From: hch@infradead.org (Christoph Hellwig)
Subject: nvmet: Kernel v4.19-rc4 circular locking complaint
Date: Tue, 25 Sep 2018 16:27:45 -0700 [thread overview]
Message-ID: <20180925232745.GA28388@infradead.org> (raw)
In-Reply-To: <1537465780.224533.19.camel@acm.org>
On Thu, Sep 20, 2018@10:49:40AM -0700, Bart Van Assche wrote:
> Hello,
>
> Here is another complaint that appeared while running the nvmeof-mp tests.
> Sagi, I have Cc-ed you because I think that this complaint may be related
> to the flush_scheduled_work() call that was inserted in
> nvmet_rdma_queue_connect() by commit 777dc82395de ("nvmet-rdma: occasionally
> flush ongoing controller teardown"). It seems weird to me that work is
> flushed from the context of an RDMA/CM handler, which is running in the
> context of a work item itself.
Yes, this seems pretty dangerous. For now I'm tempted to revert the
commit. Sagi?
next prev parent reply other threads:[~2018-09-25 23:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 17:49 nvmet: Kernel v4.19-rc4 circular locking complaint Bart Van Assche
2018-09-25 23:27 ` Christoph Hellwig [this message]
2018-09-26 5:38 ` Sagi Grimberg
2018-09-27 15:42 ` Bart Van Assche
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