)
>  r8:01c38000 r7:00000002 r6:01c399dc r5:01c399d8 r4:7fffffff
> [<002cb72c>] (wait_for_common+0x0/0x178) from [<002cb8bc>] (wait_for_completion+0x18/0x1c)
> [<002cb8a4>] (wait_for_completion+0x0/0x1c) from [<00158a80>] (__spi_sync+0xbc/0xe0)
> [<001589c4>] (__spi_sync+0x0/0xe0) from [<00158ad0>] (spi_sync+0x14/0x18)
> [<00158abc>] (spi_sync+0x0/0x18) from [<0015819c>] (m25p80_read+0xfc/0x134)
> [<001580a0>] (m25p80_read+0x0/0x134) from [<00152650>] (part_read+0x64/0xac)
> [<001525ec>] (part_read+0x0/0xac) from [<0014f814>] (mtd_read+0x90/0xc8)
>  r7:01c39c04 r6:01e26400 r4:001fe33c
> [<0014f784>] (mtd_read+0x0/0xc8) from [<000cf110>] (jffs2_flash_read+0x48/0x220)
>  r9:019b2000 r8:01e55c10 r7:00000044 r6:01c39c04 r5:00001cc4
> r4:01e56400
> [<000cf0c8>] (jffs2_flash_read+0x0/0x220) from [<000c0d8c>] (jffs2_read_dnode+0x68/0x460)
> [<000c0d24>] (jffs2_read_dnode+0x0/0x460) from [<000c1280>] (jffs2_read_inode_range+0xfc/0x15c)
> [<000c1184>] (jffs2_read_inode_range+0x0/0x15c) from [<000bf5d8>] (jffs2_do_readpage_nolock+0x70/0x100)
> [<000bf568>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000bf980>] (jffs2_do_readpage_unlock+0x14/0x28)
>  r6:00810640 r5:0147abb8 r4:00810640
> [<000bf96c>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000bf9cc>] (jffs2_readpage+0x38/0x4c)
>  r5:0147abb8 r4:00810640
> [<000bf994>] (jffs2_readpage+0x0/0x4c) from [<000584f0>] (__do_page_cache_readahead+0x1fc/0x260)
>  r5:00000004 r4:0147ad2c
> [<000582f4>] (__do_page_cache_readahead+0x0/0x260) from [<000587cc>] (ra_submit+0x2c/0x34)
> [<000587a0>] (ra_submit+0x0/0x34) from [<00058ae0>] (ondemand_readahead+0x30c/0x330)
> [<000587d4>] (ondemand_readahead+0x0/0x330) from [<00058c0c>] (page_cache_sync_readahead+0x60/0x68)
> [<00058bac>] (page_cache_sync_readahead+0x0/0x68) from [<00050f5c>] (generic_file_aio_read+0x2e0/0x768)
>  r5:00000000 r4:00000001
> [<00050c7c>] (generic_file_aio_read+0x0/0x768) from [<00069300>] (do_sync_read+0x88/0xd0)
> [<00069278>] (do_sync_read+0x0/0xd0) from [<00069b84>] (vfs_read+0xac/0xf4)
>  r7:00000080 r6:01e59200 r5:01c39ef8 r4:01c0fc40
> [<00069ad8>] (vfs_read+0x0/0xf4) from [<0006e528>] (kernel_read+0x34/0x64)
>  r7:003568ab r6:00000000 r5:01c0fc40 r4:01c39ef8
> [<0006e4f4>] (kernel_read+0x0/0x64) from [<0006e660>] (prepare_binprm+0x108/0x114)
>  r5:01c38000 r4:01e59200
> [<0006e558>] (prepare_binprm+0x0/0x114) from [<0006ed50>] (do_execve+0x278/0x560)
>  r4:01e59200
> [<0006ead8>] (do_execve+0x0/0x560) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
> [<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c5adc>] (kernel_init+0x98/0x104)
>  r5:002c5a44 r4:003e33c0
> [<002c5a44>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
>  r4:00000000 r3:80000002
> BUG: scheduling while atomic: spi0/27/0x00000009
> no locks held by spi0/27.
> Modules linked in:
> CPU: 0 PID: 27 Comm: spi0 Tainted: G        W    3.13.0-rc2-00080-g2f56e18-dirty #1987
> Backtrace: 
> [<0000b1e8>] (dump_backtrace+0x0/0x108) from [<0000b37c>] (show_stack+0x18/0x1c)
>  r6:003c9ce8 r5:00000000 r4:01cf8000 r3:00208040
> [<0000b364>] (show_stack+0x0/0x1c) from [<002c8f28>] (dump_stack+0x20/0x28)
> [<002c8f08>] (dump_stack+0x0/0x28) from [<002c7984>] (__schedule_bug+0x58/0x70)
> [<002c792c>] (__schedule_bug+0x0/0x70) from [<002cad30>] (__schedule+0x58/0x390)
>  r5:01e1e000 r4:01cf8000
> [<002cacd8>] (__schedule+0x0/0x390) from [<002cb174>] (schedule+0x88/0x8c)
> [<002cb0ec>] (schedule+0x0/0x8c) from [<00028450>] (kthread_worker_fn+0xd8/0xe4)
> [<00028378>] (kthread_worker_fn+0x0/0xe4) from [<00028618>] (kthread+0xcc/0xe0)
>  r8:00000000 r7:00028378 r6:01cdd5dc r5:00000000 r4:01e19ae0
> r3:01e1e000
> [<0002854c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
>  r7:00000000 r6:00000000 r5:0002854c r4:01e19ae0
> ......
> 

Re: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616

[Andrew Morton]

On Wed, 04 Dec 2013 16:13:31 +0800 Axel Lin <axel.lin@ingics.com> wrote:

> I can constantly hit this issue:
> 
> I trace it to mm/filemap.c: add_to_page_cache_locked
> I print the in_atomic status at BEGIN and END of add_to_page_cache_locked call.
> Then I got in_atomic is true at the end of add_to_page_cache_locked call.
> 
> int add_to_page_cache_locked(struct page *page, struct address_space *mapping,
>                 pgoff_t offset, gfp_t gfp_mask)
> {
>         int error;
> 
>         VM_BUG_ON(!PageLocked(page));
>         VM_BUG_ON(PageSwapBacked(page));
> 
> pr_info(" ##add_to_page_cache_locked BEGIN in_atomic=%d\n", in_atomic());
>         error = mem_cgroup_cache_charge(page, current->mm,
>                                         gfp_mask & GFP_RECLAIM_MASK);
>         if (error)
>                 return error;
> 
>         error = radix_tree_maybe_preload(gfp_mask & ~__GFP_HIGHMEM);
>         if (error) {
>                 mem_cgroup_uncharge_cache_page(page);
>                 return error;
>         }
> 
>         page_cache_get(page);
>         page->mapping = mapping;
>         page->index = offset;
> 
>         spin_lock_irq(&mapping->tree_lock);
>         error = radix_tree_insert(&mapping->page_tree, offset, page);
>         radix_tree_preload_end();
>         if (unlikely(error))
>                 goto err_insert;
>         mapping->nrpages++;
>         __inc_zone_page_state(page, NR_FILE_PAGES);
>         spin_unlock_irq(&mapping->tree_lock);
>         trace_mm_filemap_add_to_page_cache(page);
> pr_info(" ##add_to_page_cache_locked END in_atomic=%d\n", in_atomic());
>         return 0;
> err_insert:
>         page->mapping = NULL;
>         /* Leave page->index set: truncation relies upon it */
>         spin_unlock_irq(&mapping->tree_lock);
>         mem_cgroup_uncharge_cache_page(page);
>         page_cache_release(page);
> pr_info(" ##add_to_page_cache_locked ERR in_atomic=%d\n", in_atomic());
>         return error;
> }
> 
> Then I got below messages:
>  ##add_to_page_cache_locked BEGIN in_atomic=0
>  ##add_to_page_cache_locked END in_atomic=0
>  ##add_to_page_cache_locked BEGIN in_atomic=0
>  ##add_to_page_cache_locked END in_atomic=0
>  ##add_to_page_cache_locked BEGIN in_atomic=0
>  ##add_to_page_cache_locked END in_atomic=1

huh.  I can't spot it.  mem_cgroup_cache_charge() is by far the most
complex callee.

Is tracing enabled?

Is memcg in use?

Please add a lot more printk's so we can narrow it down further?  I'd
use something like 

	printk(%d: %d\n", __LINE__, preempt_count());

(note: preempt_count(), not in_atomic())

Paste that all over the place so we can see which statement is doing
the wrong thing.  

Thanks.

Re: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616

[Axel Lin]

於 三，2013-12-04 於 00:31 -0800，Andrew Morton 提到：
> On Wed, 04 Dec 2013 16:13:31 +0800 Axel Lin <axel.lin@ingics.com> wrote:
> 
> > I can constantly hit this issue:
> > 
> > I trace it to mm/filemap.c: add_to_page_cache_locked
> > I print the in_atomic status at BEGIN and END of add_to_page_cache_locked call.
> > Then I got in_atomic is true at the end of add_to_page_cache_locked call.
> > 
> > int add_to_page_cache_locked(struct page *page, struct address_space *mapping,
> >                 pgoff_t offset, gfp_t gfp_mask)
> > {
> >         int error;
> > 
> >         VM_BUG_ON(!PageLocked(page));
> >         VM_BUG_ON(PageSwapBacked(page));
> > 
> > pr_info(" ##add_to_page_cache_locked BEGIN in_atomic=%d\n", in_atomic());
> >         error = mem_cgroup_cache_charge(page, current->mm,
> >                                         gfp_mask & GFP_RECLAIM_MASK);
> >         if (error)
> >                 return error;
> > 
> >         error = radix_tree_maybe_preload(gfp_mask & ~__GFP_HIGHMEM);
> >         if (error) {
> >                 mem_cgroup_uncharge_cache_page(page);
> >                 return error;
> >         }
> > 
> >         page_cache_get(page);
> >         page->mapping = mapping;
> >         page->index = offset;
> > 
> >         spin_lock_irq(&mapping->tree_lock);
> >         error = radix_tree_insert(&mapping->page_tree, offset, page);
> >         radix_tree_preload_end();
> >         if (unlikely(error))
> >                 goto err_insert;
> >         mapping->nrpages++;
> >         __inc_zone_page_state(page, NR_FILE_PAGES);
> >         spin_unlock_irq(&mapping->tree_lock);
> >         trace_mm_filemap_add_to_page_cache(page);
> > pr_info(" ##add_to_page_cache_locked END in_atomic=%d\n", in_atomic());
> >         return 0;
> > err_insert:
> >         page->mapping = NULL;
> >         /* Leave page->index set: truncation relies upon it */
> >         spin_unlock_irq(&mapping->tree_lock);
> >         mem_cgroup_uncharge_cache_page(page);
> >         page_cache_release(page);
> > pr_info(" ##add_to_page_cache_locked ERR in_atomic=%d\n", in_atomic());
> >         return error;
> > }
> > 
> > Then I got below messages:
> >  ##add_to_page_cache_locked BEGIN in_atomic=0
> >  ##add_to_page_cache_locked END in_atomic=0
> >  ##add_to_page_cache_locked BEGIN in_atomic=0
> >  ##add_to_page_cache_locked END in_atomic=0
> >  ##add_to_page_cache_locked BEGIN in_atomic=0
> >  ##add_to_page_cache_locked END in_atomic=1
> 
> huh.  I can't spot it.  mem_cgroup_cache_charge() is by far the most
> complex callee.
> 
> Is tracing enabled?

CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACING_SUPPORT=y

But I don't us tracing, system hang while mounting root(jffs2).

> 
> Is memcg in use?
No.

> 
> Please add a lot more printk's so we can narrow it down further?  I'd
> use something like 
> 
> 	printk(%d: %d\n", __LINE__, preempt_count());
> 
> (note: preempt_count(), not in_atomic())
> 
> Paste that all over the place so we can see which statement is doing
> the wrong thing.  

Below is the code ( to show the line number ):

459 int add_to_page_cache_locked(struct page *page, struct address_space
*mapping,
 460                 pgoff_t offset, gfp_t gfp_mask)
 461 {
 462         int error;
 463 
 464         VM_BUG_ON(!PageLocked(page));
 465         VM_BUG_ON(PageSwapBacked(page));
 466 
 467         printk("%d: %d\n", __LINE__, preempt_count());
 468         error = mem_cgroup_cache_charge(page, current->mm,
 469                                         gfp_mask &
GFP_RECLAIM_MASK);
 470 printk("%d: %d\n", __LINE__, preempt_count());
 471         if (error)
 472                 return error;
 473 
 474         error = radix_tree_maybe_preload(gfp_mask &
~__GFP_HIGHMEM);
 475 printk("%d: %d\n", __LINE__, preempt_count());
 476         if (error) {
 477                 mem_cgroup_uncharge_cache_page(page);
 478                 return error;
 479         }
 480 
 481         page_cache_get(page);
 482         page->mapping = mapping;
 483         page->index = offset;
 484 
 485 printk("%d: %d\n", __LINE__, preempt_count());
 486         spin_lock_irq(&mapping->tree_lock);
 487 printk("%d: %d\n", __LINE__, preempt_count());
 488         error = radix_tree_insert(&mapping->page_tree, offset,
page);
 489 printk("%d: %d\n", __LINE__, preempt_count());
 490         radix_tree_preload_end();
 491 printk("%d: %d\n", __LINE__, preempt_count());
 492         if (unlikely(error))
 493                 goto err_insert;
 494 printk("%d: %d\n", __LINE__, preempt_count());
 495         mapping->nrpages++;
 496 printk("%d: %d\n", __LINE__, preempt_count());
 497         __inc_zone_page_state(page, NR_FILE_PAGES);
 498 printk("%d: %d\n", __LINE__, preempt_count());
 499         spin_unlock_irq(&mapping->tree_lock);
 500 printk("%d: %d\n", __LINE__, preempt_count());
 501         trace_mm_filemap_add_to_page_cache(page);
 502 printk("%d: %d\n", __LINE__, preempt_count());
 503         return 0;
 504 err_insert:
 505         page->mapping = NULL;
 506         /* Leave page->index set: truncation relies upon it */
 507         spin_unlock_irq(&mapping->tree_lock);
 508         mem_cgroup_uncharge_cache_page(page);
 509         page_cache_release(page);
 510 printk("%d: %d\n", __LINE__, preempt_count());
 511         return error;
 512 }

Below is the output log:

