On Mon, 2016-05-16 at 22:47 -0500, Serge E. Hallyn wrote: > On Mon, May 16, 2016 at 10:28:32PM -0400, James Bottomley wrote: > > On Mon, 2016-05-16 at 19:41 +0000, Serge Hallyn wrote: > > > Hey James, > > > > > > I probably did something wrong - but i applied your patch onto > > > 4.6, > > > compiled in shiftfs, did > > > > > > mount -t shiftfs -o uidmap=0:100000:65536,gidmap=0:100000:65536 > > > /home/ubuntu /mnt > > > > > > and ls segfaults and gives me kernel syslog msgs like: > > > > Hm, it looks to be something IMA related, since the SUSE default is > > no > > IMA and this BUG in the filesystem is to do with the IMA version of > > i_readcount_dec. I'll recompile my kernel to see if I can > > reproduce. > > Just in case, what's the underlying filesystem on /home/ubuntu? > > It was ext4
Thanks. I've got it to reproduce with CONFIG_IMA set ... just debugging now. James
