On Fri, Oct 07, 2016 at 02:56:22PM -0400, CAI Qian wrote: > > > ----- Original Message ----- > > From: "CAI Qian" <caiqian@xxxxxxxxxx> > > To: "Jan Kara" <jack@xxxxxxx>, "Miklos Szeredi" <miklos@xxxxxxxxxx>, "tj" <tj@xxxxxxxxxx>, "Al Viro" > > <viro@xxxxxxxxxxxxxxxxxx>, "Linus Torvalds" <torvalds@xxxxxxxxxxxxxxxxxxxx>, "Dave Chinner" <david@xxxxxxxxxxxxx> > > Cc: "linux-xfs" <linux-xfs@xxxxxxxxxxxxxxx>, "Jens Axboe" <axboe@xxxxxxxxx>, "Nick Piggin" <npiggin@xxxxxxxxx>, > > linux-fsdevel@xxxxxxxxxxxxxxx, "Dave Jones" <davej@xxxxxxxxxxxxxxxxx> > > Sent: Friday, October 7, 2016 11:27:55 AM > > Subject: Re: local DoS - systemd hang or timeout (WAS: Re: [RFC][CFT] splice_read reworked) > > > > > > > > > Hmm, this round of trinity triggered a different hang. > > This hang is reproducible so far with the command below on a overlayfs/xfs, > Another data point is that this hang can also be reproduced using device-mapper thinp > as the docker backend. Again, no evidence that the system is actually hung. Waiting on locks, yes, but nothing to indicate there is a deadlock in those waiters. Cheers, 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
