[Pvfs2-developers] dbench and pvfs2_bufmap race

[Phil Carns]

Whoops - it looks like the pvfs2-client-core crash didn't really have 
much to do w/ dbench.  That was a red herring (a system/compile problem 
on my end was what really triggered that), but I think the fixes to 
address the bufmap race conditions ended up being a good thing anyway :)

Anyway, I can't vouch for the current state of dbench with pvfs2 trunk; 
I think it probably still hangs the client machine just as before.

-Phil

Robert Latham wrote:
> On Thu, Jan 17, 2008 at 06:37:52PM -0600, Phil Carns wrote:
>> 1) dbench somehow kills pvfs2-client-core (not sure why yet)
> 
> Hi Phil
> Thanks for taking a look at the dbench failures.  
> 
> I confirmed yesterday that revision 1.32 of
> src/kernel/linux-2.6/dcache.c is the last revision to pass dbench.
> Sam already knows that's a suspect area.  I'm just saying by starting
> with HEAD and reverting that one file to 1.32 dbench (and all the
> other nightlies) pass. 
> 
> Why do subsequent revisions make pvfs2-client-core blow up? no idea.
> It's no small change, and related if I remember correctly to Sam and
> Kevin debugging some BGP issues, so reverting it doesn't seem like the
> right thing to do.
> 
> ==rob
>