linux-kernel - [PATCH 0/2] warn about allocations which stall for too long

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Date:   Thu, 29 Sep 2016 10:44:05 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Johannes Weiner <hannes@...xchg.org>, Mel Gorman <mgorman@...e.de>,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
        Dave Hansen <dave.hansen@...el.com>, <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 0/2] warn about allocations which stall for too long

Hi,
it seems there was no fundamental opposition to my previous RFC [1]
so I am sending this again now to be considered for inclusion. I have
reworked the patch slightly and made it use the already existing
warn_alloc_failed which was updated and renamed to be more generic. This
is the patch 1. The patch 2 then simply uses it to warn about long
stall. Comparing to the previous patch it also does show_mem() which
might be really helpful to see why the allocation cannot make any
progress.

[1] http://lkml.kernel.org/r/20160923081555.14645-1-mhocko@kernel.org