https://bugzilla.novell.com/show_bug.cgi?id=669770
https://bugzilla.novell.com/show_bug.cgi?id=669770#c2
--- Comment #2 from John ffitch 2011-02-08 09:20:54 UTC ---
This problem has recurred a numbe rof times since the first report
/var/log/messages sasy....
Feb 5 12:49:34 cage kernel: [ 939.544745] BUG: unable to handle kernel NULL
pointer dereference at 0000000000000d90
Feb 5 12:49:34 cage kernel: [ 939.544750] IP: [<ffffffff810719d8>]
bit_waitqueue+0xa8/0xd0
Feb 5 12:49:34 cage kernel: [ 939.544757] PGD 0
Feb 5 12:49:34 cage kernel: [ 939.544759] Oops: 0000 [#1] PREEMPT SMP
Feb 5 12:49:34 cage kernel: [ 939.544761] last sysfs file:
/sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map
Feb 5 12:49:34 cage kernel: [ 939.544764] CPU 2
Feb 5 12:49:34 cage kernel: [ 939.544765] Modules linked in: autofs4
vboxnetadp vboxnetflt vboxdrv snd_pcm_oss snd_mixer_oss snd_seq nfsd exportfs
edd nfs lockd fscache nfs_acl auth_rpcgss sunrpc mperf nls_utf8 nls_cp437 vfat
fat loop dm_mod snd_ice1712 snd_ice17xx_ak4xxx snd_ak4xxx_adda snd_cs8427
snd_hda_codec_atihdmi snd_ac97_codec snd_hda_codec_via ac97_bus snd_i2c
snd_hda_intel snd_mpu401_uart snd_hda_codec firewire_ohci firewire_core
crc_itu_t snd_hwdep snd_rawmidi snd_pcm snd_seq_device snd_timer ohci1394 snd
sr_mod soundcore edac_core wmi atl1e pcspkr i2c_piix4 snd_page_alloc shpchp
cdrom joydev ieee1394 asus_atk0110 k10temp edac_mce_amd floppy pci_hotplug sg
button ext4 jbd2 crc16 radeon ttm drm_kms_helper sd_mod drm i2c_algo_bit fan
processor ata_generic pata_atiixp ahci libata scsi_mod thermal thermal_sys
Feb 5 12:49:34 cage kernel: [ 939.544804]
Feb 5 12:49:34 cage kernel: [ 939.544806] Pid: 75, comm: kswapd0 Not tainted
2.6.34.7-0.7-desktop #1 M4A78T-E/System Product Name
Feb 5 12:49:34 cage kernel: [ 939.544808] RIP: 0010:[<ffffffff810719d8>]
[<ffffffff810719d8>] bit_waitqueue+0xa8/0xd0
Feb 5 12:49:34 cage kernel: [ 939.544813] RSP: 0018:ffff88011c8c5c40 EFLAGS:
00010206
Feb 5 12:49:34 cage kernel: [ 939.544814] RAX: ffe2002fb083ae03 RBX:
0000000000000100 RCX: 0000000000000040
Feb 5 12:49:34 cage kernel: [ 939.544816] RDX: 0000000000000700 RSI:
00000000000001fe RDI: 0600000000000000
Feb 5 12:49:34 cage kernel: [ 939.544818] RBP: e9cb3e20f877ae03 R08:
6000000000000000 R09: ff233e20f877ae03
Feb 5 12:49:34 cage kernel: [ 939.544820] R10: 0000000000000000 R11:
0000000000000000 R12: 000000000000002b
Feb 5 12:49:34 cage kernel: [ 939.544822] R13: ffff88011c8c5ca0 R14:
0000000000000080 R15: 0000000000000000
Feb 5 12:49:34 cage kernel: [ 939.544824] FS: 00007f89676b3700(0000)
GS:ffff880001f00000(0000) knlGS:0000000000000000
