Re: pcm0 + rl0 in the same irq causes panic

On Sun, 1 Oct 2006 23:06:47 +0100
"Alexandre Vieira" <nullpt_at_gmail.com> wrote:
> Hello,
> 
> Here is a backtrace of the panic:
> 
> blackpearl# kgdb kernel.debug /var/crash/vmcore.0
> kgdb: kvm_nlist(_stopped_cpus):
> kgdb: kvm_nlist(_stoppcbs):
> [GDB will not be able to debug user-mode threads:
> /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
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> There is absolutely no warranty for GDB.  Type "show warranty" for
> details. This GDB was configured as "i386-marcel-freebsd".
> 
> Unread portion of the kernel message buffer:
> pcm0: PCMDIR_PLAY: Stream setup nid=2 fmt=0x00000011
> <2>NMI ISA b0, EISA ff
> <2>RAM parity error, likely hardware failure.
> 
> Fatal trap 19: non-maskable interrupt trap while in kernel mode
> instruction pointer     = 0x20:0xc5798eaa
> stack pointer           = 0x28:0xe50e6b70
> frame pointer           = 0x28:0xe50e6bc4
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                         = DPL 0, pres 1, def32 1, gran 1
> processor eflags        = interrupt enabled, IOPL = 0
> current process         = 1211 (artsd)
> trap number             = 19
> panic: non-maskable interrupt trap
> Uptime: 1h31m2s
> Dumping 1014 MB (2 chunks)
>   chunk 0: 1MB (159 pages) ... ok
>   chunk 1: 1014MB (259456 pages) 998 982 966 950 934 918 902 886 870
> 854 838 822 806 790 774 758 742 726 710 694 678 662 646 630 614 598
> 582 566 550 534 518 502 486 470 454 438 422 406 390 374 358 342 326
> 310 294 278 262 246 230 214 198 182 166 150 134 118 102 86 70 54 38
> 22 6
> 
> #0  doadump () at pcpu.h:165
> 165             __asm __volatile("movl %%fs:0,%0" : "=r" (td));
> (kgdb) where
> #0  doadump () at pcpu.h:165
> #1  0xc05f34cc in boot (howto=260) at
> #/usr/src/sys/kern/kern_shutdown.c:409 2  0xc05f3819 in panic
> #(fmt=0xc0816cc2 "%s") at
> /usr/src/sys/kern/kern_shutdown.c:565
> #3  0xc07d78cc in trap_fatal (frame=0xe50e6b30, eva=0) at
> /usr/src/sys/i386/i386/trap.c:837
> #4  0xc07d72d2 in trap (frame=
>       {tf_fs = -452067320, tf_es = 40, tf_ds = -993853400, tf_edi =
>       0,
> tf_esi = 0, tf_ebp = -452039740, tf_isp = -452039844, tf_ebx =
> 1039527936, tf_edx = -994638720, tf_ecx = -988999680, tf_eax = 2,
> tf_trapno = 19, tf_err = 0, tf_eip = -981889366, tf_cs = 32,
> tf_eflags = 2097811, tf_esp = -982862592, tf_ss = 0}) at
> /usr/src/sys/i386/i386/trap.c:632
> #5  0xc07c26ca in calltrap () at
> #/usr/src/sys/i386/i386/exception.s:139 6  0xc5798eaa in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> (kgdb)
> 
> 

Both of you, replace sys/dev/sound/pci/hda/hdac.c with this:

http://people.freebsd.org/~ariff/test/hdac_artsdwreck.c


--
Ariff Abdullah
FreeBSD

... Recording in stereo is obviously too advanced
    and confusing for us idiot ***** users :P ........