Messages in this thread |  | | Date | Tue, 10 Jun 2003 22:06:02 -0700 | From | "Martin J. Bligh" <> | Subject | Re: 2.5.70 (virgin) hangs running SDET |
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>> OK, well backing out dcache_lock-vs-tasklist_lock-take-3.patch does >> indeed seem to fix the problem. It's done 5.5 whole cycles now, and >> still going strong. > > Well that patch fixed a real bug. It abviously added or exposed another > one though.
Yeah, wasn't suggesting actually removing it - was just trying to narrow it down some more.
> I continue to wonder if that task_struct is scrogged. There seem to be no > other processes holding the lock. > > Might be interesting to give the below patch a run with memory debug > enabled. > > Also spinlock debugging enabled. It would be nice to run with preempt and > sleep-in-spinlock debugging enabled too, but I think preempt is broken on > NUMA?
OK, did that. your patches + debug up the wazoo. Bugger all output, and a hang that looks similar, but the culprit is hiding even more, as far as I can't see ;-(
File too big. zipped, attatched. sorry. I'll make a better attempt at it tommorow, and I'll try to put some effort into it for once ;-)
M.
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