On Mon, Oct 10, 2016 at 10:10:29AM -0400, CAI Qian wrote: > > > ----- Original Message ----- > > From: "Dave Chinner" <david@xxxxxxxxxxxxx> > > To: "CAI Qian" <caiqian@xxxxxxxxxx> > > Cc: "Jan Kara" <jack@xxxxxxx>, "Miklos Szeredi" <miklos@xxxxxxxxxx>, "tj" <tj@xxxxxxxxxx>, "Al Viro" > > <viro@xxxxxxxxxxxxxxxxxx>, "Linus Torvalds" <torvalds@xxxxxxxxxxxxxxxxxxxx>, "linux-xfs" > > <linux-xfs@xxxxxxxxxxxxxxx>, "Jens Axboe" <axboe@xxxxxxxxx>, "Nick Piggin" <npiggin@xxxxxxxxx>, > > linux-fsdevel@xxxxxxxxxxxxxxx, "Dave Jones" <davej@xxxxxxxxxxxxxxxxx> > > Sent: Sunday, October 9, 2016 5:54:55 PM > > Subject: Re: local DoS - systemd hang or timeout (WAS: Re: [RFC][CFT] splice_read reworked) > > > > Again, no evidence that the system is actually hung. Waiting on > > locks, yes, but nothing to indicate there is a deadlock in those > > waiters. > Here you are, > > http://people.redhat.com/qcai/tmp/dmesg It's a page lock order bug in the XFS seek hole/data implementation. -Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