VFS: Mounted root (jffs2 filesystem) on device 31:1.
devtmpfs: mounted
Freeing unused kernel memory: 92K (003a8000 - 003bf000)
467: 0
470: 0
475: 1
485: 1
487: 2
489: 2
491: 1
494: 1
496: 1
498: 1
500: 0
502: 0
467: 0
470: 0
475: 1
485: 1
487: 2
489: 2
491: 1
494: 1
496: 1
498: 1
500: 0
502: 0
467: 0
470: 0
475: 1
485: 1
487: 2
489: 2
491: 1
494: 1
496: 1
498: 1
500: 1
502: 1
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616
in_atomic(): 1, irqs_disabled(): 128, pid: 1, name: swapper
1 lock held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
CPU: 0 PID: 1 Comm: swapper Not tainted 3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:00000000 r5:0147abb8 r4:01c34000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<0002e3b8>] (__might_sleep+0xfc/0x11c)
[<0002e2bc>] (__might_sleep+0x0/0x11c) from [<002cdfe8>] (mutex_lock_nested+0x2c/0x30c)
 r4:0147abb8
[<002cdfbc>] (mutex_lock_nested+0x0/0x30c) from [<000c4de8>] (jffs2_readpage+0x50/0x78)
 r8:00100100 r7:00000002 r6:0081a640 r5:0147abb8 r4:0081a640
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000004 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005df48>] (page_cache_sync_readahead+0x60/0x68)
[<0005dee8>] (page_cache_sync_readahead+0x0/0x68) from [<000562b4>] (generic_file_aio_read+0x314/0x7b0)
 r5:00000000 r4:00000001
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<0006f02c>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006ef80>] (vfs_read+0x0/0xf4) from [<00073a18>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<000739f4>] (kernel_read+0x0/0x2c) from [<00073b44>] (prepare_binprm+0x124/0x134)
[<00073a20>] (prepare_binprm+0x0/0x134) from [<00074210>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: swapper/1/0x00000003
4 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
 #3:  (lock){......}, at: [<0015d8e8>] spi_write_then_read+0x38/0x158
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Not tainted 3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c358e4 r5:01c358e0 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015d9b0>] (spi_write_then_read+0x100/0x158)
[<0015d8b0>] (spi_write_then_read+0x0/0x158) from [<0015be60>] (read_sr+0x34/0x5c)
[<0015be2c>] (read_sr+0x0/0x5c) from [<0015c500>] (wait_till_ready+0x24/0x70)
 r5:ffffaf08 r4:003ccbd8
[<0015c4dc>] (wait_till_ready+0x0/0x70) from [<0015cf38>] (m25p80_read+0xbc/0x134)
 r6:01ce7814 r5:01c35ab8 r4:01ce7860 r3:80000001
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35c04 r6:01e28400 r4:001fe33c
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:019b2000 r8:01e59c10 r7:00000044 r6:01c35c04 r5:00001cc4
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c61e4>] (jffs2_read_dnode+0x90/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:0081a640 r5:0147abb8 r4:0081a640
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:0081a640
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000004 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005df48>] (page_cache_sync_readahead+0x60/0x68)
[<0005dee8>] (page_cache_sync_readahead+0x0/0x68) from [<000562b4>] (generic_file_aio_read+0x314/0x7b0)
 r5:00000000 r4:00000001
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<0006f02c>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006ef80>] (vfs_read+0x0/0xf4) from [<00073a18>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<000739f4>] (kernel_read+0x0/0x2c) from [<00073b44>] (prepare_binprm+0x124/0x134)
[<00073a20>] (prepare_binprm+0x0/0x134) from [<00074210>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: spi0/30/0x00000005
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
BUG: scheduling while atomic: jffs2_gcd_mtd1/38/0x00000002
3 locks held by jffs2_gcd_mtd1/38:
 #0:  (&c->alloc_sem){......}, at: [<000cdf28>] jffs2_garbage_collect_pass+0x24/0x794
 #1:  (&f->sem#2){......}, at: [<000c9eb8>] jffs2_do_crccheck_inode+0x4c/0xa0
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 38 Comm: jffs2_gcd_mtd1 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e64000 r5:00000000 r4:01c8b480 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8b480
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002ccbc0>] (schedule_preempt_disabled+0x18/0x24)
[<002ccba8>] (schedule_preempt_disabled+0x0/0x24) from [<002ce170>] (mutex_lock_nested+0x1b4/0x30c)
[<002cdfbc>] (mutex_lock_nested+0x0/0x30c) from [<0015cf30>] (m25p80_read+0xb4/0x134)
 r8:00000007 r7:00000232 r6:01ce7814 r5:01e65ba0 r4:01ce7860
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01e65cf4 r6:01e28400 r4:00188b54
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:ffffffa1 r8:01e64000 r7:00000007 r6:01e65cf4 r5:000774ac
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c7a24>] (check_tn_node+0x218/0x444)
[<000c780c>] (check_tn_node+0x0/0x444) from [<000c93ec>] (jffs2_do_read_inode_internal+0x169c/0x1ebc)
[<000c7d50>] (jffs2_do_read_inode_internal+0x0/0x1ebc) from [<000c9ecc>] (jffs2_do_crccheck_inode+0x60/0xa0)
[<000c9e6c>] (jffs2_do_crccheck_inode+0x0/0xa0) from [<000ce09c>] (jffs2_garbage_collect_pass+0x198/0x794)
 r6:01c5c1f8 r5:01e529d8 r4:01e52800
[<000cdf04>] (jffs2_garbage_collect_pass+0x0/0x794) from [<000cfb80>] (jffs2_garbage_collect_thread+0x138/0x170)
[<000cfa48>] (jffs2_garbage_collect_thread+0x0/0x170) from [<00028648>] (kthread+0xcc/0xe0)
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e601e0
BUG: scheduling while atomic: swapper/1/0x00000006
3 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c359dc r5:01c359d8 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015cf78>] (m25p80_read+0xfc/0x134)
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35c04 r6:01e28400 r4:001fe33c
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:019b2000 r8:01e59c10 r7:00000044 r6:01c35c04 r5:00001cc4
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c61e4>] (jffs2_read_dnode+0x90/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:0081a640 r5:0147abb8 r4:0081a640
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:0081a640
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000004 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005df48>] (page_cache_sync_readahead+0x60/0x68)
[<0005dee8>] (page_cache_sync_readahead+0x0/0x68) from [<000562b4>] (generic_file_aio_read+0x314/0x7b0)
 r5:00000000 r4:00000001
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<0006f02c>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006ef80>] (vfs_read+0x0/0xf4) from [<00073a18>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<000739f4>] (kernel_read+0x0/0x2c) from [<00073b44>] (prepare_binprm+0x124/0x134)
[<00073a20>] (prepare_binprm+0x0/0x134) from [<00074210>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: spi0/30/0x00000009
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
BUG: scheduling while atomic: swapper/1/0x00000009
4 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
 #3:  (lock){......}, at: [<0015d8e8>] spi_write_then_read+0x38/0x158
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c358e4 r5:01c358e0 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015d9b0>] (spi_write_then_read+0x100/0x158)
[<0015d8b0>] (spi_write_then_read+0x0/0x158) from [<0015be60>] (read_sr+0x34/0x5c)
[<0015be2c>] (read_sr+0x0/0x5c) from [<0015c500>] (wait_till_ready+0x24/0x70)
 r5:ffffaf08 r4:003ccbd8
[<0015c4dc>] (wait_till_ready+0x0/0x70) from [<0015cf38>] (m25p80_read+0xbc/0x134)
 r6:01ce7814 r5:01c35ab8 r4:01ce7860 r3:80000007
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35c04 r6:01e28400 r4:001fe2f8
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:019b2000 r8:01e59c10 r7:000009a0 r6:01c35c04 r5:00000000
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c6444>] (jffs2_read_dnode+0x2f0/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:0081a640 r5:0147abb8 r4:0081a640
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:0081a640
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000004 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005df48>] (page_cache_sync_readahead+0x60/0x68)
[<0005dee8>] (page_cache_sync_readahead+0x0/0x68) from [<000562b4>] (generic_file_aio_read+0x314/0x7b0)
 r5:00000000 r4:00000001
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<0006f02c>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006ef80>] (vfs_read+0x0/0xf4) from [<00073a18>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<000739f4>] (kernel_read+0x0/0x2c) from [<00073b44>] (prepare_binprm+0x124/0x134)
[<00073a20>] (prepare_binprm+0x0/0x134) from [<00074210>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: spi0/30/0x0000000d
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
BUG: scheduling while atomic: swapper/1/0x0000000c
3 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c359dc r5:01c359d8 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015cf78>] (m25p80_read+0xfc/0x134)
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35c04 r6:01e28400 r4:001fe2f8
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:019b2000 r8:01e59c10 r7:000009a0 r6:01c35c04 r5:00000000
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c6444>] (jffs2_read_dnode+0x2f0/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:0081a640 r5:0147abb8 r4:0081a640
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:0081a640
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000004 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005df48>] (page_cache_sync_readahead+0x60/0x68)
[<0005dee8>] (page_cache_sync_readahead+0x0/0x68) from [<000562b4>] (generic_file_aio_read+0x314/0x7b0)
 r5:00000000 r4:00000001
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<0006f02c>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006ef80>] (vfs_read+0x0/0xf4) from [<00073a18>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<000739f4>] (kernel_read+0x0/0x2c) from [<00073b44>] (prepare_binprm+0x124/0x134)
[<00073a20>] (prepare_binprm+0x0/0x134) from [<00074210>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: jffs2_gcd_mtd1/38/0x00000003
3 locks held by jffs2_gcd_mtd1/38:
 #0:  (&c->alloc_sem){......}, at: [<000cdf28>] jffs2_garbage_collect_pass+0x24/0x794
 #1:  (&f->sem#2){......}, at: [<000c9eb8>] jffs2_do_crccheck_inode+0x4c/0xa0
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 38 Comm: jffs2_gcd_mtd1 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e64000 r5:00000000 r4:01c8b480 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8b480
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002ccbc0>] (schedule_preempt_disabled+0x18/0x24)
[<002ccba8>] (schedule_preempt_disabled+0x0/0x24) from [<002ce170>] (mutex_lock_nested+0x1b4/0x30c)
[<002cdfbc>] (mutex_lock_nested+0x0/0x30c) from [<0015cf30>] (m25p80_read+0xb4/0x134)
 r8:00000007 r7:00000232 r6:01ce7814 r5:01e65ba0 r4:01ce7860
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01e65cf4 r6:01e28400 r4:00188b54
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:ffffffa1 r8:01e64000 r7:00000007 r6:01e65cf4 r5:000774ac
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c7a24>] (check_tn_node+0x218/0x444)
[<000c780c>] (check_tn_node+0x0/0x444) from [<000c93ec>] (jffs2_do_read_inode_internal+0x169c/0x1ebc)
[<000c7d50>] (jffs2_do_read_inode_internal+0x0/0x1ebc) from [<000c9ecc>] (jffs2_do_crccheck_inode+0x60/0xa0)
[<000c9e6c>] (jffs2_do_crccheck_inode+0x0/0xa0) from [<000ce09c>] (jffs2_garbage_collect_pass+0x198/0x794)
 r6:01c5c1f8 r5:01e529d8 r4:01e52800
[<000cdf04>] (jffs2_garbage_collect_pass+0x0/0x794) from [<000cfb80>] (jffs2_garbage_collect_thread+0x138/0x170)
[<000cfa48>] (jffs2_garbage_collect_thread+0x0/0x170) from [<00028648>] (kthread+0xcc/0xe0)
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e601e0
BUG: scheduling while atomic: spi0/30/0x00000011
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
467: 13
470: 13
475: 14
485: 14
487: 15
489: 15
491: 14
494: 14
496: 14
498: 14
500: 14
502: 14
BUG: scheduling while atomic: swapper/1/0x00000010
4 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
 #3:  (lock){......}, at: [<0015d8e8>] spi_write_then_read+0x38/0x158
