Hi,
seit einigen Kernelversionen bekomme ich sporadisch "BUG: unable to
handle kernel NULL pointer dereference at 00000000000000b8". Dies
passiert meist nur beim ersten Start nach dem Update des Kernel. Wenn
das passiert, kann gnome nicht gestartet werden und es hilft nur noch
ein Reset des Rechners. Ein Ausschnitt aus /var/log/messages ist im
Anhang. Mit dem Kernel 3.8.1-201 von Fedora 18 ist mir jedoch noch kein
normaler Start geglückt. Das System ist auf dem aktuellen Stand.
Ich vermute, dass es an der TV-Karte liegt. Ich würde diese jedoch gern
weiterhin nutzen wollen und nur ungern aus dem PC ausbauen wollen.
Hat jemand eine Idee woran das liegen könnte und wie ich das Problem
beseitigen kann?
Viele Grüße
Rico
Mar 4 08:26:45 localhost kernel: [ 22.480746] input: cx88 IR (Hauppauge
Nova-S-Plus as /devices/pci0000:00/0000:00:1e.0/0000:05:00.1/rc/rc0/input13
Mar 4 08:26:45 localhost kernel: [ 22.482299] rc0: cx88 IR (Hauppauge
Nova-S-Plus as /devices/pci0000:00/0000:00:1e.0/0000:05:00.1/rc/rc0
Mar 4 08:26:45 localhost kernel: [ 22.487409] cx88[0]/1: CX88x/0: ALSA
support for cx2388x boards
Mar 4 08:26:45 localhost kernel: [ 22.491860] cx88[0]/0: found at
0000:05:00.0, rev: 5, irq: 20, latency: 32, mmio: 0xe8000000
Mar 4 08:26:45 localhost kernel: [ 22.493050]
Mar 4 08:26:45 localhost kernel: [ 22.493054]
=============================================
Mar 4 08:26:45 localhost kernel: [ 22.493055] [ INFO: possible recursive
locking detected ]
Mar 4 08:26:45 localhost kernel: [ 22.493057] 3.8.1-201.fc18.x86_64.debug #1
Not tainted
Mar 4 08:26:45 localhost kernel: [ 22.493059]
---------------------------------------------
Mar 4 08:26:45 localhost kernel: [ 22.493060] systemd-udevd/385 is trying to
acquire lock:
Mar 4 08:26:45 localhost kernel: [ 22.493063] (hdl->lock){+.+...}, at:
[<ffffffffa0433a7e>] find_ref_lock+0x2e/0x60 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493079]
Mar 4 08:26:45 localhost kernel: [ 22.493079] but task is already holding
lock:
Mar 4 08:26:45 localhost kernel: [ 22.493081] (hdl->lock){+.+...}, at:
[<ffffffffa0436c88>] v4l2_ctrl_add_handler+0x88/0xf0 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493088]
Mar 4 08:26:45 localhost kernel: [ 22.493088] other info that might help us
debug this:
Mar 4 08:26:45 localhost kernel: [ 22.493090] Possible unsafe locking
scenario:
Mar 4 08:26:45 localhost kernel: [ 22.493090]
Mar 4 08:26:45 localhost kernel: [ 22.493092] CPU0
Mar 4 08:26:45 localhost kernel: [ 22.493093] ----
Mar 4 08:26:45 localhost kernel: [ 22.493094] lock(hdl->lock);
Mar 4 08:26:45 localhost kernel: [ 22.493097] lock(hdl->lock);
Mar 4 08:26:45 localhost kernel: [ 22.493099]
Mar 4 08:26:45 localhost kernel: [ 22.493099] *** DEADLOCK ***
Mar 4 08:26:45 localhost kernel: [ 22.493099]
Mar 4 08:26:45 localhost kernel: [ 22.493101] May be due to missing lock
nesting notation
Mar 4 08:26:45 localhost kernel: [ 22.493101]
Mar 4 08:26:45 localhost kernel: [ 22.493103] 3 locks held by
systemd-udevd/385:
Mar 4 08:26:45 localhost kernel: [ 22.493105] #0:
(&__lockdep_no_validate__){......}, at: [<ffffffff8147119b>]
__driver_attach+0x5b/0xb0
Mar 4 08:26:45 localhost kernel: [ 22.493117] #1:
(&__lockdep_no_validate__){......}, at: [<ffffffff814711a9>]
__driver_attach+0x69/0xb0
Mar 4 08:26:45 localhost kernel: [ 22.493123] #2: (hdl->lock){+.+...}, at:
[<ffffffffa0436c88>] v4l2_ctrl_add_handler+0x88/0xf0 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493131]
Mar 4 08:26:45 localhost kernel: [ 22.493131] stack backtrace:
Mar 4 08:26:45 localhost kernel: [ 22.493133] Pid: 385, comm: systemd-udevd
Not tainted 3.8.1-201.fc18.x86_64.debug #1
Mar 4 08:26:45 localhost kernel: [ 22.493135] Call Trace:
Mar 4 08:26:45 localhost kernel: [ 22.493140] [<ffffffff810d9de5>]
__lock_acquire+0x6f5/0x1ba0
Mar 4 08:26:45 localhost kernel: [ 22.493144] [<ffffffff810ae538>] ?
