From: Jan Kara Subject: Re: [GIT PULL] ext4 changes for 4.2-rc1 Date: Mon, 29 Jun 2015 10:27:03 +0200 Message-ID: <20150629082703.GB11013@quack.suse.cz> References: <20150625034626.GA21682@thunk.org> <20150627040237.GC474@thunk.org> <20150627140743.GF474@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Linus Torvalds , Jan Kara , Linux Kernel Mailing List , "linux-ext4@vger.kernel.org" To: Theodore Ts'o Return-path: Content-Disposition: inline In-Reply-To: <20150627140743.GF474@thunk.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On Sat 27-06-15 10:07:43, Ted Tso wrote: > On Sat, Jun 27, 2015 at 12:02:37AM -0400, Theodore Ts'o wrote: > > > > I would tend to agree. The weird thing though is that I haven't seen > > this problem myself, despite running multiple regression tests before > > I sent the pull request, as well as running it on my laptop and doing > > kernel compiles with make -j16 and reading e-mail (I'm typing this > > e-mail on a 4.1 kernel merged with the ext4 patches for this merge > > window, so I have this commit running in my development laptop, and it > > hasn't triggered for me). > > Update: I've been able to reproduce the crash using a post merge > kernel (of course, I had to use CONFIG_SLUB since CONFIG_SLAB is > busted) a single time. Unfortunately, I've not been able to reproduce > it reliably so I can't speak to whether reverting 2143c1965a76 will > fix things. But it does seem very likely. Sure, I agree with the revert Linus did. That's the best we can do now. I'm now trying to figure out what could have gone wrong. Honza -- Jan Kara SUSE Labs, CR