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c358e4 r5:01c358e0 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015d9b0>] (spi_write_then_read+0x100/0x158)
[<0015d8b0>] (spi_write_then_read+0x0/0x158) from [<0015be60>] (read_sr+0x34/0x5c)
[<0015be2c>] (read_sr+0x0/0x5c) from [<0015c500>] (wait_till_ready+0x24/0x70)
 r5:ffffaf08 r4:003ccbd8
[<0015c4dc>] (wait_till_ready+0x0/0x70) from [<0015cf38>] (m25p80_read+0xbc/0x134)
 r6:01ce7814 r5:01c35ab8 r4:01ce7860 r3:8000000e
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35c04 r6:01e28400 r4:001fd958
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:003be000 r8:01e59c00 r7:00000044 r6:01c35c04 r5:000026a8
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c61e4>] (jffs2_read_dnode+0x90/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:007ee7c0 r5:0147abb8 r4:007ee7c0
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:007ee7c0
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000004 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005df48>] (page_cache_sync_readahead+0x60/0x68)
[<0005dee8>] (page_cache_sync_readahead+0x0/0x68) from [<000562b4>] (generic_file_aio_read+0x314/0x7b0)
 r5:00000000 r4:00000001
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<0006f02c>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006ef80>] (vfs_read+0x0/0xf4) from [<00073a18>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<000739f4>] (kernel_read+0x0/0x2c) from [<00073b44>] (prepare_binprm+0x124/0x134)
[<00073a20>] (prepare_binprm+0x0/0x134) from [<00074210>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: spi0/30/0x00000015
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
BUG: scheduling while atomic: jffs2_gcd_mtd1/38/0x00000004
3 locks held by jffs2_gcd_mtd1/38:
 #0:  (&c->alloc_sem){......}, at: [<000cdf28>] jffs2_garbage_collect_pass+0x24/0x794
 #1:  (&f->sem#2){......}, at: [<000c9eb8>] jffs2_do_crccheck_inode+0x4c/0xa0
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 38 Comm: jffs2_gcd_mtd1 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e64000 r5:00000000 r4:01c8b480 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8b480
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002ccbc0>] (schedule_preempt_disabled+0x18/0x24)
[<002ccba8>] (schedule_preempt_disabled+0x0/0x24) from [<002ce170>] (mutex_lock_nested+0x1b4/0x30c)
[<002cdfbc>] (mutex_lock_nested+0x0/0x30c) from [<0015cf30>] (m25p80_read+0xb4/0x134)
 r8:00000007 r7:00000232 r6:01ce7814 r5:01e65ba0 r4:01ce7860
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01e65cf4 r6:01e28400 r4:00188b54
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:ffffffa1 r8:01e64000 r7:00000007 r6:01e65cf4 r5:000774ac
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c7a24>] (check_tn_node+0x218/0x444)
[<000c780c>] (check_tn_node+0x0/0x444) from [<000c93ec>] (jffs2_do_read_inode_internal+0x169c/0x1ebc)
[<000c7d50>] (jffs2_do_read_inode_internal+0x0/0x1ebc) from [<000c9ecc>] (jffs2_do_crccheck_inode+0x60/0xa0)
[<000c9e6c>] (jffs2_do_crccheck_inode+0x0/0xa0) from [<000ce09c>] (jffs2_garbage_collect_pass+0x198/0x794)
 r6:01c5c1f8 r5:01e529d8 r4:01e52800
[<000cdf04>] (jffs2_garbage_collect_pass+0x0/0x794) from [<000cfb80>] (jffs2_garbage_collect_thread+0x138/0x170)
[<000cfa48>] (jffs2_garbage_collect_thread+0x0/0x170) from [<00028648>] (kthread+0xcc/0xe0)
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e601e0
BUG: scheduling while atomic: swapper/1/0x00000013
3 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c359dc r5:01c359d8 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015cf78>] (m25p80_read+0xfc/0x134)
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35c04 r6:01e28400 r4:001fd958
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:003be000 r8:01e59c00 r7:00000044 r6:01c35c04 r5:000026a8
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c61e4>] (jffs2_read_dnode+0x90/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:007ee7c0 r5:0147abb8 r4:007ee7c0
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:007ee7c0
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000004 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005df48>] (page_cache_sync_readahead+0x60/0x68)
[<0005dee8>] (page_cache_sync_readahead+0x0/0x68) from [<000562b4>] (generic_file_aio_read+0x314/0x7b0)
 r5:00000000 r4:00000001
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<0006f02c>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006ef80>] (vfs_read+0x0/0xf4) from [<00073a18>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<000739f4>] (kernel_read+0x0/0x2c) from [<00073b44>] (prepare_binprm+0x124/0x134)
[<00073a20>] (prepare_binprm+0x0/0x134) from [<00074210>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: spi0/30/0x00000019
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
BUG: scheduling while atomic: swapper/1/0x00000016
4 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
 #3:  (lock){......}, at: [<0015d8e8>] spi_write_then_read+0x38/0x158
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c358e4 r5:01c358e0 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015d9b0>] (spi_write_then_read+0x100/0x158)
[<0015d8b0>] (spi_write_then_read+0x0/0x158) from [<0015be60>] (read_sr+0x34/0x5c)
[<0015be2c>] (read_sr+0x0/0x5c) from [<0015c500>] (wait_till_ready+0x24/0x70)
 r5:ffffaf08 r4:003ccbd8
[<0015c4dc>] (wait_till_ready+0x0/0x70) from [<0015cf38>] (m25p80_read+0xbc/0x134)
 r6:01ce7814 r5:01c35ab8 r4:01ce7860 r3:80000014
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35c04 r6:01e28400 r4:001fd914
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:003be000 r8:01e59c00 r7:00000640 r6:01c35c04 r5:00000000
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c6444>] (jffs2_read_dnode+0x2f0/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:007ee7c0 r5:0147abb8 r4:007ee7c0
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:007ee7c0
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000004 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005df48>] (page_cache_sync_readahead+0x60/0x68)
[<0005dee8>] (page_cache_sync_readahead+0x0/0x68) from [<000562b4>] (generic_file_aio_read+0x314/0x7b0)
 r5:00000000 r4:00000001
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<0006f02c>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006ef80>] (vfs_read+0x0/0xf4) from [<00073a18>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<000739f4>] (kernel_read+0x0/0x2c) from [<00073b44>] (prepare_binprm+0x124/0x134)
[<00073a20>] (prepare_binprm+0x0/0x134) from [<00074210>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: spi0/30/0x0000001d
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
BUG: scheduling while atomic: swapper/1/0x00000019
3 locks held by swapper/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00200140
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c359dc r5:01c359d8 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015cf78>] (m25p80_read+0xfc/0x134)
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35c04 r6:01e28400 r4:001fd914
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:003be000 r8:01e59c00 r7:00000640 r6:01c35c04 r5:00000000
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c6444>] (jffs2_read_dnode+0x2f0/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:007ee7c0 r5:0147abb8 r4:007ee7c0
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:007ee7c0
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000004 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005df48>] (page_cache_sync_readahead+0x60/0x68)
[<0005dee8>] (page_cache_sync_readahead+0x0/0x68) from [<000562b4>] (generic_file_aio_read+0x314/0x7b0)
 r5:00000000 r4:00000001
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<0006f02c>] (vfs_read+0xac/0xf4)
 r7:00000080 r6:01e5a400 r5:01c35ef8 r4:01c0fc40
[<0006ef80>] (vfs_read+0x0/0xf4) from [<00073a18>] (kernel_read+0x24/0x2c)
 r7:000089ed r6:0147ac20 r5:01c34000 r4:01e5a400
[<000739f4>] (kernel_read+0x0/0x2c) from [<00073b44>] (prepare_binprm+0x124/0x134)
[<00073a20>] (prepare_binprm+0x0/0x134) from [<00074210>] (do_execve+0x250/0x528)
 r7:003599eb r6:01c34000 r5:00000000 r4:01e5a400
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: jffs2_gcd_mtd1/38/0x00000005
3 locks held by jffs2_gcd_mtd1/38:
 #0:  (&c->alloc_sem){......}, at: [<000cdf28>] jffs2_garbage_collect_pass+0x24/0x794
 #1:  (&f->sem#2){......}, at: [<000c9eb8>] jffs2_do_crccheck_inode+0x4c/0xa0
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 38 Comm: jffs2_gcd_mtd1 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e64000 r5:00000000 r4:01c8b480 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8b480
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002ccbc0>] (schedule_preempt_disabled+0x18/0x24)
[<002ccba8>] (schedule_preempt_disabled+0x0/0x24) from [<002ce170>] (mutex_lock_nested+0x1b4/0x30c)
[<002cdfbc>] (mutex_lock_nested+0x0/0x30c) from [<0015cf30>] (m25p80_read+0xb4/0x134)
 r8:00000007 r7:00000232 r6:01ce7814 r5:01e65ba0 r4:01ce7860
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01e65cf4 r6:01e28400 r4:00188b54
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:ffffffa1 r8:01e64000 r7:00000007 r6:01e65cf4 r5:000774ac
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c7a24>] (check_tn_node+0x218/0x444)
[<000c780c>] (check_tn_node+0x0/0x444) from [<000c93ec>] (jffs2_do_read_inode_internal+0x169c/0x1ebc)
[<000c7d50>] (jffs2_do_read_inode_internal+0x0/0x1ebc) from [<000c9ecc>] (jffs2_do_crccheck_inode+0x60/0xa0)
[<000c9e6c>] (jffs2_do_crccheck_inode+0x0/0xa0) from [<000ce09c>] (jffs2_garbage_collect_pass+0x198/0x794)
 r6:01c5c1f8 r5:01e529d8 r4:01e52800
[<000cdf04>] (jffs2_garbage_collect_pass+0x0/0x794) from [<000cfb80>] (jffs2_garbage_collect_thread+0x138/0x170)
[<000cfa48>] (jffs2_garbage_collect_thread+0x0/0x170) from [<00028648>] (kthread+0xcc/0xe0)
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e601e0
BUG: scheduling while atomic: spi0/30/0x00000021
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
467: 27
470: 27
475: 28
485: 28
487: 29
489: 29
491: 28
494: 28
496: 28
498: 28
500: 28
502: 28
BUG: scheduling while atomic: init/1/0x0000001e
4 locks held by init/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
 #3:  (lock){......}, at: [<0015d8e8>] spi_write_then_read+0x38/0x158
Modules linked in:
CPU: 0 PID: 1 Comm: init Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00000100
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c3584c r5:01c35848 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015d9b0>] (spi_write_then_read+0x100/0x158)
[<0015d8b0>] (spi_write_then_read+0x0/0x158) from [<0015be60>] (read_sr+0x34/0x5c)
[<0015be2c>] (read_sr+0x0/0x5c) from [<0015c500>] (wait_till_ready+0x24/0x70)
 r5:ffffaf08 r4:003ccbd8
[<0015c4dc>] (wait_till_ready+0x0/0x70) from [<0015cf38>] (m25p80_read+0xbc/0x134)
 r6:01ce7814 r5:01c35a20 r4:01ce7860 r3:8000001c
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35b6c r6:01e28400 r4:001fd2d4
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:019b6000 r8:01e59bf0 r7:00000044 r6:01c35b6c r5:00002d2c
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c61e4>] (jffs2_read_dnode+0x90/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:0081a6c0 r5:0147abb8 r4:0081a6c0
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:0081a6c0
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000008 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005dee0>] (page_cache_async_readahead+0xa0/0xa8)
[<0005de40>] (page_cache_async_readahead+0x0/0xa8) from [<000562f8>] (generic_file_aio_read+0x358/0x7b0)
 r6:0147ad2c r5:00000001 r4:007e7020
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<000739d8>] (read_code+0x34/0x50)
 r7:000bb000 r6:00390900 r5:01f00000 r4:00093900
[<000739a4>] (read_code+0x0/0x50) from [<000a9810>] (load_flat_binary+0x40c/0xa3c)
 r6:00390900 r5:01f00000 r4:01e5a400
[<000a9404>] (load_flat_binary+0x0/0xa3c) from [<000731e4>] (search_binary_handler+0x7c/0x17c)
[<00073168>] (search_binary_handler+0x0/0x17c) from [<000742f4>] (do_execve+0x334/0x528)
