Kernel Panic

[Steve Douville]

My server is rebooting frequently throughout the day. No apparent rhyme or reason, different applications can cause it. The following is what I get from one of the backtraces.


(kgdb) backtrace
#0  0xc055c5e2 in doadump ()
#1  0xc055cb82 in boot ()
#2  0xc055ce18 in panic ()
#3  0xc068502c in trap_fatal ()
#4  0xc06847d5 in trap ()
#5  0xc0674baa in calltrap ()
#6  0xc26d0018 in ?? ()
#7  0xef230010 in ?? ()
#8  0xef230010 in ?? ()
#9  0x00000002 in ?? ()
#10 0xc2b7b300 in ?? ()
#11 0xef23c900 in ?? ()
#12 0xef23c8e8 in ?? ()
#13 0xc2837440 in ?? ()
#14 0xc2837440 in ?? ()
#15 0x00000000 in ?? ()
#16 0xc2b7b320 in ?? ()
#17 0x0000000c in ?? ()
#18 0x00000000 in ?? ()
#19 0xc057a8f9 in turnstile_setowner ()
#20 0xc057abbb in turnstile_wait ()
#21 0xc0554565 in _mtx_lock_sleep ()
#22 0xc05543dc in _mtx_lock_flags ()

It seems that pretty much every time I've traced the dump, it's always the turnstile_setowner that causes the panic. Or am I reading this wrong?

Any thoughts or further debugging tips would be appreciated. 

TIA,
Steve