[adding Mr. Trinidade because he seems to have the same problem] I /think/ I have a patch to fix this bug -- the clamp on SET_GC_SECTORS_USED in the line before the BUG_ON seems partially ineffectual. I'm about to send everyone a patch; can you put that into a kernel and test it out? The "easiest" way I've found to reproduce this bug is to create a bcache, mkfs.ext4 it, run fsstress on the ext4 FS until the cache is full, then umount and re-run mkfs.ext4, which discards the device before formatting. Eventually it'll BUG(). --D On Fri, Jan 24, 2014 at 10:28:03PM -0800, Darrick J. Wong wrote: > On Fri, Jan 17, 2014 at 12:34:17PM +0000, Jose Manuel dos Santos Calhariz wrote: > > > > Hi, is the second time I get this BUG. > > > > The first was during boot from an old 3.13.0-rc2 to a 3.13.0-rc7. > > The second time was when running tests. > > Yeah, I also saw this tonight on 3.13. Running on ext4 -> LVM -> LUKS -> > bcache -> ssd/disk. > > [81881.815077] ------------[ cut here ]------------ > [81881.815108] kernel BUG at drivers/md/bcache/btree.c:1168! > [81881.815123] invalid opcode: 0000 [#1] PREEMPT SMP > [81881.815140] Modules linked in: hfsplus hfs msdos ipt_MASQUERADE iptable_nat nf_nat_ipv4 xt_conntrack xt_CHECKSUM iptable_mangle tun bridge stp llc fuse af_packet microcode bnep rfcomm nfsd nfs_acl exportfs auth_rpcgss nfs lockd sunrpc xt_physdev xt_hl uvcvideo ip6t_rt videobuf2_core videodev nf_conntrack_ipv6 nf_defrag_ipv6 videobuf2_vmalloc videobuf2_memops ipt_REJECT xt_sctp xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_state ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables x_tables eeprom sch_fq_codel nls_iso8859_1 nls_cp437 vfat fat lpc_ich mfd_core loop bcache zlib_deflate libcrc32c > [81881.815346] CPU: 2 PID: 1418 Comm: bcache_gc Not tainted 3.13.0-60-birch #1 > [81881.815365] Hardware name: LENOVO 2349E51/2349E51, BIOS G1ET69WW (2.05 ) 09/12/2012 > [81881.815385] task: ffff880402038000 ti: ffff8804043c6000 task.ti: ffff8804043c6000 > [81881.815405] RIP: 0010:[<ffffffffa0017a01>] [<ffffffffa0017a01>] __bch_btree_mark_key+0x251/0x290 [bcache] > [81881.815438] RSP: 0018:ffff8804043c7c78 EFLAGS: 00010246 > [81881.815453] RAX: 0000000000000002 RBX: ffffc90004397dac RCX: 0000000000000200 > [81881.815471] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffffc90004397dac > [81881.815490] RBP: ffff8804043c7cc8 R08: 000007ffffffffff R09: 0000000000000001 > [81881.815509] R10: 0000000000003fff R11: 0000001000000000 R12: 0000000000000000 > [81881.815527] R13: ffff8800532002c0 R14: ffff8804017a0000 R15: 0000000000000000 > [81881.815546] FS: 0000000000000000(0000) GS:ffff88041e300000(0000) knlGS:0000000000000000 > [81881.815568] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [81881.815583] CR2: 00007f467f76b000 CR3: 0000000001c0c000 CR4: 00000000001407e0 > [81881.815602] Stack: > [81881.815609] ffff8804043c7ce8 ffff880408fb2000 ffff8804043c7c98 ffffffffa0014be5 > [81881.815632] ffff8804043c7cc8 ffff880408fb2000 ffff8804043c7de0 ffff8800532002c0 > [81881.815653] 0000000000000000 000000000000001c ffff8804043c7d68 ffffffffa0017e41 > [81881.815675] Call Trace: > [81881.815690] [<ffffffffa0014be5>] ? bch_ptr_invalid+0x25/0x30 [bcache] > [81881.815713] [<ffffffffa0017e41>] btree_gc_mark_node+0x81/0x210 [bcache] > [81881.815736] [<ffffffffa001a2e2>] bch_btree_gc+0x252/0x5d0 [bcache] > [81881.815759] [<ffffffffa001a698>] bch_gc_thread+0x38/0x120 [bcache] > [81881.815781] [<ffffffffa001a660>] ? bch_btree_gc+0x5d0/0x5d0 [bcache] > [81881.815801] [<ffffffff810e4b79>] kthread+0xc9/0xe0 > [81881.815816] [<ffffffff810e4ab0>] ? flush_kthread_worker+0xb0/0xb0 > [81881.815835] [<ffffffff817f63ec>] ret_from_fork+0x7c/0xb0 > [81881.815851] [<ffffffff810e4ab0>] ? flush_kthread_worker+0xb0/0xb0 > [81881.815868] Code: c8 44 89 55 b8 4c 89 5d b0 e8 5c 21 01 00 4c 8b 45 c0 84 c0 44 8b 4d c8 44 8b 55 b8 4c 8b 5d b0 75 13 0f b7 43 0a e9 28 ff ff ff <0f> 0b 48 89 df e9 ec fe ff ff 4c 89 45 c0 44 89 4d c8 44 89 55 > [81881.815956] RIP [<ffffffffa0017a01>] __bch_btree_mark_key+0x251/0x290 [bcache] > [81881.815982] RSP <ffff8804043c7c78> > [81881.820218] ---[ end trace f9ade3bfa4c277bf ]--- > > --D > > > > Follow the two stack trace: > > > > Jan 14 17:33:59 xxxxx kernel: ------------[ cut here ]------------ > > Jan 14 17:33:59 xxxxx kernel: kernel BUG at drivers/md/bcache/btree.c:1168! > > Jan 14 17:33:59 xxxxx kernel: invalid opcode: 0000 [#1] SMP > > Jan 14 17:33:59 xxxxx kernel: Modules linked in: lp parport_pc > > parport joydev st sr_mod cdrom xt_multiport iptable_filter ip_tables > > x_tables xfs libcrc32c ipmi_devintf loop snd_pcm mgag200 > > snd_page_alloc snd_timer ttm x86_pkg_temp_thermal drm_kms_helper drm > > snd i2c_algo_bit coretemp soundcore kvm_intel kvm > > +crc32c_intel ghash_clmulni_intel ioatdma aesni_intel aes_x86_64 > > iTCO_wdt sb_edac iTCO_vendor_support mei_me mei ablk_helper > > edac_core cryptd psmouse i2c_i801 lpc_ich serio_raw i2c_core pcspkr > > lrw mfd_core gf128mul ipmi_si ipmi_msghandler glue_helper evdev > > processor wmi thermal_sys button ext3 mbcache jbd dm_mod > > +raid1 md_mod hid_generic usbhid hid bcache sg sd_mod ses crc_t10dif > > enclosure crct10dif_common microcode ahci libahci libata ehci_pci > > ehci_hcd mpt2sas raid_class usbcore megaraid_sas scsi_transport_sas > > usb_common scsi_mod ixgbe dca ptp pps_core mdio [last unloaded: > > parport_pc] > > Jan 14 17:33:59 xxxxx kernel: CPU: 6 PID: 700 Comm: bcache_gc Not > > tainted 3.13.0-rc7-dsi #3 > > Jan 14 17:33:59 xxxxx kernel: Hardware name: Supermicro > > X9SRH-7F/7TF/X9SRH-7F/7TF, BIOS 3.00 07/05/2013 > > Jan 14 17:33:59 xxxxx kernel: task: ffff88101371a050 ti: > > ffff88100ea56000 task.ti: ffff88100ea56000 > > Jan 14 17:33:59 xxxxx