On Fri, Aug 12, 2011 at 12:01 PM, Andrew Deason <[email protected]>wrote:
> On Thu, 11 Aug 2011 10:11:27 -0400 > Aaron Knister <[email protected]> wrote: > > > I know everyone's busy, but out of curiosity has anybody had a chance > > to look at this? Could it be that it's not even an AFS bug, but a > > linux kernel issue? I'm getting ready to put a webserver into > > production and am concerned because I can reliably trigger the > > mentioned kernel panic using "ab". > > I don't think it's likely that it's a linux kernel issue. If you want > something to try, you can try applying these two patches: > > > http://git.openafs.org/?p=openafs.git;a=commitdiff_plain;h=910f3d4cbba4cd78a8e6afa0b32e37ed7f292d18 > > http://git.openafs.org/?p=openafs.git;a=commitdiff_plain;h=35835af9bb85b358e4bdd11113b637ac0e52c56b > > Those fix what may be a similar issue, but I'm not really sure if it's > the same thing as here. If that doesn't do it (it's good that you have a > reliable way of reproducing this), we'll need to look more closely at > the core (if you don't want to provide it since it probably contains > file data, instructions can probably be provided, though it's a lot more > detailed than what we've done so far). Or we can proably go the route of > giving you debug patches, but I'm not quite sure what to add quite yet. > > Hi Andrew, Those patches do prevent it from crashing, but also results in a number of "permission denied" errors from the apache processes under heavy load from ab. The permission denied errors don't occur with 1.6.0pre7. Thanks, Aaron > -- > Andrew Deason > [email protected] > > _______________________________________________ > OpenAFS-info mailing list > [email protected] > https://lists.openafs.org/mailman/listinfo/openafs-info > -- Aaron Knister Systems Administrator Division of Information Technology University of Maryland, Baltimore County [email protected]
