Public bug reported:
I was running an "apt-get dist-upgrade" when the FS suddenly remounted
to RO. The 2 audit lines are from apt-dater running successively "apt-
get update" and "apt-get dist-upgrade":
[153439.007924] type=1006 audit(1396010484.706:46): pid=16029 uid=0 old
auid=4294967295 new auid=104 old ses=4294967295 new ses=9 res=1
[153502.372488] type=1006 audit(1396010548.070:47): pid=16086 uid=0 old
auid=4294967295 new auid=104 old ses=4294967295 new ses=10 res=1
[153523.874714] EXT4-fs error (device vda1): ext4_mb_generate_buddy:756: group
1, 6475 clusters in bitmap, 6473 in gd; block bitmap corrupt.
[153523.876361] Aborting journal on device vda1-8.
[153523.889719] EXT4-fs error (device vda1): ext4_journal_check_start:56:
Detected aborted journal
[153523.890881] EXT4-fs (vda1): Remounting filesystem read-only
[153523.891574] EXT4-fs (vda1): Remounting filesystem read-only
[153523.892301] ------------[ cut here ]------------
[153523.892341] WARNING: CPU: 0 PID: 16129 at
/build/buildd/linux-3.13.0/fs/ext4/ext4_jbd2.c:259
__ext4_handle_dirty_metadata+0x1a2/0x1c0()
[153523.892342] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6
ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner
xt_conntrack nf_conntrack iptable_filter ip_tables x_tables psmouse serio_raw
floppy
[153523.892400] CPU: 0 PID: 16129 Comm: dpkg Not tainted 3.13.0-19-generic
#40-Ubuntu
[153523.892401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
[153523.892406] 0000000000000009 ffff880000a97ad0 ffffffff81711075
0000000000000000
[153523.892408] ffff880000a97b08 ffffffff810662cd ffff88000aca3d00
0000000000000000
[153523.892410] ffff88000a653000 ffffffff81835280 00000000000012ea
ffff880000a97b18
[153523.892412] Call Trace:
[153523.892444] [<ffffffff81711075>] dump_stack+0x45/0x56
[153523.892461] [<ffffffff810662cd>] warn_slowpath_common+0x7d/0xa0
[153523.892463] [<ffffffff810663aa>] warn_slowpath_null+0x1a/0x20
[153523.892466] [<ffffffff81268112>] __ext4_handle_dirty_metadata+0x1a2/0x1c0
[153523.892483] [<ffffffff81240eca>] ? ext4_dirty_inode+0x2a/0x60
[153523.892486] [<ffffffff812707d6>] ext4_free_blocks+0x646/0xbf0
[153523.892488] [<ffffffff81261ec5>] ext4_ext_rm_leaf+0x4a5/0x860
[153523.892490] [<ffffffff81260f87>] ? __ext4_ext_check+0x197/0x330
[153523.892492] [<ffffffff812645e0>] ? ext4_ext_remove_space+0xc0/0x7e0
[153523.892494] [<ffffffff8126483c>] ext4_ext_remove_space+0x31c/0x7e0
[153523.892496] [<ffffffff81266bb0>] ext4_ext_truncate+0xb0/0xe0
[153523.892498] [<ffffffff8123f339>] ext4_truncate+0x379/0x3c0
[153523.892500] [<ffffffff8123fef1>] ext4_evict_inode+0x491/0x4f0
[153523.892514] [<ffffffff811d3ac0>] evict+0xb0/0x1b0
[153523.892516] [<ffffffff811d42d5>] iput+0xf5/0x180
[153523.892525] [<ffffffff811c8cfe>] do_unlinkat+0x18e/0x2b0
[153523.892537] [<ffffffff81020d25>] ? syscall_trace_enter+0x145/0x250
[153523.892539] [<ffffffff811c9c56>] SyS_unlink+0x16/0x20
[153523.892545] [<ffffffff81721c7f>] tracesys+0xe1/0xe6
[153523.892547] ---[ end trace 9b25f1487620e754 ]---
[153523.892582] BUG: unable to handle kernel NULL pointer dereference at
0000000000000028
[153523.893579] IP: [<ffffffff81256fa1>] __ext4_error_inode+0x31/0x160
[153523.894350] PGD a06c067 PUD 819d067 PMD 0
[153523.894933] Oops: 0000 [#1] SMP
[153523.895397] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6
ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner
xt_conntrack nf_conntrack iptable_filter ip_tables x_tables psmouse serio_raw
floppy
[153523.896276] CPU: 0 PID: 16129 Comm: dpkg Tainted: G W
3.13.0-19-generic #40-Ubuntu
[153523.896276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
[153523.896276] task: ffff880009455fc0 ti: ffff880000a96000 task.ti:
