Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1503014

Re: regression since 4.8 and newer in select_idle_siblings()

From Mike Galbraith <efault@gmx.de>
Newsgroups linux.kernel
Subject Re: regression since 4.8 and newer in select_idle_siblings()
Date 2016-10-18 16:10 +0200
Message-ID <stDfz-2Jc-7@gated-at.bofh.it> (permalink)
References <stCWe-2lM-41@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Tue, 2016-10-18 at 15:40 +0200, Igor Mammedov wrote:
> kernel crashes at runtime  due null pointer dereference at
>   select_idle_sibling()
>      -> select_idle_cpu()
>          ...
>          u64 avg_cost = this_sd->avg_scan_cost;
> 
> regression bisects to:
>   commit 10e2f1acd0106c05229f94c70a344ce3a2c8008b
>   Author: Peter Zijlstra <peterz@infradead.org>
>   sched/core: Rewrite and improve select_idle_siblings()

http://git.kernel.org/tip/9cfb38a7ba5a9c27c1af8093fb1af4b699c0a441

Already fixed, and will land in Linus' tree soon.

	-Mike

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

regression since 4.8 and newer in select_idle_siblings() Igor Mammedov <imammedo@redhat.com> - 2016-10-18 15:50 +0200
  Re: regression since 4.8 and newer in select_idle_siblings() Mike Galbraith <efault@gmx.de> - 2016-10-18 16:10 +0200
    Re: regression since 4.8 and newer in select_idle_siblings() Igor Mammedov <imammedo@redhat.com> - 2016-10-18 17:00 +0200

csiph-web