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Re: 8.0C portnoy: panic: vn_rele vnode ref count 0

daemon@ATHENA.MIT.EDU (Charles M. Hannum)
Tue Jul 23 10:01:57 1996

To: John Hawkinson <jhawk@MIT.EDU>
Cc: testers@MIT.EDU, sipb-staff@MIT.EDU, afsdev@MIT.EDU
From: mycroft@MIT.EDU (Charles M. Hannum)
Date: 23 Jul 1996 10:01:35 -0400
In-Reply-To: John Hawkinson's message of Sun, 21 Jul 1996 00:59:35 -0400


John Hawkinson <jhawk@MIT.EDU> writes:

> 
> kretch was logged in on portnoy
> this evening when it crashed with
> 
> 	panic: vn_rele: vnode ref count 0
> 
> Here's his description of what he was doing:
> 
> } Before the machine paniced I had a tcl/tk zephyr client running that
> } appeared to run out of swap space (although the error message was unclear
> } about this)

I've also had problems with programs dying like this.  From syslog:

09:31 WARNING: Process [Mozilla30] pid 1085 killed: not enough memory to grow stack

opus 34# swap -l
lswap path         dev    pri swaplo   blocks     free  maxswap    vswap
    2 /swap/swap1
                 128,16     3      0        0        0        0   409600
    1 /dev/swap
                 128,17     0      0   304800   304800   304800        0
opus 35# w

Also, a few minutes ago the machine crashed with what appears to be a
jump through a NULL pointer in the kernel.  I suspect that both this
and kretch's panic were AFS related.


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