Not sure what that one is. Found another integer overflow bug, but I don't think that could be causing this problem. I just uploaded a patch which fixes that overflow and adds a BUG_ON() which should help narrow it down. Mind giving that one a shot? On Tue, Jan 24, 2012 at 3:13 AM, Damien Churchill <damoxc@xxxxxxxxx> wrote: > The fix worked perfectly, thanks. I am now able to: > > 1) create cache device on LVM & register it > 2) create backing device on rbd & register it > 3) use backing device without attaching the cache perfectly fine > (format as ext4 + mount it and write some files) > 4) attach the cache device to the backing device > > Unfortunately when trying to mount the backing device after attaching > the cache I end up with a kernel BUG, the syslog output is below. > > [ 232.762594] bio: create slab <bio-1> at 1 > [ 232.770175] bcache: btree_journal_read() done > [ 232.778854] bcache: btree_check() done > [ 232.778867] bcache: journal replay done, 1 keys in 1 entries, seq 3-3 > [ 232.780579] bcache: registered cache device dm-1 > [ 242.271440] libceph: client0 fsid 58c297c0-018a-4c13-9a21-0140b9fb2f25 > [ 242.271973] libceph: mon1 10.10.20.1:6789 session established > [ 242.277119] rbd0: unknown partition table > [ 242.277236] rbd: rbd0: added with size 0x3e80000000 > [ 251.360401] bcache: Caching rbd0, looked up UUID > 12378985-91b3-4165-b3a6-6657831f050b > [ 280.083396] EXT4-fs (bcache0): recovery complete > [ 280.083403] EXT4-fs (bcache0): mounted filesystem with ordered data > mode. Opts: (null) > [ 283.160575] ------------[ cut here ]------------ > [ 283.160609] kernel BUG at > /home/dchurchill/Packages/oneiric/linux/linux-3.2.0~bcache/include/linux/scatterlist.h:63! > [ 283.162338] invalid opcode: 0000 [#1] SMP > [ 283.164064] CPU 0 > [ 283.164076] Modules linked in: bnep rfcomm bluetooth > ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE > iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state > nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp > iptable_filter ip_tables x_tables parport_pc ppdev kvm_intel kvm > snd_hda_codec_hdmi snd_hda_codec_realtek eeepc_wmi asus_wmi > sparse_keymap dm_multipath binfmt_misc bridge stp psmouse > snd_hda_intel snd_hda_codec snd_hwdep snd_pcm serio_raw snd_seq_midi > snd_rawmidi snd_seq_midi_event snd_seq radeon ttm snd_timer > snd_seq_device mei(C) drm_kms_helper drm i2c_algo_bit video snd > mac_hid soundcore snd_page_alloc wmi rbd libceph lp parport usbhid hid > e1000e btrfs zlib_deflate firewire_ohci pata_marvell r8169 > firewire_core crc_itu_t libcrc32c > [ 283.175414] > [ 283.177376] Pid: 4222, comm: ext4lazyinit Tainted: G C > 3.2.0-9-generic #17~oneiric2 System manufacturer System Product > Name/P8H67-M EVO > [ 283.179432] RIP: 0010:[<ffffffff812f3588>] [<ffffffff812f3588>] > blk_rq_map_sg+0x178/0x350 > [ 283.181502] RSP: 0018:ffff8803f01f99d0 EFLAGS: 00010006 > [ 283.183562] RAX: 0000000000000000 RBX: ffff8803f5019020 RCX: 4acfa4aaf8e1e9bf > [ 283.185635] RDX: 0000000000000001 RSI: 00000000d6679dfb RDI: ffff8803f5019000 > [ 283.187711] RBP: ffff8803f01f9a30 R08: 0000000000000000 R09: ffff8803eeb49e40 > [ 283.189786] R10: 0000000000000001 R11: 0000000000000001 R12: ffff8803f561c800 > [ 283.191858] R13: 000000008a430cfb R14: ffff8803f561c810 R15: 0000000000000082 > [ 283.193941] FS: 0000000000000000(0000) GS:ffff88043f400000(0000) > knlGS:0000000000000000 > [ 283.196022] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 283.198100] CR2: 0000000001b1d278 CR3: 0000000001c05000 CR4: 00000000000406f0 > [ 283.200191] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 283.202284] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 283.204382] Process ext4lazyinit (pid: 4222, threadinfo > ffff8803f01f8000, task ffff8803f57a2e20) > [ 