Hi In the latest months (it started around nov/dec 2006) I experienced some random kernel panics. After some time I managed to work out what was happening.
Feb 23 18:38:54 [kernel] kernel BUG at net/core/skbuff.c:94! Feb 23 18:38:54 [kernel] CPU 0 Feb 23 18:38:54 [kernel] Modules linked in: rlocate cpufreq_performance snd_seq snd_pcm_oss snd_mixer_oss loop tun asus_acpi backlight af_packet powernow_k8 freq_table ndiswrapper snd_usb_audio snd_usb_lib snd_rawmidi snd_seq_device snd_hwdep 8139cp nvidia(P) i2c_core 8139too mii sdhci mmc_core k8temp hwmon snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc ehci_hcd ohci_hcd pcmcia Feb 23 18:38:54 [kernel] Pid: 7893, comm: dhclient Tainted: P 2.6.20-gentoo-ginger #1 Feb 23 18:38:54 [kernel] RIP: 0010:[<ffffffff803de68c>] [<ffffffff803de68c>] skb_over_panic+0x5c/0x70 Feb 23 18:38:54 [kernel] RSP: 0018:ffff810013fa7c78 EFLAGS: 00010292 Feb 23 18:38:54 [kernel] RAX: 000000000000009b RBX: ffff810013a51182 RCX: ffffffff805028c0 Feb 23 18:38:54 [kernel] RDX: ffffffff805028c0 RSI: 0000000000000001 RDI: ffff81001e2a9860 Feb 23 18:38:54 [kernel] RBP: ffff810013fa7f28 R08: 0000000000000000 R09: 000000000000000d Feb 23 18:38:54 [kernel] R10: 000000000000000e R11: 0000000000000006 R12: ffff81001faf4000 Feb 23 18:38:54 [kernel] R13: 0000000000000156 R14: ffff81001f42ecc0 R15: ffff8100157b1000 Feb 23 18:38:54 [kernel] FS: 00002b3ded0046f0(0000) GS:ffffffff80531000(0000) knlGS:0000000000000000 Feb 23 18:38:54 [kernel] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Feb 23 18:38:54 [kernel] CR2: 00002b3dece5359e CR3: 0000000013ebc000 CR4: 00000000000006e0 Feb 23 18:38:54 [kernel] Process dhclient (pid: 7893, threadinfo ffff810013fa6000, task ffff81001e201140) Feb 23 18:38:54 [kernel] Stack: ffff810013a51002 ffff810013a512d8 ffffffff804b1b1e ffffffff8888ced6 Feb 23 18:38:54 [kernel] 0000810013fa7d88 ffff810012fa55c0 0000000000000000 ffff810012ef2880 Feb 23 18:38:54 [kernel] ffff810013fa7e68 00007fffbddfb590 0000000000000010 ffffffff803d942b Feb 23 18:38:54 [kernel] Call Trace: Feb 23 18:38:54 [kernel] [<ffffffff8888ced6>] :af_packet:packet_sendmsg_spkt+0x186/0x220 Feb 23 18:38:54 [kernel] [<ffffffff803d942b>] sock_sendmsg+0xcb/0xf0 Feb 23 18:38:54 [kernel] [<ffffffff80282954>] mntput_no_expire+0x24/0xa0 Feb 23 18:38:54 [kernel] [<ffffffff8023ce80>] autoremove_wake_function+0x0/0x30 Feb 23 18:38:54 [kernel] [<ffffffff80276da8>] do_path_lookup+0x178/0x1a0 Feb 23 18:38:54 [kernel] [<ffffffff8027e8cf>] dput+0x2f/0x160 Feb 23 18:38:54 [kernel] [<ffffffff80282954>] mntput_no_expire+0x24/0xa0 Feb 23 18:38:54 [kernel] [<ffffffff803d84b5>] move_addr_to_kernel+0x25/0x40 Feb 23 18:38:54 [kernel] [<ffffffff803d98c2>] sys_sendto+0x142/0x1a0 Feb 23 18:38:54 [kernel] [<ffffffff80209e3e>] system_call+0x7e/0x83 Feb 23 18:38:54 [kernel] Code: 0f 0b 66 90 eb fe 66 66 66 90 66 66 66 90 66 66 90 66 66 90 Feb 23 18:38:54 [kernel] RIP [<ffffffff803de68c>] skb_over_panic+0x5c/0x70 Feb 23 18:38:54 [kernel] RSP <ffff810013fa7c78> Feb 23 18:40:07 [kernel] kernel BUG at net/core/skbuff.c:112! Feb 23 18:40:07 [kernel] CPU 0 Feb 23 18:40:07 [kernel] Modules linked in: rlocate cpufreq_performance snd_seq snd_pcm_oss snd_mixer_oss loop tun asus_acpi backlight af_packet powernow_k8 freq_table ndiswrapper snd_usb_audio snd_usb_lib snd_rawmidi snd_seq_device snd_hwdep 8139cp nvidia(P) i2c_core 8139too mii sdhci mmc_core k8temp hwmon snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc ehci_hcd ohci_hcd pcmcia Feb 23 18:40:07 [kernel] Pid: 8475, comm: arping Tainted: P 2.6.20-gentoo-ginger #1 Feb 23 18:40:07 [kernel] RIP: 0010:[<ffffffff803de61c>] [<ffffffff803de61c>] skb_under_panic+0x5c/0x70 Feb 23 18:40:07 [kernel] RSP: 0018:ffff81000d199c08 EFLAGS: 00010296 Feb 23 18:40:07 [kernel] RAX: 000000000000009a RBX: ffff81001e32d880 RCX: ffffffff805028c0 Feb 23 18:40:07 [kernel] RDX: ffffffff805028c0 RSI: 0000000000000001 RDI: ffff81001e2a9860 Feb 23 18:40:07 [kernel] RBP: ffff81001b3af9f2 R08: 0000000000000000 R09: 00000000ffffffff Feb 23 18:40:07 [kernel] R10: 0000000000000000 R11: 00000000ffffffff R12: 0000000000000000 Feb 23 18:40:07 [kernel] R13: ffff81001ef82800 R14: 0000000000000806 R15: 000000000000001c Feb 23 18:40:07 [kernel] FS: 00002b648aaa1b00(0000) GS:ffffffff80531000(0000) knlGS:0000000000000000 Feb 23 18:40:07 [kernel] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Feb 23 18:40:07 [kernel] CR2: 00002b648a8ea0a0 CR3: 000000000d193000 CR4: 00000000000006e0 Feb 23 18:40:07 [kernel] Process arping (pid: 8475, threadinfo ffff81000d198000, task ffff81001d6247e0) Feb 23 18:40:07 [kernel] Stack: ffff81001b3afa10 ffff81001b3afa50 ffffffff804b1b1e ffffffff803f1985 Feb 23 18:40:07 [kernel] ffff81000d199e74 ffff81001ef82800 ffff81000d199ee8 ffff81000f8ccd00 Feb 23 18:40:07 [kernel] ffff81001e32d880 000000000000001c ffff81000f1d4000 ffffffff8888be62 Feb 23 18:40:07 [kernel] Call Trace: Feb 23 18:40:07 [kernel] [<ffffffff803f1985>] eth_header+0x65/0x120 Feb 23 18:40:07 [kernel] [<ffffffff8888be62>] :af_packet:packet_sendmsg+0x182/0x2c0 Feb 23 18:40:07 [kernel] [<ffffffff803d942b>] sock_sendmsg+0xcb/0xf0 Feb 23 18:40:07 [kernel] [<ffffffff8023ce80>] autoremove_wake_function+0x0/0x30 Feb 23 18:40:07 [kernel] [<ffffffff80250207>] filemap_nopage+0x177/0x330 Feb 23 18:40:07 [kernel] [<ffffffff8025a5ce>] __handle_mm_fault+0x3fe/0x9d0 Feb 23 18:40:07 [kernel] [<ffffffff803d84b5>] move_addr_to_kernel+0x25/0x40 Feb 23 18:40:07 [kernel] [<ffffffff803d98c2>] sys_sendto+0x142/0x1a0 Feb 23 18:40:07 [kernel] [<ffffffff8025ec7d>] do_mmap_pgoff+0x67d/0x800 Feb 23 18:40:07 [kernel] [<ffffffff80209e3e>] system_call+0x7e/0x83 Feb 23 18:40:07 [kernel] Code: 0f 0b 66 90 eb fe 66 66 66 90 66 66 66 90 66 66 90 66 66 90 Feb 23 18:40:07 [kernel] RIP [<ffffffff803de61c>] skb_under_panic+0x5c/0x70 Feb 23 18:40:07 [kernel] RSP <ffff81000d199c08> I found this patch http://lkml.org/lkml/2006/11/29/335 and actually seems to fix the problem. I'm running the latest 2.6.20 with the following patch since 1 week and I'm not having panics anymore. I hope this helps. Maxxer ps please CC me as I'm not in the list. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
