Re: kernel panic under nfs load

[Andrew Doran <ad%netbsd.org@localhost>]

Hi,

On Tue, Feb 27, 2007 at 09:01:57PM +1100, Sarton O'Brien wrote:

> Mutex error: mutex_vector_enter: locking against myself
> 
> lock address : 0x00000000c047d7e0
> current cpu  :                  0
> current lwp  : 0x00000000c961d700
> owner field  : 0x0000000000010b00 wait/spin:                0/1
> 
> panic: lock error
> Stopped in pid 223.1 (nfsio) at netbsd:cpu_Debugger+0x4:        popl    %ebp
> db> bt
> cpu_Debugger(c040ed4f,c9662a18,0,0,c9662a18) at netbsd:cpu_Debugger+0x4
> panic(c040a801,c0409752,c03f1614,c0403078,c047d7e0) at netbsd:panic+0x155
> lockdebug_abort(0,c047d7e0,c043beb0,c03f1614,c0403078) at 
> netbsd:lockdebug_abort
> +0x61
> mutex_abort(c047d7e0,c03f1614,c0403078,0,1) at netbsd:mutex_abort+0x3c
> mutex_vector_enter(c047d7e0,0,c0839200,c047e660,c98659f8) at 
> netbsd:mutex_vector
> _enter+0x12f
> turnstile_wakeup(c8c6c870,1,1,0,c9a24d24) at netbsd:turnstile_wakeup+0xc4
> mutex_vector_exit(c98659f8,3f80000,0,32aa00,0) at 
> netbsd:mutex_vector_exit+0xff
> nfs_doio_write(c9662bf0,0,c9662bec,c02dd4d2,c961d700) at 
> netbsd:nfs_doio_write+0
> x4a2
> nfs_doio(c08a3184,100,c0403e41,0,c0470fe0) at netbsd:nfs_doio+0x1aa
> nfssvc_iod(c961d700,0,0,c01001f5,c961d700) at netbsd:nfssvc_iod+0xce
> start_nfsio(c961d700,0,c01001e7,c01001df,c01001e7) at netbsd:start_nfsio+0x13
> db>

I'm guessing that that your kernel config does not include MULTIPROCESSOR?
If so, this should be fixed by sys/kern/kern_turnstile.c revision 1.5.

Thanks,
Andrew