Re: 2.1.124: ext2fs corruption and kernel panic

Alan Cox (alan@lxorguk.ukuu.org.uk)
Sat, 17 Oct 1998 19:03:46 +0100 (BST)


> The strange thing is that shared libs are opened for reading only, so
> file corruption should not be possible. Maybe it's in the (triton IDE-dma)
> block driver.

the IDE/DMA problems coming from old WD hardware may affect read, however
I've got no reports that even hint at that ever being the case, and WD
dont say a lot except how to apply the firmware update.

> > Me not being an fs expert (far from it) I wonder what makes you so sure
> > it was in the cache? Config.h was one of the files (Makefile was the
> > other, i was editing both) that was 'hit' by the error and fsck found an
> > error in that file's inode.

If the dirty bits get corrupted as well as data then junk will get written
back - any OS, any kernel.

There are certainly a couple of memory corruption bugs left in 2.1.12x. One
of them is in the bttv driver when capturing to main memory. Its extermination
is in progress

Alan

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