Help debugging a deadlock in salvia on GHC 6.10 i386

[Corey O'Connor]

On Sat, Jun 6, 2009 at 2:09 PM, Corey O'Connor<coreyoconnor at gmail.com> wrote:
> I'm running a webserver built using salvia [1] and GHC 6.10 [2]. I've
> trimmed down the code enough such that there is no obvious source of a
> deadlock in either salvia or the reset of the web server. I don't have
> any specific conditions that reproduce the issue as well. Just after
> some time, anywhere from a few minutes to a few hours, the server
> deadlocks. No particular request or number of requests seem to trigger
> the deadlock.

I've narrowed down the issue to be related to the use of
System.Timeout.timeout. Without the use of the timeout combinator the
server does not hit a deadlock condition. With the use of the
combinator the server eventually deadlocks.

I'll look into if any of salvia's threads would be aversely effected
by a timeout. Are there any known issues with the timeout
implementation besides the (reasonable) inability to timeout FFI
calls?

Cheers,
Corey O'Connor