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Message-ID: <498C9876.3060208@redhat.com> Date: Fri, 06 Feb 2009 14:07:18 -0600 From: Eric Sandeen <sandeen@...hat.com> To: Alexander Beregalov <a.beregalov@...il.com> CC: "linux-next@...r.kernel.org" <linux-next@...r.kernel.org>, linux-ext4@...r.kernel.org, LKML <linux-kernel@...r.kernel.org> Subject: Re: next-20090206: deadlock on ext4 Alexander Beregalov wrote: > 2009/2/6 Eric Sandeen <sandeen@...hat.com>: >> Alexander Beregalov wrote: >>> Hi >>> >>> I run dbench on ext4 on loop device. >>> >>> EXT4-fs: barriers enabled >>> kjournald2 starting: pid 2420, dev loop0:8, commit interval 5 seconds >>> EXT4 FS on loop0, internal journal on loop0:8 >>> EXT4-fs: delayed allocation enabled >>> EXT4-fs: file extents enabled >>> EXT4-fs: mballoc enabled >>> EXT4-fs: mounted filesystem loop0 with ordered data mode >>> JBD: barrier-based sync failed on loop0:8 - disabling barriers >>> >>> INFO: task pdflush:2339 blocked for more than 120 seconds. >> Looks a lot like a bug I filed: >> >> http://bugzilla.kernel.org/show_bug.cgi?id=12579 >> >> but I'm having trouble reproducing it, now. I'll try dbench! > Yes, I can reproduce it easy with dbench. Do you only hit it on loopback? What is the filesystem hosting the loop file? Thanks, -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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