kernel: RIP: 0010:[<ffffffffa01ce41e>] > > [<ffffffffa01ce41e>] __bch_btree_mark_key+0x171/0x1a8 [bcache] > > Jan 14 17:33:59 xxxxx kernel: RSP: 0018:ffff88100ea57cb8 EFLAGS: 00010246 > > Jan 14 17:33:59 xxxxx kernel: RAX: 0000000000000002 RBX: > > ffff880fab8001e8 RCX: 0000000000002000 > > Jan 14 17:33:59 xxxxx kernel: RDX: 0000000000000002 RSI: > > ffff880fab8001e8 RDI: ffff881028d60000 > > Jan 14 17:33:59 xxxxx kernel: RBP: 0000000000000000 R08: > > 0000000000000001 R09: ffff88101003c000 > > Jan 14 17:33:59 xxxxx kernel: R10: 0000000000001000 R11: > > ffff880fce594400 R12: 0000000000000000 > > Jan 14 17:33:59 xxxxx kernel: R13: ffff881028d60000 R14: > > 0000000000000001 R15: ffffc90016d93678 > > Jan 14 17:33:59 xxxxx kernel: FS: 0000000000000000(0000) > > GS:ffff88107fcc0000(0000) knlGS:0000000000000000 > > Jan 14 17:33:59 xxxxx kernel: CS: 0010 DS: 0000 ES: 0000 CR0: > > 0000000080050033 > > Jan 14 17:33:59 xxxxx kernel: CR2: 00007fe31614ccf8 CR3: > > 000000000160c000 CR4: 00000000000407e0 > > Jan 14 17:33:59 xxxxx kernel: Stack: > > Jan 14 17:33:59 xxxxx kernel: ffff880fab8001e8 0000000188a000fb > > ffff880fce594400 ffff880fce594400 > > Jan 14 17:33:59 xxxxx kernel: ffff880fab8001e8 0000000000000013 > > 0000000000000001 ffff88100ea57dc8 > > Jan 14 17:33:59 xxxxx kernel: ffff88100ea57d18 ffffffffa01ce72a > > ffff88101371a050 0000000200000000 > > Jan 14 17:33:59 xxxxx kernel: Call Trace: > > Jan 14 17:33:59 xxxxx kernel: [<ffffffffa01ce72a>] ? > > btree_gc_mark_node+0x4c/0x16d [bcache] > > Jan 14 17:33:59 xxxxx kernel: [<ffffffff811e8e63>] ? > > call_rwsem_down_write_failed+0x13/0x20 > > Jan 14 17:33:59 xxxxx kernel: [<ffffffffa01d005e>] ? > > bch_btree_gc+0x187/0x3a7 [bcache] > > Jan 14 17:33:59 xxxxx kernel: [<ffffffff8106ffde>] ? > > idle_balance+0x12b/0x166 > > Jan 14 17:33:59 xxxxx kernel: [<ffffffff81066b18>] ? mmdrop+0xd/0x1c > > Jan 14 17:33:59 xxxxx kernel: [<ffffffffa01d02ab>] ? > > bch_gc_thread+0x2d/0xe5 [bcache] > > Jan 14 17:33:59 xxxxx kernel: [<ffffffffa01d027e>] ? > > bch_btree_gc+0x3a7/0x3a7 [bcache] > > Jan 14 17:33:59 xxxxx kernel: [<ffffffffa01d027e>] ? > > bch_btree_gc+0x3a7/0x3a7 [bcache] > > Jan 14 17:33:59 xxxxx kernel: [<ffffffff8105f77a>] ? kthread+0x99/0xa1 > > Jan 14 17:33:59 xxxxx kernel: [<ffffffff8105f6e1>] ? > > __kthread_parkme+0x59/0x59 > > Jan 14 17:33:59 xxxxx kernel: [<ffffffff813b58cc>] ? ret_from_fork+0x7c/0xb0 > > Jan 14 17:33:59 xxxxx kernel: [<ffffffff8105f6e1>] ? > > __kthread_parkme+0x59/0x59 > > Jan 14 17:33:59 xxxxx kernel: Code: 00 01 c1 b8 ff 3f 00 00 81 f9 ff > > 3f 00 00 0f 46 c1 66 81 e2 03 80 25 ff 1f 00 00 c1 e0 02 09 d0 66 a9 > > fc 7f 66 41 89 47 0a 75 02 <0f> 0b ff c5 eb 05 31 ed 45 31 e4 48 8b > > 03 89 ea 48 c1 e8 3c 83 > > Jan 14 17:33:59 xxxxx kernel: RIP [<ffffffffa01ce41e>] > > __bch_btree_mark_key+0x171/0x1a8 [bcache] > > Jan 14 17:33:59 xxxxx