* 3.2.0-rc5 oops in ext4
@ 2012-01-01 2:47 Steinar H. Gunderson
2012-01-01 4:23 ` Ted Ts'o
0 siblings, 1 reply; 4+ messages in thread
From: Steinar H. Gunderson @ 2012-01-01 2:47 UTC (permalink / raw)
To: linux-kernel
Hi,
During relatively heavy write load, my 3.2.0-rc5 kernel oopsed (after sixteen
days of uptime, so this is not easily reproducible):
Jan 1 03:21:41 pannekake kernel: [1439120.482015] PGD 0
Jan 1 03:21:41 pannekake kernel: [1439120.488213] CPU 4
Jan 1 03:21:41 pannekake kernel: [1439120.490228] Modules linked in: ipt_REJECT iptable_filter ip_tables sha256_generic cryptd aes_x86_64 aes_generic af_packet microcode bridge stp llc ext4 jbd2 crc16 ext2 fuse dm_snapshot dm_crypt kvm_intel kvm coretemp w83627ehf hwmon_vid ip_gre gre sg ide_generic ide_gd_mod ide_cd_mod cdrom i2c_i801 psmouse i2c_core serio_raw pcspkr evdev ext3 jbd mbcache dm_mod raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq async_tx raid1 md_mod usbhid ide_pci_generic ide_core uhci_hcd ata_piix e1000e ehci_hcd sd_mod unix [last unloaded: scsi_wait_scan]
Jan 1 03:21:41 pannekake kernel: [1439120.543854]
Jan 1 03:21:41 pannekake kernel: [1439120.545732] Pid: 26600, comm: apache2 Not tainted 3.2.0-rc5 #2 Supermicro X8DTL/X8DTL
Jan 1 03:21:41 pannekake kernel: [1439120.554226] RIP: 0010:[<ffffffff81355161>] [<ffffffff81355161>] _raw_spin_lock+0x9/0x20
Jan 1 03:21:41 pannekake kernel: [1439120.562935] RSP: 0018:ffff88002a6259e8 EFLAGS: 00010202
Jan 1 03:21:41 pannekake kernel: [1439120.568660] RAX: 0000000000000100 RBX: ffffea0000bdb240 RCX: 0000000000000000
Jan 1 03:21:41 pannekake kernel: [1439120.576458] RDX: ffff880033231f70 RSI: ffff88002f6c9000 RDI: 0000000000000098
Jan 1 03:21:41 pannekake kernel: [1439120.584190] RBP: ffff88002a6259e8 R08: 0000000000000001 R09: 0000000000000001
Jan 1 03:21:41 pannekake kernel: [1439120.591952] R10: ffff880623d0fe28 R11: 0000000000000000 R12: 0000000000000000
Jan 1 03:21:41 pannekake kernel: [1439120.599697] R13: ffff880033231f70 R14: 0000000000000001 R15: 000000000003300c
Jan 1 03:21:41 pannekake kernel: [1439120.607482] FS: 00007f43323c0740(0000) GS:ffff880627280000(0000) knlGS:0000000000000000
Jan 1 03:21:41 pannekake kernel: [1439120.616190] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jan 1 03:21:41 pannekake kernel: [1439120.622311] CR2: 0000000000000098 CR3: 00000001289cd000 CR4: 00000000000006e0
Jan 1 03:21:41 pannekake kernel: [1439120.630095] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jan 1 03:21:41 pannekake kernel: [1439120.637828] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jan 1 03:21:41 pannekake kernel: [1439120.645558] Process apache2 (pid: 26600, threadinfo ffff88002a624000, task ffff880621254320)
Jan 1 03:21:41 pannekake kernel: [1439120.662206] ffff88002a625a18 ffffffff8110d19e ffff8806207a8800 ffff880588804f10
Jan 1 03:21:41 pannekake kernel: [1439120.670260] 0000000000000033 ffffea0000bdb240 ffff88002a625ae8 ffffffffa030c003
Jan 1 03:21:41 pannekake kernel: [1439120.678351] ffff88061f9c2498 ffff880588804f10 ffffea0000bdb240 0000000100001000
Jan 1 03:21:41 pannekake kernel: [1439120.689297] [<ffffffff8110d19e>] create_empty_buffers+0x43/0xae
Jan 1 03:21:41 pannekake kernel: [1439120.695723] [<ffffffffa030c003>] ext4_discard_partial_page_buffers_no_lock+0x9d/0x3ee [ext4]
Jan 1 03:21:41 pannekake kernel: [1439120.704817] [<ffffffffa0308860>] ? ext4_dirty_inode+0x42/0x47 [ext4]
Jan 1 03:21:41 pannekake kernel: [1439120.711660] [<ffffffff811081f0>] ? __mark_inode_dirty+0x2c/0x1e5
Jan 1 03:21:41 pannekake kernel: [1439120.718151] [<ffffffffa030c60f>] ext4_da_write_end+0x231/0x2df [ext4]
Jan 1 03:21:41 pannekake kernel: [1439120.725050] [<ffffffff810aaa25>] ? iov_iter_copy_from_user_atomic+0x6e/0xde
Jan 1 03:21:41 pannekake kernel: [1439120.732736] [<ffffffff810aad0d>] generic_file_buffered_write+0x16a/0x251
Jan 1 03:21:41 pannekake kernel: [1439120.739931] [<ffffffff810ac871>] __generic_file_aio_write+0x340/0x375
Jan 1 03:21:41 pannekake kernel: [1439120.746850] [<ffffffff81353dce>] ? __mutex_lock_slowpath+0x240/0x24f
