Re: [PATCH V2] kernel/hung_task.c: Introduce sysctl to print all traces when a hung task is detected

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 send a
new version ASAP that will work properly with all "static" sysctls - we don't
need to be blocked by a full solution for dynamically registered sysctls yet, I
guess?

Thanks,
Vlastimil

[1] https://lore.kernel.org/linux-api/20200317132105.24555-1-vbabka@suse.cz/ (local)

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 parameter (same for other patch I just submitted).

If you can CC me on the new iterations of the generic sysctl patches
Vlastimil, I appreciate - I can maybe test that, I'd like to see it in
kernel.

Thanks,


Guilherme