random FreeBSD panics

[Masoom Shaikh]

On Thu, Apr 8, 2010 at 4:45 PM, Anoop Kumar Narayanan
<anoop.kn at gmail.com> wrote:
> On Sat, Apr 3, 2010 at 6:21 PM, Masoom Shaikh <masoom.shaikh at gmail.com> wrote:
>> On Sun, Mar 28, 2010 at 5:38 PM, Ivan Voras <ivoras at freebsd.org> wrote:
>>> On 28 March 2010 16:42, Masoom Shaikh <masoom.shaikh at gmail.com> wrote:
>>>
>>>> lets assume if this is h/w problem, then how can other OSes overcome
>>>> this ? is there a way to make FreeBSD ignore this as well, let it
>>>> result in reasonable performance penalty.
>>>
>>> Very probably, if only we could detect where the problem is.
>>> Try adding "options     PRINTF_BUFR_SIZE=128" to the kernel
>>> configuration file if you can, to see if you can get a less mangled
>>> log outout.
>>>
>>
>> ok, after few days of silence I am back with more questions
>> this time system feels little better, it is able to sustain for more
>> time that what 7.3-RELEASE could
>>
>> FreeBSD raptor 8.0-RELEASE-p2 FreeBSD 8.0-RELEASE-p2 #0: Thu Apr  1
>> 01:20:45 UTC 2010     root@:/usr/obj/usr/src/sys/INSPIRON  amd64
>>
>> I am using KDE4, and when OS freezes, well it freezes, means I cannot
>> change to tty0 and see the panic text, if any it might possibly have
>> spit. the stuck frozen GUI keeps staring there. So the question is how
>> to I capture that panic text ? unfortunately I am not getting core
>> files too, so there is nothing I can pick up hints
>>
>> is there some option (KDB, DDB), so that on panic system drop to debugger ?
>>
>> Masoom Shaikh
>
> I am having the very same problem, with my AMD64 running i386 (both
> 7.3-REL and 8.0-REL) keeps crashing, The best part is, if I disable
> ACPI it crashes before it even boots up so is the case with safe-mode
> and single-user-mode. With ACPI it boots up but crashes after a while.
> I have the vmcore files on the system. Who do I contact on this regard
> ?
>
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>

can u load that file in kgdb in get backtrace ?