From: Peter Zijlstra <peterz@infradead.org>
To: Nikolay Borisov <n.borisov.lkml@gmail.com>
Cc: stable@vger.kernel.org, rabinv@axis.com, Ingo Molnar <mingo@kernel.org>
Subject: Re: Request for inclusion of fb90a6e93c0684 ("sched/debug: Don't dump sched debug info in SysRq-W")
Date: Wed, 15 Feb 2017 10:13:29 +0100 [thread overview]
Message-ID: <20170215091329.GN3093@worktop> (raw)
In-Reply-To: <0d90e505-aef8-4eea-1740-6ece6bfea9ea@gmail.com>
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.
next prev parent reply other threads:[~2017-02-15 9:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-15 9:09 Request for inclusion of fb90a6e93c0684 ("sched/debug: Don't dump sched debug info in SysRq-W") Nikolay Borisov
2017-02-15 9:12 ` Ingo Molnar
2017-02-15 9:13 ` Peter Zijlstra [this message]
2017-02-15 9:17 ` Nikolay Borisov
2017-02-15 17:07 ` Greg KH
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