Bug#526737: marked as done (md: RAID 1 check makes kernel almost panic)

To: martin f krafft <madduck@debian.org>
Subject: Bug#526737: marked as done (md: RAID 1 check makes kernel almost panic)
From: owner@bugs.debian.org (Debian Bug Tracking System)
Date: Sun, 03 May 2009 08:24:07 +0000
Message-id: <[🔎] handler.526737.D526737.12413387813661.ackdone@bugs.debian.org>
References: <20090503081929.GC11342@piper.oerlikon.madduck.net> <[🔎] 20090503073135.GA9196@abydos.adm.naquadah.org>

Your message dated Sun, 3 May 2009 10:19:29 +0200
with message-id <20090503081929.GC11342@piper.oerlikon.madduck.net>
and subject line Re: Bug#526737: md: RAID 1 check makes kernel almost panic
has caused the Debian Bug report #526737,
regarding md: RAID 1 check makes kernel almost panic
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
526737: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=526737
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

--- Begin Message ---

To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: md: RAID 1 check makes kernel almost panic
From: Julien Danjou <acid@debian.org>
Date: Sun, 3 May 2009 09:31:35 +0200
Message-id: <[🔎] 20090503073135.GA9196@abydos.adm.naquadah.org>

Package: linux-image-2.6.29-1-amd64
Version: 2.6.29-3
Severity: critical

Today was the normal crondate for mdadm to run a check on my 2 raid 1
devices.
Problem, when I woke up this morning I found very bad stuff on my
terminals.

The check was stuck at 2% according to /proc/mdstat. I tried to run it
again, but that caused the second backtrace you can see below.

Now, I cannot even check the RAID status since "cat /proc/mdstat" hangs.

% strace  cat /proc/mdstat
[...]
open("/proc/mdstat", O_RDONLY)          = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, 

-- Package-specific info:
** Version:
Linux version 2.6.29-1-amd64 (Debian 2.6.29-2) (waldi@debian.org) (gcc version 4.3.3 (Debian 4.3.3-5) ) #1 SMP Sat Apr 4 16:54:07 UTC 2009

