Debugging panic in IOAudioFamily
Debugging panic in IOAudioFamily
- Subject: Debugging panic in IOAudioFamily
- From: Rohan Lloyd <email@hidden>
- Date: Sun, 31 Aug 2008 18:50:38 +1000
I am getting quite frequent kernel panics in IOAudioFamily. I'm
running EyeTV with Digital Audio which seems to be the cause.
I have reported it to both Elgato and Apple (radar://5994776). Elgato
say they know about the issue, and it's Apple's problem.
The last I heard from Apple was that they couldn't reproduce the
problem. I can't reproduce it at will either, but it happens pretty
frequently (several times a week). I have attached to the paniced
machine with gdb and got information such as bt, info all-reg,
showallstacks. and added all that to the radar.
This is getting really annoying, and I'd really like to help get this
fixed. What more should I be doing to help?
Here is a subset of the info I got from gdb:
#0 Debugger (message=0x459294 "panic") at /SourceCache/xnu/
xnu-1228.5.18/osfmk/i386/AT386/model_dep.c:786
#1 0x0012b0fa in panic (str=0x4627fc "Kernel trap at 0xx, type %d=
%s, registers:\nCR0: 0xx, CR2: 0xx, CR3: 0xx, CR4: 0xx
\nEAX: 0xx, EBX: 0xx, ECX: 0xx, EDX: 0xx\nCR2: 0xx,
EBP: 0xx, ESI: 0xx, EDI: 0xx\nE"...) at /SourceCache/xnu/
xnu-1228.5.18/osfmk/kern/debug.c:274
#2 0x001a8cd4 in kernel_trap (state=0x21ce7c2c) at /SourceCache/xnu/
xnu-1228.5.18/osfmk/i386/trap.c:680
#3 0x0019ede5 in trap_from_kernel () at pmap.h:176
#4 0x00197f36 in memcpy_common () at pmap.h:176
#5 0x00ac882a in ?? ()
#6 0x00ac866e in ?? ()
#7 0x00ac846d in ?? ()
#8 0x00ac3afc in ?? ()
#9 0x00ac3196 in ?? ()
#10 0x0043d51c in iokit_user_client_trap (args=0x21ce7c24) at /
SourceCache/xnu/xnu-1228.5.18/iokit/Kernel/IOUserClient.cpp:3950
#11 0x001973dd in mach_call_munger (state=0x428365c) at /SourceCache/
xnu/xnu-1228.5.18/osfmk/i386/bsd_i386.c:709
#12 0x0019f3b3 in lo_mach_scall () at pmap.h:176
thread processor pri state wait_queue wait_event
0x04d23998 0x1b4aa000 97 R
reserved_stack=0x21cbc000
kernel_stack=0x21ce4000
stacktop=0x21ce7ae8
0x21ce7ae8 0x12b0fa <panic+422>
0x21ce7b38 0x1a8cd4 <kernel_trap+1450>
0x21ce7c18 0x19ede5 <trap_from_kernel+26>
0x21ce7c24 0x197f36 <memcpy_common+10>
0x21ce7cd8 0xac882a <com.apple.iokit.IOAudioFamily + 0xf82a>
0x21ce7d28 0xac866e <com.apple.iokit.IOAudioFamily + 0xf66e>
0x21ce7d68 0xac846d <com.apple.iokit.IOAudioFamily + 0xf46d>
0x21ce7de8 0xac3afc <com.apple.iokit.IOAudioFamily + 0xaafc>
0x21ce7e68 0xac3196 <com.apple.iokit.IOAudioFamily + 0xa196>
0x21ce7ea8 0x43d51c <iokit_user_client_trap+202>
0x21ce7f08 0x1973dd <mach_call_munger+529>
0x21ce7fc8 0x19f3b3 <lo_mach_scall+227>
stackbottom=0x21ce7fc8
Any suggestions?
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