server crash "panic: spin lock held too long"

[Kris Kennaway]

On Sun, Mar 20, 2005 at 09:06:17AM +0100, Gerard Meijer wrote:
> Hi I have a P4 2.6Mhz running on FreeBSD 5.3.
> 
> Every few days the server crashes. When it crashes it says:
> 
> spin lock sleepq chain held by 0xc1eb7640 for > 5 seconds
> panic: spin lock held too long
> Uptime: 2d3h56m36s
> 
> Anybody any idea how I can fix this?

See the chapter on kernel debugging in the developers' handbook to
learn how to obtain the necessary information for a developer to begin
investigating this.

Also make sure you're running with all of the 5.3 errata patches, and
consider updating to 5.4-PRERELEASE to see if it's fixed already.

Kris
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