Feb 5 12:49:34 cage kernel: [ 939.544826] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Feb 5 12:49:34 cage kernel: [ 939.544828] CR2: 0000000000000d90 CR3:
000000011e6f3000 CR4: 00000000000006e0
Feb 5 12:49:34 cage kernel: [ 939.544830] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Feb 5 12:49:34 cage kernel: [ 939.544832] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Feb 5 12:49:34 cage kernel: [ 939.544834] Process kswapd0 (pid: 75,
threadinfo ffff88011c8c4000, task ffff88011c8c2140)
Feb 5 12:49:34 cage kernel: [ 939.544835] Stack:
Feb 5 12:49:34 cage kernel: [ 939.544836] ffff88011c8c5ca0 ffff8800bec20eb8
0000000000000003 ffffffff81071a48
Feb 5 12:49:34 cage kernel: [ 939.544839] <0> 0000000000000000
ffff8800bec20ca8 ffff88011c8c5ca0 ffffffff8113bc9e
Feb 5 12:49:34 cage kernel: [ 939.544841] <0> ffff8800bec5fca8
0000000000000080 0000000000000080 ffffffff8113c1e7
Feb 5 12:49:34 cage kernel: [ 939.544844] Call Trace:
Feb 5 12:49:34 cage kernel: [ 939.544852] [<ffffffff81071a48>]
wake_up_bit+0x18/0x40
Feb 5 12:49:34 cage kernel: [ 939.544857] [<ffffffff8113bc9e>]
dispose_list+0x8e/0x120
Feb 5 12:49:34 cage kernel: [ 939.544862] [<ffffffff8113c1e7>]
prune_icache+0x177/0x270
Feb 5 12:49:34 cage kernel: [ 939.544866] [<ffffffff8113c322>]
shrink_icache_memory+0x42/0x50
Feb 5 12:49:34 cage kernel: [ 939.544870] [<ffffffff810e63eb>]
shrink_slab+0xfb/0x160
Feb 5 12:49:34 cage kernel: [ 939.544874] [<ffffffff810e88d9>]
balance_pgdat+0x369/0x590
Feb 5 12:49:34 cage kernel: [ 939.544877] [<ffffffff810e8c22>]
kswapd+0x122/0x220
Feb 5 12:49:34 cage kernel: [ 939.544881] [<ffffffff810714ae>]
kthread+0x8e/0xa0
Feb 5 12:49:34 cage kernel: [ 939.544885] [<ffffffff81003df4>]
kernel_thread_helper+0x4/0x10
Feb 5 12:49:34 cage kernel: [ 939.544888] Code: 89 c7 49 c1 e0 3d 48 29 da 48
03 14 f5 00 86 b1 81 48 89 c5 48 c1 e7 39 4c 01 c1 48 c1 e5 3f 48 29 f9 48 8d
2c 29 b9 40 00 00 00 <2b> 8a 90 06 00 00 48 d3 ed 48 8d 44 6d 00 48 c1 e0 03 48
03 82
Feb 5 12:49:34 cage kernel: [ 939.544907] RIP [<ffffffff810719d8>]
bit_waitqueue+0xa8/0xd0
Feb 5 12:49:34 cage kernel: [ 939.544910] RSP <ffff88011c8c5c40>
Feb 5 12:49:34 cage kernel: [ 939.544911] CR2: 0000000000000d90
Feb 5 12:49:34 cage kernel: [ 939.544913] ---[ end trace 04431bf6ff0c171d
]---
Feb 5 12:56:03 cage kernel: [ 1328.512744] BUG: unable to handle kernel NULL
pointer dereference at 0000000000000d90
Feb 5 12:56:03 cage kernel: [ 1328.512749] IP: [<ffffffff810719d8>]
bit_waitqueue+0xa8/0xd0
Feb 5 12:56:03 cage kernel: [ 1328.512755] PGD 93de7067 PUD 7843e067 PMD 0
