vmstat 'b' (disk busy?) field keeps climbing ...

[Marc G. Fournier]

On Mon, 26 Jun 2006, Kostik Belousov wrote:

> On Mon, Jun 26, 2006 at 02:20:12AM -0300, Marc G. Fournier wrote:
>> On Mon, 26 Jun 2006, Kostik Belousov wrote:
>>
>>> Yes, this looks like a deadlock. As I understand, that's on 6.1-STABLE ?
>>
>> Yes, kernel sources, it seems, from May 25th, according to my /usr/src
>> tree ...
>>
>>> BTW, do you use snapshots ?
>>
>> Not that I've explicitly enabled ...
>>
>>> I think that without ddb access, diagnose and debug the problem would be
>>> quite hard.
>>
>> Would it be a simple matter of:
>>
>> CTL-ALT-ESC
>> panic
>>
>> to get it to dump core?  Or would more be involved?  Would a core dump
>> even work?
> Core dumps are somewhat unconvenient in this situation. Better,
> sending report to me, follow my advise in

> http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html

The problem is that I'm dealing with a remote server here, no serial 
console, and no guaranteed keyboard :(  I'm between a rock and a hard 
place on this one :(

----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email . scrappy at hub.org                              MSN . scrappy at hub.org
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