Re: Perform minimal RAM test at boot

Pavel Machek (pavel@suse.cz)
Mon, 1 Nov 1999 16:23:46 +0100


Hi!

> > Nice. But it my eyes it should panic, not try to mark pages reserved
> > and continue. If there's one error, there may be undetected errors
> > nearby. I'd suggest panic() and forcing user deal with that.
>
> You're very right.
>
> GOOD memory tests find all errors that can be modelled. (i.e. a bit
> flipping from 1->0 if an adjacent cell goes from 0->1...) I'm not sure
> wether the implemented test is OK in that respect, but feel free to
> look in drivers/char/sx.c for a very reasonable memory test
> (marchB).

Notice that I'm really looking for minimal ram test to catch errors in
detecting ram. RAM detection errors seem to be pretty common. I.e. my
toshiba used ROM for write-back buffers, and you can imagine what fsck
did after reboot.
Pavel
PS: 50 files lost in 5 minutes, not good.

-- 
The best software in life is free (not shareware)!		Pavel
GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+

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