On Fri, Nov 14, 2014 at 1:50 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote: > 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. Yeah, I just confirmed that, too. Thanks. (The lockdep splat is still there, but that's much less annoying.) --Andy > > Cheers, > > Dave. > -- > Dave Chinner > david@xxxxxxxxxxxxx -- Andy Lutomirski AMA Capital Management, LLC _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
