Bug 7799 - xfs on dmcrypt causes oopses on amd64
Summary: xfs on dmcrypt causes oopses on amd64
Status: CLOSED PATCH_ALREADY_AVAILABLE
Alias: None
Product: File System
Classification: Unclassified
Component: XFS (show other bugs)
Hardware: i386 Linux
: P2 high
Assignee: Dave Chinner
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2007-01-09 08:42 UTC by Moritz Moeller-Herrmann
Modified: 2007-01-09 15:41 UTC (History)
0 users

See Also:
Kernel Version: 2.6.16-2.6.18
Tree: Mainline
Regression: ---


Attachments

Description Moritz Moeller-Herrmann 2007-01-09 08:42:29 UTC
Most recent kernel where this bug did *NOT* occur: 2.6.14
Distribution: Debian unstable
Hardware Environment: AMD64, SATA hard disk, Athlon XP
Software Environment:
Problem Description: On heavy write activity (video editing) in an XFS file 
system on a dmcrypt encrypted partition, I get oopses and observe data loss due 
to crashing applications

Steps to reproduce:
Create XFS file system on dmcrypt partition. Start heavy video encoding (and 
maybe concurrent file access from normal desktop use)


I have observed this bug with and without nvidia binary module, so I think it 
is not related to that.

See also the report on LKML 
http://www.ussg.iu.edu/hypermail/linux/kernel/0603.3/0826.html

which has the same symptoms and the same SW+HW environment.
Comment 1 Moritz Moeller-Herrmann 2007-01-09 08:47:17 UTC
Here is a (tainted by nvidia) oops log:
Jan  9 15:06:47 rosalind kernel: ReiserFS: sda1: warning: vs-8115: get_num_ver: 
not directory or indirect item
Jan  9 15:06:47 rosalind last message repeated 3 times
Jan  9 15:19:35 rosalind -- MARK --
Jan  9 15:39:35 rosalind -- MARK --
Jan  9 15:59:35 rosalind -- MARK --
Jan  9 16:19:36 rosalind -- MARK --
Jan  9 16:24:01 rosalind kernel: PGD 1d14a067 PUD 4ed5067 PMD 0 
Jan  9 16:24:02 rosalind kernel: CPU 0 
Jan  9 16:24:02 rosalind kernel: Modules linked in: rt2500 xfs nvidia ipv6 
freq_table cryptoloop loop uhci_hcd pcmcia yenta_socket rsrc_nonstatic 
pcmcia_core video container button battery ac aes dm_crypt dm_snapshot 
dm_mirror dm_mod snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss 
snd_mixer_oss dvb_usb_a800 dvb_usb_dibusb_common dib3000mc dib3000_common 
dvb_usb snd_pcm psmouse dvb_core floppy snd_timer serio_raw snd firmware_class 
dvb_pll pcspkr soundcore snd_page_alloc i2c_nforce2 i2c_core evdev reiserfs 
sd_mod ide_cd cdrom usbhid usb_storage sata_nv libata scsi_mod forcedeth 
generic amd74xx ide_core ehci_hcd ohci_hcd thermal processor fan
Jan  9 16:24:02 rosalind kernel: Pid: 17486, comm: pdflush Tainted: P      
2.6.18-3-amd64 #1
Jan  9 16:24:02 rosalind kernel: RIP: 0010:[<ffffffff802a7632>]  
[<ffffffff802a7632>] page_to_pfn+0x0/0x33
Jan  9 16:24:02 rosalind kernel: RSP: 0018:ffff8100328ef7d8  EFLAGS: 00010293
Jan  9 16:24:02 rosalind kernel: RAX: 0000000000000000 RBX: ffff81003b133440 
RCX: 0000000000000000
Jan  9 16:24:02 rosalind kernel: RDX: 000000000000002a RSI: ffff81003b133440 
RDI: 0000000000000000
