Running an "isic" stresstest on and against a testbox [which, amongst other
things, generates random incoming and outgoing packets] on 2.6.17-rc3 (and
2.6.17-rc3-mm1) over gigabit results in a reproducible lockup, after 5-10
minutes of runtime:
BUG: soft lockup detected on CPU#0!
this is with FRAME_POINTERS enabled, so it's an exact stacktrace.
Original report (including test case) can be found here:
hmmm, we only support Red Hat kernels, i suggest following up on lkml. If you
can reproduce this on a Red Hat supported kernel, please re-open.
I wasn't able to reproduce this on my systems (I don't have a gigabit switch for
testing), but this doesn't mean that this issue doesn't exists in Red Hat
kernels. Looking at the source for the SCTP conntrack module, it looks similar
to the code in the Red Hat kernels based on 2.6.9.
The upstream fix can be found here:
committed in stream U4 build 36.1. A test kernel with this patch is available
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.