sched_clock_cpu+0xa8/0x120
Mar 4 08:26:45 localhost kernel: [ 22.493148] [<ffffffff81021dd3>] ?
native_sched_clock+0x13/0x80
Mar 4 08:26:45 localhost kernel: [ 22.493151] [<ffffffff81021e49>] ?
sched_clock+0x9/0x10
Mar 4 08:26:45 localhost kernel: [ 22.493154] [<ffffffff810db961>]
lock_acquire+0xa1/0x1f0
Mar 4 08:26:45 localhost kernel: [ 22.493160] [<ffffffffa0433a7e>] ?
find_ref_lock+0x2e/0x60 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493170] [<ffffffff817170f6>]
mutex_lock_nested+0x76/0x390
Mar 4 08:26:45 localhost kernel: [ 22.493175] [<ffffffffa0433a7e>] ?
find_ref_lock+0x2e/0x60 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493180] [<ffffffffa0436c88>] ?
v4l2_ctrl_add_handler+0x88/0xf0 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493183] [<ffffffff81717366>] ?
mutex_lock_nested+0x2e6/0x390
Mar 4 08:26:45 localhost kernel: [ 22.493189] [<ffffffffa0433a7e>] ?
find_ref_lock+0x2e/0x60 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493192] [<ffffffff810dc4ed>] ?
trace_hardirqs_on_caller+0x10d/0x1a0
Mar 4 08:26:45 localhost kernel: [ 22.493197] [<ffffffffa0433a7e>]
find_ref_lock+0x2e/0x60 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493202] [<ffffffffa0436141>]
handler_new_ref+0x51/0x200 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493207] [<ffffffffa0436cc7>]
v4l2_ctrl_add_handler+0xc7/0xf0 [videodev]
Mar 4 08:26:45 localhost kernel: [ 22.493212] [<ffffffffa051d619>]
cx8800_initdev+0x3d9/0x8c0 [cx8800]
Mar 4 08:26:45 localhost kernel: [ 22.493215] [<ffffffff8171b0ff>] ?
_raw_spin_unlock_irqrestore+0x3f/0x80
Mar 4 08:26:45 localhost kernel: [ 22.493218] [<ffffffff810dc4ed>] ?
trace_hardirqs_on_caller+0x10d/0x1a0
Mar 4 08:26:45 localhost kernel: [ 22.493221] [<ffffffff810dc58d>] ?
trace_hardirqs_on+0xd/0x10
Mar 4 08:26:45 localhost kernel: [ 22.493226] [<ffffffff813907ab>]
local_pci_probe+0x4b/0x80
Mar 4 08:26:45 localhost kernel: [ 22.493229] [<ffffffff81390a01>]
pci_device_probe+0x111/0x120
Mar 4 08:26:45 localhost kernel: [ 22.493232] [<ffffffff81470e3b>]
driver_probe_device+0x8b/0x390
Mar 4 08:26:45 localhost kernel: [ 22.493235] [<ffffffff814711eb>]
__driver_attach+0xab/0xb0
Mar 4 08:26:45 localhost kernel: [ 22.493238] [<ffffffff81471140>] ?
driver_probe_device+0x390/0x390
Mar 4 08:26:45 localhost kernel: [ 22.493240] [<ffffffff8146edad>]
bus_for_each_dev+0x5d/0xa0
Mar 4 08:26:45 localhost kernel: [ 22.493243] [<ffffffff8147078e>]
driver_attach+0x1e/0x20
Mar 4 08:26:45 localhost kernel: [ 22.493246] [<ffffffff814703b0>]
bus_add_driver+0x1b0/0x2a0
Mar 4 08:26:45 localhost kernel: [ 22.493251] [<ffffffffa0526000>] ?