Feb 5 12:56:03 cage kernel: [ 1328.512758] Oops: 0000 [#2] PREEMPT SMP
Feb 5 12:56:03 cage kernel: [ 1328.512761] last sysfs file:
/sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map
Feb 5 12:56:03 cage kernel: [ 1328.512764] CPU 3
Feb 5 12:56:03 cage kernel: [ 1328.512765] Modules linked in: autofs4
vboxnetadp vboxnetflt vboxdrv snd_pcm_oss snd_mixer_oss snd_seq nfsd exportfs
edd nfs lockd fscache nfs_acl auth_rpcgss sunrpc mperf nls_utf8 nls_cp437 vfat
fat loop dm_mod snd_ice1712 snd_ice17xx_ak4xxx snd_ak4xxx_adda snd_cs8427
snd_hda_codec_atihdmi snd_ac97_codec snd_hda_codec_via ac97_bus snd_i2c
snd_hda_intel snd_mpu401_uart snd_hda_codec firewire_ohci firewire_core
crc_itu_t snd_hwdep snd_rawmidi snd_pcm snd_seq_device snd_timer ohci1394 snd
sr_mod soundcore edac_core wmi atl1e pcspkr i2c_piix4 snd_page_alloc shpchp
cdrom joydev ieee1394 asus_atk0110 k10temp edac_mce_amd floppy pci_hotplug sg
button ext4 jbd2 crc16 radeon ttm drm_kms_helper sd_mod drm i2c_algo_bit fan
processor ata_generic pata_atiixp ahci libata scsi_mod thermal thermal_sys
Feb 5 12:56:03 cage kernel: [ 1328.512803]
Feb 5 12:56:03 cage kernel: [ 1328.512806] Pid: 5717, comm: rsync Tainted: G
D 2.6.34.7-0.7-desktop #1 M4A78T-E/System Product Name
Feb 5 12:56:03 cage kernel: [ 1328.512808] RIP: 0010:[<ffffffff810719d8>]
[<ffffffff810719d8>] bit_waitqueue+0xa8/0xd0
Feb 5 12:56:03 cage kernel: [ 1328.512812] RSP: 0018:ffff88002cc07958 EFLAGS:
00010206
Feb 5 12:56:03 cage kernel: [ 1328.512813] RAX: ffe2002fb082ba03 RBX:
0000000000000100 RCX: 0000000000000040
Feb 5 12:56:03 cage kernel: [ 1328.512815] RDX: 0000000000000700 RSI:
00000000000001fe RDI: 0600000000000000
Feb 5 12:56:03 cage kernel: [ 1328.512816] RBP: 89cb3e24c876ba03 R08:
6000000000000000 R09: ff233e24c876ba03
Feb 5 12:56:03 cage kernel: [ 1328.512818] R10: 0000000000000000 R11:
0000000000000000 R12: 000000000000005c
Feb 5 12:56:03 cage kernel: [ 1328.512820] R13: ffff88002cc079b8 R14:
0000000000000080 R15: 0000000000000000
Feb 5 12:56:03 cage kernel: [ 1328.512822] FS: 00007f06447c5700(0000)
GS:ffff880001f80000(0000) knlGS:0000000000000000
Feb 5 12:56:03 cage kernel: [ 1328.512824] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Feb 5 12:56:03 cage kernel: [ 1328.512825] CR2: 0000000000000d90 CR3:
0000000093f7e000 CR4: 00000000000006e0
Feb 5 12:56:03 cage kernel: [ 1328.512827] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Feb 5 12:56:03 cage kernel: [ 1328.512829] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Feb 5 12:56:03 cage kernel: [ 1328.512831] Process rsync (pid: 5717,
threadinfo ffff88002cc06000, task ffff880005bb6780)