** Command line:
root=/dev/mapper/system-root ro vga=791 splash

** Tainted: P D (129)

** Kernel log:
[1404264.039924] md: data-check of RAID array md0
[1404264.039927] md: minimum _guaranteed_  speed: 1000 KB/sec/disk.
[1404264.039930] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for data-check.
[1404264.039934] md: using 128k window, over a total of 48064 blocks.
[1404264.042298] general protection fault: 0000 [#1] SMP 
[1404264.042302] last sysfs file: /sys/devices/virtual/block/md1/md/sync_action
[1404264.042304] CPU 0 
[1404264.042306] Modules linked in: rfcomm l2cap bluetooth nvidia(P) ipv6 acpi_cpufreq cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_conservative nfs lockd nfs_acl auth_rpcgss sunrpc coretemp w83627ehf hwmon_vid firewire_sbp2 loop snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device i2c_i801 snd soundcore snd_page_alloc i2c_core pcspkr serio_raw evdev button ext3 jbd mbcache dm_mirror dm_region_hash dm_log dm_snapshot dm_mod raid1 md_mod hid_logitech ff_memless usbhid hid sd_mod crc_t10dif ide_cd_mod cdrom ata_generic uhci_hcd ide_pci_generic ata_piix firewire_ohci firewire_core crc_itu_t ahci atl1 mii libata jmicron ide_core scsi_mod ehci_hcd intel_agp thermal processor fan thermal_sys
[1404264.042363] Pid: 32532, comm: md0_resync Tainted: P           2.6.29-1-amd64 #1 P5K
[1404264.042365] RIP: 0010:[<ffffffff8029810a>]  [<ffffffff8029810a>] put_page+0xb/0xbb
[1404264.042371] RSP: 0000:ffff88008bf67be0  EFLAGS: 00010202
[1404264.042374] RAX: ffff88008c488680 RBX: 0000000000000000 RCX: 0000000000000002
[1404264.042376] RDX: 0000000000000006 RSI: 0000000000000000 RDI: 01003531204f544f
[1404264.042378] RBP: 01003531204f544f R08: 0000000000000008 R09: ffff880028101080
[1404264.042380] R10: 0000000000000002 R11: 0000000000000002 R12: ffff88009af747c0
[1404264.042383] R13: ffff88013bda2c20 R14: 0000000000011200 R15: ffff88013b956c00
[1404264.042385] FS:  0000000000000000(0000) GS:ffffffff806c1000(0000) knlGS:0000000000000000
[1404264.042388] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[1404264.042390] CR2: 00007f7a97d694f8 CR3: 00000000b2bdc000 CR4: 00000000000006e0
[1404264.042392] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[1404264.042394] DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
[1404264.042397] Process md0_resync (pid: 32532, threadinfo ffff88008bf66000, task ffff880096127730)
[1404264.042399] Stack:
[1404264.042400]  0000000000000000 0000000000000010 ffff88009af747c0 ffff88013bda2c20
[1404264.042404]  0000000000011200 ffffffffa016bcbd ffff88008c2de7c8 ffff8800b2103240
[1404264.042408]  ffff88008bf67e7c 0000000000011210 ffff88008bf67c60 ffff88008bf67c78
[1404264.042412] Call Trace:
[1404264.042415]  [<ffffffffa016bcbd>] ? r1buf_pool_alloc+0x121/0x16f [raid1]
[1404264.042421]  [<ffffffff80291724>] ? mempool_alloc+0x3f/0xf5
[1404264.042425]  [<ffffffff8047a8f9>] ? _spin_lock_irq+0xd/0xf
[1404264.042430]  [<ffffffffa016b54c>] ? raise_barrier+0x179/0x18f [raid1]
[1404264.042434]  [<ffffffff8023e601>] ? try_to_wake_up+0x1b0/0x1c2
[1404264.042439]  [<ffffffffa0044d68>] ? scsi_request_fn+0x41b/0x4e9 [scsi_mod]
[1404264.042457]  [<ffffffffa016bf14>] ? sync_request+0x195/0x519 [raid1]
[1404264.042462]  [<ffffffffa0155e5e>] ? is_mddev_idle+0xa3/0xf5 [md_mod]
[1404264.042472]  [<ffffffffa0156480>] ? md_do_sync+0x5d0/0x9bb [md_mod]
[1404264.042480]  [<ffffffffa0156ce8>] ? md_thread+0xe5/0x103 [md_mod]
[1404264.042488]  [<ffffffff8023750c>] ? __wake_up_common+0x44/0x73
[1404264.042492]  [<ffffffffa0156c03>] ? md_thread+0x0/0x103 [md_mod]
[1404264.042499]  [<ffffffffa0156c03>] ? md_thread+0x0/0x103 [md_mod]
[1404264.042507]  [<ffffffff80256cd1>] ? kthread+0x47/0x73
[1404264.042510]  [<ffffffff8021231a>] ? child_rip+0xa/0x20
[1404264.042514]  [<ffffffff803197db>] ? cap_capable+0x0/0x1c
[1404264.042518]  [<ffffffff80256c8a>] ? kthread+0x0/0x73
[1404264.042521]  [<ffffffff80212310>] ? child_rip+0x0/0x20
