On Sunday, 11 בJanuary 2009 18:03:03 Jeroen Ruigrok van der Werven wrote: > 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?
I understand you didn't have this with 4.0? I suggest you clone the mercurial repository ( http://mercurial.opensound.com ), and then testing to see where the regression is by rebuilding various revisions of the rep ("hg revert -r [REV]" or "hg bisect [REV]" can be used for example). Building instructions can be found at http://www.opensound.com/wiki/index.php/Building_OSSv4_from_source . You can see by "hg log kernel/OS/FreeBSD/os_freebsd.c" some interesting revs. to test around (revs. 384 and 446 come to mind). Yours, Yair K. _______________________________________________ oss-devel mailing list oss-devel@mailman.opensound.com http://mailman.opensound.com/mailman/listinfo/oss-devel
