I've found, that kernel crashes only when I'm using wifi connection.
I was using inspiron 1520 for 3 days without problems over ethernet.
Also I've caught such kernel messages:
----------------------------------------------------------------
Jan 8 20:19:16 afbook kernel: [ 8579.164696] general protection fault: 0000
[#1] SMP
Jan 8 20:19:16 afbook kernel: [ 8579.164978] last sysfs file:
/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0/charge_full
Jan 8 20:19:16 afbook kernel: [ 8579.165111] CPU 1
Jan 8 20:19:16 afbook kernel: [ 8579.165198] Modules linked in: nfs lockd
fscache nfs_acl auth_rpcgss sunrpc michael_mic arc4 rfcomm sco bnep binfmt_misc
l2cap vboxnetadp vboxnetflt vboxdrv cryptd aes_x86_64 aes_generic parport_pc
ppdev usbhid hid btusb bluetooth snd_hda_codec_idt snd_hda_intel snd_hda_codec
b44 snd_hwdep ssb mii lib80211_crypt_tkip snd_pcm snd_seq_midi wl(P)
snd_rawmidi snd_seq_midi_event snd_seq joydev nvidia(P) snd_timer
snd_seq_device intel_agp psmouse serio_raw coretemp video output uvcvideo r852
videodev sm_common nand nand_ids nand_ecc mtd snd soundcore snd_page_alloc
lib80211 lp dell_wmi_aio dell_laptop parport dell_wmi dcdbas v4l1_compat
v4l2_compat_ioctl32 firewire_ohci sdhci_pci ahci firewire_core sdhci led_class
crc_itu_t libahci
Jan 8 20:19:16 afbook kernel: [ 8579.171855]
Jan 8 20:19:16 afbook kernel: [ 8579.171955] Pid: 7715, comm: ksysguardd
Tainted: P 2.6.35-24-generic #42-Ubuntu 0UW306/Inspiron 1520
Jan 8 20:19:16 afbook kernel: [ 8579.172072] RIP: 0010:[<ffffffff81497af4>]
[<ffffffff81497af4>] dev_get_stats+0x14/0x50
Jan 8 20:19:16 afbook kernel: [ 8579.172263] RSP: 0018:ffff8800b60d1d78
EFLAGS: 00010286
Jan 8 20:19:16 afbook kernel: [ 8579.172361] RAX: 388d55959aaa3e40 RBX:
ffff880037b91480 RCX: ffffffff81d11e10
Jan 8 20:19:16 afbook kernel: [ 8579.172462] RDX: ffff8800b60d1e58 RSI:
ffff880050c14000 RDI: ffff880050c14000
Jan 8 20:19:16 afbook kernel: [ 8579.172513] RBP: ffff8800b60d1d88 R08:
000000000000fffd R09: 0000ffff000a6c0a
Jan 8 20:19:16 afbook kernel: [ 8579.172513] R10: 0000000000000001 R11:
0000000000000008 R12: ffff880050c14000
Jan 8 20:19:16 afbook kernel: [ 8579.172513] R13: ffff880050c14000 R14:
00000000000002b9 R15: ffff8800b60d1e58
Jan 8 20:19:16 afbook kernel: [ 8579.172513] FS: 00007f8832a36700(0000)
GS:ffff880001f00000(0000) knlGS:0000000000000000
Jan 8 20:19:16 afbook kernel: [ 8579.172513] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jan 8 20:19:16 afbook kernel: [ 8579.172513] CR2: 00007f8832a5e000 CR3:
00000000682be000 CR4: 00000000000006e0
Jan 8 20:19:16 afbook kernel: [ 8579.172513] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Jan 8 20:19:16 afbook kernel: [ 8579.172513] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Jan 8 20:19:16 afbook kernel: [ 8579.172513] Process ksysguardd (pid: 7715,
threadinfo ffff8800b60d0000, task ffff8800872544a0)
Jan 8 20:19:16 afbook kernel: [ 8579.172513] Stack:
Jan 8 20:19:16 afbook kernel: [ 8579.172513] 0000000000000001
ffff880037b91480 ffff8800b60d1e18 ffffffff81498688
Jan 8 20:19:16 afbook kernel: [ 8579.172513] <0> 0000000000000000
0000000000000000 0000000000000000 0000000000000000
Jan 8 20:19:16 afbook kernel: [ 8579.172513] <0> 0000000000000000
0000000000000000 0000000000000000 0000000000000000
Jan 8 20:19:16 afbook kernel: [ 8579.172513] Call Trace:
Jan 8 20:19:16 afbook kernel: [ 8579.172513] [<ffffffff81498688>]
dev_seq_show+0x28/0x120
Jan 8 20:19:16 afbook kernel: [ 8579.172513] [<ffffffff81172457>]
seq_read+0x277/0x410
Jan 8 20:19:16 afbook kernel: [ 8579.172513] [<ffffffff811721e0>] ?
