On Fri, Nov 14, 2014 at 01:02:59PM -0800, Andy Lutomirski wrote: > On Thu, Nov 13, 2014 at 9:25 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote: > > On Thu, Nov 13, 2014 at 04:57:11PM -0800, Andy Lutomirski wrote: > >> I'm running a kernel somewhere between 3.18-rc3 and 3.18-rc4. I got > >> the warnings below. Is this a known issue? > > > > Yup, false positive. shmem is instantiating an inode under the > > mmap_sem and in doing so taking inode locks under the mmap_sem, > > which triggers other filesystems to issue false warnings about > > mmap_sem <-> inode lock order. > > I still have an enormous flood of warnings even if > CONFIG_PROVE_LOCKING=n. This one is repeated at high frequency: > > [ 70.969118] ------------[ cut here ]------------ > [ 70.969121] WARNING: CPU: 8 PID: 653 at mm/truncate.c:758 > pagecache_isize_extended+0x105/0x110() Fixed in 3.18-rc4. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
