linux-kernel - Re: [PATCH] cgroup: don't queue css_release

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Message-ID: <e1f7a033-e1f2-bb52-536e-e7975ca93235@linaro.org>
Date:   Mon, 23 May 2022 13:05:31 -0700
From:   Tadeusz Struk <tadeusz.struk@...aro.org>
To:     Tejun Heo <tj@...nel.org>
Cc:     Michal Koutný <mkoutny@...e.com>,
        Hillf Danton <hdanton@...a.com>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org,
        syzbot+e42ae441c3b10acf9e9d@...kaller.appspotmail.com
Subject: Re: [PATCH] cgroup: don't queue css_release_work if one already
 pending

On 5/23/22 12:08, Tadeusz Struk wrote:
> On 5/23/22 12:02, Tejun Heo wrote:
>> Can you try holding an extra ref in the killed path?
> 
> Yes, I can try that. Should that be with or without the extra work_struct?

With this patch:
https://syzkaller.appspot.com/text?tag=Patch&x=1264b23df00000

The issue still triggers:
https://syzkaller.appspot.com/text?tag=CrashReport&x=162b5781f00000

-- 
Thanks,
Tadeusz