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: jffs2_gcd_mtd1/38/0x00000006
3 locks held by jffs2_gcd_mtd1/38:
 #0:  (&c->alloc_sem){......}, at: [<000cdf28>] jffs2_garbage_collect_pass+0x24/0x794
 #1:  (&f->sem#2){......}, at: [<000c9eb8>] jffs2_do_crccheck_inode+0x4c/0xa0
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 38 Comm: jffs2_gcd_mtd1 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e64000 r5:00000000 r4:01c8b480 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8b480
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002ccbc0>] (schedule_preempt_disabled+0x18/0x24)
[<002ccba8>] (schedule_preempt_disabled+0x0/0x24) from [<002ce170>] (mutex_lock_nested+0x1b4/0x30c)
[<002cdfbc>] (mutex_lock_nested+0x0/0x30c) from [<0015cf30>] (m25p80_read+0xb4/0x134)
 r8:00000007 r7:00000232 r6:01ce7814 r5:01e65ba0 r4:01ce7860
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01e65cf4 r6:01e28400 r4:00188b54
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:ffffffa1 r8:01e64000 r7:00000007 r6:01e65cf4 r5:000774ac
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c7a24>] (check_tn_node+0x218/0x444)
[<000c780c>] (check_tn_node+0x0/0x444) from [<000c93ec>] (jffs2_do_read_inode_internal+0x169c/0x1ebc)
[<000c7d50>] (jffs2_do_read_inode_internal+0x0/0x1ebc) from [<000c9ecc>] (jffs2_do_crccheck_inode+0x60/0xa0)
[<000c9e6c>] (jffs2_do_crccheck_inode+0x0/0xa0) from [<000ce09c>] (jffs2_garbage_collect_pass+0x198/0x794)
 r6:01c5c1f8 r5:01e529d8 r4:01e52800
[<000cdf04>] (jffs2_garbage_collect_pass+0x0/0x794) from [<000cfb80>] (jffs2_garbage_collect_thread+0x138/0x170)
[<000cfa48>] (jffs2_garbage_collect_thread+0x0/0x170) from [<00028648>] (kthread+0xcc/0xe0)
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e601e0
BUG: scheduling while atomic: spi0/30/0x00000025
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
BUG: scheduling while atomic: init/1/0x00000021
3 locks held by init/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 1 Comm: init Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00000100
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c35944 r5:01c35940 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015cf78>] (m25p80_read+0xfc/0x134)
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35b6c r6:01e28400 r4:001fd2d4
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:019b6000 r8:01e59bf0 r7:00000044 r6:01c35b6c r5:00002d2c
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c61e4>] (jffs2_read_dnode+0x90/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:0081a6c0 r5:0147abb8 r4:0081a6c0
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:0081a6c0
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000008 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005dee0>] (page_cache_async_readahead+0xa0/0xa8)
[<0005de40>] (page_cache_async_readahead+0x0/0xa8) from [<000562f8>] (generic_file_aio_read+0x358/0x7b0)
 r6:0147ad2c r5:00000001 r4:007e7020
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<000739d8>] (read_code+0x34/0x50)
 r7:000bb000 r6:00390900 r5:01f00000 r4:00093900
[<000739a4>] (read_code+0x0/0x50) from [<000a9810>] (load_flat_binary+0x40c/0xa3c)
 r6:00390900 r5:01f00000 r4:01e5a400
[<000a9404>] (load_flat_binary+0x0/0xa3c) from [<000731e4>] (search_binary_handler+0x7c/0x17c)
[<00073168>] (search_binary_handler+0x0/0x17c) from [<000742f4>] (do_execve+0x334/0x528)
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: spi0/30/0x00000029
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
BUG: scheduling while atomic: init/1/0x00000024
4 locks held by init/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
 #3:  (lock){......}, at: [<0015d8e8>] spi_write_then_read+0x38/0x158
Modules linked in:
CPU: 0 PID: 1 Comm: init Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00000100
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c3584c r5:01c35848 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015d9b0>] (spi_write_then_read+0x100/0x158)
[<0015d8b0>] (spi_write_then_read+0x0/0x158) from [<0015be60>] (read_sr+0x34/0x5c)
[<0015be2c>] (read_sr+0x0/0x5c) from [<0015c500>] (wait_till_ready+0x24/0x70)
 r5:ffffaf08 r4:003ccbd8
[<0015c4dc>] (wait_till_ready+0x0/0x70) from [<0015cf38>] (m25p80_read+0xbc/0x134)
 r6:01ce7814 r5:01c35a20 r4:01ce7860 r3:80000022
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35b6c r6:01e28400 r4:001fd290
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:019b6000 r8:01e59bf0 r7:0000072f r6:01c35b6c r5:00000000
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c6444>] (jffs2_read_dnode+0x2f0/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:0081a6c0 r5:0147abb8 r4:0081a6c0
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:0081a6c0
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000008 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005dee0>] (page_cache_async_readahead+0xa0/0xa8)
[<0005de40>] (page_cache_async_readahead+0x0/0xa8) from [<000562f8>] (generic_file_aio_read+0x358/0x7b0)
 r6:0147ad2c r5:00000001 r4:007e7020
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<000739d8>] (read_code+0x34/0x50)
 r7:000bb000 r6:00390900 r5:01f00000 r4:00093900
[<000739a4>] (read_code+0x0/0x50) from [<000a9810>] (load_flat_binary+0x40c/0xa3c)
 r6:00390900 r5:01f00000 r4:01e5a400
[<000a9404>] (load_flat_binary+0x0/0xa3c) from [<000731e4>] (search_binary_handler+0x7c/0x17c)
[<00073168>] (search_binary_handler+0x0/0x17c) from [<000742f4>] (do_execve+0x334/0x528)
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: spi0/30/0x0000002d
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
BUG: scheduling while atomic: init/1/0x00000027
3 locks held by init/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 1 Comm: init Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00000100
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002cbf88>] (schedule_timeout+0x20/0x160)
[<002cbf68>] (schedule_timeout+0x0/0x160) from [<002cd130>] (wait_for_common+0xe0/0x178)
 r8:01c34000 r7:00000002 r6:01c35944 r5:01c35940 r4:7fffffff
[<002cd050>] (wait_for_common+0x0/0x178) from [<002cd1e0>] (wait_for_completion+0x18/0x1c)
[<002cd1c8>] (wait_for_completion+0x0/0x1c) from [<0015d85c>] (__spi_sync+0xbc/0xe0)
[<0015d7a0>] (__spi_sync+0x0/0xe0) from [<0015d8ac>] (spi_sync+0x14/0x18)
[<0015d898>] (spi_sync+0x0/0x18) from [<0015cf78>] (m25p80_read+0xfc/0x134)
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01c35b6c r6:01e28400 r4:001fd290
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:019b6000 r8:01e59bf0 r7:0000072f r6:01c35b6c r5:00000000
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c6444>] (jffs2_read_dnode+0x2f0/0x4ec)
[<000c6154>] (jffs2_read_dnode+0x0/0x4ec) from [<000c6764>] (jffs2_read_inode_range+0x124/0x1b4)
[<000c6640>] (jffs2_read_inode_range+0x0/0x1b4) from [<000c49dc>] (jffs2_do_readpage_nolock+0x70/0x100)
[<000c496c>] (jffs2_do_readpage_nolock+0x0/0x100) from [<000c4d84>] (jffs2_do_readpage_unlock+0x14/0x28)
 r6:0081a6c0 r5:0147abb8 r4:0081a6c0
[<000c4d70>] (jffs2_do_readpage_unlock+0x0/0x28) from [<000c4df8>] (jffs2_readpage+0x60/0x78)
 r5:0147abb8 r4:0081a6c0
[<000c4d98>] (jffs2_readpage+0x0/0x78) from [<0005d874>] (__do_page_cache_readahead+0x1f8/0x25c)
 r5:00000008 r4:0147ad2c
[<0005d67c>] (__do_page_cache_readahead+0x0/0x25c) from [<0005db50>] (ra_submit+0x2c/0x34)
[<0005db24>] (ra_submit+0x0/0x34) from [<0005de1c>] (ondemand_readahead+0x2c4/0x2e8)
[<0005db58>] (ondemand_readahead+0x0/0x2e8) from [<0005dee0>] (page_cache_async_readahead+0xa0/0xa8)
[<0005de40>] (page_cache_async_readahead+0x0/0xa8) from [<000562f8>] (generic_file_aio_read+0x358/0x7b0)
 r6:0147ad2c r5:00000001 r4:007e7020
[<00055fa0>] (generic_file_aio_read+0x0/0x7b0) from [<0006e738>] (do_sync_read+0x88/0xd0)
[<0006e6b0>] (do_sync_read+0x0/0xd0) from [<000739d8>] (read_code+0x34/0x50)
 r7:000bb000 r6:00390900 r5:01f00000 r4:00093900
[<000739a4>] (read_code+0x0/0x50) from [<000a9810>] (load_flat_binary+0x40c/0xa3c)
 r6:00390900 r5:01f00000 r4:01e5a400
[<000a9404>] (load_flat_binary+0x0/0xa3c) from [<000731e4>] (search_binary_handler+0x7c/0x17c)
[<00073168>] (search_binary_handler+0x0/0x17c) from [<000742f4>] (do_execve+0x334/0x528)
[<00073fc0>] (do_execve+0x0/0x528) from [<000083e4>] (try_to_run_init_process+0x20/0x4c)
[<000083c4>] (try_to_run_init_process+0x0/0x4c) from [<002c7430>] (kernel_init+0x98/0x104)
 r5:002c7398 r4:003e8300
[<002c7398>] (kernel_init+0x0/0x104) from [<00009070>] (ret_from_fork+0x14/0x24)
 r4:00000000 r3:ffffffff
BUG: scheduling while atomic: jffs2_gcd_mtd1/38/0x00000007
3 locks held by jffs2_gcd_mtd1/38:
 #0:  (&c->alloc_sem){......}, at: [<000cdf28>] jffs2_garbage_collect_pass+0x24/0x794
 #1:  (&f->sem#2){......}, at: [<000c9eb8>] jffs2_do_crccheck_inode+0x4c/0xa0
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
Modules linked in:
CPU: 0 PID: 38 Comm: jffs2_gcd_mtd1 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e64000 r5:00000000 r4:01c8b480 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8b480
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<002ccbc0>] (schedule_preempt_disabled+0x18/0x24)
[<002ccba8>] (schedule_preempt_disabled+0x0/0x24) from [<002ce170>] (mutex_lock_nested+0x1b4/0x30c)
[<002cdfbc>] (mutex_lock_nested+0x0/0x30c) from [<0015cf30>] (m25p80_read+0xb4/0x134)
 r8:00000007 r7:00000232 r6:01ce7814 r5:01e65ba0 r4:01ce7860
[<0015ce7c>] (m25p80_read+0x0/0x134) from [<0015742c>] (part_read+0x64/0xac)
[<001573c8>] (part_read+0x0/0xac) from [<001545f0>] (mtd_read+0x90/0xc8)
 r7:01e65cf4 r6:01e28400 r4:00188b54
[<00154560>] (mtd_read+0x0/0xc8) from [<000d4448>] (jffs2_flash_read+0x48/0x220)
 r9:ffffffa1 r8:01e64000 r7:00000007 r6:01e65cf4 r5:000774ac
r4:01e52800
[<000d4400>] (jffs2_flash_read+0x0/0x220) from [<000c7a24>] (check_tn_node+0x218/0x444)
[<000c780c>] (check_tn_node+0x0/0x444) from [<000c93ec>] (jffs2_do_read_inode_internal+0x169c/0x1ebc)
[<000c7d50>] (jffs2_do_read_inode_internal+0x0/0x1ebc) from [<000c9ecc>] (jffs2_do_crccheck_inode+0x60/0xa0)
[<000c9e6c>] (jffs2_do_crccheck_inode+0x0/0xa0) from [<000ce09c>] (jffs2_garbage_collect_pass+0x198/0x794)
 r6:01c5c1f8 r5:01e529d8 r4:01e52800
[<000cdf04>] (jffs2_garbage_collect_pass+0x0/0x794) from [<000cfb80>] (jffs2_garbage_collect_thread+0x138/0x170)
[<000cfa48>] (jffs2_garbage_collect_thread+0x0/0x170) from [<00028648>] (kthread+0xcc/0xe0)
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e601e0
BUG: scheduling while atomic: spi0/30/0x00000031
no locks held by spi0/30.
Modules linked in:
CPU: 0 PID: 30 Comm: spi0 Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01e24000 r5:00000000 r4:01c8a580 r3:00208040
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c8a580
[<002cc52c>] (__schedule+0x0/0x398) from [<002cca30>] (schedule+0x88/0x8c)
[<002cc9a8>] (schedule+0x0/0x8c) from [<00028480>] (kthread_worker_fn+0xd8/0xe4)
[<000283a8>] (kthread_worker_fn+0x0/0xe4) from [<00028648>] (kthread+0xcc/0xe0)
 r8:00000000 r7:000283a8 r6:01ce75dc r5:00000000 r4:01e1cd60
r3:01e24000
[<0002857c>] (kthread+0x0/0xe0) from [<00009070>] (ret_from_fork+0x14/0x24)
 r7:00000000 r6:00000000 r5:0002857c r4:01e1cd60
467: 40
470: 40
475: 41
485: 41
487: 42
489: 42
491: 41
494: 41
496: 41
498: 41
500: 41
502: 41
BUG: scheduling while atomic: init/1/0x0000002b
4 locks held by init/1:
 #0:  (&sig->cred_guard_mutex){......}, at: [<00073ef8>] prepare_bprm_creds+0x30/0x6c
 #1:  (&f->sem){......}, at: [<000c4de8>] jffs2_readpage+0x50/0x78
 #2:  (&flash->lock){......}, at: [<0015cf30>] m25p80_read+0xb4/0x134
 #3:  (lock){......}, at: [<0015d8e8>] spi_write_then_read+0x38/0x158
Modules linked in:
CPU: 0 PID: 1 Comm: init Tainted: G        W    3.13.0-rc2-00203-g34074bc-dirty #2023
Backtrace: 
[<0000b204>] (dump_backtrace+0x0/0x108) from [<0000b398>] (show_stack+0x18/0x1c)
 r6:01c34000 r5:00000000 r4:01c30000 r3:00000100
[<0000b380>] (show_stack+0x0/0x1c) from [<002ca888>] (dump_stack+0x20/0x28)
[<002ca868>] (dump_stack+0x0/0x28) from [<002c92bc>] (__schedule_bug+0x58/0x70)
[<002c9264>] (__schedule_bug+0x0/0x70) from [<002cc584>] (__schedule+0x58/0x398)
 r5:003cdef0 r4:01c30000
[<

