Messages in this thread | | | Date | Mon, 5 Sep 2005 13:23:54 -0400 (EDT) | From | Justin Piszcz <> | Subject | Re: Linux Kernel 2.6.13-rc7 (WORKS) (2.6.13, DRQ/System CRASH) |
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Also,
Part of the problem may be that I have two ATA/133 Promise cards in one box and only one ATA/133 in the other box.
Kernel 2.6.13 has fixed the problem with one ATA/133 card in the box. Kernel 2.6.13 has not fixed the problem with two ATA/133 cards in the box.
FYI
Justin.
On Mon, 5 Sep 2005, Alan Cox wrote:
> On Llu, 2005-09-05 at 09:26 +0200, Bartlomiej Zolnierkiewicz wrote: >> After DMA timeout driver reverted back to PIO, >> ide-taskfile.c also holds PIO code besides IDE Taskfile Access. > > > On SMP after a DMA timeout it will potentially freeze. There are some > paths in that code which lead to double lock takes and hangs, plus some > timer races. > > Justin can you make a backup (I mean that seriously), then build a > kernel with spin lock debug enabled and see if you can reproduce the > problem and get a trace. > > If its the locking you'll get a trace and the kernel will continue. At > that point because the spinlock debug continues unsafely through a > double lock after the trace you are in the "danger zone" hence the > backup warning > > [Yes the spin lock debug code really should warn you its dangerous for > non debug uses or get patched as it is in Fedora to trace and stop] > > If its a hardware or other problem it will still hang > > if its an unrelated lock problem it should still get a trace. > > > Why you see this only on 2.6.13 not 2.6.13-rc7 I don't know. It makes me > wonder if you have a bad drive - but then you imply going back to rc7 > goes back to stable. Can you therefore also check the .config options > between the two kernels match. > > Alan > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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