[1404264.042523] Code: fe ff ff f0 80 23 fb eb 09 80 e1 04 75 04 f0 80 0b 04 5b c3 48 c7 c7 c4 7e 29 80 e9 5d c2 fb ff 41 56 41 55 41 54 55 48 89 fd 53 <48> 8b 07 f6 c4 60 74 2d f6 c4 40 74 04 48 8b 6f 10 48 8d 45 08 
[1404264.042552] RIP  [<ffffffff8029810a>] put_page+0xb/0xbb
[1404264.042556]  RSP <ffff88008bf67be0>
[1404264.042558] ---[ end trace 68cadf7f004fcdc7 ]---
[1404264.066775] md: delaying data-check of md1 until md0 has finished (they share one or more physical units)
[1433318.387870] ------------[ cut here ]------------
[1433318.387874] kernel BUG at /build/buildd/linux-2.6-2.6.29/debian/build/source_amd64_none/include/linux/cred.h:206!
[1433318.387877] invalid opcode: 0000 [#2] SMP 
[1433318.387880] last sysfs file: /sys/devices/virtual/block/md0/md/sync_action
[1433318.387882] CPU 0 
[1433318.387884] Modules linked in: rfcomm l2cap bluetooth nvidia(P) ipv6 acpi_cpufreq cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_conservative nfs lockd nfs_acl auth_rpcgss sunrpc coretemp w83627ehf hwmon_vid firewire_sbp2 loop snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device i2c_i801 snd soundcore snd_page_alloc i2c_core pcspkr serio_raw evdev button ext3 jbd mbcache dm_mirror dm_region_hash dm_log dm_snapshot dm_mod raid1 md_mod hid_logitech ff_memless usbhid hid sd_mod crc_t10dif ide_cd_mod cdrom ata_generic uhci_hcd ide_pci_generic ata_piix firewire_ohci firewire_core crc_itu_t ahci atl1 mii libata jmicron ide_core scsi_mod ehci_hcd intel_agp thermal processor fan thermal_sys
[1433318.387941] Pid: 7819, comm: checkarray Tainted: P      D    2.6.29-1-amd64 #1 P5K
[1433318.387943] RIP: 0010:[<ffffffff8024272c>]  [<ffffffff8024272c>] put_cred+0x6/0x1a
[1433318.387950] RSP: 0018:ffff88013cc75e20  EFLAGS: 00010246
[1433318.387952] RAX: 0000000000000000 RBX: ffff880096127730 RCX: 00051798716528c4
[1433318.387955] RDX: 00000000004f8ad2 RSI: 0000000000000296 RDI: ffff8800b3509780
[1433318.387957] RBP: ffff880096127730 R08: ffff88013b0f1cd4 R09: ffffffffa016fe50
[1433318.387960] R10: 00000000000007f2 R11: ffffffff803197db R12: ffff880096127740
[1433318.387962] R13: ffffffffa0164cc0 R14: 0000000000000005 R15: ffff88011365c000
[1433318.387965] FS:  00007fcf55d5b6f0(0000) GS:ffffffff806c1000(0000) knlGS:0000000000000000
[1433318.387967] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[1433318.387969] CR2: 00007fcf55d7e7c5 CR3: 000000013b0ee000 CR4: 00000000000006e0
[1433318.387972] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[1433318.387974] DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
[1433318.387977] Process checkarray (pid: 7819, threadinfo ffff88013cc74000, task ffff88013c656400)
[1433318.387979] Stack:
[1433318.387980]  ffffffff80244632 ffff88009ac7da40 ffffffff80256d75 ffff88009ac7da40
[1433318.387984]  0000000000000005 ffff88013bca6840 ffffffffa01568c1 ffff88013bca6800
[1433318.387988]  ffffffffa015696d 0000000000000005 0000000000000000 ffff88013bca6800
[1433318.387992] Call Trace:
[1433318.387994]  [<ffffffff80244632>] ? __put_task_struct+0x6d/0xb3
[1433318.387998]  [<ffffffff80256d75>] ? kthread_stop+0x78/0xcb
[1433318.388003]  [<ffffffffa01568c1>] ? md_unregister_thread+0xd/0x16 [md_mod]
[1433318.388013]  [<ffffffffa015696d>] ? action_store+0xa3/0x290 [md_mod]
[1433318.388022]  [<ffffffffa01535f0>] ? md_attr_store+0x77/0x91 [md_mod]
[1433318.388030]  [<ffffffff8030923a>] ? sysfs_write_file+0xd0/0x107
[1433318.388034]  [<ffffffff802bec4f>] ? vfs_write+0xa9/0x102
[1433318.388038]  [<ffffffff8047a98a>] ? _spin_lock+0x5/0x7
[1433318.388043]  [<ffffffff802bed64>] ? sys_write+0x45/0x6e
[1433318.388046]  [<ffffffff802110aa>] ? system_call_fastpath+0x16/0x1b
[1433318.388050] Code: e9 4a 48 01 00 53 48 89 fb 48 8b bf 88 01 00 00 e8 08 0b 16 00 48 89 de 48 8b 3d 90 c6 4b 00 5b e9 a8 65 07 00 8b 07 85 c0 7f 04 <0f> 0b eb fe f0 ff 0f 0f 94 c0 84 c0 74 05 e9 88 8d 01 00 c3 48 
[1433318.388080] RIP  [<ffffffff8024272c>] put_cred+0x6/0x1a
[1433318.388084]  RSP <ffff88013cc75e20>
[1433318.388105] ---[ end trace 68cadf7f004fcdc8 ]---

