On 29-01-2014 00:54, Darrick J. Wong wrote:
[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().
It's to tell that your fix works for me. It's possible to push your fix
into kernel 3.13.x?
Jose Calhariz
--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 ]---
--
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que não sabe falar, para pessoas que não sabem ler.
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