Re: panic: vm_page_free_toq: freeing mapped page

Can you please file a problem report on this crash?  I'd like to have it in
the database.  It's a very rare crash that been reported on a couple
occasions over the past five or more years.

Thanks,
Alan

2009/3/17 Steve Kargl <sgk_at_troutmask.apl.washington.edu>

> Script started on Tue Mar 17 14:31:57 2009
> troutmask:root[201] kgdb /usr/obj/usr/src/sys/SPEW/kernel.debug
> /usr/tmp/vmcore.3
>
> Unread portion of the kernel message buffer:
> panic: vm_page_free_toq: freeing mapped page 0xffffff01f77d8f70
> cpuid = 1
> Uptime: 22h33m24s
> Physical memory: 8117 MB
> Dumping 934 MB: 919 903 887 871 855 839 823 807 791 775 759 743 727 711 695
> 679 663 647 631 615 599 583 567 551 535 519 503 487 471 455 439 423 407 391
> 375 359 343 327 311 295 279 263 247 231 215 199 183 167 151 135 119 103 87
> 71 55 39 23 7
>
> #0  doadump () at pcpu.h:215
> 215     pcpu.h: No such file or directory.
>        in pcpu.h
> (kgdb) bt
> #0  doadump () at pcpu.h:215
> #1  0xffffffff802e9aea in boot (howto=260)
>    at /usr/src/sys/kern/kern_shutdown.c:420
> #2  0xffffffff802e9f5c in panic (fmt=Variable "fmt" is not available.
> )
>    at /usr/src/sys/kern/kern_shutdown.c:576
> #3  0xffffffff804ccd5d in vm_page_free_toq (m=0xffffff01f77d8f70)
>    at /usr/src/sys/vm/vm_page.c:1370
> #4  0xffffffff804c9807 in vm_object_terminate (object=0xffffff00d602b190)
>    at /usr/src/sys/vm/vm_object.c:677
> #5  0xffffffff804cb047 in vm_object_deallocate (object=0xffffff00d602b190)
>    at /usr/src/sys/vm/vm_object.c:589
> #6  0xffffffff804c3700 in _vm_map_unlock (map=0xffffff01a8300180,
> file=Variable "file" is not available.
> )
>    at /usr/src/sys/vm/vm_map.c:476
> #7  0xffffffff804c3cbf in vm_map_remove (map=0xffffff01a8300180,
> start=Variable "start" is not available.
> )
>    at /usr/src/sys/vm/vm_map.c:2596
> #8  0xffffffff804c4b25 in vmspace_free (vm=0xffffff01a8300180)
>    at /usr/src/sys/vm/vm_map.c:325
> #9  0xffffffff804c5f26 in vmspace_exec (p=0xffffff0004d5c880,
> minuser=Variable "minuser" is not available.
> )
>    at /usr/src/sys/vm/vm_map.c:3228
> #10 0xffffffff802c5552 in exec_new_vmspace (imgp=0xffffffff240ad9f0,
>    sv=0xffffffff8075d8c0) at /usr/src/sys/kern/kern_exec.c:1013
> #11 0xffffffff8052ef1e in exec_elf32_imgact (imgp=0xffffffff240ad9f0)
>    at imgact_elf.c:694
> #12 0xffffffff802c59bb in kern_execve (td=0xffffff0004dee000,
>    args=0xffffffff240adaf0, mac_p=Variable "mac_p" is not available.
> ) at /usr/src/sys/kern/kern_exec.c:470
> #13 0xffffffff802c681d in execve (td=0xffffff0004dee000, uap=Variable "uap"
> is not available.
> )
>    at /usr/src/sys/kern/kern_exec.c:203
> #14 0xffffffff80502bed in syscall (frame=0xffffffff240adc80)
>    at /usr/src/sys/amd64/amd64/trap.c:882
> #15 0xffffffff804dfefb in Xfast_syscall ()
>    at /usr/src/sys/amd64/amd64/exception.S:338
> #16 0x0000000200927c4c in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> (kgdb) quit
> Script done on Tue Mar 17 14:32:50 2009
>
> --
> Steve
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