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Message-ID: <AANLkTimTmPEG-8gDKu7Xj8--LrXsF9oe-afbm0X_QHsX@mail.gmail.com> Date: Sat, 26 Jun 2010 20:47:33 +1000 From: Andrew Hendry <andrew.hendry@...il.com> To: linux-kernel <linux-kernel@...r.kernel.org>, linux-cifs-client@...ts.samba.org Subject: Re: 2.6.34-rc3 BUG: unable to handle kernel NULL pointer dereference at 0000000000000048 cifs_show_options sorry, this should say 2.6.35-rc3 On Sat, Jun 26, 2010 at 8:46 PM, Andrew Hendry <andrew.hendry@...il.com> wrote: > From 2.6.34-rc3 > Can't reliably reproduce, this was once after a resume over a few days > normal use. > The No response for cmds lines are normal as NAS takes a while to spin > up after resume. > System was unstable after message so couldn't collect more state > > [18446744028.633263] r8169 0000:0b:02.0: eth0: link up > [18446744039.623540] eth0: no IPv6 routers present > [18446744041.684522] CIFS VFS: No response for cmd 117 mid 21812 > [18446744041.684561] CIFS VFS: cifs_mount failed w/return code = -11 > [18446744056.674016] CIFS VFS: No response for cmd 114 mid 21813 > [18446744056.674105] CIFS VFS: cifs_mount failed w/return code = -112 > [18446744060.831668] BUG: unable to handle kernel NULL pointer > dereference at 0000000000000048 > [18446744060.831680] IP: [<ffffffffa02982d9>] > cifs_show_options+0xf9/0x480 [cifs] > [18446744060.831699] PGD 2068fe067 PUD 2068fd067 PMD 0 > [18446744060.831710] Oops: 0000 [#1] PREEMPT SMP > [18446744060.831720] last sysfs file: > /sys/devices/system/cpu/sched_smt_power_savings > [18446744060.831729] CPU 4 > [18446744060.831733] Modules linked in: nls_cp437 cifs fbcon tileblit > font bitblit softcursor binfmt_misc kvm_intel kvm snd_hda_codec_via > snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss nouveau > snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi > snd_rawmidi snd_seq_midi_event ttm psmouse snd_seq drm_kms_helper > snd_timer snd_seq_device serio_raw snd drm asus_atk0110 soundcore > snd_page_alloc i2c_algo_bit usbhid hid ahci r8169 mii libahci > pata_jmicron > [18446744060.831821] > [18446744060.831829] Pid: 2206, comm: udisks-daemon Not tainted > 2.6.35-rc3 #6 P7P55D-E PRO/System Product Name > [18446744060.831836] RIP: 0010:[<ffffffffa02982d9>] > [<ffffffffa02982d9>] cifs_show_options+0xf9/0x480 [cifs] > [18446744060.831853] RSP: 0018:ffff880206913dc8 EFLAGS: 00010246 > [18446744060.831860] RAX: 0000000000000000 RBX: ffff880184a7f140 RCX: > 0000000000000006 > [18446744060.831867] RDX: 0000000000000006 RSI: 0000000000001000 RDI: > ffff880232fb0491 > [18446744060.831874] RBP: ffff880206913df8 R08: 000000000000fff8 R09: > 0000000000000004 > [18446744060.831881] R10: 0000000000000000 R11: 0000000000000000 R12: > ffff880231ad7400 > [18446744060.831888] R13: ffff8802324d7400 R14: ffff8802324d6b00 R15: > 0000000000000000 > [18446744060.831896] FS: 00007fdb12ceb7a0(0000) > GS:ffff880001e80000(0000) knlGS:0000000000000000 > [18446744060.831904] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [18446744060.831910] CR2: 0000000000000048 CR3: 00000002068fb000 CR4: > 00000000000006e0 > [18446744060.831917] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [18446744060.831924] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: > 0000000000000400 > [18446744060.831932] Process udisks-daemon (pid: 2206, threadinfo > ffff880206912000, task ffff880236ae1680) > [18446744060.831939] Stack: > [18446744060.831942] ffff880206913df8 0000000000000000 > ffff880184a7f140 ffff880184a7f140 > [18446744060.831954] <0> ffff8802324d6b00 ffff880231ad6400 > ffff880206913e68 ffffffff811575c7 > [18446744060.831966] <0> ffffffff8161b450 0000000000000202 > ffff8802318cac00 ffff88023fa6af00 > [18446744060.831980] Call Trace: > [18446744060.831992] [<ffffffff811575c7>] show_mountinfo+0x237/0x2b0 > [18446744060.832004] [<ffffffff8115bc1f>] seq_read+0x25f/0x3f0 > [18446744060.832015] [<ffffffff8113c9f5>] vfs_read+0xb5/0x180 > [18446744060.832024] [<ffffffff8113de8f>] ? fget_light+0x7f/0xc0 > [18446744060.832033] [<ffffffff8113d331>] sys_read+0x51/0x90 > [18446744060.832045] [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b > [18446744060.832052] Code: 00 48 c7 c6 9a 7e 2c a0 48 89 df 31 c0 e8 > 80 32 ec e0 49 8b 45 28 48 c7 c6 b0 7e 2c a0 4c 8b 78 40 48 89 df 31 > c0 e8 67 32 ec e0 <41> 0f b7 47 48 66 83 f8 02 0f 84 98 01 00 00 66 83 > f8 0a 0f 84 > [18446744060.832164] RIP [<ffffffffa02982d9>] > cifs_show_options+0xf9/0x480 [cifs] > [18446744060.832179] RSP <ffff880206913dc8> > [18446744060.832184] CR2: 0000000000000048 > [18446744060.832190] BUG: unable to handle kernel NULL pointer > dereference at 0000000000000048 > [18446744060.832199] IP: [<ffffffffa02982d9>] > cifs_show_options+0xf9/0x480 [cifs] > [18446744060.832211] ---[ end trace d709801030e1a5a5 ]--- > [18446744060.832217] PGD 233e17067 PUD 233e15067 PMD 0 > [18446744060.832225] Oops: 0000 [#2] PREEMPT SMP > [18446744060.832232] last sysfs file: > /sys/devices/system/cpu/sched_smt_power_savings > [18446744060.832238] CPU 1 > [18446744060.832241] Modules linked in: nls_cp437 cifs fbcon tileblit > font bitblit softcursor binfmt_misc kvm_intel kvm snd_hda_codec_via > snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss nouveau > snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi > snd_rawmidi snd_seq_midi_event ttm psmouse snd_seq drm_kms_helper > snd_timer snd_seq_device serio_raw snd drm asus_atk0110 soundcore > snd_page_alloc i2c_algo_bit usbhid hid ahci r8169 mii libahci > pata_jmicron > [18446744060.832321] > [18446744060.832327] Pid: 1356, comm: hald Tainted: G D > 2.6.35-rc3 #6 P7P55D-E PRO/System Product Name > [18446744060.832334] RIP: 0010:[<ffffffffa02982d9>] > [<ffffffffa02982d9>] cifs_show_options+0xf9/0x480 [cifs] > [18446744060.832348] RSP: 0018:ffff880234ac3de8 EFLAGS: 00010246 > [18446744060.832354] RAX: 0000000000000000 RBX: ffff88020afd0fc0 RCX: > 0000000000000006 > [18446744060.832360] RDX: 0000000000000006 RSI: 0000000000001000 RDI: > ffff880232f7f3e5 > [18446744060.832366] RBP: ffff880234ac3e18 R08: 000000000000fff8 R09: > 0000000000000004 > [18446744060.832372] R10: 0000000000000000 R11: 0000000000000002 R12: > ffff880231ad7400 > [18446744060.832378] R13: ffff8802324d7400 R14: ffff8802324d6b00 R15: > 0000000000000000 > [18446744060.832384] FS: 00007f0b1c325700(0000) > GS:ffff880001e20000(0000) knlGS:0000000000000000 > [18446744060.832390] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [18446744060.832396] CR2: 0000000000000048 CR3: 0000000235641000 CR4: > 00000000000006e0 > [18446744060.832401] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [18446744060.832406] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: > 0000000000000400 > [18446744060.832413] Process hald (pid: 1356, threadinfo > ffff880234ac2000, task ffff880234bc9680) > [18446744060.832419] Stack: > [18446744060.832423] ffff880234ac3e18 ffff88020afd0fc0 > ffff8802324d6b00 ffff8802324d6b60 > [18446744060.832433] <0> ffffffff8161b470 0000000000000000 > ffff880234ac3e68 ffffffff81157752 > [18446744060.832444] <0> ffff8802324d6b00 ffff88023f986000 > ffff880234ac3e68 ffff88020afd0fc0 > [18446744060.832458] Call Trace: > [18446744060.832467] [<ffffffff81157752>] show_vfsmnt+0x112/0x150 > [18446744060.832475] [<ffffffff8115bc1f>] seq_read+0x25f/0x3f0 > [18446744060.832484] [<ffffffff8113c9f5>] vfs_read+0xb5/0x180 > [18446744060.832492] [<ffffffff8113de8f>] ? fget_light+0x7f/0xc0 > [18446744060.832500] [<ffffffff8113d331>] sys_read+0x51/0x90 > [18446744060.832510] [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b > [18446744060.832515] Code: 00 48 c7 c6 9a 7e 2c a0 48 89 df 31 c0 e8 > 80 32 ec e0 49 8b 45 28 48 c7 c6 b0 7e 2c a0 4c 8b 78 40 48 89 df 31 > c0 e8 67 32 ec e0 <41> 0f b7 47 48 66 83 f8 02 0f 84 98 01 00 00 66 83 > f8 0a 0f 84 > [18446744060.832634] RIP [<ffffffffa02982d9>] > cifs_show_options+0xf9/0x480 [cifs] > [18446744060.832647] RSP <ffff880234ac3de8> > [18446744060.832651] CR2: 0000000000000048 > [18446744060.832668] ---[ end trace d709801030e1a5a6 ]--- > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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