6.1-RELEASE / 6.2 Kernel Crash...

[Jan Knepper]

Kris Kennaway wrote:
> On Tue, Dec 26, 2006 at 08:24:12PM -0500, Jan Knepper wrote:
>   
>> Tried that and started
>>
>> dd if=/dev/ad4 if=/dev/ad6 bs=1m
>>
>> Kernel went in panic and automatic reboot in about an hour... <sigh>
>>
>> It gets worse... when it does reboot the disk drive will not show in the 
>> BIOS, nor does FreeBSD recognize it during boot. The system actually has 
>> to be turned off to reset the drive...
>>
>> This is bad...
>>
>> Any other suggestions?
>>     
>
> Sounds like a bug in the support for your ATA hardware, or your
> hardware is broken.  The very least you'll need to do is to obtain a
> crashdump and debugging backtrace (see the developers handbook) and CC
> it to sos@
>
>   
This is getting funnier...
I added:
dumpdev="AUTO"
to: rc.conf
Rebooted the system and tried to get it to crash again...
And indeed it does in process 9: taskq

Then it starts dumping which takes a couple of seconds as the machine 
has 2 GB Ram...

Than it reboots... and the next thing you know... savecore does NOT 
recognize a dump on the swap file system. If does not save anything to 
/var/crash... <sigh>
Tried this about 10 times... No luck...

Any other idea's?

Thanks!
Jan