Re: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616

[Andrew Morton]

On Wed, 04 Dec 2013 16:59:38 +0800 Axel Lin <axel.lin@ingics.com> wrote:

> > 
> > Please add a lot more printk's so we can narrow it down further?  I'd
> > use something like 
> > 
> > 	printk(%d: %d\n", __LINE__, preempt_count());
> > 
> > (note: preempt_count(), not in_atomic())
> > 
> > Paste that all over the place so we can see which statement is doing
> > the wrong thing.  
> 
> Below is the code ( to show the line number ):
> 
> 459 int add_to_page_cache_locked(struct page *page, struct address_space
> *mapping,
>  460                 pgoff_t offset, gfp_t gfp_mask)
>  461 {
>  462         int error;
>  463 
>  464         VM_BUG_ON(!PageLocked(page));
>  465         VM_BUG_ON(PageSwapBacked(page));
>  466 
>  467         printk("%d: %d\n", __LINE__, preempt_count());
>  468         error = mem_cgroup_cache_charge(page, current->mm,
>  469                                         gfp_mask &
> GFP_RECLAIM_MASK);
>  470 printk("%d: %d\n", __LINE__, preempt_count());
>  471         if (error)
>  472                 return error;
>  473 
>  474         error = radix_tree_maybe_preload(gfp_mask &
> ~__GFP_HIGHMEM);
>  475 printk("%d: %d\n", __LINE__, preempt_count());
>  476         if (error) {
>  477                 mem_cgroup_uncharge_cache_page(page);
>  478                 return error;
>  479         }
>  480 
>  481         page_cache_get(page);
>  482         page->mapping = mapping;
>  483         page->index = offset;
>  484 
>  485 printk("%d: %d\n", __LINE__, preempt_count());
>  486         spin_lock_irq(&mapping->tree_lock);
>  487 printk("%d: %d\n", __LINE__, preempt_count());
>  488         error = radix_tree_insert(&mapping->page_tree, offset,
> page);
>  489 printk("%d: %d\n", __LINE__, preempt_count());
>  490         radix_tree_preload_end();
>  491 printk("%d: %d\n", __LINE__, preempt_count());
>  492         if (unlikely(error))
>  493                 goto err_insert;
>  494 printk("%d: %d\n", __LINE__, preempt_count());
>  495         mapping->nrpages++;
>  496 printk("%d: %d\n", __LINE__, preempt_count());
>  497         __inc_zone_page_state(page, NR_FILE_PAGES);
>  498 printk("%d: %d\n", __LINE__, preempt_count());
>  499         spin_unlock_irq(&mapping->tree_lock);
>  500 printk("%d: %d\n", __LINE__, preempt_count());
>  501         trace_mm_filemap_add_to_page_cache(page);
>  502 printk("%d: %d\n", __LINE__, preempt_count());
>  503         return 0;
>  504 err_insert:
>  505         page->mapping = NULL;
>  506         /* Leave page->index set: truncation relies upon it */
>  507         spin_unlock_irq(&mapping->tree_lock);
>  508         mem_cgroup_uncharge_cache_page(page);
>  509         page_cache_release(page);
>  510 printk("%d: %d\n", __LINE__, preempt_count());
>  511         return error;
>  512 }
> 
> Below is the output log:
> 
> VFS: Mounted root (jffs2 filesystem) on device 31:1.
> devtmpfs: mounted
> Freeing unused kernel memory: 92K (003a8000 - 003bf000)
> 467: 0
> 470: 0
> 475: 1
> 485: 1
> 487: 2
> 489: 2
> 491: 1
> 494: 1
> 496: 1
> 498: 1
> 500: 0
> 502: 0
> 467: 0
> 470: 0
> 475: 1
> 485: 1
> 487: 2
> 489: 2
> 491: 1
> 494: 1
> 496: 1
> 498: 1
> 500: 0
> 502: 0
> 467: 0
> 470: 0
> 475: 1
> 485: 1
> 487: 2
> 489: 2
> 491: 1
> 494: 1
> 496: 1
> 498: 1
> 500: 1

blam.  spin_unlock_irq(&mapping->tree_lock) failed to decrement
preempt_count().  What the heck.

What architecture is this?  Please send the full .config.

And exactly which kernel version is in use?

Thanks.

> 502: 1
> BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616
> in_atomic(): 1, irqs_disabled(): 128, pid: 1, name: swapper
> 1 lock held by swapper/1:

Re: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616

[Axel Lin]

於 三，2013-12-04 於 13:32 -0800，Andrew Morton 提到：
> On Wed, 04 Dec 2013 16:59:38 +0800 Axel Lin <axel.lin@ingics.com> wrote:
> 
> > > 
> > > Please add a lot more printk's so we can narrow it down further?  I'd
> > > use something like 
> > > 
> > > 	printk(%d: %d\n", __LINE__, preempt_count());
> > > 
> > > (note: preempt_count(), not in_atomic())
> > > 
> > > Paste that all over the place so we can see which statement is doing
> > > the wrong thing.  
> > 
> > Below is the code ( to show the line number ):
> > 
> > 459 int add_to_page_cache_locked(struct page *page, struct address_space
> > *mapping,
> >  460                 pgoff_t offset, gfp_t gfp_mask)
> >  461 {
> >  462         int error;
> >  463 
> >  464         VM_BUG_ON(!PageLocked(page));
> >  465         VM_BUG_ON(PageSwapBacked(page));
> >  466 
> >  467         printk("%d: %d\n", __LINE__, preempt_count());
> >  468         error = mem_cgroup_cache_charge(page, current->mm,
> >  469                                         gfp_mask &
> > GFP_RECLAIM_MASK);
> >  470 printk("%d: %d\n", __LINE__, preempt_count());
> >  471         if (error)
> >  472                 return error;
> >  473 
> >  474         error = radix_tree_maybe_preload(gfp_mask &
> > ~__GFP_HIGHMEM);
> >  475 printk("%d: %d\n", __LINE__, preempt_count());
> >  476         if (error) {
> >  477                 mem_cgroup_uncharge_cache_page(page);
> >  478                 return error;
> >  479         }
> >  480 
> >  481         page_cache_get(page);
> >  482         page->mapping = mapping;
> >  483         page->index = offset;
> >  484 
> >  485 printk("%d: %d\n", __LINE__, preempt_count());
> >  486         spin_lock_irq(&mapping->tree_lock);
> >  487 printk("%d: %d\n", __LINE__, preempt_count());
> >  488         error = radix_tree_insert(&mapping->page_tree, offset,
> > page);
> >  489 printk("%d: %d\n", __LINE__, preempt_count());
> >  490         radix_tree_preload_end();
> >  491 printk("%d: %d\n", __LINE__, preempt_count());
> >  492         if (unlikely(error))
> >  493                 goto err_insert;
> >  494 printk("%d: %d\n", __LINE__, preempt_count());
> >  495         mapping->nrpages++;
> >  496 printk("%d: %d\n", __LINE__, preempt_count());
> >  497         __inc_zone_page_state(page, NR_FILE_PAGES);
> >  498 printk("%d: %d\n", __LINE__, preempt_count());
> >  499         spin_unlock_irq(&mapping->tree_lock);
> >  500 printk("%d: %d\n", __LINE__, preempt_count());
> >  501         trace_mm_filemap_add_to_page_cache(page);
> >  502 printk("%d: %d\n", __LINE__, preempt_count());
> >  503         return 0;
> >  504 err_insert:
> >  505         page->mapping = NULL;
> >  506         /* Leave page->index set: truncation relies upon it */
> >  507         spin_unlock_irq(&mapping->tree_lock);
> >  508         mem_cgroup_uncharge_cache_page(page);
> >  509         page_cache_release(page);
> >  510 printk("%d: %d\n", __LINE__, preempt_count());
> >  511         return error;
> >  512 }
> > 
> > Below is the output log:
> > 
> > VFS: Mounted root (jffs2 filesystem) on device 31:1.
> > devtmpfs: mounted
> > Freeing unused kernel memory: 92K (003a8000 - 003bf000)
> > 467: 0
> > 470: 0
> > 475: 1
> > 485: 1
> > 487: 2
> > 489: 2
> > 491: 1
> > 494: 1
> > 496: 1
> > 498: 1
> > 500: 0
> > 502: 0
> > 467: 0
> > 470: 0
> > 475: 1
> > 485: 1
> > 487: 2
> > 489: 2
> > 491: 1
> > 494: 1
> > 496: 1
> > 498: 1
> > 500: 0
> > 502: 0
> > 467: 0
> > 470: 0
> > 475: 1
> > 485: 1
> > 487: 2
> > 489: 2
> > 491: 1
> > 494: 1
> > 496: 1
> > 498: 1
> > 500: 1
> 
> blam.  spin_unlock_irq(&mapping->tree_lock) failed to decrement
> preempt_count().  What the heck.
> 
> What architecture is this?  Please send the full .config.
> 
> And exactly which kernel version is in use?

It's a arm7tdmi SoC (GeneralPlus gpl32700 SoC).
The code is: current Linus' tree + patches for this SoC.
The patches for this SoC includes:
irqchip, clocksource, pinctrl, gpio, uart, spi, sd/mmc host drivers.
I also apply a out-of-tree sdio wifi driver for mt5931 wifi module.

I can successfully boot and running busybox if using ext2 as root.
Thus I don't hit "spin_unlock_irq decrement preempt_count failure" if using ext2 as root.
The storage is a spi nor flash, so I prefer to use jffs2 but then I got
the hangup.

BTW, I got below panic today:

467: 0
470: 0
475: 1
485: 1
487: 2
489: 2
491: 1
494: 1
496: 1
498: 1
BUG: spinlock bad magic on CPU#0, spi0/30
 lock: 0x1, .magic: 65ea0004, .owner: /0, .owner_cpu: -253386753
CPU: 0 PID: 30 Comm: spi0 Not tainted 3.13.0-rc2-00290-g4b02cef-dirty
#2035
Backtrace: Backtrace:
[<0000b264>] (dump_backtrace+0x0/0x108) from [<0000b3f8>] (show_stack
+0x18/0x1c)
 r6:01ce9648 r6:01ce9648 r5:00000001 r5:00000001 r4:43ea0004 r4:43ea0004
r3:00208040 r3:00208040

[<0000b3e0>] (show_stack+0x0/0x1c) from [<002ad4dc>] (dump_stack
+0x20/0x28)
[<002ad4bc>] (dump_stack+0x0/0x28) from [<002ac1c0>] (spin_dump
+0x80/0x94)
[<002ac140>] (spin_dump+0x0/0x94) from [<002ac200>] (spin_bug+0x2c/0x30)
 r5:0033c47a r5:0033c47a r4:00000001 r4:00000001

[<002ac1d4>] (spin_bug+0x0/0x30) from [<00037788>] (do_raw_spin_unlock
+0x24/0x9c)
 r5:01ce9648 r5:01ce9648 r4:00000001 r4:00000001

[<00037764>] (do_raw_spin_unlock+0x0/0x9c) from [<002b31f0>]
(_raw_spin_unlock_irqrestore+0x2c/0x58)
 r4:a0000053 r4:a0000053 r3:00000000 r3:00000000

[<002b31c4>] (_raw_spin_unlock_irqrestore+0x0/0x58) from [<0017ac9c>]
(spi_finalize_current_message+0x44/0xa8)
 r5:01e65b00 r5:01e65b00 r4:01ce9400 r4:01ce9400

[<0017ac58>] (spi_finalize_current_message+0x0/0xa8) from [<0017c4a4>]
(gpl327xx_spi_transfer_one+0x268/0x290)
 r7:01ce96c8 r7:01ce96c8 r6:01e65b00 r6:01e65b00 r5:01e21e00 r5:01e21e00
r4:01e65ae0 r4:01e65ae0

[<0017c23c>] (gpl327xx_spi_transfer_one+0x0/0x290) from [<0017ae68>]
(spi_pump_messages+0x168/0x190)
[<0017ad00>] (spi_pump_messages+0x0/0x190) from [<000285d8>]
(kthread_worker_fn+0xd0/0xe4)
 r7:00000001 r7:00000001 r6:01e26000 r6:01e26000 r5:01ce9610 r5:01ce9610
r4:01ce95dc r4:01ce95dc

[<00028508>] (kthread_worker_fn+0x0/0xe4) from [<000287a8>] (kthread
+0xcc/0xe0)
 r8:00000000 r8:00000000 r7:00028508 r7:00028508 r6:01ce95dc r6:01ce95dc
r5:00000000 r5:00000000 r4:01e25000 r4:01e25000
r3:01e26000

[<000286dc>] (kthread+0x0/0xe0) from [<000090d0>] (ret_from_fork
+0x14/0x24)
 r7:00000000 r7:00000000 r6:00000000 r6:00000000 r5:000286dc r5:000286dc
r4:01e25000 r4:01e25000

