Witness panic in pseudofs_vncache

From: Martin Blapp <mb_at_imp.ch>
Date: Fri, 13 Aug 2004 16:42:35 +0200 (CEST)
Sleeping on "pseudofs" with the following non-sleepable locks held:
exclusive sleep mutex pseudofs_vncache r = 0 (0xc0903e40) locked _at_
/usr/src/sys/fs/pseudofs/pseudofs_vncache.c
:226
KDB: enter: witness_warn
[thread 100232]
Stopped at      kdb_enter+0x30: leave

db> where
kdb_enter(c080e20c,e5143af8,1,1,1) at kdb_enter+0x30
witness_warn(5,c09087bc,c084de97,c084928d,1) at witness_warn+0x19b
msleep(c469cc08,c09087bc,50,c084928d,0) at msleep+0x5b
acquiredrain(c469cc04,1000040,c084c33b,e7,c3f7a160) at acquiredrain+0x9c
lockmgr(c469cc04,10007,c469cb58,c3f7a160,e5143ba0) at lockmgr+0x4d2
vop_stdlock(e5143bf8,e5143c14,c068ce26,e5143bf8,1) at vop_stdlock+0x2c
vop_defaultop(e5143bf8,1,c062ccaf,c090f400,8) at vop_defaultop+0x18
vclean(c469cb58,8,c3f7a160,c469cb58,c3f7a160) at vclean+0x50
vgonel(c469cb58,c3f7a160,c0853c09,a43,0) at vgonel+0x5f
vgone(c469cb58,0,c0849739,e2,c35dc5a0) at vgone+0x42
pfs_exit(0,c3f7da68,c084b8ec,cc,c0908260) at pfs_exit+0x74
exit1(c3f7a160,0,e5143d40,c07e88eb,c3f7a160) at exit1+0x2ed
exit1(c3f7a160,e5143d14,4,c0851129,1) at exit1
syscall(2f,2f,2f,bfbfe508,bfbfe468) at syscall+0x275
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (1, FreeBSD ELF32, sys_exit), eip = 0x832d7c7, esp = 0xbfbfe434, ebp
= 0xbfbfe440 ---
Received on Fri Aug 13 2004 - 12:42:48 UTC

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