kernel: RSP <ffff88100ea57cb8> > > Jan 14 17:33:59 xxxxx kernel: ---[ end trace 6a29ce0fa7816b54 ]--- > > > > > > Jan 16 12:16:00 xxxxx kernel: ------------[ cut here ]------------ > > Jan 16 12:16:00 xxxxx kernel: kernel BUG at drivers/md/bcache/btree.c:1168! > > Jan 16 12:16:00 xxxxx kernel: invalid opcode: 0000 [#1] SMP > > Jan 16 12:16:00 xxxxx kernel: Modules linked in: lp parport_pc > > parport joydev st sr_mod cdrom xt_multiport iptable_filter ip_tables > > x_tables xfs libcrc32c ipmi_devintf loop iTCO_wdt > > x86_pkg_temp_thermal coretemp kvm_intel kvm sb_edac > > iTCO_vendor_support mgag200 ioatdma snd_pcm snd_page_alloc snd_timer > > snd i2c_i801 > > +ttm soundcore crc32c_intel ghash_clmulni_intel aesni_intel lpc_ich > > aes_x86_64 drm_kms_helper drm i2c_algo_bit i2c_core mfd_core > > ablk_helper cryptd lrw gf128mul mei_me mei glue_helper psmouse > > edac_core serio_raw pcspkr evdev wmi ipmi_si ipmi_msghandler > > processor thermal_sys button ext3 mbcache jbd dm_mod raid1 > > +md_mod hid_generic usbhid hid bcache sg sd_mod ses crc_t10dif > > enclosure crct10dif_common microcode ehci_pci ehci_hcd usbcore ahci > > mpt2sas libahci usb_common raid_class libata scsi_transport_sas > > megaraid_sas ixgbe scsi_mod dca ptp pps_core mdio [last unloaded: > > parport_pc] > > Jan 16 12:16:00 xxxxx kernel: CPU: 8 PID: 707 Comm: bcache_gc Not > > tainted 3.13.0-rc7-dsi #3 > > Jan 16 12:16:00 xxxxx kernel: Hardware name: Supermicro > > X9SRH-7F/7TF/X9SRH-7F/7TF, BIOS 3.00 07/05/2013 > > Jan 16 12:16:00 xxxxx kernel: task: ffff88102c30f800 ti: > > ffff88100e44c000 task.ti: ffff88100e44c000 > > Jan 16 12:16:00 xxxxx kernel: RIP: 0010:[<ffffffffa01f341e>] > > [<ffffffffa01f341e>] __bch_btree_mark_key+0x171/0x1a8 [bcache] > > Jan 16 12:16:00 xxxxx kernel: RSP: 0018:ffff88100e44da78 EFLAGS: 00010246 > > Jan 16 12:16:00 xxxxx kernel: RAX: 0000000000000000 RBX: > > ffff880fed4037b8 RCX: 0000000000002000 > > Jan 16 12:16:00 xxxxx kernel: RDX: 0000000000000000 RSI: > > ffff880fed4037b8 RDI: ffff881028ce0000 > > Jan 16 12:16:00 xxxxx kernel: RBP: 0000000000000000 R08: > > 0000000000000001 R09: ffff8810109ea000 > > Jan 16 12:16:00 xxxxx kernel: R10: 0000000000001000 R11: > > ffff880fee906400 R12: 0000000000000000 > > Jan 16 12:16:00 xxxxx kernel: R13: ffff881028ce0000 R14: > > 0000000000000000 R15: ffffc900168dc660 > > Jan 16 12:16:00 xxxxx kernel: FS: 0000000000000000(0000) > > GS:ffff88107fd00000(0000) knlGS:0000000000000000 > > Jan 16 12:16:00 xxxxx kernel: CS: 0010 DS: 0000 ES: 0000 CR0: > > 0000000080050033 > > Jan 16 12:16:00 xxxxx kernel: CR2: 0000000000619570 CR3: > > 000000000160c000 CR4: 00000000000407e0 > > Jan 16 12:16:00 xxxxx kernel: Stack: > > Jan 16 12:16:00 xxxxx kernel: ffff88100e44dad8 0000000108801efc > > ffffffffa01f0c31 ffff880fee906400 > > Jan 16 12:16:00 xxxxx kernel: ffff880fed4037b8 0000000000000251 > > 