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SubjectRe: regression in 2.6.29-git3 on SH/Dreamcast
Hi Adrian,

On Mon, Mar 30, 2009 at 12:35:58AM +0100, Adrian McMenamin wrote:
> On Sun, 2009-03-29 at 20:04 +0100, Adrian McMenamin wrote:
> > While 2.6.29 boots cleanly on the Dreamcast, later revisions are likely
> > to crash with an OOM condition (this is a race, it doesn't happen on
> > every boot, but on about one in every three or four).
> >
>
> Still don't know why this timer patch is tipping the machine over, but I
> have found that if I set CONFIG_NO_HZ=y then the machine will boot with
> the patch applied.

I found that enabling swapfile support in Kconfig also reduces the frequency
of OOMs on my sh7760. While I don't experience your particular problem, my
personal observation is that since around >2.6.22 linux-sh may OOM without
actual swapspace a lot sooner (i.e. post 2.6.25 I can't even do "emerge -pv
world" without the kernel OOMing on me! This is with unreviewed platform code,
so take this info with a mountain of salt).

Manuel Lauss


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