ffff880000a96000
[153523.896276] RIP: 0010:[<ffffffff81256fa1>] [<ffffffff81256fa1>]
__ext4_error_inode+0x31/0x160
[153523.896276] RSP: 0018:ffff880000a97a88 EFLAGS: 00010296
[153523.896276] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000082
[153523.896276] RDX: 00000000000012ea RSI: ffffffff81a6a3e9 RDI:
0000000000000000
[153523.896276] RBP: ffff880000a97b18 R08: ffffffff81a74110 R09:
0000000000000005
[153523.896276] R10: 00000000ffffffe2 R11: ffff880000a977fe R12:
0000000000000082
[153523.896276] R13: ffffffff81835280 R14: 00000000000012ea R15:
ffffffff81a74110
[153523.896276] FS: 00007ff43c02b840(0000) GS:ffff88000b800000(0000)
knlGS:0000000000000000
[153523.896276] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[153523.896276] CR2: 0000000000000028 CR3: 0000000008df7000 CR4:
00000000000006f0
[153523.896276] Stack:
[153523.896276] ffff880000a97a90 0000000000000103 9b25f1487620e754
0000000000002e42
[153523.896276] 000000000000103e 0000000000000092 00000000000001fd
ffff88000a653000
[153523.896276] ffff880000a97b18 ffffffff81267c22 ffffffff810662df
ffff88000aca3d00
[153523.896276] Call Trace:
[153523.896276] [<ffffffff81267c22>] ? ext4_journal_abort_handle+0x42/0xc0
[153523.896276] [<ffffffff810662df>] ? warn_slowpath_common+0x8f/0xa0
[153523.896276] [<ffffffff8126807f>] __ext4_handle_dirty_metadata+0x10f/0x1c0
[153523.896276] [<ffffffff812707d6>] ext4_free_blocks+0x646/0xbf0
[153523.896276] [<ffffffff81261ec5>] ext4_ext_rm_leaf+0x4a5/0x860
[153523.896276] [<ffffffff81260f87>] ? __ext4_ext_check+0x197/0x330
[153523.896276] [<ffffffff812645e0>] ? ext4_ext_remove_space+0xc0/0x7e0
[153523.896276] [<ffffffff8126483c>] ext4_ext_remove_space+0x31c/0x7e0
[153523.896276] [<ffffffff81266bb0>] ext4_ext_truncate+0xb0/0xe0
[153523.896276] [<ffffffff8123f339>] ext4_truncate+0x379/0x3c0
[153523.896276] [<ffffffff8123fef1>] ext4_evict_inode+0x491/0x4f0
[153523.896276] [<ffffffff811d3ac0>] evict+0xb0/0x1b0
[153523.896276] [<ffffffff811d42d5>] iput+0xf5/0x180
[153523.896276] [<ffffffff811c8cfe>] do_unlinkat+0x18e/0x2b0
[153523.896276] [<ffffffff81020d25>] ? syscall_trace_enter+0x145/0x250
[153523.896276] [<ffffffff811c9c56>] SyS_unlink+0x16/0x20
[153523.896276] [<ffffffff81721c7f>] tracesys+0xe1/0xe6
[153523.896276] Code: 48 89 e5 41 57 4d 89 c7 41 56 41 89 d6 41 55 49 89 f5 48
c7 c6 e9 a3 a6 81 41 54 49 89 cc 53 48 89 fb 48 83 ec 68 4c 89 4c 24 60 <48> 8b
47 28 48 8b 57 40 48 8b 80 f8 02 00 00 48 8b 40 68 89 90
[153523.896276] RIP [<ffffffff81256fa1>] __ext4_error_inode+0x31/0x160
[153523.896276] RSP <ffff880000a97a88>
[153523.896276] CR2: 0000000000000028
[153523.933140] ---[ end trace 9b25f1487620e755 ]---
$ apt-cache policy linux-image-virtual linux-image-3.13.0-19-generic
linux-image-virtual:
Installed: 3.13.0.19.23
Candidate: 3.13.0.19.23
Version table:
*** 3.13.0.19.23 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status
linux-image-3.13.0-19-generic:
Installed: 3.13.0-19.40
Candidate: 3.13.0-19.40
Version table:
*** 3.13.0-19.40 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
- I
+ I was running an "apt-get dist-upgrade" when the FS suddenly remounted
+ to RO. The 2 audit lines are from apt-dater running successively "apt-
+ get update" and "apt-get dist-upgrade":
+
+ [153439.007924] type=1006 audit(1396010484.706:46): pid=16029 uid=0 old
auid=4294967295 new auid=104 old ses=4294967295 new ses=9 res=1
+ [153502.372488] type=1006 audit(1396010548.070:47): pid=16086 uid=0 old
auid=4294967295 new auid=104 old ses=4294967295 new ses=10 res=1
+ [153523.874714] EXT4-fs error (device vda1): ext4_mb_generate_buddy:756:
group 1, 6475 clusters in bitmap, 6473 in gd; block bitmap corrupt.