283.206504] Stack: > [ 283.208584] ffff880400000001 ffff8803f57bb870 ffff8803f5019000 > 0100000000000001 > [ 283.210686] ffff8804213a3368 ffff8803eeb49e40 ffff8803f01f9a30 > ffff8803f54f9158 > [ 283.212778] ffff8803f57bb870 0000000000000001 0000000000000020 > ffff880424e96800 > [ 283.214833] Call Trace: > [ 283.216848] [<ffffffff81442011>] scsi_init_sgtable+0x41/0x70 > [ 283.218894] [<ffffffff8144207d>] scsi_init_io+0x3d/0x150 > [ 283.220930] [<ffffffff8144228a>] scsi_setup_fs_cmnd.part.34+0x5a/0x90 > [ 283.222942] [<ffffffff814422ef>] scsi_setup_fs_cmnd+0x2f/0x40 > [ 283.224918] [<ffffffff8145f62f>] sd_prep_fn+0xaf/0xaf0 > [ 283.226882] [<ffffffff813017f4>] ? cfq_dispatch_request+0x64/0xa0 > [ 283.228835] [<ffffffff812eecda>] blk_peek_request+0xba/0x240 > [ 283.230784] [<ffffffff814427e8>] scsi_request_fn+0x58/0x4c0 > [ 283.232727] [<ffffffff812e7c73>] ? __elv_add_request+0x1b3/0x290 > [ 283.234668] [<ffffffff812ef590>] blk_queue_bio+0x290/0x380 > [ 283.236611] [<ffffffff812ec114>] generic_make_request.part.50+0x74/0xb0 > [ 283.238570] [<ffffffff812ec528>] generic_make_request+0x68/0x70 > [ 283.240517] [<ffffffff812ec5b5>] submit_bio+0x85/0x110 > [ 283.242434] [<ffffffff811ac61a>] ? bio_alloc_bioset+0xba/0x100 > [ 283.244332] [<ffffffff812f4900>] blkdev_issue_zeroout+0x110/0x170 > [ 283.246223] [<ffffffff8121163b>] ext4_init_inode_table+0x15b/0x370 > [ 283.248070] [<ffffffff8166ef75>] ? schedule_timeout+0x175/0x320 > [ 283.249887] [<ffffffff81224c65>] ext4_run_li_request+0x85/0xe0 > [ 283.251686] [<ffffffff81224d5c>] ext4_lazyinit_thread+0x9c/0x1c0 > [ 283.253478] [<ffffffff81224cc0>] ? ext4_run_li_request+0xe0/0xe0 > [ 283.255273] [<ffffffff8108832c>] kthread+0x8c/0xa0 > [ 283.257048] [<ffffffff8167b034>] kernel_thread_helper+0x4/0x10 > [ 283.258824] [<ffffffff810882a0>] ? flush_kthread_worker+0xa0/0xa0 > > On 24 January 2012 03:24, Kent Overstreet <kent.overstreet@xxxxxxxxx> wrote: >> New code up, should be fixed. >> >> On Mon, Jan 23, 2012 at 4:33 AM, Damien Churchill <damoxc@xxxxxxxxx> wrote: >>> Cool thanks, let me know when there's something to test and I'll let >>> you know how it goes. >>> >>> On 23 January 2012 12:09, Kent Overstreet <koverstreet@xxxxxxxxxx> wrote: >>>> So, we called a null function pointer. Looks like I broke the ioctl >>>> handler somehow, I'll check that out tomorrow. >>>> >>>> On Mon, Jan 23, 2012 at 3:52 AM, Damien Churchill <damoxc@xxxxxxxxx> wrote: >>>>> Excellent thanks a lot Kent, that's fixed the problem with the lv cache device. >>>>> >>>>> I am experiencing a problem attempting to use a rbd as a backing >>>>> device also. This was working in 3.1 partially so I'm not sure what's >>>>> changed there. The following is output to console & syslog whenever >>>>> the bcache0 device is accessed by something. Well by blkid or >>>>> mkfs.ext4. >>>>> >>>>> Jan 23 11:49:29 dev1 kernel: [ 280.993416] BUG: unable to handle >>>>> kernel NULL pointer dereference at (null) >>>>> Jan 23 11:49:29 dev1 kernel: [ 280.995317] IP: [< (null)>] >>>>> (null) >>>>> Jan 23 11:49:29 dev1 kernel: [ 280.997180] PGD 401b0d067 PUD 3fbfa1067 PMD 0 >>>>> Jan 23 11:49:29 dev1 kernel: [ 280.999034] Oops: 0010 [#2] SMP >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.000831] CPU 2 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.000843] Modules linked in: bnep >>>>> rfcomm bluetooth ip6table_filter ip6_tables ebtable_nat ebtables >>>>> ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 >>>>> xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp >>>>> iptable_filter ip_tables x_tables kvm_intel kvm parport_pc ppdev >>>>> binfmt_misc usbhid hid snd_hda_codec_hdmi snd_hda_codec_realtek bridge >>>>> stp snd_seq_midi psmouse eeepc_wmi radeon ttm drm_kms_helper asus_wmi >>>>> snd_rawmidi drm