Ubuntu
linux package

segfault on eth kernel mod

Asked by Marco Marinelli

After some minuts, a riceved a segfault on kernel mod, then I can't use network more: a system restart needed.
Ubuntu is 10.04, kernel 2.6.32
This is what i find in dmesg:
[ 554.295052] polkitd[1153]: segfault at 0 ip 0024d7a0 sp bf8acb58 error 4 in libc-2.11.1.so[1da000+153000]
[ 2597.262005] scim-bridge[1557]: segfault at c ip 00b6ee1c sp bfc6e768 error 4 in libscim-1.0.so.8.2.4[b15000+c5000]
[ 2630.810425] scim-bridge[2012]: segfault at c ip 00c26e1c sp bfabba58 error 4 in libscim-1.0.so.8.2.4[bcd000+c5000]
[ 2769.988022] ------------[ cut here ]------------
[ 2769.988047] WARNING: at /build/buildd/linux-2.6.32/net/sched/sch_generic.c:261 dev_watchdog+0x1fe/0x210()
[ 2769.988053] Hardware name: Satellite A60
[ 2769.988058] NETDEV WATCHDOG: eth0 (8139too): transmit queue 0 timed out
[ 2769.988063] Modules linked in: binfmt_misc fbcon tileblit font bitblit softcursor vga16fb vgastate snd_atiixp snd_atiixp_modem snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_seq_dummy snd_pcm snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event pcmcia snd_seq joydev radeon snd_timer snd_seq_device ttm snd yenta_socket drm_kms_helper soundcore rsrc_nonstatic drm pcmcia_core ati_agp snd_page_alloc i2c_piix4 agpgart lp ppdev i2c_algo_bit parport_pc video output shpchp psmouse serio_raw parport irda crc_ccitt 8139too usbhid ohci1394 8139cp hid ieee1394 mii pata_atiixp
[ 2769.988175] Pid: 0, comm: swapper Not tainted 2.6.32-25-generic #43-Ubuntu
[ 2769.988181] Call Trace:
[ 2769.988196] [<c014c6e2>] warn_slowpath_common+0x72/0xa0
[ 2769.988204] [<c04d9c2e>] ? dev_watchdog+0x1fe/0x210
[ 2769.988211] [<c04d9c2e>] ? dev_watchdog+0x1fe/0x210
[ 2769.988218] [<c014c75b>] warn_slowpath_fmt+0x2b/0x30
[ 2769.988225] [<c04d9c2e>] dev_watchdog+0x1fe/0x210
[ 2769.988236] [<c0163c80>] ? insert_work+0x60/0xb0
[ 2769.988246] [<c012a578>] ? default_spin_lock_flags+0x8/0x10
[ 2769.988255] [<c058d24f>] ? _spin_lock_irqsave+0x2f/0x50
[ 2769.988263] [<c0163f46>] ? __queue_work+0x36/0x50
[ 2769.988271] [<c015b92e>] run_timer_softirq+0x13e/0x2c0
[ 2769.988280] [<c0176b34>] ? tick_dev_program_event+0x74/0xd0
[ 2769.988288] [<c04d9a30>] ? dev_watchdog+0x0/0x210
[ 2769.988295] [<c0153358>] __do_softirq+0x98/0x1b0
[ 2769.988303] [<c0176f80>] ? tick_do_update_jiffies64+0x120/0x170
[ 2769.988310] [<c01534b5>] do_softirq+0x45/0x50
[ 2769.988316] [<c0153605>] irq_exit+0x65/0x70
[ 2769.988325] [<c059178c>] smp_apic_timer_interrupt+0x5c/0x8b
[ 2769.988334] [<c0103df1>] apic_timer_interrupt+0x31/0x40
[ 2769.988342] [<c010aaa5>] ? mwait_idle+0x55/0xa0
[ 2769.988348] [<c01021d4>] cpu_idle+0x94/0xd0
[ 2769.988357] [<c05884a3>] start_secondary+0xc6/0xc8
[ 2769.988363] ---[ end trace dd6c8601cddfe613 ]---
[ 2772.988063] eth0: link up, 100Mbps, full-duplex, lpa 0xC1E1
[ 2784.989101] eth0: link up, 100Mbps, full-duplex, lpa 0xC1E1
[ 2796.989061] eth0: link up, 100Mbps, full-duplex, lpa 0xC1E1
[ 2806.948740] scim-bridge[2028]: segfault at c ip 00616e1c sp bfcf7f98 error 4 in libscim-1.0.so.8.2.4[5bd000+c5000]

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marcobra (Marco Braida) (marcobra) said : 		#1

Please tell give use the result of this terminal command...

lsb_release -rd; uname -a

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Marco Marinelli (marco-marinelli) said : 		#2

marco@marco-laptop:~$ lsb_release -rd; uname -a
Description: Ubuntu 10.04.1 LTS
Release: 10.04
Linux marco-laptop 2.6.32-25-generic #43-Ubuntu SMP Wed Sep 1 09:46:39 UTC 2010 i686 GNU/Linux

Revision history for this message
Anil Shashikumar Belur (askb23) said : 		#3

The kernel module won't give segfaults, its the application giving a segfault as the code is possibly buggy accessing a memory segment which it does not have access to. Also this could possibly be caused from the processes polkitd, scim-bridge, due to incompatibility with the version of libc or other dependencies installed (libc-2.11.1.so). Please try to update the packages to check if the issue can be resolved.

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