500: 0
502: 0
Internal error: Oops - undefined instruction: 0 [#1] PREEMPT ARM
Modules linked in:Modules linked in:

CPU: 0 PID: 30 Comm: spi0 Not tainted 3.13.0-rc2-00290-g4b02cef-dirty
#2035
task: 01c89680 ti: 01e26000 task.ti: 01e26000
PC is at 0x1e281c0
LR is at complete+0x1c/0x4c
pc : [<01e281c0>]    lr : [<0003375c>]    psr: 20000053
sp : 01e27e74  ip : 01e27e58  fp : 01c35860
r10: 00000000  r9 : 00008000  r8 : 00000000
r7 : a0000053  r6 : 01c35860  r5 : 01c35940  r4 : 01c35864
r3 : 0017aa00  r2 : 01e27e70  r1 : 00000001  r0 : 01c25860
Flags: nzCv  IRQs on  FIQs off  Mode SVC_32  ISA ARM  Segment kernel
Process spi0 (pid: 30, stack limit = 0x01e261c0)
Stack: (0x01e27e74 to 0x01e28000)
7e60:                                              00033750 01e27ea4
01e27e88
7e80: 0017acf8 0017aa10 01c35920 01e21e00 01c35940 01ce96c8 01e27edc
01e27ea8
7ea0: 0017c4a4 0017ac68 01f78a40 01ce9400 00000001 01ce9610 01ce9400
00000000
7ec0: 01ce9648 00000000 00000000 00000000 01e27efc 01e27ee0 0017ae68
0017c24c
7ee0: 01ce95dc 01ce9610 01e26000 00000001 01e27f24 01e27f00 000285d8
0017ad10
7f00: 01e26000 01e25000 00000000 01ce95dc 00028508 00000000 01e27fac
01e27f28
7f20: 000287a8 00028518 01c89680 00000000 01c30000 01ce95dc 00000000
00000001
7f40: dead4ead ffffffff ffffffff 003c892c 00000000 00000000 00339a94
01e27f5c
7f60: 01e27f5c 00000000 00000001 dead4ead ffffffff ffffffff 003c892c
00000000
7f80: 00000000 00339a94 01e27f88 01e27f88 01e25000 000286dc 00000000
00000000
7fa0: 00000000 01e27fb0 000090d0 000286ec 00000000 00000000 00000000
00000000
7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000
00000000
Backtrace: Backtrace: frame pointer underflowframe pointer underflow

[<fffffff0>] (0xfffffff0) from [<0017a6c0>] (spi_async_locked+0x10/0x4c)
Backtrace aborted due to bad frame pointer <01c35860>
Code: 00000000 00000000 00000000 00000000 (57ac6e9d)
---[ end trace 6a820b3e003c6480 ]---
Kernel panic - not syncing: Fatal exception
Internal error: Oops - undefined instruction: 0 [#2] PREEMPT ARM
Modules linked in:Modules linked in:

CPU: 0 PID: -1612341275 Comm:
â<83>â<83>â<83>â<83>â<83>â<83>â<83>â<83>â<83>â<83> Tainted: G      D
3.13.0-rc2-00290-g4b02cef-dirty #2035
Workqueue: â<83>KKâ<83>KKâ<83>KKâ<83>KKâ<83>KKâÀK 0x83e183e2Workqueue:
â<83>KKâ<83>KKâ<83>KKâ<83>KKâ<83>KKâÀK 0x83e183e2
(â<83>KKâ<83>KKâ<83>KKâ<83>KKâ<83>KKâÀK)
(â<83>KKâ<83>KKâ<83>KKâ<83>KKâ<83>KKâÀK)

task: 65645f65 ti: 00338000 task.ti: 8de58de5
PC is at 0x1e27f40
LR is at panic+0x194/0x1ec
pc : [<01e27f40>]    lr : [<002aba54>]    psr: 80000053
sp : 00338b18  ip : 01e27cdc  fp : 00000000
r10: 9fffff2d  r9 : 00000000  r8 : fffffffe
r7 : 00000000  r6 : 00000fa0  r5 : 00000fa0  r4 : 01e27d00
r3 : b803c4f9  r2 : 000000d4  r1 : ffffffff  r0 : 00000000
Flags: Nzcv  IRQs on  FIQs off  Mode SVC_32  ISA ARM  Segment kernel
Process â<83>â<83>â<83>â<83>â<83>â<83>â<83>â<83> (pid: -2048752158,
stack limit = 0x8de58fa5)
Stack: (0x00338b18 to 0x9fe5bfe5)
8b00:                                                       782a3025
30010020
8b20: 65746e49 6c616e72 72726520 203a726f 203a7325 5b207825 5d642523
45525020
8b40: 54504d45 4d524120 3001000a 636f7250 20737365 732a2e25 69702820
25203a64
8b60: 73202c64 6b636174 6d696c20 3d207469 25783020 000a2970 53003001
6b636174
....


Below is my config:
#
# Automatically generated file; DO NOT EDIT.
# Linux/arm 3.13.0-rc2 Kernel Configuration
#
CONFIG_ARM=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_VECTORS_BASE=0x00000000
CONFIG_PHYS_OFFSET=0x00000000
CONFIG_GENERIC_BUG=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_FHANDLE is not set
# CONFIG_AUDIT is not set

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_KTIME_SCALAR=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y

#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set

#
# RCU Subsystem
#
CONFIG_TREE_PREEMPT_RCU=y
CONFIG_PREEMPT_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_FANOUT=32
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_NOCB_CPU is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=12
CONFIG_GENERIC_SCHED_CLOCK=y
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_NAMESPACES is not set
# CONFIG_UIDGID_STRICT_TYPE_CHECKS is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_EXPERT=y
CONFIG_UID16=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PRINTK=y
CONFIG_BUG=y
# CONFIG_ELF_CORE is not set
CONFIG_BASE_FULL=y
# CONFIG_FUTEX is not set
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
# CONFIG_TIMERFD is not set
CONFIG_EVENTFD=y
CONFIG_AIO=y
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
CONFIG_COMPAT_BRK=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
# CONFIG_MMAP_ALLOW_UNINITIALIZED is not set
# CONFIG_PROFILING is not set
CONFIG_HAVE_OPROFILE=y
# CONFIG_KPROBES is not set
# CONFIG_JUMP_LABEL is not set
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_BLOCK=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_CMDLINE_PARSER is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_DEFAULT_NOOP=y
CONFIG_DEFAULT_IOSCHED="noop"
CONFIG_UNINLINE_SPIN_UNLOCK=y
# CONFIG_FREEZER is not set

#
# System Type
#
# CONFIG_MMU is not set
# CONFIG_ARCH_INTEGRATOR is not set
# CONFIG_ARCH_REALVIEW is not set
# CONFIG_ARCH_VERSATILE is not set
# CONFIG_ARCH_AT91 is not set
# CONFIG_ARCH_CLPS711X is not set
# CONFIG_ARCH_GEMINI is not set
CONFIG_ARCH_GPL327XX=y
# CONFIG_ARCH_EBSA110 is not set
# CONFIG_ARCH_EP93XX is not set
# CONFIG_ARCH_FOOTBRIDGE is not set
# CONFIG_ARCH_NETX is not set
# CONFIG_ARCH_DOVE is not set
# CONFIG_ARCH_KIRKWOOD is not set
# CONFIG_ARCH_MV78XX0 is not set
# CONFIG_ARCH_KS8695 is not set
# CONFIG_ARCH_W90X900 is not set
# CONFIG_ARCH_LPC32XX is not set
# CONFIG_ARCH_MSM is not set
# CONFIG_ARCH_SHMOBILE is not set
# CONFIG_ARCH_RPC is not set
# CONFIG_ARCH_SA1100 is not set
# CONFIG_ARCH_S3C24XX is not set
# CONFIG_ARCH_S3C64XX is not set
# CONFIG_ARCH_S5P64X0 is not set
# CONFIG_ARCH_S5PC100 is not set
# CONFIG_ARCH_S5PV210 is not set
# CONFIG_ARCH_EXYNOS is not set
# CONFIG_ARCH_DAVINCI is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set

#
# GPL327XX Implementations
#
CONFIG_ARCH_GPL32700=y
# CONFIG_PLAT_SPEAR is not set

#
# Processor Type
#
CONFIG_CPU_ARM7TDMI=y
# CONFIG_CPU_ARM9TDMI is not set
CONFIG_CPU_32v4T=y
CONFIG_CPU_ABRT_LV4T=y
CONFIG_CPU_PABRT_LEGACY=y
CONFIG_CPU_CACHE_V4=y

#
# Processor Features
#
# CONFIG_ARCH_PHYS_ADDR_T_64BIT is not set
CONFIG_TLS_REG_EMUL=y
CONFIG_NEED_KUSER_HELPERS=y
CONFIG_KUSER_HELPERS=y
# CONFIG_CACHE_L2X0 is not set
CONFIG_ARM_L1_CACHE_SHIFT=5
CONFIG_ARM_NR_BANKS=8
CONFIG_MULTI_IRQ_HANDLER=y
CONFIG_SET_MEM_PARAM=y
CONFIG_DRAM_BASE=0x00000000
CONFIG_DRAM_SIZE=0x02000000
CONFIG_FLASH_MEM_BASE=0x20000000
CONFIG_FLASH_SIZE=0x00400000
CONFIG_PROCESSOR_ID=0x41807700

#
# Bus support
#
# CONFIG_PCI_SYSCALL is not set
# CONFIG_PCCARD is not set

#
# Kernel Features
#
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0x00000000
CONFIG_ARCH_NR_GPIO=0
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_HZ_FIXED=0
CONFIG_HZ_100=y
# CONFIG_HZ_200 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_500 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
# CONFIG_SCHED_HRTICK is not set
CONFIG_AEABI=y
# CONFIG_OABI_COMPAT is not set
# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
CONFIG_HAVE_ARCH_PFN_VALID=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_HAVE_MEMBLOCK=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=999999
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_NOMMU_INITIAL_TRIM_EXCESS=1
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CLEANCACHE is not set
# CONFIG_ZBUD is not set
CONFIG_FORCE_MAX_ZONEORDER=11
# CONFIG_SECCOMP is not set
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y

#
# Boot options
#
CONFIG_USE_OF=y
# CONFIG_ATAGS is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
# CONFIG_ARM_APPENDED_DTB is not set
CONFIG_CMDLINE=""
# CONFIG_XIP_KERNEL is not set
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
# CONFIG_AUTO_ZRELADDR is not set

#
# CPU Power Management
#

#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set

#
# Floating point emulation
#

#
# At least one emulation must be selected
#

#
# Userspace binary formats
#
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_FLAT=y
# CONFIG_BINFMT_ZFLAT is not set
# CONFIG_BINFMT_SHARED_FLAT is not set
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y