Jan  9 16:24:02 rosalind kernel: RBP: ffff810029fb3000 R08: 0000000000000000 
R09: ffff81001838e7b0
Jan  9 16:24:02 rosalind kernel: R10: 0000000044808018 R11: ffff810038642cc0 
R12: ffff81003b133440
Jan  9 16:24:02 rosalind kernel: R13: 0000000000000000 R14: 0000000000000000 
R15: ffff81003e7d8c98
Jan  9 16:24:02 rosalind kernel: FS:  0000000044808960(0000) 
GS:ffffffff80520000(0000) knlGS:00000000f7dd16c0
Jan  9 16:24:02 rosalind kernel: CS:  0010 DS: 0018 ES: 0018 CR0: 
000000008005003b
Jan  9 16:24:02 rosalind kernel: CR2: 0000000000000000 CR3: 000000002f85e000 
CR4: 00000000000006a0
Jan  9 16:24:02 rosalind kernel: Process pdflush (pid: 17486, threadinfo 
ffff8100328ee000, task ffff81001838e7b0)
Jan  9 16:24:02 rosalind kernel: Stack:  ffffffff8022c11c ffff81001838e7b0 
000000000000c400 0000000000000000
Jan  9 16:24:02 rosalind kernel:  ffff810000000001 0000000000000001 
ffff81003b133440 ffff81003e7d8c98
Jan  9 16:24:02 rosalind kernel:  ffff8100396c84c0 ffff810008ae63a8 
000000000000002a 0000000000056000
Jan  9 16:24:02 rosalind kernel: Call Trace:
Jan  9 16:24:02 rosalind kernel:  [<ffffffff8022c11c>] 
blk_recount_segments+0x7e/0x21b
Jan  9 16:24:02 rosalind kernel:  [<ffffffff802bb9af>] __bio_clone+0x71/0x8a
Jan  9 16:24:02 rosalind kernel:  [<ffffffff802bb9fd>] bio_clone+0x35/0x3d
Jan  9 16:24:02 rosalind kernel:  
[<ffffffff8823d731>] :dm_crypt:crypt_map+0xcd/0x304
Jan  9 16:24:02 rosalind kernel:  
[<ffffffff8821d2bf>] :dm_mod:__map_bio+0x47/0x9b
Jan  9 16:24:02 rosalind kernel:  
[<ffffffff8821dc1f>] :dm_mod:__split_bio+0x172/0x37d
Jan  9 16:24:02 rosalind kernel:  [<ffffffff80220260>] __up_read+0x13/0x8a
Jan  9 16:24:02 rosalind kernel:  
[<ffffffff8821e432>] :dm_mod:dm_request+0x101/0x110
Jan  9 16:24:02 rosalind kernel:  [<ffffffff8021a032>] 
generic_make_request+0x13a/0x14d
Jan  9 16:24:02 rosalind kernel:  [<ffffffff802311ae>] submit_bio+0xcb/0xd2
Jan  9 16:24:02 rosalind kernel:  [<ffffffff8022ac2b>] 
__bio_add_page+0x188/0x1ce
Jan  9 16:24:02 rosalind kernel:  
[<ffffffff888a0d33>] :xfs:xfs_submit_ioend_bio+0x1e/0x27
Jan  9 16:24:02 rosalind kernel:  
[<ffffffff888a176b>] :xfs:xfs_page_state_convert+0xa2f/0xb6e
Jan  9 16:24:02 rosalind kernel:  
[<ffffffff888a1ad8>] :xfs:xfs_vm_writepage+0xa7/0xdd
Jan  9 16:24:02 rosalind kernel:  [<ffffffff8021ad3e>] 
mpage_writepages+0x1a6/0x34d
Jan  9 16:24:02 rosalind kernel:  
[<ffffffff888a1a31>] :xfs:xfs_vm_writepage+0x0/0xdd
Jan  9 16:24:02 rosalind kernel:  [<ffffffff80256e6f>] do_writepages+0x20/0x2f
Jan  9 16:24:02 rosalind kernel:  [<ffffffff8022dd5d>] 
__writeback_single_inode+0x1b4/0x38b
Jan  9 16:24:02 rosalind kernel:  [<ffffffff8021ef2c>] 
sync_sb_inodes+0x1d1/0x2b5
Jan  9 16:24:02 rosalind kernel:  [<ffffffff80290354>] 
keventd_create_kthread+0x0/0x61
Jan  9 16:24:02 rosalind kernel:  [<ffffffff8024caf9>] 
writeback_inodes+0x7d/0xd3
Jan  9 16:24:02 rosalind kernel:  [<ffffffff802a8ae2>] 
background_writeout+0x82/0xb5
Jan  9 16:24:02 rosalind kernel:  [<ffffffff80252595>] pdflush+0x0/0x1ed