** Loaded modules:
Module                  Size  Used by
rfcomm                 35104  2 
l2cap                  19968  9 rfcomm
bluetooth              53860  4 rfcomm,l2cap
nvidia               8107496  58 
ipv6                  283792  30 
acpi_cpufreq            8192  0 
cpufreq_powersave       1760  0 
cpufreq_stats           4836  0 
cpufreq_userspace       3700  0 
cpufreq_conservative     7224  0 
nfs                   250544  1 
lockd                  67924  1 nfs
nfs_acl                 3232  1 nfs
auth_rpcgss            40768  1 nfs
sunrpc                194936  11 nfs,lockd,nfs_acl,auth_rpcgss
coretemp                6656  0 
w83627ehf              22032  0 
hwmon_vid               3056  1 w83627ehf
firewire_sbp2          15056  0 
loop                   15292  0 
snd_hda_codec_realtek   243380  1 
snd_hda_intel          26488  1 
snd_hda_codec          69648  2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep               7864  1 snd_hda_codec
snd_pcm_oss            36448  0 
snd_mixer_oss          14576  1 snd_pcm_oss
snd_pcm                78776  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_dummy           3108  0 
snd_seq_oss            29184  0 
snd_seq_midi            6672  0 
snd_rawmidi            22896  1 snd_seq_midi
snd_seq_midi_event      7504  2 snd_seq_oss,snd_seq_midi
snd_seq                50800  7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer              22240  2 snd_pcm,snd_seq
snd_seq_device          7428  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
i2c_i801                9840  0 
snd                    63192  15 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore               7984  1 snd
snd_page_alloc          9776  2 snd_hda_intel,snd_pcm
i2c_core               25168  2 nvidia,i2c_i801
pcspkr                  2768  0 
serio_raw               5780  0 
evdev                  10496  26 
button                  7280  0 
ext3                  122528  6 
jbd                    50232  1 ext3
mbcache                 9140  1 ext3
dm_mirror              14016  0 
dm_region_hash         12656  1 dm_mirror
dm_log                 10116  2 dm_mirror,dm_region_hash
dm_snapshot            17480  0 
dm_mod                 58064  16 dm_mirror,dm_log,dm_snapshot
raid1                  20720  2 
md_mod                 82740  3 raid1
hid_logitech            8368  0 
ff_memless              5288  1 hid_logitech
usbhid                 34176  1 hid_logitech
hid                    40928  2 hid_logitech,usbhid
sd_mod                 32632  6 
crc_t10dif              2064  1 sd_mod
ide_cd_mod             30192  0 
cdrom                  33592  1 ide_cd_mod
ata_generic             5876  0 
uhci_hcd               22384  0 
ide_pci_generic         4628  0 
ata_piix               24196  4 
firewire_ohci          21988  0 
firewire_core          39748  2 firewire_sbp2,firewire_ohci
crc_itu_t               2288  1 firewire_core
ahci                   33680  0 
atl1                   30744  0 
mii                     5568  1 atl1
libata                172700  3 ata_generic,ata_piix,ahci
jmicron                 2896  0 
ide_core              108788  3 ide_cd_mod,ide_pci_generic,jmicron
scsi_mod              158880  3 firewire_sbp2,sd_mod,libata
ehci_hcd               33916  0 
intel_agp              28240  0 
thermal                18864  0 
processor              45400  2 acpi_cpufreq,thermal
fan                     5304  0 
thermal_sys            13104  3 thermal,processor,fan

