On 24.04.2015 19:42, Andrew Morton wrote: > On Thu, 23 Apr 2015 14:25:38 +0800 Huang Ying <[email protected]> wrote: > >> FYI, we noticed the below changes on >> >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> commit 66ba93c0d7fe63def447ad0afe380307ff9ebcad ("fanotify: don't set >> FAN_ONDIR implicitly on a marks ignored mask") >> >> When doing LTP test. Test system hang after doing some fanotify test cases, >> while system >> can run to reboot in the parent comments. > > Thanks. I've queued a reversion patch. I'll hold off sending it to > Linus for a while, to see if we can get this fixed up. > > > What does "hang" mean? Was the machine all locked up? Or is it the > case that the particular LTP test failed to complete? I suspect the > latter - that the new notify behaviour is differing from LTP's > expectation in some fashion? >
Hi, I think your suspicion is right, it looks like an issue that has been reported a few weeks ago: http://marc.info/?l=linux-kernel&m=142688498719023&w=2 The reason was not in kernel code though (as assumed by the reporter) but a missing FAN_ONDIR in the code of the fanotify02 test case (that flag was not needed before since it was set implicitly under certain conditions - see the commit message of 66ba93c0d7fe63def447ad0afe380307ff9ebcad for details). The code has been fixed in the latest version of LTP. I tested fanotify with this version (20150420) and all tests passed. Huang could it be that you did not use the latest LTP? Regards, Lino -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