#
# Power management options
#
# CONFIG_PM_RUNTIME is not set
# CONFIG_ARM_CPU_SUSPEND is not set
CONFIG_NET=y

#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_UNIX is not set
CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=y
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
CONFIG_INET6_XFRM_MODE_TRANSPORT=y
CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=y
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=y
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_GRE is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_NET_MPLS_GSO is not set
# CONFIG_HSR is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
# CONFIG_BPF_JIT is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_PRIV=y
CONFIG_CFG80211=y
CONFIG_NL80211_TESTMODE=y
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
# CONFIG_CFG80211_CERTIFICATION_ONUS is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
# CONFIG_CFG80211_WEXT is not set
# CONFIG_LIB80211 is not set
CONFIG_MAC80211=y
CONFIG_MAC80211_HAS_RC=y
# CONFIG_MAC80211_RC_PID is not set
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_RFKILL_REGULATOR is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
CONFIG_HAVE_BPF_JIT=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_FW_LOADER is not set
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
# CONFIG_DMA_SHARED_BUFFER is not set

#
# Bus devices
#
# CONFIG_ARM_CCI is not set
# CONFIG_CONNECTOR is not set
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_CMDLINE_PARTS is not set
# CONFIG_MTD_AFS_PARTS is not set
CONFIG_MTD_OF_PARTS=y
# CONFIG_MTD_AR7_PARTS is not set

#
# User Modules And Translation Layers
#
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set
# CONFIG_RFD_FTL is not set
# CONFIG_SSFDC is not set
# CONFIG_SM_FTL is not set
# CONFIG_MTD_OOPS is not set

#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
CONFIG_MTD_RAM=y
CONFIG_MTD_ROM=y
# CONFIG_MTD_ABSENT is not set

#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PHYSMAP is not set
# CONFIG_MTD_PHYSMAP_OF is not set
# CONFIG_MTD_UCLINUX is not set
# CONFIG_MTD_PLATRAM is not set

#
# Self-contained MTD device drivers
#
# CONFIG_MTD_DATAFLASH is not set
CONFIG_MTD_M25P80=y
# CONFIG_MTD_SST25L is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
CONFIG_MTD_BLOCK2MTD=y

#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
# CONFIG_MTD_NAND is not set
# CONFIG_MTD_ONENAND is not set

#
# LPDDR flash memory drivers
#
# CONFIG_MTD_LPDDR is not set
# CONFIG_MTD_UBI is not set
CONFIG_DTC=y
CONFIG_OF=y

#
# Device Tree and Open Firmware support
#
# CONFIG_PROC_DEVICETREE is not set
# CONFIG_OF_SELFTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_NET=y
CONFIG_OF_MTD=y
# CONFIG_PARPORT is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_MG_DISK is not set
# CONFIG_BLK_DEV_RBD is not set

#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_ATMEL_PWM is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_ATMEL_SSC is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_TI_DAC7512 is not set
# CONFIG_BMP085_SPI is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
CONFIG_MT5931_LOADER=m
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_93XX46 is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_SPI is not set

#
# Altera FPGA firmware download module
#

#
# Intel MIC Host Driver
#

#
# Intel MIC Card Driver
#

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# CONFIG_SCSI_DMA is not set
# CONFIG_SCSI_NETLINK is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set

#
# CAIF transport drivers
#

#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
# CONFIG_ETHERNET is not set
# CONFIG_PHYLIB is not set
# CONFIG_MICREL_KS8995MA is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_WLAN=y
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_ATH_CARDS is not set
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_BRCMFMAC is not set
# CONFIG_HOSTAP is not set
# CONFIG_LIBERTAS is not set
CONFIG_MTK_WLAN=y
CONFIG_MT5931=y
# CONFIG_MT5931_MT6622 is not set
# CONFIG_P54_COMMON is not set
# CONFIG_RT2X00 is not set
# CONFIG_WL_TI is not set
# CONFIG_MWIFIEX is not set
# CONFIG_CW1200 is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_SH_KEYSC is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_SERIO_APBPS2 is not set
# CONFIG_SERIO_OLPC_APSP is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set

#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_GPL327XX=y
CONFIG_SERIAL_GPL327XX_UART_CONSOLE=y
# CONFIG_SERIAL_KGDB_NMI is not set
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_SH_SCI is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_CONSOLE_POLL=y
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_IFX6X60 is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_ST_ASC is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_HVC_DCC is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_I2C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_GPIO is not set
CONFIG_SPI_GPL327XX=y
# CONFIG_SPI_FSL_SPI is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_PXA2XX_PCI is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_DESIGNWARE is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_HSI is not set

#
# PPS support
#
# CONFIG_PPS is not set

#
# PPS generators support
#

#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional
clocks.
#
CONFIG_PINCTRL=y

#
# Pin controllers
#
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_SINGLE is not set
CONFIG_PINCTRL_GPL327XX=y
CONFIG_PINCTRL_GPL32700=y
CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
CONFIG_ARCH_REQUIRE_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_OF_GPIO=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set

#
# Memory mapped GPIO drivers:
#
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_EM is not set
# CONFIG_GPIO_RCAR is not set
# CONFIG_GPIO_TS5500 is not set
# CONFIG_GPIO_GRGPIO is not set

#
# I2C GPIO expanders:
#

#
# PCI GPIO expanders:
#

#
# SPI GPIO expanders:
#
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MCP23S08 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_74X164 is not set

#
# AC97 GPIO expanders:
#

#
# LPC GPIO expanders:
#

#
# MODULbus GPIO expanders:
#
# CONFIG_GPIO_BCM_KONA is not set

#
# USB GPIO expanders:
#
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_POWER_AVS is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y

#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_MFD_ASIC3 is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_HTC_EGPIO is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_TPS65912 is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_T7L66XB is not set
# CONFIG_MFD_TC6387XB is not set
# CONFIG_MFD_TC6393XB is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_VEXPRESS_CONFIG is not set
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_GPIO is not set
# CONFIG_REGULATOR_TPS6524X is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_EXYNOS_VIDEO is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
# CONFIG_SOUND is not set

#
# HID support
#
CONFIG_HID=y
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO_TPKBD is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
CONFIG_MMC_DEBUG=y
# CONFIG_MMC_UNSAFE_RESUME is not set
# CONFIG_MMC_CLKGATE is not set

#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_MMC_BLOCK_BOUNCE=y
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_SDHCI is not set
# CONFIG_MMC_SDHCI_PXAV3 is not set
# CONFIG_MMC_SDHCI_PXAV2 is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_DW is not set
CONFIG_MMC_GPL327XX=y
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_EDAC is not set
CONFIG_RTC_LIB=y
# CONFIG_RTC_CLASS is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
# CONFIG_DW_DMAC_CORE is not set
# CONFIG_DW_DMAC is not set
# CONFIG_TIMB_DMA is not set
CONFIG_DMA_OF=y
# CONFIG_AUXDISPLAY is not set
# CONFIG_VIRT_DRIVERS is not set

#
# Virtio drivers
#
# CONFIG_VIRTIO_MMIO is not set

#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y

#
# Common Clock Framework
#
# CONFIG_COMMON_CLK_DEBUG is not set

#
# Hardware Spinlock drivers
#
CONFIG_CLKSRC_OF=y
CONFIG_CLKSRC_MMIO=y
# CONFIG_ARM_ARCH_TIMER_EVTSTREAM is not set
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set

#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_PWM is not set
CONFIG_IRQCHIP=y
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set
# CONFIG_PHY_EXYNOS_DP_VIDEO is not set
# CONFIG_POWERCAP is not set

#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_FILE_LOCKING is not set
# CONFIG_FSNOTIFY is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_FS_DEBUG=1
CONFIG_JFFS2_FS_WRITEBUFFER=y
# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
# CONFIG_JFFS2_SUMMARY is not set
# CONFIG_JFFS2_FS_XATTR is not set
CONFIG_JFFS2_COMPRESSION_OPTIONS=y
CONFIG_JFFS2_ZLIB=y
# CONFIG_JFFS2_LZO is not set
CONFIG_JFFS2_RTIME=y
# CONFIG_JFFS2_RUBIN is not set
# CONFIG_JFFS2_CMODE_NONE is not set
CONFIG_JFFS2_CMODE_PRIORITY=y
# CONFIG_JFFS2_CMODE_SIZE is not set
# CONFIG_JFFS2_CMODE_FAVOURLZO is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
# CONFIG_NLS is not set

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_INFO_REDUCED is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_READABLE_ASM=y
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_NOMMU_REGIONS is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
CONFIG_DEBUG_PREEMPT=y

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_LOCK_ALLOC=y
# CONFIG_PROVE_LOCKING is not set
CONFIG_LOCKDEP=y
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_WRITECOUNT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
# CONFIG_PROVE_RCU_DELAY is not set
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_CPU_STALL_VERBOSE=y
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set

#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_KGDB=y
CONFIG_KGDB_SERIAL_CONSOLE=y
# CONFIG_KGDB_TESTS is not set
# CONFIG_KGDB_KDB is not set
# CONFIG_ARM_UNWIND is not set
# CONFIG_DEBUG_USER is not set
# CONFIG_DEBUG_LL is not set
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
# CONFIG_DEBUG_UART_PL01X is not set
# CONFIG_DEBUG_UART_8250 is not set
CONFIG_UNCOMPRESS_INCLUDE="mach/uncompress.h"

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=y
# CONFIG_CRYPTO_GCM is not set
CONFIG_CRYPTO_SEQIV=y

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SHA1_ARM is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_ARM is not set
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=y
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
CONFIG_CRYPTO_HW=y
# CONFIG_BINARY_PRINTF is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_GENERIC_ATOMIC64=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
CONFIG_AVERAGE=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
# CONFIG_VIRTUALIZATION is not set

Re: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:616

[Andrew Morton]

On Thu, 05 Dec 2013 15:12:04 +0800 Axel Lin <axel.lin@ingics.com> wrote:

> > 
> > blam.  spin_unlock_irq(&mapping->tree_lock) failed to decrement
> > preempt_count().  What the heck.
> > 
> > What architecture is this?  Please send the full .config.
> > 
> > And exactly which kernel version is in use?
> 
> It's a arm7tdmi SoC (GeneralPlus gpl32700 SoC).
> The code is: current Linus' tree + patches for this SoC.
> The patches for this SoC includes:
> irqchip, clocksource, pinctrl, gpio, uart, spi, sd/mmc host drivers.
> I also apply a out-of-tree sdio wifi driver for mt5931 wifi module.

Beats me, sorry - I don't see anything which could cause this in the
arm spinlock implementation, even if the spinlock's storage got
corrupted.

> I can successfully boot and running busybox if using ext2 as root.
> Thus I don't hit "spin_unlock_irq decrement preempt_count failure" if using ext2 as root.
> The storage is a spi nor flash, so I prefer to use jffs2 but then I got
> the hangup.
> 
> BTW, I got below panic today:
> 
> 467: 0
> 470: 0
> 475: 1
> 485: 1
> 487: 2
> 489: 2
> 491: 1
> 494: 1
> 496: 1
> 498: 1
> BUG: spinlock bad magic on CPU#0, spi0/30

Which is what appears to have happened here.

I assume earlier kernels worked OK with this config?

If so, all I can suggest is a git bisection search :(