On my 7.1-STABLE machine from 11 January I replaced my older working OSS 4.0
(1016) with 4.1 (1050) via a portupgrade.
After futzing with the device nodes I managed to get osstest to play the
audio correctly in all cases.
When I subsequently try mpg123 (configured to use esound) to play an mp3 I
get a kernel crash.
The kernel crash is near identical to those reported by Adam, but in my case
I am not even involving any video, just try to play some audio. It starts
with some gibberish sound before crashing.
The kernel crash is as follows:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0xe8166000
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc5d9ac24
stack pointer = 0x28:0xe811cbcc
frame pointer = 0x28:0xe811cbd0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = 705 (irq18: oss_sbxfi0)
trap number = 12
panic: page fault
cpuid = 0
(kgdb) bt
#0 doadump () at pcpu.h:196
#1 0xc05ad507 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418
#2 0xc05ad7d9 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:574
#3 0xc07ab5cc in trap_fatal (frame=0xe811cb8c, eva=3893780480)
at /usr/src/sys/i386/i386/trap.c:939
#4 0xc07abf3f in trap (frame=0xe811cb8c) at /usr/src/sys/i386/i386/trap.c:320
#5 0xc0792a5b in calltrap () at /usr/src/sys/i386/i386/exception.s:159
#6 0xc5d9ac24 in oss_memset () from /usr/local/lib/oss/modules/osscore.ko
#7 0xc5d80e40 in do_outputintr () from /usr/local/lib/oss/modules/osscore.ko
#8 0xc5d810e9 in audio_outputintr ()
from /usr/local/lib/oss/modules/osscore.ko
#9 0xc5deb729 in sbxfi_intr () from /usr/local/lib/oss/modules/oss_sbxfi.ko
#10 0xc5d9afb0 in ossintr () from /usr/local/lib/oss/modules/osscore.ko
#11 0xc058c50b in ithread_loop (arg=0xc56637c0)
at /usr/src/sys/kern/kern_intr.c:1088
#12 0xc0589079 in fork_exit (callout=0xc058c350 <ithread_loop>,
arg=0xc56637c0, frame=0xe811cd38) at /usr/src/sys/kern/kern_fork.c:804
#13 0xc0792ad0 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:264
Contrast this to
http://mailman.opensound.com/pipermail/oss-devel/2009-January/000858.html and
the parallels are plain.
I can reproduce this 100%.
I'd need to see about recompiling OSS with debugging symbols. Any hints/clues
based on the above though?
--
Jeroen Ruigrok van der Werven <asmodai(-at-)in-nomine.org> / asmodai
イェルーン ラウフロック ヴァン デル ウェルヴェン
http://www.in-nomine.org/ | http://www.rangaku.org/ | GPG: 2EAC625B
Earth to earth, ashes to ashes, dust to dust...
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