+ [153523.876361] Aborting journal on device vda1-8.
+ [153523.889719] EXT4-fs error (device vda1): ext4_journal_check_start:56:
Detected aborted journal
+ [153523.890881] EXT4-fs (vda1): Remounting filesystem read-only
+ [153523.891574] EXT4-fs (vda1): Remounting filesystem read-only
+ [153523.892301] ------------[ cut here ]------------
+ [153523.892341] WARNING: CPU: 0 PID: 16129 at
/build/buildd/linux-3.13.0/fs/ext4/ext4_jbd2.c:259
__ext4_handle_dirty_metadata+0x1a2/0x1c0()
+ [153523.892342] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6
ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner
xt_conntrack nf_conntrack iptable_filter ip_tables x_tables psmouse serio_raw
floppy
+ [153523.892400] CPU: 0 PID: 16129 Comm: dpkg Not tainted 3.13.0-19-generic
#40-Ubuntu
+ [153523.892401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
+ [153523.892406] 0000000000000009 ffff880000a97ad0 ffffffff81711075
0000000000000000
+ [153523.892408] ffff880000a97b08 ffffffff810662cd ffff88000aca3d00
0000000000000000
+ [153523.892410] ffff88000a653000 ffffffff81835280 00000000000012ea
ffff880000a97b18
+ [153523.892412] Call Trace:
+ [153523.892444] [<ffffffff81711075>] dump_stack+0x45/0x56
+ [153523.892461] [<ffffffff810662cd>] warn_slowpath_common+0x7d/0xa0
+ [153523.892463] [<ffffffff810663aa>] warn_slowpath_null+0x1a/0x20
+ [153523.892466] [<ffffffff81268112>] __ext4_handle_dirty_metadata+0x1a2/0x1c0
+ [153523.892483] [<ffffffff81240eca>] ? ext4_dirty_inode+0x2a/0x60
+ [153523.892486] [<ffffffff812707d6>] ext4_free_blocks+0x646/0xbf0
+ [153523.892488] [<ffffffff81261ec5>] ext4_ext_rm_leaf+0x4a5/0x860
+ [153523.892490] [<ffffffff81260f87>] ? __ext4_ext_check+0x197/0x330
+ [153523.892492] [<ffffffff812645e0>] ? ext4_ext_remove_space+0xc0/0x7e0
+ [153523.892494] [<ffffffff8126483c>] ext4_ext_remove_space+0x31c/0x7e0
+ [153523.892496] [<ffffffff81266bb0>] ext4_ext_truncate+0xb0/0xe0
+ [153523.892498] [<ffffffff8123f339>] ext4_truncate+0x379/0x3c0
+ [153523.892500] [<ffffffff8123fef1>] ext4_evict_inode+0x491/0x4f0
+ [153523.892514] [<ffffffff811d3ac0>] evict+0xb0/0x1b0
+ [153523.892516] [<ffffffff811d42d5>] iput+0xf5/0x180
+ [153523.892525] [<ffffffff811c8cfe>] do_unlinkat+0x18e/0x2b0
+ [153523.892537] [<ffffffff81020d25>] ? syscall_trace_enter+0x145/0x250
+ [153523.892539] [<ffffffff811c9c56>] SyS_unlink+0x16/0x20
+ [153523.892545] [<ffffffff81721c7f>] tracesys+0xe1/0xe6
+ [153523.892547] ---[ end trace 9b25f1487620e754 ]---
+ [153523.892582] BUG: unable to handle kernel NULL pointer dereference at
0000000000000028
+ [153523.893579] IP: [<ffffffff81256fa1>] __ext4_error_inode+0x31/0x160
+ [153523.894350] PGD a06c067 PUD 819d067 PMD 0
+ [153523.894933] Oops: 0000 [#1] SMP
+ [153523.895397] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6
ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner
xt_conntrack nf_conntrack iptable_filter ip_tables x_tables psmouse serio_raw
floppy
+ [153523.896276] CPU: 0 PID: 16129 Comm: dpkg Tainted: G W
3.13.0-19-generic #40-Ubuntu
+ [153523.896276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
+ [153523.896276] task: ffff880009455fc0 ti: ffff880000a96000 task.ti:
ffff880000a96000
+ [153523.896276] RIP: 0010:[<ffffffff81256fa1>] [<ffffffff81256fa1>]
__ext4_error_inode+0x31/0x160
+ [153523.896276] RSP: 0018:ffff880000a97a88 EFLAGS: 00010296
