From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josef Bacik Subject: Re: ls hangs filesystem Date: Tue, 18 Oct 2011 09:31:37 -0400 Message-ID: <20111018133137.GB4276@localhost.localdomain> References: <4E9D7E5A.2010403@webstarts.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-btrfs@vger.kernel.org To: Jim Return-path: In-Reply-To: <4E9D7E5A.2010403@webstarts.com> List-ID: On Tue, Oct 18, 2011 at 09:25:46AM -0400, Jim wrote: > Good morning btrfs list, > I have been rsyncing files from an nfs mount to a btrfs filesystem. > After an rsync run I ls random subvols or directorys to check the > copy. About 60% to 70% of the time ls completely hangs. Ps aux > shows it as running but even when I let it go for up to an hour it > never finishes. Kill -9 will not stop the process. Dmesg shows > nothing beyond a successful mount at boot. I can't umount the > system because "filesystem is busy". I find that a forced reboot is > the only way to recapture the system. /var/log/messages has the > only indication (that I can find) that anything abnormal is > happening. A tail of the file is below. Thank you for any help and > advice. Hit sysrq+w when this happens and give us all the tracebacks. Also which kernel you are on would be helpful. Thanks, Josef