Jan  9 16:24:02 rosalind kernel:  [<ffffffff802526d8>] pdflush+0x143/0x1ed
Jan  9 16:24:02 rosalind kernel:  [<ffffffff802a8a60>] 
background_writeout+0x0/0xb5
Jan  9 16:24:02 rosalind kernel:  [<ffffffff802306e0>] kthread+0xd4/0x107
Jan  9 16:24:02 rosalind kernel:  [<ffffffff802594d8>] child_rip+0xa/0x12
Jan  9 16:24:02 rosalind kernel:  [<ffffffff80290354>] 
keventd_create_kthread+0x0/0x61
Jan  9 16:24:02 rosalind kernel:  [<ffffffff8023060c>] kthread+0x0/0x107
Jan  9 16:24:02 rosalind kernel:  [<ffffffff802594ce>] child_rip+0x0/0x12
Jan  9 16:24:02 rosalind kernel: 
Jan  9 16:24:02 rosalind kernel: 
Jan  9 16:24:02 rosalind kernel: Code: 48 8b 07 48 c1 e8 3a 48 8b 14 c5 20 c0 
52 80 48 b8 b7 6d db 
Jan  9 16:24:02 rosalind kernel:  RSP <ffff8100328ef7d8>
Jan  9 16:39:36 rosalind -- MARK --
Jan  9 16:44:02 rosalind kernel:  <1>Unable to handle kernel NULL pointer 
dereference at 0000000000000000 RIP: 
Jan  9 16:44:02 rosalind kernel: PGD 1c321067 PUD 3d5fe067 PMD 0 
Jan  9 16:44:02 rosalind kernel: CPU 0 
Jan  9 16:44:02 rosalind kernel: Modules linked in: rt2500 xfs nvidia ipv6 
freq_table cryptoloop loop uhci_hcd pcmcia yenta_socket rsrc_nonstatic 
pcmcia_core video container button battery ac aes dm_crypt dm_snapshot 
dm_mirror dm_mod snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss 
snd_mixer_oss dvb_usb_a800 dvb_usb_dibusb_common dib3000mc dib3000_common 
dvb_usb snd_pcm psmouse dvb_core floppy snd_timer serio_raw snd firmware_class 
dvb_pll pcspkr soundcore snd_page_alloc i2c_nforce2 i2c_core evdev reiserfs 
sd_mod ide_cd cdrom usbhid usb_storage sata_nv libata scsi_mod forcedeth 
generic amd74xx ide_core ehci_hcd ohci_hcd thermal processor fan
Jan  9 16:44:02 rosalind kernel: Pid: 25603, comm: kio_http Tainted: P      
2.6.18-3-amd64 #1
Jan  9 16:44:02 rosalind kernel: RIP: 0010:[<ffffffff802a7632>]  
[<ffffffff802a7632>] page_to_pfn+0x0/0x33
Jan  9 16:44:02 rosalind kernel: RSP: 0018:ffff810029c375f0  EFLAGS: 00010297
Jan  9 16:44:02 rosalind kernel: RAX: 0000000000000000 RBX: ffff81002bc06840 
RCX: 0000000000000000
Jan  9 16:44:02 rosalind kernel: RDX: 0000000000000013 RSI: ffff81002bc06840 
RDI: 0000000000000000
Jan  9 16:44:02 rosalind kernel: RBP: ffff8100033d3800 R08: ffff810029c36000 
R09: ffff810001008068
Jan  9 16:44:02 rosalind kernel: R10: 0000000000000000 R11: ffff8100005a40c0 
R12: ffff81002bc06840
Jan  9 16:44:02 rosalind kernel: R13: 0000000000000000 R14: 0000000000000000 
R15: ffff81003e7d8c98
Jan  9 16:44:02 rosalind kernel: FS:  00002b2ff0f11cf0(0000) 
GS:ffffffff80520000(0000) knlGS:00000000f7dd16c0
Jan  9 16:44:02 rosalind kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 
000000008005003b
Jan  9 16:44:02 rosalind kernel: CR2: 0000000000000000 CR3: 000000002b3a8000 
CR4: 00000000000006a0
Jan  9 16:44:02 rosalind kernel: Process kio_http (pid: 25603, threadinfo 
ffff810029c36000, task ffff8100345ed140)
Jan  9 16:44:02 rosalind kernel: Stack:  ffffffff8022c11c ffff8100345ed140 
000000000000c400 0000000000000000
