On Tue, Mar 24, 2020 at 09:45:40AM -0300, Guilherme G. Piccoli wrote:
> Thanks Randy and Vlastimil for the comments. I really liked your
> approach Vlastimil, I agree that we have no reason to not have a generic
> sysctl setting via cmdline mechanism - I'll rework this patch removing
> the kernel
On 3/23/20 10:46 PM, Guilherme G. Piccoli wrote:
> Commit 401c636a0eeb ("kernel/hung_task.c: show all hung tasks before panic")
> introduced a change in that we started to show all CPUs backtraces when a
> hung task is detected _and_ the sysctl/kernel parameter "hung_task_panic"
> is set. The idea
Hi,
On 3/23/20 2:46 PM, Guilherme G. Piccoli wrote:
>
> .../admin-guide/kernel-parameters.txt | 6
> Documentation/admin-guide/sysctl/kernel.rst | 15 ++
> include/linux/sched/sysctl.h | 7 +
> kernel/hung_task.c| 30
Commit 401c636a0eeb ("kernel/hung_task.c: show all hung tasks before panic")
introduced a change in that we started to show all CPUs backtraces when a
hung task is detected _and_ the sysctl/kernel parameter "hung_task_panic"
is set. The idea is good, because usually when observing deadlocks (that
On 24/03/2020 05:27, Vlastimil Babka wrote:
> [...]
> Before adding a new thing as both kernel parameter and sysctl, could we
> perhaps
> not add the kernel parameter, in favor of the generic sysctl parameter
> solution?
> [1] There were no objections and some support from Kees, so I will try to