0xffffffffa0525fff
Mar 4 08:26:45 localhost kernel: [ 22.493254] [<ffffffff814718e7>]
driver_register+0x77/0x170
Mar 4 08:26:45 localhost kernel: [ 22.493257] [<ffffffffa0526000>] ?
0xffffffffa0525fff
Mar 4 08:26:45 localhost kernel: [ 22.493260] [<ffffffff8138f7c4>]
__pci_register_driver+0x64/0x70
Mar 4 08:26:45 localhost kernel: [ 22.493264] [<ffffffffa0526033>]
cx8800_init+0x33/0x1000 [cx8800]
Mar 4 08:26:45 localhost kernel: [ 22.493267] [<ffffffff8100215a>]
do_one_initcall+0x12a/0x180
Mar 4 08:26:45 localhost kernel: [ 22.493271] [<ffffffff810eaf29>]
load_module+0x1bf9/0x23b0
Mar 4 08:26:45 localhost kernel: [ 22.493274] [<ffffffff8137df90>] ?
ddebug_proc_open+0xd0/0xd0
Mar 4 08:26:45 localhost kernel: [ 22.493278] [<ffffffff810eb7b7>]
sys_init_module+0xd7/0x120
Mar 4 08:26:45 localhost kernel: [ 22.493281] [<ffffffff81724799>]
system_call_fastpath+0x16/0x1b
Mar 4 08:26:45 localhost kernel: [ 22.559656] BUG: unable to handle kernel
NULL pointer dereference at 00000000000000b8
Mar 4 08:26:45 localhost kernel: [ 22.559698] IP: [<ffffffffa0558229>]
snd_cx88_volume_put+0x139/0x260 [cx88_alsa]
Mar 4 08:26:45 localhost kernel: [ 22.559731] PGD 3fcd33067 PUD 3fce63067
PMD 0
Mar 4 08:26:45 localhost kernel: [ 22.559762] Oops: 0000 [#1] SMP
Mar 4 08:26:45 localhost kernel: [ 22.559781] Modules linked in:
rc_hauppauge dvb_usb_dib0700(+) snd_hda_codec_realtek cx8802(+) cx8800(+)
cx88_alsa cx88xx dib8000 snd_hda_intel(+) dib7000m snd_hda_codec btcx_risc
dib0090 tveeprom videobuf_dma_sg snd_hwdep videobuf_core snd_seq dib0070
dib7000p dib3000mc dibx000_common dvb_usb dvb_core v4l2_common snd_seq_device
rc_core videodev snd_pcm coretemp iTCO_wdt snd_page_alloc media
iTCO_vendor_support r8169 microcode snd_timer lpc_ich snd serio_raw i2c_i801
mfd_core soundcore mii vhost_net tun macvtap macvlan kvm_intel kvm uinput btrfs
zlib_deflate libcrc32c ata_generic pata_acpi firewire_ohci firewire_core
crc_itu_t pata_it8213 radeon i2c_algo_bit drm_kms_helper ttm drm i2c_core
Mar 4 08:26:45 localhost kernel: [ 22.560007] CPU 3
Mar 4 08:26:45 localhost kernel: [ 22.560007] Pid: 483, comm: alsactl Not
tainted 3.8.1-201.fc18.x86_64.debug #1 Gigabyte Technology Co., Ltd.