Jan  9 16:44:02 rosalind kernel:  ffff810000000001 0000000000000001 
ffff81002bc06840 ffff81003e7d8c98
Jan  9 16:44:02 rosalind kernel:  ffff8100005a4dc0 ffff810008ae6128 
0000000000000013 000000000000e000
Jan  9 16:44:02 rosalind kernel: Call Trace:
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8022c11c>] 
blk_recount_segments+0x7e/0x21b
Jan  9 16:44:02 rosalind kernel:  [<ffffffff802bb9af>] __bio_clone+0x71/0x8a
Jan  9 16:44:02 rosalind kernel:  [<ffffffff802bb9fd>] bio_clone+0x35/0x3d
Jan  9 16:44:02 rosalind kernel:  
[<ffffffff8823d731>] :dm_crypt:crypt_map+0xcd/0x304
Jan  9 16:44:02 rosalind kernel:  
[<ffffffff8821d2bf>] :dm_mod:__map_bio+0x47/0x9b
Jan  9 16:44:02 rosalind kernel:  
[<ffffffff8821dc1f>] :dm_mod:__split_bio+0x172/0x37d
Jan  9 16:44:02 rosalind kernel:  [<ffffffff80220260>] __up_read+0x13/0x8a
Jan  9 16:44:02 rosalind kernel:  
[<ffffffff8821e432>] :dm_mod:dm_request+0x101/0x110
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8021a032>] 
generic_make_request+0x13a/0x14d
Jan  9 16:44:02 rosalind kernel:  [<ffffffff802311ae>] submit_bio+0xcb/0xd2
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8022ac2b>] 
__bio_add_page+0x188/0x1ce
Jan  9 16:44:02 rosalind kernel:  
[<ffffffff888a0d33>] :xfs:xfs_submit_ioend_bio+0x1e/0x27
Jan  9 16:44:02 rosalind kernel:  
[<ffffffff888a1790>] :xfs:xfs_page_state_convert+0xa54/0xb6e
Jan  9 16:44:02 rosalind kernel:  
[<ffffffff888a1ad8>] :xfs:xfs_vm_writepage+0xa7/0xdd
Jan  9 16:44:02 rosalind kernel:  [<ffffffff802a9be2>] 
shrink_inactive_list+0x3c6/0x7e1
Jan  9 16:44:02 rosalind kernel:  
[<ffffffff88883b7a>] :xfs:xfs_iext_bno_to_ext+0xc0/0x140
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8024458d>] 
__pagevec_release+0x19/0x22
Jan  9 16:44:02 rosalind kernel:  [<ffffffff802a96fd>] 
shrink_active_list+0x45e/0x46c
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8021112a>] shrink_zone+0xe2/0x107
Jan  9 16:44:02 rosalind kernel:  [<ffffffff802aa6de>] 
try_to_free_pages+0x159/0x260
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8020e01c>] 
__alloc_pages+0x1a8/0x2a9
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8020f4e4>] do_wp_page+0x244/0x450
Jan  9 16:44:02 rosalind kernel:  [<ffffffff80208c89>] 
__handle_mm_fault+0x8e6/0x94f
Jan  9 16:44:02 rosalind kernel:  [<ffffffff80220260>] __up_read+0x13/0x8a
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8020a6d1>] 
do_page_fault+0x39d/0x706
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8020bd1d>] 
_atomic_dec_and_lock+0x39/0x57
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8020c8fb>] dput+0x34/0x153
Jan  9 16:44:02 rosalind kernel:  [<ffffffff8025931d>] error_exit+0x0/0x84
Jan  9 16:44:02 rosalind kernel: 
Jan  9 16:44:02 rosalind kernel: 
Jan  9 16:44:02 rosalind kernel: Code: 48 8b 07 48 c1 e8 3a 48 8b 14 c5 20 c0 
52 80 48 b8 b7 6d db 
Jan  9 16:44:02 rosalind kernel:  RSP <ffff810029c375f0>
Jan  9 16:44:06 rosalind kernel:  <1>Unable to handle kernel NULL pointer 
dereference at 0000000000000000 RIP: 
Jan  9 16:44:06 rosalind kernel: PGD 25c60067 PUD 25c80067 PMD 0 
