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Message-ID: <5330D15E.2000702@oracle.com> Date: Mon, 24 Mar 2014 20:44:14 -0400 From: Sasha Levin <sasha.levin@...cle.com> To: Jan Kara <jack@...e.cz> CC: Al Viro <viro@...IV.linux.org.uk>, linux-fsdevel@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>, Linus Torvalds <torvalds@...ux-foundation.org> Subject: Re: fs: gpf in simple_setattr On 03/24/2014 05:48 PM, Jan Kara wrote: >> >[ 339.948946] ** 4194304 ffff8805ac03ba38 [eventpoll] ffff8806ec051fe0 >> >[eventpoll] ffffffff84666040 ffff88056c73e7b0 (null) > OK, great. So finally we have something useful. We know we have problems > with [eventpoll] dentry. That is actually a special filesystem not mounted > anywhere - likely you get to that dentry through/proc/<pid>/fd/. Now > eventpoll is interesting because it uses single anon inode for all > eventpoll instances. And that inode should stay in place as long as > eventpoll filesystem exists. So it's not clear how come that inode is > freed. The basic check of handling of inode use count didn't find anything > suspicious. But I can check in more detail and if I fail, we now have a > pretty narrow area where to look... Seems like it's not specific to eventpoll, I saw the same error message with "eventfd" and "perf_event". Thanks, Sasha -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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