On Tue, May 17, 2011 at 06:01:14PM +0300, Amir Goldstein wrote: > On Tue, May 17, 2011 at 5:32 PM, Eric Sandeen <sandeen@xxxxxxxxxx> wrote: > > On 5/17/11 4:03 AM, Yongqiang Yang wrote: > >> Hi, > >> > >> I noticed that all tests which contain 'device busy' errors have > >> falloc operations. Does the error have something to do with falloc? <shrug> Perhaps a bit more detail about what you are testing, how you've set up xfstests, etc, and some analysis of the problem is in order first? > > cc'ing xfs list since xfs devs maintain xfstests. > > > > What tests have "device busy" errors? What do the usual investigative > > steps such as "lsof" and "fuser" tell you when this happens? > > I tried running lsof | grep $TEST_DIR before umount > and I tried sleep 1 before umount and it didn't yield anything. Which usually indicates that you've got some kind of reference counting problem preventing the filesystem from being unmounted. > > Are there loop devices that didn't get cleaned up, or processes that > > have not terminated? > > > > What tests have these problems? > > for me 124 always fails to umount, and 198 and 213 sometimes fails to umount. What, exactly, are you testing on? test 124 uses XFS_IOC_RESVSP directly, not fallocate(), so all it is doing on a non-XFS filesystem is iterating a loop that writes a 1MB file, reads it back then unlinks it.... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
