lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Wed, 4 Apr 2018 23:14:20 -0400
From:   "Theodore Y. Ts'o" <>
To:     Waiman Long <>
Cc:     Ingo Molnar <>,
        Peter Zijlstra <>,
        Thomas Gleixner <>,,,
        Davidlohr Bueso <>,
        Oleg Nesterov <>
Subject: Re: [PATCH] locking/rwsem: Add up_write_non_owner() for

On Wed, Apr 04, 2018 at 10:37:26AM -0400, Waiman Long wrote:
> The commit 8c5db92a705d ("locking/rwsem: Add DEBUG_RWSEMS to look for
> lock/unlock mismatches") causes a warning in ext4 fstests due to the
> fact that the freeze and thaw ioctls, by design, are run in different
> processes.

While true, it's not just ext4 fstests --- it's any file system which
supports freeze/thaw, since it's happening in the vfs layer.  I have
just as easily replicated the problem using "kvm-xfstests -c xfs
generic/068".  Or "kvm-xfstests -c btrfs generic/068".


						- Ted

Powered by blists - more mailing lists