Jan  9 16:44:06 rosalind kernel: CPU 0 
Jan  9 16:44:06 rosalind kernel: Modules linked in: rt2500 xfs nvidia ipv6 
freq_table cryptoloop loop uhci_hcd pcmcia yenta_socket rsrc_nonstatic 
pcmcia_core video container button battery ac aes dm_crypt dm_snapshot 
dm_mirror dm_mod snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss 
snd_mixer_oss dvb_usb_a800 dvb_usb_dibusb_common dib3000mc dib3000_common 
dvb_usb snd_pcm psmouse dvb_core floppy snd_timer serio_raw snd firmware_class 
dvb_pll pcspkr soundcore snd_page_alloc i2c_nforce2 i2c_core evdev reiserfs 
sd_mod ide_cd cdrom usbhid usb_storage sata_nv libata scsi_mod forcedeth 
generic amd74xx ide_core ehci_hcd ohci_hcd thermal processor fan
Jan  9 16:44:06 rosalind kernel: Pid: 4594, comm: Xorg Tainted: P      
2.6.18-3-amd64 #1
Jan  9 16:44:06 rosalind kernel: RIP: 0010:[<ffffffff802a7632>]  
[<ffffffff802a7632>] page_to_pfn+0x0/0x33
Jan  9 16:44:06 rosalind kernel: RSP: 0018:ffff81002614f2e0  EFLAGS: 00010283
Jan  9 16:44:06 rosalind kernel: RAX: 0000000000000000 RBX: ffff8100167725c0 
RCX: 0000000000000000
Jan  9 16:44:06 rosalind kernel: RDX: 0000000000000020 RSI: ffff8100167725c0 
RDI: 0000000000000000
Jan  9 16:44:06 rosalind kernel: RBP: ffff81003cfaa000 R08: ffff81002614e000 
R09: 0000000000000000
Jan  9 16:44:06 rosalind kernel: R10: 0000000044808018 R11: ffff81002ac83ec0 
R12: ffff8100167725c0
Jan  9 16:44:06 rosalind kernel: R13: 0000000000000000 R14: 0000000000000000 
R15: ffff81003e7d8c98
Jan  9 16:44:06 rosalind kernel: FS:  00002addc1c91ae0(0000) 
GS:ffffffff80520000(0000) knlGS:00000000f7dd16c0
Jan  9 16:44:06 rosalind kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 
000000008005003b
Jan  9 16:44:06 rosalind kernel: CR2: 0000000000000000 CR3: 0000000018e28000 
CR4: 00000000000006a0
Jan  9 16:44:06 rosalind kernel: Process Xorg (pid: 4594, threadinfo 
ffff81002614e000, task ffff8100266c6830)
Jan  9 16:44:06 rosalind kernel: Stack:  ffffffff8022c11c ffff8100266c6830 
000000000000c400 0000000000000000
Jan  9 16:44:06 rosalind kernel:  ffff810000000001 0000000000000001 
ffff8100167725c0 ffff81003e7d8c98
Jan  9 16:44:06 rosalind kernel:  ffff81003896a6c0 ffff81000c66aca8 
0000000000000020 0000000000001000
Jan  9 16:44:06 rosalind kernel: Call Trace:
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8022c11c>] 
blk_recount_segments+0x7e/0x21b
Jan  9 16:44:06 rosalind kernel:  [<ffffffff802bb9af>] __bio_clone+0x71/0x8a
Jan  9 16:44:06 rosalind kernel:  [<ffffffff802bb9fd>] bio_clone+0x35/0x3d
Jan  9 16:44:06 rosalind kernel:  
[<ffffffff8823d731>] :dm_crypt:crypt_map+0xcd/0x304
Jan  9 16:44:06 rosalind kernel:  
[<ffffffff8821d2bf>] :dm_mod:__map_bio+0x47/0x9b
Jan  9 16:44:06 rosalind kernel:  
[<ffffffff8821dc1f>] :dm_mod:__split_bio+0x172/0x37d
Jan  9 16:44:06 rosalind kernel:  [<ffffffff80220260>] __up_read+0x13/0x8a
Jan  9 16:44:06 rosalind kernel:  
[<ffffffff8821e432>] :dm_mod:dm_request+0x101/0x110
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8021a032>] 
