Re: Something corrupts raid5 disks slightly during reboot

[Samium Gromoff <deepfire@sic-elvis.zel.ru>]

At Thu, 15 Jan 2004 21:57:58 +0200,
Ville Herva wrote:
> 
> On Thu, Jan 15, 2004 at 03:42:41PM +0300, you [Samium Gromoff] wrote:
> > At Thu, 15 Jan 2004 00:30:40 +0200,
> > Ville Herva wrote:
> > > 
> > > On Wed, Jan 14, 2004 at 07:39:37PM +0300, you [Samium Gromoff] wrote:
> > > > 
> > > > I know this sounds stupid, but anyway:
> > > > 
> > > > I have seen the very same symptome caused by RAM faults (too slow ram
> > > > for given clocks, to be exact).
> > > 
> > > The very same? You mean if booted, wrote few kB's of data to disk, synced,
> > > then pressed reset, the same three bytes were corrupted (set to zero) each
> > > time after reboot? 
> > 
> > No, corruption after reboot and perfect work inbetween.
> 
> Very strange. And you got rid of it by replacing the memory? 

Yeah.

> Any theories on how faulty memory could actually cause something like this?
> A bad spot in memory on an area where the bios code is cached, and hence is
> never used apart from running the bios startup (not even by memtest86)?

No idea, really :-)

> -- v --
> 
> v@iki.fi

regards, Samium Gromoff