GPF on Current kernel

[Konstantin Belousov]

On Tue, Jul 07, 2015 at 08:02:39AM -0500, Larry Rosenman wrote:
> (kgdb) #0  doadump (textdump=1) at pcpu.h:221
> #1  0xffffffff80a95445 in kern_reboot (howto=260)
>     at /usr/src/sys/kern/kern_shutdown.c:447
> #2  0xffffffff80a95a38 in vpanic (fmt=<value optimized out>, 
>     ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:744
> #3  0xffffffff80a95a83 in panic (fmt=0x0)
>     at /usr/src/sys/kern/kern_shutdown.c:675
> #4  0xffffffff80ed8275 in trap_fatal (frame=<value optimized out>, 
>     eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:853
> #5  0xffffffff80ed7f03 in trap (frame=<value optimized out>)
>     at /usr/src/sys/amd64/amd64/trap.c:201
> #6  0xffffffff80eb8582 in calltrap ()
>     at /usr/src/sys/amd64/amd64/exception.S:235
> #7  0xffffffff80a7984f in __mtx_lock_flags (c=0xdeadc0dedeadc116, opts=0, 
>     file=0xffffffff8120d108 "/usr/src/sys/kern/sys_generic.c", line=1808)
>     at /usr/src/sys/kern/kern_mutex.c:211
> #8  0xffffffff80af1215 in doselwakeup (sip=0xfffff8023d00a970, pri=104)
>     at /usr/src/sys/kern/sys_generic.c:1808
> #9  0xffffffff80af4276 in pipeselwakeup (cpipe=0xfffff8023d00a8b8)
>     at /usr/src/sys/kern/sys_pipe.c:622
>From this frame, please do
p *(cpipe->pipe_pair)
p *pipe_zone

> #10 0xffffffff80af2f82 in pipe_write (fp=0xfffff8027f5f14b0, 
>     uio=<value optimized out>, active_cred=<value optimized out>, flags=1808, 
>     td=0xfffff801a357b980) at /usr/src/sys/kern/sys_pipe.c:1314
> #11 0xffffffff80aeeeca in dofilewrite (td=0xfffff801a357b980, fd=1, 
>     fp=0xfffff8027f5f14b0, auio=0xfffffe2eb487cab0, 
>     offset=<value optimized out>, flags=0) at file.h:310
> #12 0xffffffff80aeebd8 in kern_writev (td=0xfffff801a357b980, fd=1, 
>     auio=0xfffffe2eb487cab0) at /usr/src/sys/kern/sys_generic.c:485
> #13 0xffffffff80aeeb63 in sys_write (td=0xdeadc0dedeadc116, 
>     uap=<value optimized out>) at /usr/src/sys/kern/sys_generic.c:398
> #14 0xffffffff80ed8a6d in amd64_syscall (td=0xfffff801a357b980, traced=0)
>     at subr_syscall.c:133
> #15 0xffffffff80eb886b in Xfast_syscall ()
>     at /usr/src/sys/amd64/amd64/exception.S:395
> #16 0x000000000045ae8a in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> Current language:  auto; currently minimal
> (kgdb) 
> 
> 
> 
> -- 
> Larry Rosenman                     http://www.lerctr.org/~ler
> Phone: +1 214-642-9640                 E-Mail: ler at lerctr.org
> US Mail: 108 Turvey Cove, Hutto, TX 78634-5688