Re: [PATCH 1/1] jbd2: fix incorrect unlock on j_list_lock

From: Lukáš Czerner
Date: Thu Mar 19 2015 - 08:13:53 EST


On Thu, 19 Mar 2015, Taesoo Kim wrote:

> Date: Thu, 19 Mar 2015 08:02:43 -0400
> From: Taesoo Kim <taesoo@xxxxxxxxxx>
> To: LukÃÅ Czerner <lczerner@xxxxxxxxxx>
> Cc: Taesoo Kim <tsgatesv@xxxxxxxxx>, tytso@xxxxxxx,
> linux-ext4@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx,
> changwoo@xxxxxxxxxx, sanidhya@xxxxxxxxxx, blee@xxxxxxxxxx,
> csong84@xxxxxxxxxx
> Subject: Re: [PATCH 1/1] jbd2: fix incorrect unlock on j_list_lock
>
> On 03/19/15 at 10:48am, LukÃÅ Czerner wrote:
> > On Wed, 18 Mar 2015, Taesoo Kim wrote:
> >
> > > Date: Wed, 18 Mar 2015 13:39:31 -0400
> > > From: Taesoo Kim <taesoo@xxxxxxxxxx>
> > > To: LukÃÅ Czerner <lczerner@xxxxxxxxxx>
> > > Cc: Taesoo Kim <tsgatesv@xxxxxxxxx>, tytso@xxxxxxx,
> > > linux-ext4@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx,
> > > changwoo@xxxxxxxxxx, sanidhya@xxxxxxxxxx, blee@xxxxxxxxxx,
> > > csong84@xxxxxxxxxx
> > > Subject: Re: [PATCH 1/1] jbd2: fix incorrect unlock on j_list_lock
> > >
> > > > The patch looks good, thanks.
> > >
> > > Thank you.
> > >
> > > > Reviewed-by: Lukas Czerner <lczerner@xxxxxxxxxx>
> > > >
> > > > Btw, were you able to reproduce the problem, or have you seen the
> > > > problem in the wild ? Or did you just spot it in the code ?
> > >
> > > We are developing a static checker to spot inconsistent programming
> > > patterns; our first goal is to scan over existing filesystems and
> > > figure out how they are implemented differently (or similarly). We
> > > will report bugs in sequence as soon as our team confirm (just start
> > > sending patches to other fs).
> >
> > And this was found but it ?
>
> Our current prototype.
>
> > But anyway it sounds really interesting, do you have any more
> > information you can share about the project ? Project website,
> > description, or source code would be great :)
>
> We need 1-2 months to wrap up. I would say, right after the deadline,
> we plan to make the code/result publicly available :)

Great! Looking forward to it.

Thanks!
-Lukas