linux-kernel - [PATCH 0/2]: Fixing unkillable processes caused by SIGHUP timers

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Message-ID: <875ztwt7yy.fsf_-_@xmission.com>
Date:   Thu, 07 Feb 2019 00:42:45 -0600
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        jolsa@...hat.com, Namhyung Kim <namhyung@...nel.org>,
        luca abeni <luca.abeni@...tannapisa.it>,
        syzkaller <syzkaller@...glegroups.com>,
        Oleg Nesterov <oleg@...hat.com>
Subject: [PATCH 0/2]: Fixing unkillable processes caused by SIGHUP timers


Dmitry,

Can you please verify the follow two patches.  The first one is a
simplification of the one you have already tested and makes the
processes killable.  The second patch improves our heuristic for
detecting synchronous like SIGSEGV when the stack overflows allowing us
to process them before SIGHUP.

Eric W. Biederman (2):
      signal: Always notice exiting tasks
      signal: Better detection of synchronous signals