kernel dump with 7.1-RELEASE

Daniel Bond db at danielbond.org
Fri Jan 9 03:18:59 PST 2009


Hi,

I'm assuming you configured a a dump-device in rc.conf, but just in  
case, here are the options:

db ~> grep dump /etc/defaults/rc.conf                              
[p8 at gonzales]
dumpdev="AUTO"		# Device to crashdump to (device name, AUTO, or NO).
dumpdir="/var/crash"	# Directory where crash dumps are to be stored
savecore_flags=""	# Used if dumpdev is enabled above, and present.

using SWAP as the dumpdevice is the recommended way, as you sorta  
pointed out. More information can be found at:

http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html


On Jan 8, 2009, at 5:05 PM, Omer Faruk Sen wrote:

> Hi,
>
> I am having kernel dumps with FreeBSD 7.1
>
> panic: semexit - semid not allocated
> cpuid = 1
> Uptime : 8m22s
> Cannot dump. No dump device defined
> Sleeping thread (tid 100129, pid 1479) owns a non-sleepable lock
>
>
> I know it is not clear and there were no swap space configured on this
> server (which I will re-install with swap space) but can someone
> enlighten me about this since I think this bug was also in FreeBSD 6.2
> and fixed in FreeBSD 6.3
>
> Regards.
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