* Luiz Fernando N. Capitulino <[email protected]> wrote:
> | > git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched.git
> | >
> | > It has another commit besides this fix. Thanks,
> |
> | Can you make up something that I can apply for 2.6.23-stable? or is
> | this not an issue on that tree?
>
> FWIW I couldn't reproduce the problem with 2.6.23.9. sched_slice() is
> quite different on that kernel and _maybe_ it won't never divide by
> zero.
no, this is due to a fairly recent commit, so 2.6.23 should not be
affected. (We cleaned up sched_rr_interval() in one of the 2.6.24
scheduler commits.)
> My original report on vendor-sec was wrong. I've said that 2.6.23.9
> had the same bug but turns out the kernel I tested had the Ingo's CFS
> backport patch applied. I didn't know that, I thought it was a vanilla
> kernel.
>
> Btw, I think it's important to release a new CFS backport patch
> because maybe some distro is using it (Mandriva stable kernel is using
> the CFS backport patch, but we didn't update to latest version yet).
this should only affect the v24 CFS version - i've updated the v24
backport patches. sched_rr_interval() is almost never used, and it's
basically never used for SCHED_OTHER tasks.
Ingo
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