From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brad Campbell Subject: Bcache explodes when trying to attach Date: Sat, 15 Oct 2011 13:43:44 +0800 Message-ID: <4E991D90.1040008@fnarfbargle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-bcache-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-bcache@vger.kernel.org I'm trying bcache merged with linus' git head (-rc9). I suppose I should really try it with a vanilla bcache-dev tree. Anyway, I can register the cache and backing device but when I try and attach the cache set to the backing device this happens : Cache is /dev/sde. Backing device is /dev/md10 (4 disk RAID10) [ 129.896180] bio: create slab at 2 [ 129.972092] bcache: journal replay done, 0 keys in 2 entries, seq 1-2 [ 157.704117] md: resync of RAID array md10 [ 157.704161] ------------[ cut here ]------------ [ 157.704168] kernel BUG at drivers/scsi/scsi_lib.c:1152! [ 157.704174] invalid opcode: 0000 [#1] SMP [ 157.704179] CPU 0 [ 157.704181] Modules linked in: nfs ipt_MASQUERADE xt_tcpudp iptable_filter iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables deflate zlib_deflate des_generic cbc ecb crypto_blkcipher sha1_generic md5 hmac crypto_hash cryptomgr aead crypto_algapi af_key fuse w83627ehf hwmon_vid netconsole configfs vhost_net powernow_k8 mperf kvm_amd kvm i2c_piix4 xhci_hcd k10temp ohci_hcd ehci_hcd atl1c ahci libahci usbcore megaraid_sas [last unloaded: scsi_wait_scan] [ 157.704233] [ 157.704239] Pid: 1422, comm: md10_raid10 Not tainted 3.1.0-rc9-00143-g9468c19 #5 To Be Filled By O.E.M. To Be Filled By O.E.M./890GX Extreme4 R2.0 [ 157.704249] RIP: 0010:[] [] scsi_setup_fs_cmnd+0xae/0xf0 [ 157.704263] RSP: 0018:ffff88041ba33be0 EFLAGS: 00010046 [ 157.704268] RAX: 0000000000000000 RBX: ffff88041bbe3428 RCX: 0000000000001000 [ 157.704273] RDX: 0000000000000000 RSI: ffff88041bbe3428 RDI: ffff88041d42b000 [ 157.704278] RBP: ffff88041d42b000 R08: 0000000000000000 R09: 0000000000000001 [ 157.704282] R10: a080000000000000 R11: dead000000100100 R12: ffff88041d42b000 [ 157.704287] R13: 000000000e9c3408 R14: ffff88041d42b048 R15: ffff88041c6a7400 [ 157.704293] FS: 00007fa45e67e700(0000) GS:ffff88042fc00000(0000) knlGS:0000000000000000 [ 157.704298] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 157.704305] CR2: 0000000000824008 CR3: 0000000407f12000 CR4: 00000000000006f0 [ 157.704309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 157.704314] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 157.704320] Process md10_raid10 (pid: 1422, threadinfo ffff88041ba32000, task ffff88041c779880) [ 157.704323] Stack: [ 157.704326] 0000000000000000 ffff88041bbe3428 ffff88041b998000 ffffffff812aff1c [ 157.704333] 01ff88041d42b800 ffff880400000001 ffff880400001000 0000000000000000 [ 157.704339] ffff88041bbe3428 ffff88041bbe3428 ffff88041bbe3428 ffff88041b998000 [ 157.704346] Call Trace: [ 157.704356] [] ? sd_prep_fn+0x15c/0xa50 [ 157.704364] [] ? blk_peek_request+0xb4/0x1d0 [ 157.704371] [] ? scsi_request_fn+0x50/0x4a0 [ 157.704377] [] ? blk_flush_plug_list+0x188/0x210 [ 157.704384] [] ? blk_finish_plug+0xb/0x30 [ 157.704392] [] ? raid10d+0x908/0xb50 [ 157.704400] [] ? schedule_timeout+0x1c5/0x230 [ 157.704408] [] ? sched_clock_cpu+0x61/0xf0 [ 157.704415] [] ? md_thread+0x10f/0x140 [ 157.704423] [] ? wake_up_bit+0x40/0x40 [ 157.704430] [] ? md_register_thread+0x100/0x100 [ 157.704437] [] ? md_register_thread+0x100/0x100 [ 157.704443] [] ? kthread+0x96/0xa0 [ 157.704452] [] ? kernel_thread_helper+0x4/0x10 [ 157.704459] [] ? kthread_worker_fn+0x120/0x120 [ 157.704467] [] ? gs_change+0xb/0xb [ 157.704470] Code: 80 00 00 00 00 48 83 c4 08 5b 5d c3 90 48 89 ef be 20 00 00 00 e8 73 a2 ff ff 48 85 c0 48 89 c7 74 d7 48 89 83 d8 00 00 00 eb 8d <0f> 0b eb fe 48 8b 00 48 85 c0 0f 84 67 ff ff ff 48 8b 40 50 48 [ 157.704510] RIP [] scsi_setup_fs_cmnd+0xae/0xf0 [ 157.704517] RSP [ 157.704522] ---[ end trace 3cdc1163f94b6a24 ]--- [ 157.704526] Kernel panic - not syncing: Fatal exception [ 157.704532] Pid: 1422, comm: md10_raid10 Tainted: G D 3.1.0-rc9-00143-g9468c19 #5 [ 157.704536] Call Trace: [ 157.704542] [] ? panic+0x92/0x193 [ 157.704549] [] ? kmsg_dump+0x41/0xf0 [ 157.704557] [] ? oops_end+0x8d/0xa0 [ 157.704564] [] ? do_invalid_op+0x84/0xa0 [ 157.704569] [] ? scsi_setup_fs_cmnd+0xae/0xf0 [ 157.704577] [] ? cfq_set_request+0x15e/0x3b0 [ 157.704584] [] ? invalid_op+0x15/0x20 [ 157.704590] [] ? scsi_setup_fs_cmnd+0xae/0xf0 [ 157.704598] [] ? sd_prep_fn+0x15c/0xa50 [ 157.704604] [] ? blk_peek_request+0xb4/0x1d0 [ 157.704609] [] ? scsi_request_fn+0x50/0x4a0 [ 157.704615] [] ? blk_flush_plug_list+0x188/0x210 [ 157.704622] [] ? blk_finish_plug+0xb/0x30 [ 157.704628] [] ? raid10d+0x908/0xb50 [ 157.704635] [] ? schedule_timeout+0x1c5/0x230 [ 157.704641] [] ? sched_clock_cpu+0x61/0xf0 [ 157.704648] [] ? md_thread+0x10f/0x140 [ 157.704655] [] ? wake_up_bit+0x40/0x40 [ 157.704661] [] ? md_register_thread+0x100/0x100 [ 157.704668] [] ? md_register_thread+0x100/0x100 [ 157.704675] [] ? kthread+0x96/0xa0 [ 157.704682] [] ? kernel_thread_helper+0x4/0x10 [ 157.704689] [] ? kthread_worker_fn+0x120/0x120 [ 157.704696] [] ? gs_change+0xb/0xb [ 157.707104] Rebooting in 10 seconds..