Messages in this thread | | | Subject | Re: File system cache corruption in 2.6? | From | Martin Schlemmer <> | Date | Mon, 05 Jan 2004 23:29:19 +0200 |
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On Mon, 2004-01-05 at 14:19, Jens Axboe wrote: > On Mon, Jan 05 2004, Nathaniel W. Filardo wrote: > > Hi all, > > I'm trying to work out the cause of a series of issues I've seen > > on my 2.6 machine. It appears as though files (specifically libraries) in > > memory can get corrupted, resulting in strangeness like segfaults and > > things like "relocation error: can't find symbol ...-VOMD-POINTER" instead > > of "...-VOID-POINTER". > > That's a single bit error. > > > I don't believe it's actual hardware failure for a few reasons: memtest86 > > passes all tests, GCC doesn't crash (it's a Gentoo system, so gcc and I > > are well acquainted - and before I get jumped on, I've installed udev ;) > > ), and most importantly, sometimes thrashing the file system or engaging a > > kernel compile will rectify the situation, as just happened with emacs. > > It crashed, I killed it, it wouldn't load - I started a kernel compile, > > waited a bit, and lo', it works again. No messages of relevance appear in > > dmesg. > > It looks _extremely_ much like bad memory, or bad hardware. Sometimes > memtest just doesn't catch all errors (how long did you run it? needs > several days often).
Also, go to the options, and turn on caching, as well as all memory addresses and tests ... (keys pressed if I can remember, is:
c->1->2->2->3->3->3
should turn on above options for memtest).
-- Martin Schlemmer [unhandled content-type:application/pgp-signature] | |