From: Jens Axboe <axboe@kernel.dk>
To: zhenguo yao <yaozhenguo1@gmail.com>
Cc: oleg@redhat.com, linux-kernel@vger.kernel.org, yaozhenguo@jd.com
Subject: Re: [PATCH] task_work: return -EBUSY when adding same work
Date: Sun, 11 Jul 2021 20:44:20 -0600 [thread overview]
Message-ID: <db2410e2-1f1a-b396-10d1-1df3ec061b78@kernel.dk> (raw)
In-Reply-To: <CA+WzARnFgohHZ=BhL4OaCagB_c1uB6a=Bv7vM_zRUJeANHksEg@mail.gmail.com>
On 7/11/21 8:13 PM, zhenguo yao wrote:
> Yes I hit this condition. The caller is queue_task_work in
> arch/x86/kernel/cpu/mce/core.c.
> It is really a BUG. I have submitted another patch to fix it:
> https://lkml.org/lkml/2021/7/9/186.
That patch seems broken, what happens if mce_kill_me is added already,
but it isn't the first work item in the list?
--
Jens Axboe
next prev parent reply other threads:[~2021-07-12 2:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-09 12:27 yaozhenguo
2021-07-09 14:18 ` Jens Axboe
[not found] ` <CA+WzARnFgohHZ=BhL4OaCagB_c1uB6a=Bv7vM_zRUJeANHksEg@mail.gmail.com>
2021-07-12 2:44 ` Jens Axboe [this message]
2021-07-12 3:45 ` zhenguo yao
2021-07-12 9:08 ` zhenguo yao
2021-07-13 10:41 ` David Laight
2021-07-13 20:22 ` Jens Axboe
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