EP45-DS4/EP45-DS4
Mar 4 08:26:45 localhost kernel: [ 22.560007] RIP: 0010:[<ffffffffa0558229>]
[<ffffffffa0558229>] snd_cx88_volume_put+0x139/0x260 [cx88_alsa]
Mar 4 08:26:45 localhost kernel: [ 22.560007] RSP: 0018:ffff8803fa5e3d68
EFLAGS: 00010246
Mar 4 08:26:45 localhost kernel: [ 22.560007] RAX: 0000000000000000 RBX:
ffff8803fc028000 RCX: 000000000000003f
Mar 4 08:26:45 localhost kernel: [ 22.560007] RDX: 0000000000000000 RSI:
0000000000980905 RDI: ffff8803fa4f5248
Mar 4 08:26:45 localhost kernel: [ 22.560007] RBP: ffff8803fa5e3da8 R08:
0000000000000000 R09: 0000000000000001
Mar 4 08:26:45 localhost kernel: [ 22.560007] R10: 0000000000000000 R11:
0000000000000000 R12: ffff8803fc012e68
Mar 4 08:26:45 localhost kernel: [ 22.560007] R13: ffff8803fc017400 R14:
0000000000008000 R15: 000000000000fc00
Mar 4 08:26:45 localhost kernel: [ 22.560007] FS: 00007f5999d09740(0000)
GS:ffff88041f400000(0000) knlGS:0000000000000000
Mar 4 08:26:45 localhost kernel: [ 22.560007] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Mar 4 08:26:45 localhost kernel: [ 22.560007] CR2: 00000000000000b8 CR3:
00000003fd76b000 CR4: 00000000000007e0
Mar 4 08:26:45 localhost kernel: [ 22.560007] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Mar 4 08:26:45 localhost kernel: [ 22.560007] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Mar 4 08:26:45 localhost kernel: [ 22.560007] Process alsactl (pid: 483,
threadinfo ffff8803fa5e2000, task ffff8803fa5bc940)
Mar 4 08:26:45 localhost kernel: [ 22.560007] Stack:
Mar 4 08:26:45 localhost kernel: [ 22.560007] ffff8803fa5e3da8
ffffffffa0367e55 ffff8803fa5e3da8 ffff8803fc012e68
Mar 4 08:26:45 localhost kernel: [ 22.560007] ffff8803fc016f60
ffff8803fa58db60 ffff8803fc0170f8 ffff8803fc0172f0
Mar 4 08:26:45 localhost kernel: [ 22.560007] ffff8803fa5e3de8
ffffffffa036930d ffff8803fa5e3de8 ffff8803fc012e68
Mar 4 08:26:45 localhost kernel: [ 22.560007] Call Trace:
Mar 4 08:26:45 localhost kernel: [ 22.560007] [<ffffffffa0367e55>] ?
snd_ctl_find_id+0xc5/0xf0 [snd]
Mar 4 08:26:45 localhost kernel: [ 22.560007] [<ffffffffa036930d>]
snd_ctl_elem_write+0x10d/0x150 [snd]
Mar 4 08:26:45 localhost kernel: [ 22.560007] [<ffffffffa036a7b0>]
snd_ctl_ioctl+0x250/0x850 [snd]
Mar 4 08:26:45 localhost kernel: [ 22.560007] [<ffffffff811ee619>]
do_vfs_ioctl+0x99/0x5a0
Mar 4 08:26:45 localhost kernel: [ 22.560007] [<ffffffff812f6867>] ?
file_has_perm+0x97/0xb0
Mar 4 08:26:45 localhost kernel: [ 22.560007] [<ffffffff811eebb1>]
sys_ioctl+0x91/0xb0
Mar 4 08:26:45 localhost kernel: [ 22.560007] [<ffffffff813696be>] ?
trace_hardirqs_on_thunk+0x3a/0x3f
Mar 4 08:26:45 localhost kernel: [ 22.560007] [<ffffffff81724799>]
system_call_fastpath+0x16/0x1b
Mar 4 08:26:45 localhost kernel: [ 22.560007] Code: 24 50 39 ce 0f 8c f0 00
00 00 41 89 f7 41 be 00 80 00 00 41 c1 e7 0a 85 f6 0f 85 13 01 00 00 48 8b 83
08 0f 00 00 be 05 09 98 00 <48> 8b b8 b8 00 00 00 e8 7b b8 ed ff 48 85 c0 74 48
44 8b 93 c4
Mar 4 08:26:45 localhost kernel: [ 22.560007] RIP [<ffffffffa0558229>]
snd_cx88_volume_put+0x139/0x260 [cx88_alsa]
Mar 4 08:26:45 localhost kernel: [ 22.560007] RSP <ffff8803fa5e3d68>
Mar 4 08:26:45 localhost kernel: [ 22.560007] CR2: 00000000000000b8
Mar 4 08:26:45 localhost kernel: [ 22.570467] ---[ end trace
a5dbb61ff3566117 ]---
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