From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konstantinos Skarlatos Subject: Re: Btrfs: blocked for more than 120 seconds, made worse by 3.2 rc7 Date: Wed, 28 Dec 2011 22:36:12 +0200 Message-ID: <4EFB7DBC.8070601@gmail.com> References: <4EFB6D4F.6070002@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Cc: Linux Btrfs , Chris Mason To: linux-kernel@vger.kernel.org Return-path: In-Reply-To: <4EFB6D4F.6070002@gmail.com> List-ID: Well now machine2 has just crashed too... http://pastebin.com/gvfUm0az On =CE=A4=CE=B5=CF=84=CE=AC=CF=81=CF=84=CE=B7, 28 =CE=94=CE=B5=CE=BA=CE= =AD=CE=BC=CE=B2=CF=81=CE=B9=CE=BF=CF=82 2011 9:26:07 =CE=BC=CE=BC, Kons= tantinos Skarlatos wrote: > Hello all: > I have two machines with btrfs, that give me the "blocked for more=20 > than 120 seconds" message. After that I cannot write anything to disk= ,=20 > i am unable to unmount the btrfs filesystem and i can only reboot wit= h=20 > sysrq-trigger. > > It always happens when i write many files with rsync over network.=20 > When i used 3.2rc6 it happened randomly on both machines after=20 > 50-500gb of writes. with rc7 it happens after much less writes,=20 > probably 10gb or so, but only on machine 1 for the time being. machin= e=20 > 2 has not crashed yet after 200gb of writes and I am still testing th= at. > > machine 1: btrfs on a 6tb sparse file, mounted as loop, on a xfs=20 > filesystem that lies on a 10TB md raid5. mount options=20 > compress=3Dzlib,compress-force > > machine 2: btrfs over md raid 5 (4x2TB)=3D5.5TB filesystem. mount=20 > options compress=3Dzlib,compress-force > > pastebins: > > machine1: > 3.2rc7 http://pastebin.com/u583G7jK > 3.2rc6 http://pastebin.com/L12TDaXa > > machine2: > 3.2rc6 http://pastebin.com/khD0wGXx > 3.2rc7 (not crashed yet)