BUG on EN12000 w/ 2.6.28?

BUG on EN12000 w/ 2.6.28?

[Udo van den Heuvel]

Hello,

On my VIA Epia EN12000 with 2.6.28 I found:

Dec 27 04:03:20 recorder kernel: kernel BUG at fs/dcache.c:474!
Dec 27 04:03:20 recorder kernel: invalid opcode: 0000 [#1] PREEMPT
Dec 27 04:03:20 recorder kernel: last sysfs file: 
/sys/devices/platform/w83627hf.656/fan1_min
Dec 27 04:03:20 recorder kernel: Modules linked in: nfsd lockd nfs_acl 
exportfs w83627hf hwmon_vid eeprom sunrpc binfmt_misc tda1004x 
snd_via82xx snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi
_event snd_seq snd_pcm_oss snd_mixer_oss snd_pcm snd_timer 
snd_page_alloc budget_av snd_mpu401_uart saa7146_vv videobuf_dma_sg 
snd_rawmidi videobuf_core snd_seq_device budget_core saa7146 snd 
ttpci_eeprom i2c
_viapro sg ohci1394 ieee1394 fan thermal processor button ata_generic 
uhci_hcd ehci_hcd [last unloaded: scsi_wait_scan]
Dec 27 04:03:20 recorder kernel:
Dec 27 04:03:20 recorder kernel: Pid: 225, comm: kswapd0 Not tainted 
(2.6.28 #1)
Dec 27 04:03:20 recorder kernel: EIP: 0060:[<c01657ba>] EFLAGS: 00010283 
CPU: 0
Dec 27 04:03:20 recorder kernel: EIP is at __shrink_dcache_sb+0xae/0x2f1
Dec 27 04:03:20 recorder kernel: EAX: 00000000 EBX: e1b431ec ECX: 
e1b43210 EDX: f70cbee8
Dec 27 04:03:20 recorder kernel: ESI: f684f000 EDI: f684f098 EBP: 
f70cbf0c ESP: f70cbed4
Dec 27 04:03:20 recorder kernel: DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 
0068
Dec 27 04:03:20 recorder kernel: Process kswapd0 (pid: 225, ti=f70ca000 
task=f70377b0 task.ti=f70ca000)
Dec 27 04:03:20 recorder kernel: Stack:
Dec 27 04:03:20 recorder kernel: f70cbee0 00000008 00000037 f6c3b138 
f6c168f8 c98ebc5c e1b4368c f684f000
Dec 27 04:03:20 recorder kernel: 00000070 0000005a 000000d5 c0165adf 
00006a9a f684f03c 0000005a c03e6dd0
Dec 27 04:03:20 recorder kernel: 00006a40 00000083 00000000 c0144c7f 
0000000f 00000000 00037015 000000d0
Dec 27 04:03:20 recorder kernel: Call Trace:
Dec 27 04:03:20 recorder kernel: [<c0165adf>] 
shrink_dcache_memory+0xe2/0x193
Dec 27 04:03:20 recorder kernel: [<c0144c7f>] shrink_slab+0xdd/0x146
Dec 27 04:03:20 recorder kernel: [<c0144fff>] kswapd+0x317/0x408
Dec 27 04:03:20 recorder kernel: [<c014324a>] isolate_pages_global+0x0/0x1f2
Dec 27 04:03:20 recorder kernel: [<c0129406>] 
autoremove_wake_function+0x0/0x2d
Dec 27 04:03:20 recorder kernel: [<c0144ce8>] kswapd+0x0/0x408
Dec 27 04:03:20 recorder kernel: [<c01290d0>] kthread+0x36/0x5a
Dec 27 04:03:20 recorder kernel: [<c012909a>] kthread+0x0/0x5a
Dec 27 04:03:20 recorder kernel: [<c010388f>] kernel_thread_helper+0x7/0x10
Dec 27 04:03:20 recorder kernel: Code: 89 43 04 89 5c 24 0c 89 51 04 89 
0a 89 be 9c 00 00 00 89 be 98 00 00 00 e9 e3 01 00 00 8b 8e 9c 00 00 00 
8d 59 dc 39 73 4c 74 04 <0f> 0b eb fe 89 e0 25 00 e0 ff ff ff 40
  14 83 7c 24 04 00 74 43
Dec 27 04:03:20 recorder kernel: EIP: [<c01657ba>] 
__shrink_dcache_sb+0xae/0x2f1 SS:ESP 0068:f70cbed4
Dec 27 04:03:20 recorder kernel: ---[ end trace 2ffb2cae40aa10f4 ]---
Dec 27 04:03:20 recorder kernel: note: kswapd0[225] exited with 
preempt_count 1


Really a bug or something else?

Kind regards,
Udo

Re: BUG on EN12000 w/ 2.6.28?

[Udo van den Heuvel]

Udo van den Heuvel wrote:
> On my VIA Epia EN12000 with 2.6.28 I found:
> 
> Dec 27 04:03:20 recorder kernel: kernel BUG at fs/dcache.c:474!

