Re: [PATCH v7 4/8] sched: nominate preferred wakeup cpu

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxx> wrote:

> > [   74.013893]  <EOI> <0>Code: 8b 47 08 4a 8b 0c 00 48 85 c9 0f 84 c3 00 00 00 49 8b 47 10 4a 8b 04 00 48 8b 80 a8 00 00 00 48 85 c0 74 13 48 0f af 45 c8 31 d2 <48> f7 75 c0 49 89 c6 48 89 c6 eb 16 48 63 55 d0 48 8b 45 c8 45 
> > [   74.013893] RIP  [<ffffffff802375d8>] tg_shares_up+0x113/0x1f1
> > [   74.013893]  RSP <ffff88025e057d88>
> > [   74.020022] ---[ end trace 2fc4046e394f2312 ]---
> > [   74.020188] Kernel panic - not syncing: Fatal exception in interrupt
> > 
> > config: http://userweb.kernel.org/~akpm/config-akpm2.txt
> > 
> > I'll try hacking some div-by-zero avoidance into update_group_shares_cpu().
> 
> hm, weird - Yinghai noticed this crash in -tip and we have that patch 
> zapped from all -*-next branches already.

I guess you applied Ken's patch from email and had it in -mm? We have a 
new version of that patch from Ken now based on Yinghai's bugreport - only 
lightly tested for now.

	Ingo

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