From: Oleg Nesterov <oleg@redhat.com>
To: Michal Hocko <mhocko@kernel.org>
Cc: syzbot <syzbot+b70f2aabc707c69c9239@syzkaller.appspotmail.com>,
chanho.min@lge.com, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, pavel@ucw.cz,
rafael.j.wysocki@intel.com, syzkaller-bugs@googlegroups.com,
viro@zeniv.linux.org.uk, Ingo Molnar <mingo@elte.hu>
Subject: Re: WARNING: syz-executor still has locks held!
Date: Thu, 21 Mar 2019 18:28:33 +0100 [thread overview]
Message-ID: <20190321172833.GB12297@redhat.com> (raw)
In-Reply-To: <20190320203216.GF8696@dhcp22.suse.cz>
On 03/20, Michal Hocko wrote:
>
> So we need
> freezable_schedule_unsafe unsafe here to workaround the original problem
> and do not trigger the warning.
Yes, but note the comment above freezable_schedule_unsafe() ;)
that is why I didn't even try to suggest to use _unsafe() instead of reverting.
And to remind, until we solve the problem with cred_guard_mutex the freezer
can fail anyway although much less likely.
Oleg.
next prev parent reply other threads:[~2019-03-21 17:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-24 17:40 WARNING: syz-executor still has locks held! syzbot
2019-03-20 12:24 ` syzbot
2019-03-20 13:16 ` Michal Hocko
2019-03-20 13:24 ` Oleg Nesterov
2019-03-20 13:29 ` Michal Hocko
2019-03-20 15:00 ` Oleg Nesterov
2019-03-20 15:12 ` Michal Hocko
2019-03-20 17:30 ` Oleg Nesterov
2019-03-20 19:45 ` Michal Hocko
2019-03-20 20:32 ` Michal Hocko
2019-03-21 17:28 ` Oleg Nesterov [this message]
2019-03-22 10:36 ` Michal Hocko
2019-03-22 10:35 ` Pavel Machek
2019-03-20 13:18 ` Oleg Nesterov
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