There are about three of those.
Then I got:

Dec 27 04:03:23 recorder kernel: note: prelink[5389] exited with 
preempt_count 1
Dec 27 04:03:23 recorder kernel: BUG: scheduling while atomic: 
prelink/5389/0x10000002
Dec 27 04:03:23 recorder kernel: Modules linked in: nfsd lockd nfs_acl 
exportfs w83627hf hwmon_vid eeprom sunrpc binfmt_misc tda1004x 
snd_via82xx snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss 
snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss snd_pcm snd_timer 
snd_page_alloc budget_av snd_mpu401_uart saa7146_vv videobuf_dma_sg 
snd_rawmidi videobuf_core snd_seq_device budget_core saa7146 snd 
ttpci_eeprom i2c_viapro sg ohci1394 ieee1394 fan thermal processor 
button ata_generic uhci_hcd ehci_hcd [last unloaded: scsi_wait_scan]
Dec 27 04:03:23 recorder kernel: Pid: 5389, comm: prelink Tainted: G 
   D    2.6.28 #1
Dec 27 04:03:23 recorder kernel: Call Trace:
Dec 27 04:03:23 recorder kernel: [<c031935e>] schedule+0x69/0x2f8
Dec 27 04:03:23 recorder kernel: [<c01155a4>] __cond_resched+0x16/0x2c
Dec 27 04:03:23 recorder kernel: [<c031966d>] _cond_resched+0x24/0x2f
Dec 27 04:03:23 recorder kernel: [<c0148291>] unmap_vmas+0x37c/0x451
Dec 27 04:03:23 recorder kernel: [<c014b483>] exit_mmap+0x7b/0xf3
Dec 27 04:03:23 recorder kernel: [<c0118817>] mmput+0x1b/0x80
Dec 27 04:03:23 recorder kernel: [<c011b4a8>] exit_mm+0xbc/0xc3
Dec 27 04:03:23 recorder kernel: [<c013832e>] acct_collect+0x130/0x135
Dec 27 04:03:23 recorder kernel: [<c011c9a0>] do_exit+0x15a/0x68e
Dec 27 04:03:23 recorder kernel: [<c03192d4>] printk+0xe/0x12
Dec 27 04:03:23 recorder kernel: [<c0104a21>] oops_end+0x60/0x64
Dec 27 04:03:23 recorder kernel: [<c0103c39>] do_invalid_op+0x0/0x70
Dec 27 04:03:23 recorder kernel: [<c0103ca0>] do_invalid_op+0x67/0x70
Dec 27 04:03:23 recorder kernel: [<c01657ba>] __shrink_dcache_sb+0xae/0x2f1
Dec 27 04:03:23 recorder kernel: [<c012db09>] getnstimeofday+0x32/0xaf
Dec 27 04:03:23 recorder kernel: [<c01446aa>] shrink_list+0x23e/0x4ed
Dec 27 04:03:23 recorder kernel: [<c01414b3>] 
determine_dirtyable_memory+0xc/0x43
Dec 27 04:03:23 recorder kernel: [<c0141533>] get_dirty_limits+0x1c/0x245
Dec 27 04:03:23 recorder kernel: [<c031ad72>] error_code+0x6a/0x70
Dec 27 04:03:23 recorder kernel: [<c01657ba>] __shrink_dcache_sb+0xae/0x2f1
Dec 27 04:03:23 recorder kernel: [<c0165adf>] 
shrink_dcache_memory+0xe2/0x193
Dec 27 04:03:23 recorder kernel: [<c0144c7f>] shrink_slab+0xdd/0x146
Dec 27 04:03:23 recorder kernel: [<c0145596>] try_to_free_pages+0x1fb/0x2b9
Dec 27 04:03:23 recorder kernel: [<c014324a>] isolate_pages_global+0x0/0x1f2
Dec 27 04:03:23 recorder kernel: [<c01407bf>] 
__alloc_pages_internal+0x201/0x378
Dec 27 04:03:23 recorder kernel: [<c0148b22>] handle_mm_fault+0x139/0x5e2
Dec 27 04:03:23 recorder kernel: [<c0165da5>] dput+0x15/0x137
Dec 27 04:03:23 recorder kernel: [<c01110ec>] do_page_fault+0x29f/0x5f7
Dec 27 04:03:23 recorder kernel: [<c0161a21>] do_path_lookup+0x138/0x151
Dec 27 04:03:23 recorder kernel: [<c01d3fc3>] security_dentry_open+0xc/0xd
Dec 27 04:03:23 recorder kernel: [<c0157fa4>] __dentry_open+0x148/0x210
Dec 27 04:03:23 recorder kernel: [<c01580e9>] nameidata_to_filp+0x1c/0x2c
Dec 27 04:03:23 recorder kernel: [<c015bf01>] cp_new_stat64+0xf7/0x109
Dec 27 04:03:23 recorder kernel: [<c015c2e1>] sys_fstat64+0x1e/0x23
Dec 27 04:03:23 recorder kernel: [<c016308c>] do_fcntl+0x120/0x28f
Dec 27 04:03:23 recorder kernel: [<c0163263>] sys_fcntl64+0x68/0x79
Dec 27 04:03:23 recorder kernel: [<c016326d>] sys_fcntl64+0x72/0x79
Dec 27 04:03:23 recorder kernel: [<c0110e4d>] do_page_fault+0x0/0x5f7
Dec 27 04:03:23 recorder kernel: [<c031ad72>] error_code+0x6a/0x70

(at this point all sorts of nightly jobs go wrong with similar errors)