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller [8086:29c0] (rev 02)
	Subsystem: ASUSTeK Computer Inc. Device [1043:8276]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR+ INTx-
	Latency: 0
	Capabilities: <access denied>

00:01.0 PCI bridge [0604]: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port [8086:29c1] (rev 02) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 32 bytes
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000b000-0000bfff
	Memory behind bridge: f6000000-f9dfffff
	Prefetchable memory behind bridge: 00000000c0000000-00000000cfffffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport-driver

00:1a.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [8086:2937] (rev 02) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 16
	Region 4: I/O ports at a800 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1a.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 [8086:2938] (rev 02) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 21
	Region 4: I/O ports at a880 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1a.2 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 [8086:2939] (rev 02) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 18
	Region 4: I/O ports at ac00 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1a.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 [8086:293c] (rev 02) (prog-if 20 [EHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 18
	Region 0: Memory at f5fffc00 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 02)
	Subsystem: ASUSTeK Computer Inc. Device [1043:829f]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 32 bytes
	Interrupt: pin A routed to IRQ 22
	Region 0: Memory at f5ff8000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: HDA Intel

00:1c.0 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 [8086:2940] (rev 02) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 32 bytes
	Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: fa000000-feafffff
	Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport-driver

00:1c.4 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 [8086:2948] (rev 02) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 32 bytes
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	I/O behind bridge: 0000c000-0000cfff
	Memory behind bridge: f9f00000-f9ffffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport-driver

00:1c.5 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 [8086:294a] (rev 02) (prog-if 00 [Normal decode])
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 32 bytes
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	Memory behind bridge: f9e00000-f9efffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport-driver

00:1d.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 [8086:2934] (rev 02) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 23
	Region 4: I/O ports at a080 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1d.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 [8086:2935] (rev 02) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 19
	Region 4: I/O ports at a400 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1d.2 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 [8086:2936] (rev 02) (prog-if 00 [UHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 18
	Region 4: I/O ports at a480 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1d.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 [8086:293a] (rev 02) (prog-if 20 [EHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 23
	Region 0: Memory at f5fff800 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev 92) (prog-if 01 [Subtractive decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Bus: primary=00, secondary=05, subordinate=05, sec-latency=32
	I/O behind bridge: 0000e000-0000efff
	Memory behind bridge: feb00000-febfffff
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR+
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

00:1f.0 ISA bridge [0601]: Intel Corporation 82801IB (ICH9) LPC Interface Controller [8086:2918] (rev 02)
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>

00:1f.2 IDE interface [0101]: Intel Corporation 82801IB (ICH9) 2 port SATA IDE Controller [8086:2921] (rev 02) (prog-if 8f [Master SecP SecO PriP PriO])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 22
	Region 0: I/O ports at 9000 [size=8]
	Region 1: I/O ports at 8c00 [size=4]
	Region 2: I/O ports at 8880 [size=8]
	Region 3: I/O ports at 8800 [size=4]
	Region 4: I/O ports at 8480 [size=16]
	Region 5: I/O ports at 8400 [size=16]
	Capabilities: <access denied>
	Kernel driver in use: ata_piix

00:1f.3 SMBus [0c05]: Intel Corporation 82801I (ICH9 Family) SMBus Controller [8086:2930] (rev 02)
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin C routed to IRQ 18
	Region 0: Memory at f5fff400 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at 0400 [size=32]
	Kernel driver in use: i801_smbus

