On Wed, Sep 23, 2015 at 04:50:53PM +0300, Artem Bityutskiy wrote: > On Wed, 2015-09-23 at 15:49 +0300, Artem Bityutskiy wrote: > > On Tue, 2015-07-21 at 23:56 -0400, Theodore Ts'o wrote: > > > > v2: Updated for MS_CGROUPWB -> SB_I_CGROUPWB. > > > > > > > > Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> > > > > Cc: "Theodore Ts'o" <tytso@xxxxxxx> > > > > Cc: Andreas Dilger <adilger.kernel@xxxxxxxxx> > > > > Cc: linux-ext4@xxxxxxxxxxxxxxx > > > > > > Thanks, applied. > > > > Hi, this patch introduces a regression - a major one, I'd say. > > > > Symptoms: copy a bunch of file, run sync, then run 'reboot', and > > after > > you boot up the copied files are corrupted. So basically the user > > -visible symptom is that 'sync' does not work. > > Just FYI, this is the issue I briefly reported last Fri: > > https://lkml.org/lkml/2015/9/18/640 Also note this performance regression reported by Dexuan Cui https://lkml.org/lkml/2015/9/23/333 I didn't notice these problems since I my userspace doesn't enable the writeback cgroup. (In fact I don't know how to do it using Debian Jessie.) Tejun, can you please take a look at this and give me a recommendation? I'm willing to wait a day or two while we try to fix the problem, but past that point I'd like to have a fix or revert this commit before Linus releases the next -rc release. - Ted -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
