lockmgr: thread 0xc8f5b000 unlocking unheld lock

Kris Kennaway kris at obsecurity.org
Fri Sep 2 15:02:28 PDT 2005

lockmgr: thread 0xc8f5b000 unlocking unheld lock
KDB: stack backtrace:
kdb_backtrace(c070420e,c8f5b000,c07040a6,a3,c8f5b000) at kdb_backtrace+0x2f
lockmgr(cb69dd18,6,cb69dd3c,c8f5b000,f7d3bbe0) at lockmgr+0x632
vop_stdunlock(f7d3bbf8,0,cb69dd3c,2,cb69dcc0) at vop_stdunlock+0x32
VOP_UNLOCK_APV(c073a2a0,f7d3bbf8,cb69dd3c,7d6,c0762460) at VOP_UNLOCK_APV+0xb2
vn_lock(cb69dcc0,2002,c8f5b000,7d6,c0703374) at vn_lock+0x133
vrele(cb69dcc0,0,c070336b,178,68f) at vrele+0xfa
exit1(c8f5b000,0,f7d3bd30,c06c8194,c8f5b000) at exit1+0xb1e
exit1(c8f5b000,f7d3bd04,4,8070000,1) at exit1
syscall(3b,3b,3b,0,bfbfe3e4) at syscall+0x295
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (1, FreeBSD ELF32, sys_exit), eip = 0x8060543, esp = 0xbfbfe32c, ebp = 0xbfbfe338 ---

At the time I was running a buildworld over r/w nullfs (/usr/src and

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