generic_make_request+0x13a/0x14d
Jan  9 16:44:06 rosalind kernel:  [<ffffffff802311ae>] submit_bio+0xcb/0xd2
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8022ac2b>] 
__bio_add_page+0x188/0x1ce
Jan  9 16:44:06 rosalind kernel:  
[<ffffffff888a0d33>] :xfs:xfs_submit_ioend_bio+0x1e/0x27
Jan  9 16:44:06 rosalind kernel:  
[<ffffffff888a1790>] :xfs:xfs_page_state_convert+0xa54/0xb6e
Jan  9 16:44:06 rosalind kernel:  
[<ffffffff888a1ad8>] :xfs:xfs_vm_writepage+0xa7/0xdd
Jan  9 16:44:06 rosalind kernel:  [<ffffffff802a9be2>] 
shrink_inactive_list+0x3c6/0x7e1
Jan  9 16:44:06 rosalind kernel:  
[<ffffffff8845e124>] :nvidia:_nv007174rm+0x150/0x50a
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8024458d>] 
__pagevec_release+0x19/0x22
Jan  9 16:44:06 rosalind kernel:  [<ffffffff802a96fd>] 
shrink_active_list+0x45e/0x46c
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8021112a>] shrink_zone+0xe2/0x107
Jan  9 16:44:06 rosalind kernel:  [<ffffffff802aa6de>] 
try_to_free_pages+0x159/0x260
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8020e01c>] 
__alloc_pages+0x1a8/0x2a9
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8022c446>] __wake_up+0x38/0x4f
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8023a1b8>] 
__get_free_pages+0xe/0x33
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8021c833>] __pollwait+0x58/0xe0
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8022e2cd>] unix_poll+0x21/0xa4
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8020f961>] do_select+0x271/0x439
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8021c7db>] __pollwait+0x0/0xe0
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8027d3de>] 
default_wake_function+0x0/0xe
Jan  9 16:44:06 rosalind last message repeated 9 times
Jan  9 16:44:06 rosalind kernel:  [<ffffffff802147d6>] sys_select+0x26d/0x3d4
Jan  9 16:44:06 rosalind kernel:  [<ffffffff80266c22>] init_fpu+0x62/0x7f
Jan  9 16:44:06 rosalind kernel:  [<ffffffff80263204>] 
math_state_restore+0x23/0x4c
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8025931d>] error_exit+0x0/0x84
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8023fde4>] 
sys_rt_sigreturn+0x221/0x2c9
Jan  9 16:44:06 rosalind kernel:  [<ffffffff8025864e>] system_call+0x7e/0x83
Jan  9 16:44:06 rosalind kernel: 
Jan  9 16:44:06 rosalind kernel: 
Jan  9 16:44:06 rosalind kernel: Code: 48 8b 07 48 c1 e8 3a 48 8b 14 c5 20 c0 
52 80 48 b8 b7 6d db 
Jan  9 16:44:06 rosalind kernel:  RSP <ffff81002614f2e0>
Jan  9 16:44:46 rosalind kernel:  <6>SysRq : Emergency Sync
Jan  9 16:44:46 rosalind kernel: Emergency Sync complete
Jan  9 16:44:48 rosalind kernel: SysRq : Emergency Sync
Jan  9 16:44:48 rosalind kernel: Emergency Sync complete
Jan  9 16:44:50 rosalind exiting on signal 15
Comment 2 Dave Chinner 2007-01-09 15:40:37 UTC
Bug in dmcrypt. There's been several bugs in dmcrypt that   
only XFS has triggered and the last of these that I know about   
was fixed in 2.6.19.   

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