panic: bufwrite: buffer is not busy???

[Eugene Grosbein]

On 05.02.2011 20:00, Eugene Grosbein wrote:

>>> First: again, no dump (not even started to dump, and no "Uptime:" written to console):
>>
>> if you try and enable dumps manually from the shell,
>>
>> dumpon -v /dev/ad0s1b
>> (or whatever your swap partition is), what does dumpon return with ?
> 
> # . /etc/rc.conf
> # set -x
> # dumpon -v $dumpdev
> + dumpon -v /dev/ad0s4b
> kernel dumps on /dev/ad0s4b

Note: this is NanoBSD running from SSD. It uses ad0s1 and ad0s2 for code
and ad0s3 for /cfg, as usual, 1GB total. Other space of SSD is dedicated
to ad0s4 where I have ad0s4b (8GB) for crashdump and the rest as ad0s4a for /var/crash.

And ad0s4b is NOT configured as swap. There are 4GB of RAM and no swap here.
More than 3GB of RAM are generally free.

Eugene Grosbein