seq_read+0x0/0x410
Jan 8 20:19:16 afbook kernel: [ 8579.172513] [<ffffffff811ab111>]
proc_reg_read+0x81/0xc0
Jan 8 20:19:16 afbook kernel: [ 8579.172513] [<ffffffff81153525>]
vfs_read+0xb5/0x1a0
Jan 8 20:19:16 afbook kernel: [ 8579.172513] [<ffffffff81153661>]
sys_read+0x51/0x80
Jan 8 20:19:16 afbook kernel: [ 8579.172513] [<ffffffff8100a0f2>]
system_call_fastpath+0x16/0x1b
Jan 8 20:19:16 afbook kernel: [ 8579.172513] Code: 85 ff 75 e8 4d 85 c0 75 e3
c9 c3 eb 0a 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 48 83 ec 10 0f 1f 44 00
00 48 8b 87 60 01 00 00 <48> 8b 80 80 00 00 00 48 85 c0 74 08 ff d0 c9 c3 eb 02
90 90 48
Jan 8 20:19:16 afbook kernel: [ 8579.172513] RIP [<ffffffff81497af4>]
dev_get_stats+0x14/0x50
Jan 8 20:19:16 afbook kernel: [ 8579.172513] RSP <ffff8800b60d1d78>
Jan 8 20:19:16 afbook kernel: [ 8579.180530] ---[ end trace 4e5d49d3fc33f69d
]---
Jan 8 20:19:16 afbook kernel: [ 8579.280888] general protection fault: 0000
[#2] SMP
Jan 8 20:19:16 afbook kernel: [ 8579.281119] last sysfs file:
/sys/devices/platform/coretemp.1/temp1_label
Jan 8 20:19:16 afbook kernel: [ 8579.281214] CPU 1
Jan 8 20:19:16 afbook kernel: [ 8579.281287] Modules linked in: nfs lockd
fscache nfs_acl auth_rpcgss sunrpc michael_mic arc4 rfcomm sco bnep binfmt_misc
l2cap vboxnetadp vboxnetflt vboxdrv cryptd aes_x86_64 aes_generic parport_pc
ppdev usbhid hid btusb bluetooth snd_hda_codec_idt snd_hda_intel snd_hda_codec
b44 snd_hwdep ssb mii lib80211_crypt_tkip snd_pcm snd_seq_midi wl(P)
snd_rawmidi snd_seq_midi_event snd_seq joydev nvidia(P) snd_timer
snd_seq_device intel_agp psmouse serio_raw coretemp video output uvcvideo r852
videodev sm_common nand nand_ids nand_ecc mtd snd soundcore snd_page_alloc
lib80211 lp dell_wmi_aio dell_laptop parport dell_wmi dcdbas v4l1_compat
v4l2_compat_ioctl32 firewire_ohci sdhci_pci ahci firewire_core sdhci led_class
crc_itu_t libahci
Jan 8 20:19:16 afbook kernel: [ 8579.287024]
Jan 8 20:19:16 afbook kernel: [ 8579.287114] Pid: 16720, comm: ksysguardd
Tainted: P D 2.6.35-24-generic #42-Ubuntu 0UW306/Inspiron 1520
Jan 8 20:19:16 afbook kernel: [ 8579.287250] RIP: 0010:[<ffffffff81497af4>]
[<ffffffff81497af4>] dev_get_stats+0x14/0x50
Jan 8 20:19:16 afbook kernel: [ 8579.287470] RSP: 0018:ffff8800a1db3d78
EFLAGS: 00010286
Jan 8 20:19:16 afbook kernel: [ 8579.287563] RAX: 388d55959aaa3e40 RBX:
ffff880037b91600 RCX: ffffffff81d11e10
Jan 8 20:19:16 afbook kernel: [ 8579.287659] RDX: ffff8800a1db3e58 RSI:
ffff880050c14000 RDI: ffff880050c14000
Jan 8 20:19:16 afbook kernel: [ 8579.287755] RBP: ffff8800a1db3d88 R08:
000000000000fffd R09: 0000ffff000a6c0a
Jan 8 20:19:16 afbook kernel: [ 8579.287851] R10: 0000000000000001 R11:
0000000000000008 R12: ffff880050c14000
Jan 8 20:19:16 afbook kernel: [ 8579.287947] R13: ffff880050c14000 R14:
00000000000002b9 R15: ffff8800a1db3e58
Jan 8 20:19:16 afbook kernel: [ 8579.288044] FS: 00007fe2079ef700(0000)
GS:ffff880001f00000(0000) knlGS:0000000000000000
