From: Peter Zijlstra <peterz@infradead.org>
To: Waiman Long <longman@redhat.com>
Cc: Dmitry Vyukov <dvyukov@google.com>,
syzbot <syzbot+a9fb1457d720a55d6dc5@syzkaller.appspotmail.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
allison@lohutok.net, areber@redhat.com,
aubrey.li@linux.intel.com, Andrei Vagin <avagin@gmail.com>,
Bruce Fields <bfields@fieldses.org>,
Christian Brauner <christian@brauner.io>,
cyphar@cyphar.com, "Eric W. Biederman" <ebiederm@xmission.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
guro@fb.com, Jeff Layton <jlayton@kernel.org>,
Joel Fernandes <joel@joelfernandes.org>,
Kees Cook <keescook@chromium.org>,
linmiaohe@huawei.com,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Michal Hocko <mhocko@suse.com>, Ingo Molnar <mingo@kernel.org>,
Oleg Nesterov <oleg@redhat.com>,
sargun@sargun.me,
syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
Thomas Gleixner <tglx@linutronix.de>,
Al Viro <viro@zeniv.linux.org.uk>,
Boqun Feng <boqun.feng@gmail.com>
Subject: Re: possible deadlock in send_sigio
Date: Thu, 11 Jun 2020 16:22:14 +0200 [thread overview]
Message-ID: <20200611142214.GI2531@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <88c172af-46df-116e-6f22-b77f98803dcb@redhat.com>
On Thu, Jun 11, 2020 at 09:51:29AM -0400, Waiman Long wrote:
> There was an old lockdep patch that I think may address the issue, but was
> not merged at the time. I will need to dig it out and see if it can be
> adapted to work in the current kernel. It may take some time.
Boqun was working on that; I can't remember what happened, but ISTR it
was shaping up nice.
next prev parent reply other threads:[~2020-06-11 14:23 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-04 5:55 possible deadlock in send_sigio syzbot
2020-06-11 2:32 ` Waiman Long
2020-06-11 7:43 ` Dmitry Vyukov
2020-06-11 13:51 ` Waiman Long
2020-06-11 14:22 ` Peter Zijlstra [this message]
2020-06-11 16:09 ` Waiman Long
2020-06-11 23:55 ` Boqun Feng
2020-06-12 1:55 ` Waiman Long
2020-06-12 7:01 ` Boqun Feng
2020-06-15 16:37 ` Waiman Long
2020-06-15 16:49 ` Matthew Wilcox
2020-06-15 17:13 ` Waiman Long
2020-06-15 20:40 ` Matthew Wilcox
2020-06-16 0:13 ` Boqun Feng
2020-06-16 0:31 ` Waiman Long
2020-06-11 16:07 ` Eric W. Biederman
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