sparse_keymap snd_seq_midi_event snd_hda_intel >>>>> snd_hda_codec snd_hwdep snd_pcm snd_seq snd_timer snd_seq_device snd >>>>> mac_hid video serio_raw soundcore dm_multipath wmi i2c_algo_bit >>>>> snd_page_alloc mei(C) rbd libceph lp parport firewire_ohci >>>>> firewire_core btrfs pata_marvell crc_itu_t e1000e r8169 zlib_deflate >>>>> libcrc32c >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.012308] >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.014277] Pid: 4152, comm: blkid >>>>> Tainted: G D C 3.2.0-9-generic #17~oneiric1 System >>>>> manufacturer System Product Name/P8H67-M EVO >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.016330] RIP: >>>>> 0010:[<0000000000000000>] [< (null)>] (null) >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.018364] RSP: 0018:ffff8803fbc3de60 >>>>> EFLAGS: 00010282 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.020397] RAX: ffffffffa00763a0 RBX: >>>>> 0000000000005331 RCX: 0000000000000000 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.022447] RDX: 0000000000005331 RSI: >>>>> 000000000000101d RDI: ffff880423649380 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.024502] RBP: ffff8803fbc3de68 R08: >>>>> 0000000000005331 R09: 000000000000101d >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.026563] R10: 00007fff9286b990 R11: >>>>> 0000000000000246 R12: 00000000ffffffe7 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.028628] R13: 0000000000000000 R14: >>>>> ffff8804236496c0 R15: ffff880420abd800 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.030698] FS: >>>>> 00007f62be453760(0000) GS:ffff88043f500000(0000) >>>>> knlGS:0000000000000000 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.032772] CS: 0010 DS: 0000 ES: >>>>> 0000 CR0: 0000000080050033 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.034832] CR2: 0000000000000000 CR3: >>>>> 00000003fa2da000 CR4: 00000000000406e0 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.036908] DR0: 0000000000000000 DR1: >>>>> 0000000000000000 DR2: 0000000000000000 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.038972] DR3: 0000000000000000 DR6: >>>>> 00000000ffff0ff0 DR7: 0000000000000400 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.041019] Process blkid (pid: 4152, >>>>> threadinfo ffff8803fbc3c000, task ffff8803faa18000) >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.043083] Stack: >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.045138] ffffffff8141fa0f >>>>> ffff8803fbc3dec8 ffffffff812f5110 0000000000000000 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.047243] ffff8804236496c0 >>>>> 0000000000000000 000000004f1d4903 00000000329f0436 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.049312] 0000000000000003 >>>>> ffff8804217ad3c0 ffff880404ae0a50 0000000000000000 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.051352] Call Trace: >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.053334] [<ffffffff8141fa0f>] ? >>>>> ioctl_dev+0x2f/0x40 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.055284] [<ffffffff812f5110>] >>>>> blkdev_ioctl+0x2e0/0x740 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.057191] [<ffffffff811acf10>] >>>>> block_ioctl+0x40/0x50 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.059056] [<ffffffff8118843a>] >>>>> do_vfs_ioctl+0x8a/0x340 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.060888] [<ffffffff8117b2ea>] ? >>>>> sys_newfstat+0x2a/0x40 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.062687] [<ffffffff81188781>] >>>>> sys_ioctl+0x91/0xa0 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.064478] [<ffffffff81678ec2>] >>>>> system_call_fastpath+0x16/0x1b >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.066259] Code: Bad RIP