linux-kernel - Re: [QUESTION] Hung task warning while running syzkaller test

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Date:   Fri, 25 Oct 2019 20:50:18 +0800
From:   Zhihao Cheng <chengzhihao1@...wei.com>
To:     Valentin Schneider <valentin.schneider@....com>,
        LKML <linux-kernel@...r.kernel.org>, <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        <patrick.bellasi@....com>, <tglx@...utronix.de>
CC:     Kefeng Wang <wangkefeng.wang@...wei.com>,
        "zhangyi (F)" <yi.zhang@...wei.com>
Subject: Re: [QUESTION] Hung task warning while running syzkaller test

I added config in attachment.

It will take 5-10 minutes to reproduce on the kernel of the lower version(for example, v4.4). And ftrace may need to be enabled for the latest mainline to reproduce hung_task, it will take several hours.


在 2019/10/24 21:48, Valentin Schneider 写道:
> I did try to run that but kept hitting cgroup config options that aren't
> enabled in my defconfig - I gave up after net_cls, net_prio and the freezer.

View attachment "config" of type "text/plain" (155929 bytes)