Messages in this thread | | | From | Gene Heskett <> | Subject | Re: Possible dcache BUG | Date | Thu, 5 Aug 2004 10:55:29 -0400 |
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On Thursday 05 August 2004 04:33, Denis Vlasenko wrote: >Hi Linus, > >On Thursday 05 August 2004 10:25, Linus Torvalds wrote: >> On Wed, 4 Aug 2004, Gene Heskett wrote: >> > I *thought* I had PREEMPT turned off, but when I did a make >> > xconfig, it was turned on. So its now off, and a new 2.6.8-rc3 >> > is building. It was frame pointers I had turned on for the last >> > build, still on for this one underway now. >> >> Your latest bug report definitely had preempt on, you could see >> the preempt code in the oops output when disassembled. >> >> Also, could you please enable CONFIG_DEBUG_BUGVERBOSE by hand if >> you use the -mm tree, since you definitely hit a BUG() in there >> somewhere, but in the -mm tree, the BUG() message is totally >> unreadable unless you enable BUGVERBOSE (and it's not in the >> config file). > >It is not a BUG(). > >It's an oops (dereferencing a d_op pointer with value 0x00000900+14 >IIRC, Gene has complete disassembly with location of that event).
Unforch Denis, this is 2.6.8-rc3, the stuff we dissed was from 2.6.7, where it can be hit without (usually that is) killing the machine instantly. From 2.6.7-mm1 on, the death seems generally sudden and instant, generally no logs get written at all.
>It is not reproducible on request, but happens for him from time >to time in the same place with the same bogus value of d_op.
-- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) 99.24% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attorneys please note, additions to this message by Gene Heskett are: Copyright 2004 by Maurice Eugene Heskett, all rights reserved. - 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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