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Re: kern/42455: tstile hang with nfs
The following reply was made to PR kern/42455; it has been noted by GNATS.
From: "Christoph Egger" <Christoph_Egger%gmx.de@localhost>
To: gnats-bugs%NetBSD.org@localhost, netbsd-bugs%netbsd.org@localhost,
gnats-admin%netbsd.org@localhost,
kern-bug-people%netbsd.org@localhost, ad%netbsd.org@localhost
Cc:
Subject: Re: kern/42455: tstile hang with nfs
Date: Wed, 05 May 2010 16:35:27 +0200
Some information about the nfsmblk process:
db> tr /a ffffa000260cdc00
trace: pid 0 lid 47 at 0xffffa00026110980
sleepq_block() at netbsd:sleepq_block+0xbf
cv_wait() at netbsd:cv_wait+0x106
nfs_writerpc() at netbsd:nfs_writerpc+0xda1
nfs_doio() at netbsd:nfs_doio+0x4c2
nfssvc_iod() at netbsd:nfssvc_iod+0x17b
db> ps /w
PID LID COMMAND EMUL PRI WAIT-MSG WAIT-CHANNEL
0 47 system netbsd 96 nfsmblk ffffa00026110a88
db> show lock ffffa00026110a88
lock address : 0xffffa00026110a88 type : spin
initialized : 0xffffffff804da720 interlock: 0xffffa00026110a80
db> show lock 0xffffa00026110a80
lock address : 0xffffa00026110a80 type : spin
initialized : 0xffffffff804da709
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
current cpu : 0 last held: 0
current lwp : 0xffffa0002320ec00 last held: 000000000000000000
last locked : 0xffffffff804db406 unlocked : 0xffffffff803eeae7
owner field : 0x0000000000000600 wait/spin: 0/1
'last locked' points to sys/nfs/nfs_vnops.c:1468
'unlocked' points to sys/kern/kern_condvar.c:154
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