value. >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.068035] RIP [< (null)>] >>>>> (null) >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.069812] RSP <ffff8803fbc3de60> >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.071573] CR2: 0000000000000000 >>>>> Jan 23 11:49:29 dev1 kernel: [ 281.073342] ---[ end trace 644c98d7f838705d ]--- >>>>> >>>>> >>>>> On 21 January 2012 08:15, Kent Overstreet <koverstreet@xxxxxxxxxx> wrote: >>>>>> just tracked down a bug I was seeing when I was testing bcache on arm. >>>>>> >>>>>> Turns out whoever wrote bio_get_nr_vecs() never heard of integer overflow. >>>>>> >>>>>> But I bet it's the same bug you were seeing, and there's a trivial >>>>>> workaround in bcache. >>>>>> >>>>>> Patch will be up momentarily. >>>>>> >>>>>> On Fri, Jan 20, 2012 at 6:43 PM, Kent Overstreet >>>>>> <kent.overstreet@xxxxxxxxx> wrote: >>>>>>> Have you tried the bcache (3.1 based) branch with the same setup? Did >>>>>>> it occur there? >>>>>>> >>>>>>> On Fri, Jan 20, 2012 at 3:27 AM, Damien Churchill <damoxc@xxxxxxxxx> wrote: >>>>>>>> Hi there, >>>>>>>> >>>>>>>> I'm receiving the following after attempting to register a cache >>>>>>>> device, I've built the kernel using the Ubuntu Precise kernel with a >>>>>>>> patch from bcache-3.2-dev applied to the tree. >>>>>>>> >>>>>>>> The cache device was created by running: >>>>>>>> $ make-bcache -C -w 2k -b 1M /dev/sysvg/bcache-test >>>>>>>> >>>>>>>> The cache device is a logical volume, I'm unsure if that will have an impact? >>>>>>>> >>>>>>>> Regards, >>>>>>>> Damien >>>>>>>> >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.025724] bio: create slab <bio-1> at 1 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.025902] bcache: invalidating existing data >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.026324] ------------[ cut here ]------------ >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.026341] kernel BUG at >>>>>>>> /home/dchurchill/Packages/oneiric/linux/linux-3.2.0~bcache/include/linux/scatterlist.h:63! >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.026367] invalid opcode: 0000 [#1] SMP >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.026380] CPU 0 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.026385] Modules linked in: rfcomm >>>>>>>> bnep bluetooth ip6table_filter ip6_tables ebtable_nat ebtables >>>>>>>> ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 >>>>>>>> xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp >>>>>>>> iptable_filter ip_tables x_tables kvm_intel kvm parport_pc ppdev >>>>>>>> snd_hda_codec_hdmi snd_hda_codec_realtek binfmt_misc bridge usbhid hid >>>>>>>> psmouse snd_hda_intel stp snd_hda_codec snd_hwdep snd_pcm snd_seq_midi >>>>>>>> eeepc_wmi asus_wmi sparse_keymap radeon ttm drm_kms_helper drm wmi >>>>>>>> mac_hid serio_raw video snd_rawmidi snd_seq_midi_event mei(C) snd_seq >>>>>>>> snd_timer snd_seq_device snd i2c_algo_bit soundcore dm_multipath >>>>>>>> snd_page_alloc rbd libceph lp parport firewire_ohci firewire_core >>>>>>>> crc_itu_t e1000e pata_marvell r8169 btrfs zlib_deflate libcrc32c >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.026612] >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.026617] Pid: 2420, comm: bash >>>>>>>> Tainted: G C 3.2.0-9-generic #17~oneiric1 System >>>>>>>> manufacturer System Product Name/P8H67-M EVO >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.026649] RIP: >>>>>>>> 0010:[<ffffffff812f3588>] [<ffffffff812f3588>] >>>>>>>> blk_rq_map_sg+0x178/0x350 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.027607] RSP: 0018:ffff880420fbf7c8 >>>>>>>> EFLAGS: 00010002 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.028564] RAX: 0000000000000000 RBX: >>>>>>>> ffff8803fa608a20 RCX: 2700013524000135 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.029529] RDX: 