From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roland Dreier Subject: Re: [Bug 15095] New: ib_srp module removal triggers circular locking complaint Date: Wed, 20 Jan 2010 11:15:33 -0800 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: (bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org's message of "Wed, 20 Jan 2010 19:06:59 GMT") Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org Looks like a sysfs problem or maybe a SCSI - sysfs interaction that doesn't have much to do with ib_srp in particular. The two locks involved, namely s_active and attribute_container_mutex, are completely outside of ib_srp and are taken out of its control. This is probably triggering now because of the new commit 846f9974 ("sysfs: Add lockdep annotations for the sysfs active reference") that is tracking s_active nesting now. - R. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html