linux-kernel - [PATCH v2 0/3] sched: Avoid that __wait_on_bit

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]

Message-ID: <908d9eda-4942-270c-7431-bf56f0a62681@sandisk.com>
Date:	Fri, 5 Aug 2016 16:08:22 -0700
From:	Bart Van Assche <bart.vanassche@...disk.com>
To:	Ingo Molnar <mingo@...nel.org>
CC:	Peter Zijlstra <peterz@...radead.org>,
	Oleg Nesterov <oleg@...hat.com>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Neil Brown <neilb@...e.de>,
	Michael Shaver <jmshaver@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 0/3] sched: Avoid that __wait_on_bit_lock() hangs

Hello Ingo,

This patch series addresses an issue that my SRP driver test software 
can trigger reproducibly, namely that __wait_on_bit_lock() hangs. Please 
review and apply these patches whenever this is convenient for you. The 
changes compared to the first version of this series are:
* Reworked the abort_exclusive_wait() changes.
* Added two patches, namely a patch that introduces a local variable and
   a patch (nr. 3) that eliminates again the spurious wakeups introduced
   by patch 1.

These patches have been tested on top of kernel v4.7 with kernel 
debugging enabled (detection of list corruption, lockdep, SLUB 
debugging, kmemleak, ...).

See also https://lkml.org/lkml/2016/8/3/289.

Thanks,

Bart.