Jan 8 20:19:16 afbook kernel: [ 8579.288156] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jan 8 20:19:16 afbook kernel: [ 8579.288251] CR2: 000000000040f3c0 CR3:
00000000eee5c000 CR4: 00000000000006e0
Jan 8 20:19:16 afbook kernel: [ 8579.288346] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Jan 8 20:19:16 afbook kernel: [ 8579.288442] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Jan 8 20:19:16 afbook kernel: [ 8579.288503] Process ksysguardd (pid: 16720,
threadinfo ffff8800a1db2000, task ffff880050e916e0)
Jan 8 20:19:16 afbook kernel: [ 8579.288503] Stack:
Jan 8 20:19:16 afbook kernel: [ 8579.288503] 0000000000000001
ffff880037b91600 ffff8800a1db3e18 ffffffff81498688
Jan 8 20:19:16 afbook kernel: [ 8579.288503] <0> 0000000000000000
0000000000000000 0000000000000000 0000000000000000
Jan 8 20:19:16 afbook kernel: [ 8579.288503] <0> 0000000000000000
0000000000000000 0000000000000000 0000000000000000
Jan 8 20:19:16 afbook kernel: [ 8579.288503] Call Trace:
Jan 8 20:19:16 afbook kernel: [ 8579.288503] [<ffffffff81498688>]
dev_seq_show+0x28/0x120
Jan 8 20:19:16 afbook kernel: [ 8579.288503] [<ffffffff81172457>]
seq_read+0x277/0x410
Jan 8 20:19:16 afbook kernel: [ 8579.288503] [<ffffffff811721e0>] ?
seq_read+0x0/0x410
Jan 8 20:19:16 afbook kernel: [ 8579.288503] [<ffffffff811ab111>]
proc_reg_read+0x81/0xc0
Jan 8 20:19:16 afbook kernel: [ 8579.288503] [<ffffffff81153525>]
vfs_read+0xb5/0x1a0
Jan 8 20:19:16 afbook kernel: [ 8579.288503] [<ffffffff81153661>]
sys_read+0x51/0x80
Jan 8 20:19:16 afbook kernel: [ 8579.288503] [<ffffffff8100a0f2>]
system_call_fastpath+0x16/0x1b
Jan 8 20:19:16 afbook kernel: [ 8579.288503] Code: 85 ff 75 e8 4d 85 c0 75 e3
c9 c3 eb 0a 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 48 83 ec 10 0f 1f 44 00
00 48 8b 87 60 01 00 00 <48> 8b 80 80 00 00 00 48 85 c0 74 08 ff d0 c9 c3 eb 02
90 90 48
Jan 8 20:19:16 afbook kernel: [ 8579.288503] RIP [<ffffffff81497af4>]
dev_get_stats+0x14/0x50
Jan 8 20:19:16 afbook kernel: [ 8579.288503] RSP <ffff8800a1db3d78>
Jan 8 20:19:16 afbook kernel: [ 8579.296944] ---[ end trace 4e5d49d3fc33f69e
]---
------------------------------------------------------------------
System was unusable. Between messages of #GP there were messages from nfs:
------------------------------------------------------------------
Jan 8 20:23:07 afbook kernel: [ 8810.002727] nfs: server 192.168.1.10 not
responding, timed out
------------------------------------------------------------------
To reproduce I was watching videos using ethernet connection over nfs.
Than I enabled wifi, connected to network, mounted nfs share and started
smplayer to watch video, switched to console and watched for logs.
My WiFi controller is "Broadcom Corporation BCM4311 802.11b/g WLAN (rev
01)" and since lucid I'm using 'wl' driver from 'bcmwl' package.
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https://bugs.launchpad.net/bugs/695158
Title:
Random hangs with default maverick kernel on Dell Inspiron 1520 with 4Gb RAM
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