0000000000000011 RSI: >>>>>>>> 0000000027000135 RDI: ffff8803fa608a00 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.030492] RBP: ffff880420fbf828 R08: >>>>>>>> 0000000000001000 R09: ffff880421862f00 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.031455] R10: 0000000000000001 R11: >>>>>>>> 0000000000000001 R12: ffff8803fa60a510 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.032417] R13: 0000000027000135 R14: >>>>>>>> ffff8803fa60a520 R15: 00000000000000d3 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.033385] FS: >>>>>>>> 00007f5259391720(0000) GS:ffff88043f400000(0000) >>>>>>>> knlGS:0000000000000000 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.034361] CS: 0010 DS: 0000 ES: >>>>>>>> 0000 CR0: 000000008005003b >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.035336] CR2: 00007f6d332e8000 CR3: >>>>>>>> 0000000401c16000 CR4: 00000000000406f0 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.036310] DR0: 0000000000000000 DR1: >>>>>>>> 0000000000000000 DR2: 0000000000000000 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.037287] DR3: 0000000000000000 DR6: >>>>>>>> 00000000ffff0ff0 DR7: 0000000000000400 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.038266] Process bash (pid: 2420, >>>>>>>> threadinfo ffff880420fbe000, task ffff880403b3dc40) >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.039252] Stack: >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.040220] 0000000000000011 >>>>>>>> ffff880400fcd2b0 ffff8803fa608800 0100000000000001 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.041196] ffff8804213a3368 >>>>>>>> ffff880421862f00 ffff880420fbf828 ffff8804209cb858 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.042171] ffff880400fcd2b0 >>>>>>>> 0000000000000001 0000000000000020 ffff880424e96800 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.043130] Call Trace: >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.044070] [<ffffffff81442521>] >>>>>>>> scsi_init_sgtable+0x41/0x70 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.045036] [<ffffffff8144258d>] >>>>>>>> scsi_init_io+0x3d/0x150 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.045983] [<ffffffff8144279a>] >>>>>>>> scsi_setup_fs_cmnd.part.34+0x5a/0x90 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.046917] [<ffffffff814427ff>] >>>>>>>> scsi_setup_fs_cmnd+0x2f/0x40 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.047837] [<ffffffff8145fb3f>] >>>>>>>> sd_prep_fn+0xaf/0xaf0 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.048747] [<ffffffff813017f4>] ? >>>>>>>> cfq_dispatch_request+0x64/0xa0 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.049654] [<ffffffff812eecda>] >>>>>>>> blk_peek_request+0xba/0x240 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.050558] [<ffffffff81442cf8>] >>>>>>>> scsi_request_fn+0x58/0x4c0 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.051461] [<ffffffff812e7c73>] ? >>>>>>>> __elv_add_request+0x1b3/0x290 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.052361] [<ffffffff812ef590>] >>>>>>>> blk_queue_bio+0x290/0x380 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.053262] [<ffffffff812ec114>] >>>>>>>> generic_make_request.part.50+0x74/0xb0 >>>>>>>> Jan 20 11:24:36 dev1 kernel: [ 119.054170] [<ffffffff812ec528>] >>>>>>>> generic_make_request+0x68/0x70 >>>>>>>> -- >>>>>>>> To unsubscribe from this list: send the line "unsubscribe linux-bcache" in >>>>>>>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>>>>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>>>>>> -- >>>>>>> To unsubscribe from this list: send the line "unsubscribe linux-bcache" in >>>>>>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>>>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