00:1f.5 IDE interface [0101]: Intel Corporation 82801I (ICH9 Family) 2 port SATA IDE Controller [8086:2926] (rev 02) (prog-if 85 [Master SecO PriO])
	Subsystem: ASUSTeK Computer Inc. Device [1043:8277]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 22
	Region 0: I/O ports at a000 [size=8]
	Region 1: I/O ports at 9c00 [size=4]
	Region 2: I/O ports at 9880 [size=8]
	Region 3: I/O ports at 9800 [size=4]
	Region 4: I/O ports at 9480 [size=16]
	Region 5: I/O ports at 9400 [size=16]
	Capabilities: <access denied>
	Kernel driver in use: ata_piix

01:00.0 VGA compatible controller [0300]: nVidia Corporation GeForce 8400 GS [10de:0422] (rev a1) (prog-if 00 [VGA controller])
	Subsystem: XFX Pine Group Inc. Device [1682:2308]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at f8000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
	Region 3: Memory at f6000000 (64-bit, non-prefetchable) [size=32M]
	Region 5: I/O ports at bc00 [disabled] [size=128]
	[virtual] Expansion ROM at f9de0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: nvidia

02:00.0 Ethernet controller [0200]: Attansic Technology Corp. L1 Gigabit Ethernet Adapter [1969:1048] (rev b0)
	Subsystem: ASUSTeK Computer Inc. P5KPL-VM Motherboard [1043:8226]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 32 bytes
	Interrupt: pin A routed to IRQ 28
	Region 0: Memory at f9ec0000 (64-bit, non-prefetchable) [size=256K]
	Expansion ROM at f9ea0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: atl1

03:00.0 SATA controller [0106]: JMicron Technologies, Inc. 20360/20363 Serial ATA Controller [197b:2363] (rev 03) (prog-if 01 [AHCI 1.0])
	Subsystem: ASUSTeK Computer Inc. Device [1043:824f]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 32 bytes
	Interrupt: pin A routed to IRQ 16
	Region 5: Memory at f9ffe000 (32-bit, non-prefetchable) [size=8K]
	Expansion ROM at f9fe0000 [disabled] [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

03:00.1 IDE interface [0101]: JMicron Technologies, Inc. 20360/20363 Serial ATA Controller [197b:2363] (rev 03) (prog-if 85 [Master SecO PriO])
	Subsystem: ASUSTeK Computer Inc. Device [1043:824f]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 17
	Region 0: I/O ports at cc00 [size=8]
	Region 1: I/O ports at c880 [size=4]
	Region 2: I/O ports at c800 [size=8]
	Region 3: I/O ports at c480 [size=4]
	Region 4: I/O ports at c400 [size=16]
	Capabilities: <access denied>
	Kernel driver in use: JMicron IDE

04:00.0 VGA compatible controller [0300]: nVidia Corporation GeForce 8400 GS [10de:0404] (rev a1) (prog-if 00 [VGA controller])
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Region 3: Memory at fa000000 (64-bit, non-prefetchable) [size=32M]
	Region 5: I/O ports at dc00 [disabled] [size=128]
	[virtual] Expansion ROM at feae0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: nvidia

05:03.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. VT6306 Fire II IEEE 1394 OHCI Link Layer Controller [1106:3044] (rev c0) (prog-if 10 [OHCI])
	Subsystem: ASUSTeK Computer Inc. Device [1043:81fe]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64 (8000ns max), Cache Line Size: 32 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at febff800 (32-bit, non-prefetchable) [size=2K]
	Region 1: I/O ports at ec00 [size=128]
	Capabilities: <access denied>
	Kernel driver in use: firewire_ohci



-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.29-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.29-1-amd64 depends on:
ii  debconf [debconf-2.0]         1.5.26     Debian configuration management sy
ii  initramfs-tools [linux-initra 0.93.2     tools for generating an initramfs
ii  module-init-tools             3.7-pre9-1 tools for managing Linux kernel mo

linux-image-2.6.29-1-amd64 recommends no packages.

