linux-kernel - [RFC][PATCH 0/4] FUTEX_UNLOCK

lists.openwall.net		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-next>] [day] [month] [year] [list]

Date:   Mon, 03 Oct 2016 11:12:34 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     mingo@...nel.org, tglx@...utronix.de, juri.lelli@....com,
        rostedt@...dmis.org, xlpang@...hat.com, bigeasy@...utronix.de
Cc:     linux-kernel@...r.kernel.org, mathieu.desnoyers@...icios.com,
        jdesfossez@...icios.com, bristot@...hat.com, peterz@...radead.org
Subject: [RFC][PATCH 0/4] FUTEX_UNLOCK_PI wobbles

Hi,

During my last PI failing patch set it became obvious there's a number of
related fail in FUTEX_UNLOCK_PI that needed sorting before we can move on
with that stuff.

These here patches are the result of staring at that code for a wee bit.

Please have a very _very_ careful look at the last patch, it appears to not
explode when running:

  - perf bench futex lock-pi
  - selftests/futex

but given the immense amount of tricky involved with both PI and futex there is
bound to be something I've overlooked.

Do people have more/better futex-pi test cases?