One more panic with recent STABLE - vm_page_unwire: invalid wire count: 0

[Vladimir Grebenschikov]

Hi

Dump header from device /dev/ad0s2b
  Architecture: i386
  Architecture Version: 2
  Dump Length: 209514496B (199 MB)
  Blocksize: 512
  Dumptime: Mon Apr 28 11:40:40 2008
  Hostname: vbook
  Magic: FreeBSD Kernel Dump
  Version String: FreeBSD 7.0-STABLE #3: Sat Apr 26 10:20:31 MSD 2008
    root at vbook:/usr/src/sys/i386/compile/VBOOK
  Panic String: vm_page_unwire: invalid wire count: 0
  Dump Parity: 519451241
  Bounds: 45
  Dump Status: good


That was happens on 'pkill evolution' command.

kgdb /boot/kernel/kernel.symbols /var/crash/vmcore.45
[...]
Attempt to extract a component of a value that is not a structure
pointer.
#0  doadump () at pcpu.h:195
195             __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc0542757 in boot (howto=260) at ../../../kern/kern_shutdown.c:418
#2  0xc0542a53 in panic (fmt=Variable "fmt" is not available.
) at ../../../kern/kern_shutdown.c:572
#3  0xc066496e in vm_page_unwire ()
#4  0xc0653469 in vm_fault_unwire ()
#5  0xc065afa3 in vm_map_delete ()
#6  0xc065b2d1 in vm_map_remove ()
#7  0xc0652536 in uma_large_free ()
#8  0xc0531dde in free ()
#9  0xc050ce32 in cpufreq_curr_sysctl ()
#10 0xc054c647 in sysctl_root ()
#11 0xc054c7e1 in userland_sysctl ()
#12 0xc054d9d1 in __sysctl ()
#13 0xc06a8ddd in syscall ()
#14 0xc068e870 in Xint0x80_syscall ()
#15 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) 


-- 
Vladimir B. Grebenschikov
vova at fbsd.ru