Versions of packages linux-image-2.6.29-1-amd64 suggests:
ii  grub                          0.97-53    GRand Unified Bootloader (Legacy v
pn  linux-doc-2.6.29              <none>     (no description available)

-- debconf information:
  linux-image-2.6.29-1-amd64/preinst/overwriting-modules-2.6.29-1-amd64: true
  shared/kernel-image/really-run-bootloader: true
  linux-image-2.6.29-1-amd64/preinst/failed-to-move-modules-2.6.29-1-amd64:
  linux-image-2.6.29-1-amd64/postinst/bootloader-test-error-2.6.29-1-amd64:
  linux-image-2.6.29-1-amd64/postinst/old-dir-initrd-link-2.6.29-1-amd64: true
  linux-image-2.6.29-1-amd64/prerm/removing-running-kernel-2.6.29-1-amd64: true
  linux-image-2.6.29-1-amd64/preinst/lilo-has-ramdisk:
  linux-image-2.6.29-1-amd64/postinst/create-kimage-link-2.6.29-1-amd64: true
  linux-image-2.6.29-1-amd64/preinst/initrd-2.6.29-1-amd64:
  linux-image-2.6.29-1-amd64/preinst/elilo-initrd-2.6.29-1-amd64: true
  linux-image-2.6.29-1-amd64/postinst/kimage-is-a-directory:
  linux-image-2.6.29-1-amd64/postinst/old-initrd-link-2.6.29-1-amd64: true
  linux-image-2.6.29-1-amd64/postinst/depmod-error-2.6.29-1-amd64: false
  linux-image-2.6.29-1-amd64/postinst/depmod-error-initrd-2.6.29-1-amd64: false
  linux-image-2.6.29-1-amd64/preinst/abort-install-2.6.29-1-amd64:
  linux-image-2.6.29-1-amd64/preinst/abort-overwrite-2.6.29-1-amd64:
  linux-image-2.6.29-1-amd64/postinst/bootloader-error-2.6.29-1-amd64:
  linux-image-2.6.29-1-amd64/prerm/would-invalidate-boot-loader-2.6.29-1-amd64: true
  linux-image-2.6.29-1-amd64/postinst/old-system-map-link-2.6.29-1-amd64: true
  linux-image-2.6.29-1-amd64/preinst/lilo-initrd-2.6.29-1-amd64: true
  linux-image-2.6.29-1-amd64/preinst/bootloader-initrd-2.6.29-1-amd64: true

-- 
Julien Danjou
// ᐰ <julien@danjou.info>   http://julien.danjou.info
// 9A0D 5FD9 EB42 22F6 8974  C95C A462 B51E C2FE E5CD
// Don't give up.

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--- End Message ---

--- Begin Message ---

To: Julien Danjou <acid@debian.org>, 526737-done@bugs.debian.org

Subject: Re: Bug#526737: md: RAID 1 check makes kernel almost panic

From: martin f krafft <madduck@debian.org>

Date: Sun, 3 May 2009 10:19:29 +0200

Message-id: <20090503081929.GC11342@piper.oerlikon.madduck.net>

In-reply-to: <[🔎] 20090503073135.GA9196@abydos.adm.naquadah.org>

References: <[🔎] 20090503073135.GA9196@abydos.adm.naquadah.org>
also sprach Julien Danjou <acid@debian.org> [2009.05.03.0931 +0200]:
> The check was stuck at 2% according to /proc/mdstat. I tried to
> run it again, but that caused the second backtrace you can see
> below.

Sounds like memory corruption or another hardware issue to me. Not
a bug, I've sync'd many dozens of arrays, levels 1,5,6,10, with
2.6.26 and 2.6.29, with mdadm 2.6.[789] and 3.0, and I've never seen
anything like it.

-- 
 .''`.   martin f. krafft <madduck@d.o>      Related projects:
: :'  :  proud Debian developer               http://debiansystem.info
`. `'`   http://people.debian.org/~madduck    http://vcs-pkg.org
  `-  Debian - when you have better things to do than fixing systems
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Reply to:

Follow-Ups:
- Bug#526737: marked as done (md: RAID 1 check makes kernel almost panic)
  - From: Bastian Blank <waldi@debian.org>

References:
- Bug#526737: md: RAID 1 check makes kernel almost panic
  - From: Julien Danjou <acid@debian.org>

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