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Message-ID: <20171211105306.52cdf62f@vmware.local.home> Date: Mon, 11 Dec 2017 10:53:06 -0500 From: Steven Rostedt <rostedt@...dmis.org> To: Sebastian Andrzej Siewior <bigeasy@...utronix.de> Cc: linux-kernel@...r.kernel.org, linux-rt-users <linux-rt-users@...r.kernel.org>, Thomas Gleixner <tglx@...utronix.de>, Carsten Emde <C.Emde@...dl.org>, John Kacur <jkacur@...hat.com>, Paul Gortmaker <paul.gortmaker@...driver.com>, Julia Cartwright <julia@...com>, Daniel Wagner <daniel.wagner@...mens.com>, tom.zanussi@...ux.intel.com, Alex Shi <alex.shi@...aro.org>, stable-rt@...r.kernel.org Subject: Re: [PATCH RT 1/9] Revert "fs: jbd2: pull your plug when waiting for space" On Mon, 11 Dec 2017 16:37:09 +0100 Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote: > > Now it does appear I'm missing that for 4.4. I wonder why I didn't pull > > it in there. Perhaps it wasn't needed, which means this isn't needed > > either. > > I strongly suggest to include "locking/rt-mutex: fix deadlock in device > mapper / block-IO". We had a workaround in the jbd/ext3 code which then > moved into jbd2/ext4 after people complained about the same problem. I > wasn't sure about the root-cause back then but now with explanation we > have in the fix patch I'm sure this is one of the bugs we have since day > one. Yep. Not sure why I didn't include it in 4.4. I added it to my queue, and started testing it, which is one of the reasons I haven't posted it yet. Also, my internet connectivity has be really poor while traveling this time. -- Steve
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