Feb 5 12:56:03 cage kernel: [ 1328.512832] Stack:
Feb 5 12:56:03 cage kernel: [ 1328.512833] ffff88002cc079b8 ffff8800bec20ae8
0000000000000003 ffffffff81071a48
Feb 5 12:56:03 cage kernel: [ 1328.512836] <0> 0000000000000000
ffff8800bec208d8 ffff88002cc079b8 ffffffff8113bc9e
Feb 5 12:56:03 cage kernel: [ 1328.512839] <0> ffff88003a7fa4c8
0000000000000080 0000000000000080 ffffffff8113c1e7
Feb 5 12:56:03 cage kernel: [ 1328.512842] Call Trace:
Feb 5 12:56:03 cage kernel: [ 1328.512850] [<ffffffff81071a48>]
wake_up_bit+0x18/0x40
Feb 5 12:56:03 cage kernel: [ 1328.512855] [<ffffffff8113bc9e>]
dispose_list+0x8e/0x120
Feb 5 12:56:03 cage kernel: [ 1328.512859] [<ffffffff8113c1e7>]
prune_icache+0x177/0x270
Feb 5 12:56:03 cage kernel: [ 1328.512863] [<ffffffff8113c322>]
shrink_icache_memory+0x42/0x50
Feb 5 12:56:03 cage kernel: [ 1328.512867] [<ffffffff810e63eb>]
shrink_slab+0xfb/0x160
Feb 5 12:56:03 cage kernel: [ 1328.512871] [<ffffffff810e82de>]
do_try_to_free_pages+0x18e/0x2e0
Feb 5 12:56:03 cage kernel: [ 1328.512875] [<ffffffff810e855e>]
try_to_free_pages+0x6e/0x80
Feb 5 12:56:03 cage kernel: [ 1328.512879] [<ffffffff810e088b>]
__alloc_pages_nodemask+0x43b/0x6b0
Feb 5 12:56:03 cage kernel: [ 1328.512884] [<ffffffff810e3954>]
__do_page_cache_readahead+0x114/0x290
Feb 5 12:56:03 cage kernel: [ 1328.512888] [<ffffffff810e3c4c>]
ra_submit+0x1c/0x30
Feb 5 12:56:03 cage kernel: [ 1328.512891] [<ffffffff810d99b8>]
do_generic_file_read.clone.0+0x2a8/0x440
Feb 5 12:56:03 cage kernel: [ 1328.512895] [<ffffffff810db344>]
generic_file_aio_read+0xb4/0x1c0
Feb 5 12:56:03 cage kernel: [ 1328.512899] [<ffffffff8112461f>]
do_sync_read+0xbf/0x100
Feb 5 12:56:03 cage kernel: [ 1328.512903] [<ffffffff81124e03>]
vfs_read+0xb3/0x190
Feb 5 12:56:03 cage kernel: [ 1328.512906] [<ffffffff81124f2e>]
sys_read+0x4e/0x90
Feb 5 12:56:03 cage kernel: [ 1328.512910] [<ffffffff81002ffb>]
system_call_fastpath+0x16/0x1b
Feb 5 12:56:03 cage kernel: [ 1328.512915] [<00007f0643cfe3e0>]
0x7f0643cfe3e0
Feb 5 12:56:03 cage kernel: [ 1328.512917] Code: 89 c7 49 c1 e0 3d 48 29 da 48
03 14 f5 00 86 b1 81 48 89 c5 48 c1 e7 39 4c 01 c1 48 c1 e5 3f 48 29 f9 48 8d
2c 29 b9 40 00 00 00 <2b> 8a 90 06 00 00 48 d3 ed 48 8d 44 6d 00 48 c1 e0 03 48
03 82
Feb 5 12:56:03 cage kernel: [ 1328.512935] RIP [<ffffffff810719d8>]
bit_waitqueue+0xa8/0xd0
Feb 5 12:56:03 cage kernel: [ 1328.512938] RSP <ffff88002cc07958>
Feb 5 12:56:03 cage kernel: [ 1328.512939] CR2: 0000000000000d90
Feb 5 12:56:03 cage kernel: [ 1328.512942] ---[ end trace 04431bf6ff0c171e
]---
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