Messages in this thread | | | Date | Mon, 24 Mar 2014 20:44:14 -0400 | From | Sasha Levin <> | Subject | Re: fs: gpf in simple_setattr |
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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
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