Jan 1 03:21:41 pannekake kernel: [1439120.753674] [<ffffffff810ac907>] generic_file_aio_write+0x61/0xb6
Jan 1 03:21:41 pannekake kernel: [1439120.760275] [<ffffffffa0304ab2>] ext4_file_write+0x1e2/0x240 [ext4]
Jan 1 03:21:41 pannekake kernel: [1439120.767004] [<ffffffff810c86ef>] ? handle_pte_fault+0x248/0x6d8
Jan 1 03:21:41 pannekake kernel: [1439120.773379] [<ffffffff810379d8>] ? __dequeue_entity+0x2e/0x33
Jan 1 03:21:41 pannekake kernel: [1439120.779635] [<ffffffff810e75dd>] do_sync_write+0xc9/0x106
Jan 1 03:21:41 pannekake kernel: [1439120.785517] [<ffffffff81156f13>] ? security_file_permission+0x1e/0x86
Jan 1 03:21:41 pannekake kernel: [1439120.792429] [<ffffffff810e7fae>] vfs_write+0xae/0x153
Jan 1 03:21:41 pannekake kernel: [1439120.798019] [<ffffffff810e810c>] sys_write+0x45/0x6c
Jan 1 03:21:41 pannekake kernel: [1439120.803447] [<ffffffff8135b63b>] system_call_fastpath+0x16/0x1b
Jan 1 03:21:41 pannekake kernel: [1439120.837058] RSP <ffff88002a6259e8>
Jan 1 03:21:41 pannekake kernel: [1439120.867912] ---[ end trace 4335ee5e6a2dc567 ]---
Rebooted, fsck-ing now. Happy new year :-)
/* Steinar */
--
Homepage: http://www.sesse.net/
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 3.2.0-rc5 oops in ext4
2012-01-01 2:47 3.2.0-rc5 oops in ext4 Steinar H. Gunderson
@ 2012-01-01 4:23 ` Ted Ts'o
2012-01-01 6:15 ` Hugh Dickins
2012-01-01 10:41 ` Steinar H. Gunderson
0 siblings, 2 replies; 4+ messages in thread
From: Ted Ts'o @ 2012-01-01 4:23 UTC (permalink / raw)
To: Steinar H. Gunderson; +Cc: linux-kernel
On Sun, Jan 01, 2012 at 03:47:58AM +0100, Steinar H. Gunderson wrote:
> Hi,
>
> During relatively heavy write load, my 3.2.0-rc5 kernel oopsed (after sixteen
> days of uptime, so this is not easily reproducible):
This wasn't the whole kernel oops message. Can you get any lines
earlier than this? (Preferably beginning wit
"-----[ cut here ]-----"?)
- Ted
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 3.2.0-rc5 oops in ext4
2012-01-01 4:23 ` Ted Ts'o
@ 2012-01-01 6:15 ` Hugh Dickins
2012-01-01 10:41 ` Steinar H. Gunderson
1 sibling, 0 replies; 4+ messages in thread
From: Hugh Dickins @ 2012-01-01 6:15 UTC (permalink / raw)
To: Ted Ts'o, Steinar H. Gunderson; +Cc: linux-kernel
On Sat, 31 Dec 2011, Ted Ts'o wrote:
> On Sun, Jan 01, 2012 at 03:47:58AM +0100, Steinar H. Gunderson wrote:
> > Hi,
> >
> > During relatively heavy write load, my 3.2.0-rc5 kernel oopsed (after sixteen
> > days of uptime, so this is not easily reproducible):
>
> This wasn't the whole kernel oops message. Can you get any lines
> earlier than this? (Preferably beginning wit
> "-----[ cut here ]-----"?)
Nah, not necessary:
RIP: 0010:[<ffffffff81355161>] [<ffffffff81355161>] _raw_spin_lock+0x9/0x20
[<ffffffff8110d19e>] create_empty_buffers+0x43/0xae
[<ffffffffa030c003>] ext4_discard_partial_page_buffers_no_lock+0x9d/0x3ee [ext4]
[<ffffffffa030c60f>] ext4_da_write_end+0x231/0x2df [ext4]
is one of the symptoms I was seeing - fixed in -rc6 by Yongqiang's
093e6e3666f47d29763a235b404c84ee47ba8bb0
ext4: correctly handle pages w/o buffers in ext4_discard_partial_buffers()
Hugh
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 3.2.0-rc5 oops in ext4
2012-01-01 4:23 ` Ted Ts'o
2012-01-01 6:15 ` Hugh Dickins
@ 2012-01-01 10:41 ` Steinar H. Gunderson
1 sibling, 0 replies; 4+ messages in thread
From: Steinar H. Gunderson @ 2012-01-01 10:41 UTC (permalink / raw)
To: linux-kernel
On Sat, Dec 31, 2011 at 11:23:45PM -0500, Ted Ts'o wrote:
> This wasn't the whole kernel oops message. Can you get any lines
> earlier than this?
Sorry, no; that's where the syslog entry starts. I should have captured it
from the SSH session there and then, of course, but I assumes syslogd would
get it all.
In any case, if it's fixed in -rc6, I'll wager another reboot (to -rc7) and
hope the problem is already solved.
/* Steinar */
--
Homepage: http://www.sesse.net/
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2012-01-01 2:47 3.2.0-rc5 oops in ext4 Steinar H. Gunderson
2012-01-01 4:23 ` Ted Ts'o
2012-01-01 6:15 ` Hugh Dickins
2012-01-01 10:41 ` Steinar H. Gunderson
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