----- Original Message ----- > From: "Dave Chinner" <david@xxxxxxxxxxxxx> > To: "CAI Qian" <caiqian@xxxxxxxxxx> > Cc: "linux-xfs" <linux-xfs@xxxxxxxxxxxxxxx>, "Linus Torvalds" <torvalds@xxxxxxxxxxxxxxxxxxxx>, "Al Viro" > <viro@xxxxxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx > Sent: Friday, September 2, 2016 8:39:19 PM > Subject: Re: xfs_file_splice_read: possible circular locking dependency detected > > On Fri, Sep 02, 2016 at 01:02:16PM -0400, CAI Qian wrote: > > Spice seems start to deadlock using the reproducer, > > > > https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/syscalls/splice/splice01.c > > > > This seems introduced recently after v4.8-rc3 or -rc4, so suspect this xfs > > update was one to blame, > > > > 7d1ce606a37922879cbe40a6122047827105a332 > > Nope, this goes back to the splice rework back around ~3.16, IIRC. Right. FYI, revert the commit below fixes the regression, 8d02076 : ->splice_write() via ->write_iter() CAI Qian _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
