Date: Mon, 24 Feb 2003 09:43:05 -0800 From: Lars Eggert <larse@ISI.EDU> To: Mike Makonnen <mtm@identd.net> Cc: jeff@freebsd.org, freebsd-current@freebsd.org Subject: Re: cvs commit: src/sys/kern kern_lock.c Message-ID: <3E5A59A9.3080601@isi.edu> In-Reply-To: <20030224121303.DJPO1817.out006.verizon.net@kokeb.ambesa.net> References: <20030224121303.DJPO1817.out006.verizon.net@kokeb.ambesa.net>
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Mike Makonnen wrote:
>>jeff 2003/02/16 02:39:49 PST
>>
>> Modified files:
>> sys/kern kern_lock.c
>> Log:
>> - Add a WITNESS_SLEEP() for the appropriate cases in lockmgr().
>>
>> Revision Changes Path
>> 1.64 +7 -0 src/sys/kern/kern_lock.c
>
>
> I now get the following:
Same here, FWIW.
>
> rebka# /daemon/build/current/rebka/src/sys/kern/kern_lock.c:239: could sleep with "buf queue lock" locked from /daemon/build/current/rebka/src/sys/kern/vfs_bio.c:2143
> Debugger("witness_sleep")
> Stopped at Debugger+0x54: xchgl %ebx,in_Debugger.0
> db> tr
> Debugger(c04a73dc,c04e005e,ef,c04e4d42,c04e769b) at Debugger+0x54
> witness_sleep(1,c172c708,c04e005e,ef,c09f11e0) at witness_sleep+0x123
> lockmgr(c172c7cc,10001,c172c708,c09f11e0,12) at lockmgr+0x71
> vop_sharedlock(c5bfdc98,0,c04e95be,35c,c02efcf1) at vop_sharedlock+0x7d
> vn_lock(c172c708,12,c09f11e0,85f,c05b1d00) at vn_lock+0xeb
> flushbufqueues(c05b1d00,0,c04e765b,11e,64) at flushbufqueues+0xfb
> buf_daemon(0,c5bfdd48,c04df6c2,365,0) at buf_daemon+0xd5
> fork_exit(c033e2e0,0,c5bfdd48) at fork_exit+0xc4
> fork_trampoline() at fork_trampoline+0x1a
> --- trap 0x1, eip = 0, esp = 0xc5bfdd7c, ebp = 0 ---
--
Lars Eggert <larse@isi.edu> USC Information Sciences Institute
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