On Sat, Oct 07, 2017 at 04:25:22AM +0000, Hin-Tak Leung wrote: > > -------------------------------------------- > On Sat, 7/10/17, Ernesto A. Fernández <ernesto.mnd.fernandez@xxxxxxxxx> wrote: > > > A segmentation fault can be triggered by setting many xattrs > > to a file > > and then deleting it. The number must be high enough for > > more than one > > b-tree node to be needed for storage. > > Sounds like it is easily/reliably reproducible - do you have an estimate/recipe of how many xattrs minimum to trigger this problem, to test and verify this fix? I did not give a number because it depends on the size of the xattrs, and I imagine the bnode size as well, though I only tested it with the default mkfs options. Maybe I should have shared the script I used instead: touch test.file i=1 while [ $i -le 250 ]; do setfattr -n user.$i test.file ((++i)) done rm test.file Of course, if you set a value to the xattrs you will need fewer. > Thanks a lot for the work! And thank you for your attention. > Hin-Tak > > Ernest