From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:45843 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753348AbaGBOPq (ORCPT ); Wed, 2 Jul 2014 10:15:46 -0400 Message-ID: <53B4140C.8060406@fb.com> Date: Wed, 2 Jul 2014 10:15:40 -0400 From: Chris Mason MIME-Version: 1.0 To: Cody P Schafer CC: Chris Samuel , Subject: Re: Blocked tasks on 3.15.1 References: <52e3cfababa49919100759860b59aa7c@admin.virtall.com> <4623589E-3298-4980-A257-665CFA9FB61B@colorremedies.com> <3081460.dX0cLeJPhK@quad> <53B1A862.50503@fb.com> <53B1ACAA.5040505@fb.com> <53B32275.6010200@fb.com> <53B40FEC.4030902@fb.com> In-Reply-To: <53B40FEC.4030902@fb.com> Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 07/02/2014 09:58 AM, Chris Mason wrote: > On 07/02/2014 08:27 AM, Cody P Schafer wrote: > >>> Will do. The rsync I'm running is processing a lot of chromium cache >>> files when it hangs (just for a reference), and ends up triggering a >>> bunch of deletes as well. >> >> Still a problem with your v3.15.y (eb97581), here's the log with >> sysrq-t and sysrq-l >> https://urldefense.proofpoint.com/v1/url?u=http://bpaste.net/show/428234/&k=ZVNjlDMF0FElm4dQtryO4A%3D%3D%0A&r=6%2FL0lzzDhu0Y1hL9xm%2BQyA%3D%3D%0A&m=9lRzEuxWeyHtsDXvFJNWlf2CgKZWZ1w%2FScqbUMy1jII%3D%0A&s=0daa1232bef652c4f16c9d12cdad408909feaa5069ba3c1888fa4895e01ec3a2 >> >> Also, correction, it's a firefox cache dir rsync that seems to trigger >> it (stalls pretty early on and very consistently): >> >> [... snip ...] >> .cache/mozilla/firefox/kqtl1tlc.test/Cache/7/1F/F43F9d01 >> 5.23M 100% 17.82MB/s 0:00:00 (xfr#452, ir-chk=1201/6659) >> .cache/mozilla/firefox/kqtl1tlc.test/Cache/7/20/ >> .cache/mozilla/firefox/kqtl1tlc.test/Cache/7/20/23A66d01 >> 116.82K 100% 376.50kB/s 0:00:00 (xfr#453, ir-chk=1200/6659) >> .cache/mozilla/firefox/kqtl1tlc.test/Cache/7/21/ >> .cache/mozilla/firefox/kqtl1tlc.test/Cache/7/23/ >> .cache/mozilla/firefox/kqtl1tlc.test/Cache/7/24/ >> .cache/mozilla/firefox/kqtl1tlc.test/Cache/7/25/ >> .cache/mozilla/firefox/kqtl1tlc.test/Cache/7/25/7C836d01 >> [... stall here ...] >> > > Ok, and just to clarify, are you actively using the files on the > destination outside of rsync? Also, do you have compression on? -chris