Messages in this thread | | | Date | Tue, 30 Jul 2002 00:47:37 +0200 | From | Andrea Arcangeli <> | Subject | Re: oopsen with rc3-aa3 |
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On Tue, Jul 30, 2002 at 12:35:39AM +0200, J.A. Magallon wrote: > On 20020729 Andrea Arcangeli wrote: > > On Mon, Jul 29, 2002 at 07:42:38PM +0200, J.A. Magallon wrote: > > > Hi. > > > > > > The new code in rc3aa3 makes a dual Xeon box hang on boot just > > > when stating migration threads. I get two simultaneous oops, one > > > for migration_thread=1 and =2. Decoded oops for one of them: > > > > can you find out the exact line of C code that oopses (i.e. what it is > > supposed to be edx)? If you can't find it please send me the disassembly > > of the function load_balance, thanks. > > > > Assembler listing for load_balance attached, got by objdump -d in > /usr/src/linux/vmlinux (correct procedure ?).
it's not attached but never mind :) and yes it's the correct procedure.
btw, is it an hyperthreading cpu? Had you any problem with aa2?
> > > Also please try to reproduce with Ingo's latest, I merged a few fixes > > for the migration thread startup from his latest update. > > > > Does this mean I can merge Ingo's updates in -aa ? Don't they use any > infrastructure not present in 2.4 ?
I just merged all Ingo's updates, except the new features like SCHED_BATCH and SCHED_IDLE, I don't feel they're needed in 2.4 and now the o1 is finally stable after the last fixes that apparently improved tbench of another 10% and that should avoid the sluggish behaviour under high load in smp and now that sched_yield doesn't hang anymore by refiling to the expired queue. I only skept those two features (they're not even in 2.5 yet).
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