+ [153523.896276] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000082
+ [153523.896276] RDX: 00000000000012ea RSI: ffffffff81a6a3e9 RDI:
0000000000000000
+ [153523.896276] RBP: ffff880000a97b18 R08: ffffffff81a74110 R09:
0000000000000005
+ [153523.896276] R10: 00000000ffffffe2 R11: ffff880000a977fe R12:
0000000000000082
+ [153523.896276] R13: ffffffff81835280 R14: 00000000000012ea R15:
ffffffff81a74110
+ [153523.896276] FS: 00007ff43c02b840(0000) GS:ffff88000b800000(0000)
knlGS:0000000000000000
+ [153523.896276] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
+ [153523.896276] CR2: 0000000000000028 CR3: 0000000008df7000 CR4:
00000000000006f0
+ [153523.896276] Stack:
+ [153523.896276] ffff880000a97a90 0000000000000103 9b25f1487620e754
0000000000002e42
+ [153523.896276] 000000000000103e 0000000000000092 00000000000001fd
ffff88000a653000
+ [153523.896276] ffff880000a97b18 ffffffff81267c22 ffffffff810662df
ffff88000aca3d00
+ [153523.896276] Call Trace:
+ [153523.896276] [<ffffffff81267c22>] ? ext4_journal_abort_handle+0x42/0xc0
+ [153523.896276] [<ffffffff810662df>] ? warn_slowpath_common+0x8f/0xa0
+ [153523.896276] [<ffffffff8126807f>] __ext4_handle_dirty_metadata+0x10f/0x1c0
+ [153523.896276] [<ffffffff812707d6>] ext4_free_blocks+0x646/0xbf0
+ [153523.896276] [<ffffffff81261ec5>] ext4_ext_rm_leaf+0x4a5/0x860
+ [153523.896276] [<ffffffff81260f87>] ? __ext4_ext_check+0x197/0x330
+ [153523.896276] [<ffffffff812645e0>] ? ext4_ext_remove_space+0xc0/0x7e0
+ [153523.896276] [<ffffffff8126483c>] ext4_ext_remove_space+0x31c/0x7e0
+ [153523.896276] [<ffffffff81266bb0>] ext4_ext_truncate+0xb0/0xe0
+ [153523.896276] [<ffffffff8123f339>] ext4_truncate+0x379/0x3c0
+ [153523.896276] [<ffffffff8123fef1>] ext4_evict_inode+0x491/0x4f0
+ [153523.896276] [<ffffffff811d3ac0>] evict+0xb0/0x1b0
+ [153523.896276] [<ffffffff811d42d5>] iput+0xf5/0x180
+ [153523.896276] [<ffffffff811c8cfe>] do_unlinkat+0x18e/0x2b0
+ [153523.896276] [<ffffffff81020d25>] ? syscall_trace_enter+0x145/0x250
+ [153523.896276] [<ffffffff811c9c56>] SyS_unlink+0x16/0x20
+ [153523.896276] [<ffffffff81721c7f>] tracesys+0xe1/0xe6
+ [153523.896276] Code: 48 89 e5 41 57 4d 89 c7 41 56 41 89 d6 41 55 49 89 f5
48 c7 c6 e9 a3 a6 81 41 54 49 89 cc 53 48 89 fb 48 83 ec 68 4c 89 4c 24 60 <48>
8b 47 28 48 8b 57 40 48 8b 80 f8 02 00 00 48 8b 40 68 89 90
+ [153523.896276] RIP [<ffffffff81256fa1>] __ext4_error_inode+0x31/0x160
+ [153523.896276] RSP <ffff880000a97a88>
+ [153523.896276] CR2: 0000000000000028
+ [153523.933140] ---[ end trace 9b25f1487620e755 ]---
+
+
+ $ apt-cache policy linux-image-virtual linux-image-3.13.0-19-generic
+ linux-image-virtual:
+ Installed: 3.13.0.19.23
+ Candidate: 3.13.0.19.23
+ Version table:
+ *** 3.13.0.19.23 0
+ 500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
+ 100 /var/lib/dpkg/status
+ linux-image-3.13.0-19-generic:
+ Installed: 3.13.0-19.40
+ Candidate: 3.13.0-19.40
+ Version table:
+ *** 3.13.0-19.40 0
+ 500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
+ 100 /var/lib/dpkg/status
--
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https://bugs.launchpad.net/bugs/1298972
Title:
stacktrace in ext4: /build/buildd/linux-3.13.0/fs/ext4/ext4_jbd2.c:259
__ext4_handle_dirty_metadata+0x1a2/0x1c0()
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