> try_steal_cookie() is in the loop of for_each_cpu_wrap().
> The root domain could be large and we should avoid
> stealing cookie if source rq has only one task or dst is really busy.
>
> The following patch eliminated a deadlock issue on my side if I didn't
> miss anything in v1. I'll double chec
If the hard lockup is reproducible with v2, could you please share more
details about the lockup?
Thanks
On Wed, Apr 24, 2019 at 12:18 AM Vineeth Remanan Pillai
wrote:
>
> From: Peter Zijlstra (Intel)
>
> When a sibling is forced-idle to match the core-cookie; search for
> matching tasks to fill the core.
>
> Signed-off-by: Peter Zijlstra (Intel)
> ---
> include/linux/sched.h | 1 +
> kernel/sch
From: Peter Zijlstra (Intel)
When a sibling is forced-idle to match the core-cookie; search for
matching tasks to fill the core.
Signed-off-by: Peter Zijlstra (Intel)
---
include/linux/sched.h | 1 +
kernel/sched/core.c | 131 +-
kernel/sched/idle.c
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