Public bug reported:
My System (XUbuntu 12.04.2 LTS) crashes some times producing error
messages like this in syslog
Apr 16 16:50:19 ThinkStation kernel: [11198.385264] BUG: unable to handle
kernel NULL pointer dereference at 0000000000000008
Apr 16 16:50:19 ThinkStation kernel: [11198.385273] IP: [<ffffffffa034b291>]
_ZN20CMMHeap_SystemMemory8pushPoolEP7CMMPool+0x11/0x40 [fglrx]
Apr 16 16:50:19 ThinkStation kernel: [11198.385343] PGD 0
Apr 16 16:50:19 ThinkStation kernel: [11198.385345] Oops: 0002 [#1] SMP
Apr 16 16:50:19 ThinkStation kernel: [11198.385349] CPU 1
Apr 16 16:50:19 ThinkStation kernel: [11198.385350] Modules linked in:
ip6table_filter ip6_tables iptable_filter ip_tables x_tables vesafb parport_pc
rfcomm bnep ppdev binfmt_misc arc4 snd_hda_codec_conexant snd_hda_codec_hdmi
snd_hda_intel snd_hda_codec snd_hwdep rtl8192ce rtl8192c_common rtlwifi snd_pcm
thinkpad_acpi uvcvideo snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq
fglrx(P) snd_timer snd_seq_device snd psmouse serio_raw joydev mac_hid k10temp
btusb usbhid nvram lp bluetooth hid videodev parport mac80211 cfg80211 video
soundcore i2c_piix4 v4l2_compat_ioctl32 snd_page_alloc sdhci_pci sdhci r8169
Apr 16 16:50:19 ThinkStation kernel: [11198.385388]
Apr 16 16:50:19 ThinkStation kernel: [11198.385392] Pid: 1176, comm: Xorg
Tainted: P IO 3.2.0-40-generic #64-Ubuntu LENOVO 120032G/120032G
Apr 16 16:50:19 ThinkStation kernel: [11198.385397] RIP:
0010:[<ffffffffa034b291>] [<ffffffffa034b291>]
_ZN20CMMHeap_SystemMemory8pushPoolEP7CMMPool+0x11/0x40 [fglrx]
Apr 16 16:50:19 ThinkStation kernel: [11198.385442] RSP: 0018:ffff8801ea0959c0
EFLAGS: 00010297
Apr 16 16:50:19 ThinkStation kernel: [11198.385444] RAX: ffff8801ea034008 RBX:
ffffc90005a79150 RCX: 0000000000000000
Apr 16 16:50:19 ThinkStation kernel: [11198.385447] RDX: 0000000000000000 RSI:
ffffc90005a79018 RDI: ffff8801ea034e30
Apr 16 16:50:19 ThinkStation kernel: [11198.385449] RBP: 0000000000000002 R08:
ffffffffa037beb0 R09: ffff8801ea034008
Apr 16 16:50:19 ThinkStation kernel: [11198.385451] R10: ffffc90005a79090 R11:
ffff8801ea034008 R12: ffff8801ea034e30
Apr 16 16:50:19 ThinkStation kernel: [11198.385454] R13: 0000000000000040 R14:
0000000000000000 R15: 0000000000000000
Apr 16 16:50:19 ThinkStation kernel: [11198.385457] FS: 00007fb33172e880(0000)
GS:ffff88021ec80000(0000) knlGS:0000000000000000
Apr 16 16:50:19 ThinkStation kernel: [11198.385459] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Apr 16 16:50:19 ThinkStation kernel: [11198.385461] CR2: 0000000000000008 CR3:
00000001eaf66000 CR4: 00000000000006e0
Apr 16 16:50:19 ThinkStation kernel: [11198.385464] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Apr 16 16:50:19 ThinkStation kernel: [11198.385466] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Apr 16 16:50:19 ThinkStation kernel: [11198.385469] Process Xorg (pid: 1176,
threadinfo ffff8801ea094000, task ffff8801eb4bae00)
Apr 16 16:50:19 ThinkStation kernel: [11198.385471] Stack:
Apr 16 16:50:19 ThinkStation kernel: [11198.385473] ffffffffa034acb6
0000000000000000 ffff8801ea034e30 ffff8801ea034ec8
Apr 16 16:50:19 ThinkStation kernel: [11198.385477] 0000000000000200
0000000000000000 ffffffffa02e3c55 0000000000080000
Apr 16 16:50:19 ThinkStation kernel: [11198.385481] ffff8801ea034e30
ffffffffa037beb0 ffffffffa02e3fb8 ffff8801ea095a88
Apr 16 16:50:19 ThinkStation kernel: [11198.385485] Call Trace:
Apr 16 16:50:19 ThinkStation kernel: [11198.385531] [<ffffffffa034acb6>] ?
_ZN7CMMHeap15createPoolSpaceI21CMMPoolAsicAccessibleEEbj+0xb6/0xc0 [fglrx]
Apr 16 16:50:19 ThinkStation kernel: [11198.385589] [<ffffffffa02e3c55>] ?
_ZN20CMMHeap_SystemMemory10obtainPoolEv+0x85/0xc0 [fglrx]
Apr 16 16:50:19 ThinkStation kernel: [11198.385644] [<ffffffffa02e3fb8>] ?
_ZN16CMMHeap_PAGEABLE10expandHeapEm+0x18/0xb0 [fglrx]
It seems that this error occurs during playing flash videos in Chromium
Best Regards
Simeon
** Affects: ubuntu
Importance: Undecided
Status: New
** Package changed: acpi (Ubuntu) => ubuntu
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https://bugs.launchpad.net/bugs/1169652
Title:
unable to handle kernel NULL pointer dereference at 0000000000000008
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