Public bug reported:
I am running a xen/dom0 setup for a long time now. Every once in a while
(only since precise 3.x kernel) the following panic is triggered usually
after a task switch (alt-tab) out of Dom0 with compiz on the stack of
the crashing CPU.
I am opening this bug with just the oops screen, but have configured
kexec/kdump to capture a dump on requirement when it happens again.
Googling xen_set_pte+0x36 shows a buch of similar issues, but I was not
sure if any did 100% match this signature.
Aug 21 13:07:58 UbuntuPC kernel: [496887.217437] BUG: unable to handle kernel
paging request at ffff8800cdedebc0
Aug 21 13:07:58 UbuntuPC kernel: [496887.217835] IP: [<ffffffff81008f86>]
xen_set_pte+0x36/0x1f0
Aug 21 13:07:58 UbuntuPC kernel: [496887.218154] PGD 1c06067 PUD f3f067 PMD
faf067 PTE 80100000cdede065
Aug 21 13:07:58 UbuntuPC kernel: [496887.218506] Oops: 0003 [#1] SMP
Aug 21 13:07:58 UbuntuPC kernel: [496887.218687] CPU 2
Aug 21 13:07:58 UbuntuPC kernel: [496887.218797] Modules linked in:
nls_iso8859_1 nls_cp437 vfat fat ip6table_filter ip6_tables xt_physdev
iptable_filter ip_tables x_tables xen_gntdev xen_netback xen_blkback xen_evtchn
xenfs bnep rfcomm parport_pc ppdev snd_hda_codec_hdmi snd_hda_codec_realtek
bridge stp snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi
snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd btusb
soundcore bluetooth psmouse snd_page_alloc mei(C) serio_raw dm_multipath
mac_hid binfmt_misc ext2 sbs sbshc coretemp lp parport usbhid hid dm_crypt uas
usb_storage raid10 raid456 async_pq async_xor async_memcpy async_raid6_recov
raid6_pq async_tx raid1 multipath linear dm_raid45 xor dm_mirror dm_region_hash
dm_log btrfs zlib_deflate libcrc32c raid0 mxm_wmi pata_marvell e1000e radeon
wmi ttm drm_kms_helper drm i2c_algo_bit zram(C)
Aug 21 13:07:58 UbuntuPC kernel: [496887.223025]
Aug 21 13:07:58 UbuntuPC kernel: [496887.223107] Pid: 1867, comm: Xorg Tainted:
G C 3.2.0-29-generic #46-Ubuntu /DP67BG
Aug 21 13:07:58 UbuntuPC kernel: [496887.223671] RIP: e030:[<ffffffff81008f86>]
[<ffffffff81008f86>] xen_set_pte+0x36/0x1f0
Aug 21 13:07:58 UbuntuPC kernel: [496887.224126] RSP: e02b:ffff8803c701d4b8
EFLAGS: 00010297
Aug 21 13:07:58 UbuntuPC kernel: [496887.224425] RAX: 0000000000000000 RBX:
ffff8800cdedebc0 RCX: 0000000000000000
Aug 21 13:07:58 UbuntuPC kernel: [496887.224829] RDX: 0000000000000000 RSI:
801000016a58b077 RDI: ffff8800cdedebc0
Aug 21 13:07:58 UbuntuPC kernel: [496887.225232] RBP: ffff8803c701d508 R08:
8010000239d78067 R09: ffff880000000000
Aug 21 13:07:58 UbuntuPC kernel: [496887.225637] R10: 0000000000000001 R11:
0000000000000000 R12: 801000016a58b077
Aug 21 13:07:58 UbuntuPC kernel: [496887.226042] R13: ffff880239d78000 R14:
8010000000000077 R15: 0000000000239d78
Aug 21 13:07:58 UbuntuPC kernel: [496887.226448] FS: 00007faea3fd6880(0000)
GS:ffff8803e9080000(0000) knlGS:0000000000000000
Aug 21 13:07:58 UbuntuPC kernel: [496887.226907] CS: e033 DS: 0000 ES: 0000
CR0: 000000008005003b
Aug 21 13:07:58 UbuntuPC kernel: [496887.227230] CR2: ffff8800cdedebc0 CR3:
00000003c994e000 CR4: 0000000000002660
Aug 21 13:07:58 UbuntuPC kernel: [496887.227634] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Aug 21 13:07:58 UbuntuPC kernel: [496887.228038] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Aug 21 13:07:58 UbuntuPC kernel: [496887.228441] Process Xorg (pid: 1867,
threadinfo ffff8803c701c000, task ffff8803c271ae00)
Aug 21 13:07:58 UbuntuPC kernel: [496887.228900] Stack:
Aug 21 13:07:58 UbuntuPC kernel: [496887.229011] ffff8Aug 21 13:39:21 UbuntuPC
kernel: imklog 5.8.6, log source = /proc/kmsg started.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-generic 3.2.0.29.31
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: rk 3334 F.... pulseaudio
/dev/snd/controlC1: rk 3334 F.... pulseaudio
/dev/snd/controlC0: rk 3334 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not
found.
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf0420000 irq 341'
Mixer name : 'Realtek ALC892'
Components : 'HDA:10ec0892,80862007,00100302'
Controls : 37
Simple ctrls : 18
Card1.Amixer.info:
Card hw:1 'Generic'/'HD-Audio Generic at 0xf0320000 irq 342'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100200'
Controls : 6
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Card2.Amixer.info:
Card hw:2 'Generic_1'/'HD-Audio Generic at 0xf0220000 irq 343'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100200'
Controls : 6
Simple ctrls : 1
Card2.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Tue Aug 21 14:37:41 2012
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
0 radeondrmfb
1 radeondrmfb
ProcKernelCmdLine: placeholder root=/dev/mapper/rootfs ro irqpoll nopat vga=773
quiet splash
RelatedPackageVersions:
linux-restricted-modules-3.2.0-29-generic N/A
linux-backports-modules-3.2.0-29-generic N/A
linux-firmware 1.79
RfKill:
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
SourcePackage: linux
StagingDrivers: mei zram
UpgradeStatus: Upgraded to precise on 2012-03-05 (168 days ago)
dmi.bios.date: 08/18/2011
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BGP6710J.86A.2053.2011.0818.2322
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DP67BG
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG10491-306
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnIntelCorp.:bvrBGP6710J.86A.2053.2011.0818.2322:bd08/18/2011:svn:pn:pvr:rvnIntelCorporation:rnDP67BG:rvrAAG10491-306:cvn:ct3:cvr:
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise running-unity staging
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https://bugs.launchpad.net/bugs/1039524
Title:
Dom0 panic @ xen_set_pte+0x36/0x1f0
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