0000000000000000 ffff88100e44ddc8 > > Jan 16 12:16:00 xxxxx kernel: ffff88100e44dad8 ffffffffa01f372a > > ffffffffa01f5bb1 00000251b5f80000 > > Jan 16 12:16:00 xxxxx kernel: Call Trace: > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f0c31>] ? > > bch_cut_back+0x41/0x41 [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f372a>] ? > > btree_gc_mark_node+0x4c/0x16d [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f5bb1>] ? > > tree_to_bkey+0x13/0x3c [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f64b8>] ? > > bch_ptr_invalid+0x1a/0x1a [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f4cbf>] ? > > btree_gc_recurse+0x677/0x88f [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f6398>] ? > > bch_btree_ptr_invalid+0x46/0xb0 [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffff813ae20a>] ? __schedule+0x48f/0x555 > > Jan 16 12:16:00 xxxxx kernel: [<ffffffff810680ad>] ? resched_task+0x15/0x4b > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f7ab0>] ? > > bch_btree_iter_next_filter+0x18/0x38 [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f379c>] ? > > btree_gc_mark_node+0xbe/0x16d [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffff811e8e63>] ? > > call_rwsem_down_write_failed+0x13/0x20 > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f50df>] ? > > bch_btree_gc+0x208/0x3a7 [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffff8106ffde>] ? > > idle_balance+0x12b/0x166 > > Jan 16 12:16:00 xxxxx kernel: [<ffffffff81066b18>] ? mmdrop+0xd/0x1c > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f52ab>] ? > > bch_gc_thread+0x2d/0xe5 [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f527e>] ? > > bch_btree_gc+0x3a7/0x3a7 [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffffa01f527e>] ? > > bch_btree_gc+0x3a7/0x3a7 [bcache] > > Jan 16 12:16:00 xxxxx kernel: [<ffffffff8105f77a>] ? kthread+0x99/0xa1 > > Jan 16 12:16:00 xxxxx kernel: [<ffffffff8105f6e1>] ? > > __kthread_parkme+0x59/0x59 > > Jan 16 12:16:00 xxxxx kernel: [<ffffffff813b58cc>] ? ret_from_fork+0x7c/0xb0 > > Jan 16 12:16:00 xxxxx kernel: [<ffffffff8105f6e1>] ? > > __kthread_parkme+0x59/0x59 > > Jan 16 12:16:00 xxxxx kernel: Code: 00 01 c1 b8 ff 3f 00 00 81 f9 ff > > 3f 00 00 0f 46 c1 66 81 e2 03 80 25 ff 1f 00 00 c1 e0 02 09 d0 66 a9 > > fc 7f 66 41 89 47 0a 75 02 <0f> 0b ff c5 eb 05 31 ed 45 31 e4 48 8b > > 03 89 ea 48 c1 e8 3c 83 > > Jan 16 12:16:00 xxxxx kernel: RIP [<ffffffffa01f341e>] > > __bch_btree_mark_key+0x171/0x1a8 [bcache] > > Jan 16 12:16:00 xxxxx kernel: RSP <ffff88100e44da78> > > Jan 16 12:16:00 xxxxx kernel: ---[ end trace 14e7f7c11d82ef2f ]--- > > > > > > > > > > > > -- > > -- > > Um repórter de rock é um jornalista que não sabe escrever, entrevistando gente > > que não sabe falar, para pessoas que não sabem ler. > > > > > > -- > > 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
