Re: Request for inclusion of fb90a6e93c0684 ("sched/debug: Don't dump sched debug info in SysRq-W")

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On 15.02.2017 11:13, Peter Zijlstra wrote:
> On Wed, Feb 15, 2017 at 11:09:14AM +0200, Nikolay Borisov wrote:
>> Hello,
>>
>> I'd like to ask for the patch in the subject to be included in stable
>> kernels. Without it if one wants to see only the blocked stats this
>> becomes impossible since the information dumped by sched_debug is so
>> much that it overflows the kmsg buffer and information about blocked
>> stats is overwritten. This is especially a problem in distro kernels
>> which are based on 4.4 and have enabled CONFIG_SCHED_DEBUG - e.g. ubuntu.
> 
> Who cares about the kmsg buffer? Also, just make it bigger or disable
> SCHED_DEBUG, as the name implies it _is_ a debug feature after all.

but what if you want to use your distro's kernel and deal with custom
recompiles. The kernel ought to come with sensible defaults.

> 



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