[Bug 32072] bugs in k8 SMP kernel

[John Moser]

Public bug reported:
https://launchpad.net/malone/bugs/32072

Affects: linux-meta linux-amd64-k8-smp (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
I don't know what caused it but ifconfig is hanging.

Here's dmesg output:

[149146.888377] Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
[149146.888383] <ffffffff802a3050>{dst_destroy+80}
[149146.888391] PGD ce5f067 PUD 38e5f067 PMD 0
[149146.888395] Oops: 0002 [1] PREEMPT SMP
[149146.888399] CPU 0
[149146.888401] Modules linked in: nls_utf8 ext2 rfcomm l2cap bluetooth powernow_k8 cpufreq_userspace cpufreq_stats freq_table cpufreq_powersave cpufreq_ondemand cpufreq_conservative video tc1100_wmi sony_acpi pcc_acpi hotkey dev_acpi container button battery ac ipv6 nls_iso8859_1 nls_cp437 vfat fat dm_mod md_mod sr_mod sbp2 parport_pc lp parport af_packet usb_storage rtc pcspkr psmouse serio_raw snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_seq_dummy snd_seq_oss snd_seq_midi snd_seq_midi_event snd_seq snd_emu10k1 snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_ac97_bus i2c_viapro snd_page_alloc snd_util_mem snd_hwdep snd ohci1394 8139cp 8139too mii ieee1394 i2c_core shpchp pci_hotplug soundcore sg tsdev evdev usblp usbhid xfs exportfs ehci_hcd uhci_hcd usbcore ide_generic ide_cd cdrom generic via82cxxx sd_mod sata_via libata scsi_mod thermal processor fan capability commoncap vga16fb cfbcopyarea vgastate cfbimgblt cfbfillrect fbcon tileblit font bitblit softcursor
[149146.888447] Pid: 5738, comm: ifconfig Not tainted 2.6.15-14-amd64-k8 #1
[149146.888450] RIP: 0010:[<ffffffff802a3050>] <ffffffff802a3050>{dst_destroy+80}
[149146.888457] RSP: 0018:ffff810009e0fda0  EFLAGS: 00010286
[149146.888461] RAX: 0000000000000000 RBX: ffffffff80396900 RCX: ffff81003b913000
[149146.888465] RDX: ffff81003b913000 RSI: 0000000000000009 RDI: ffffffff80396900
[149146.888469] RBP: ffff81003b913000 R08: ffff81003a3af3c8 R09: 0000000000000001
[149146.888473] R10: ffff81003a3af3cc R11: 0000000000000002 R12: 0000000000000009
[149146.888476] R13: 0000000000000000 R14: 00007fffff88e6c0 R15: ffff810039fb4a40
[149146.888481] FS:  00002aaaaadfb6d0(0000) GS:ffffffff80426800(0000) knlGS:0000000000000000
[149146.888484] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[149146.888487] CR2: 0000000000000000 CR3: 0000000028fc4000 CR4: 00000000000006e0
[149146.888492] Process ifconfig (pid: 5738, threadinfo ffff810009e0e000, task ffff81000cc16920)
[149146.888495] Stack: ffffffff8014be1f ffff81003b913000 0000000000001042 0000000000001003
[149146.888502]        ffffffff8029ea81 ffff81003b913000 ffffffff8029e84e ffff810009e0fe58
[149146.888508]        ffff81003a915610 ffff810009e0fe48
[149146.888512] Call Trace:<ffffffff8014be1f>{notifier_call_chain+31} <ffffffff8029ea81>{dev_close+33}
[149146.888529]        <ffffffff8029e84e>{dev_change_flags+110} <ffffffff802ea9d2>{devinet_ioctl+722}
[149146.888542]        <ffffffff8029424c>{sock_ioctl+588} <ffffffff801a19cf>{do_ioctl+47}
[149146.888571]        <ffffffff801a1ceb>{vfs_ioctl+683} <ffffffff801a1d8c>{sys_ioctl+108}
[149146.888584]        <ffffffff8010fede>{system_call+126}
[149146.888605]
[149146.888606] Code: 00 00 90 ff 4b 70 0f 94 c0 84 c0 74 08 48 89 df e8 5b 31 00
[149146.888615] RIP <ffffffff802a3050>{dst_destroy+80} RSP <ffff810009e0fda0>
[149146.888621] CR2: 0000000000000000
[149146.888623]


And here's uname:
bluefox at icebox:~/misc/trebuchet-1.067$ uname -a
Linux icebox 2.6.15-14-amd64-k8 #1 SMP PREEMPT Wed Jan 25 15:53:16 UTC 2006 x86_64 GNU/Linux