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: <20200313024007.GA27492@paulmck-ThinkPad-P72>
Date:   Thu, 12 Mar 2020 19:40:07 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org
Subject: [PATCH RFC tip/core/rcu 0/2] Fix RCU idle-exit problem and comment

Hello!

This series fixes a brown-paper-bag NMI self-deadlock bug located by
Thomas Gleixner and adds comments:

1.	Don't acquire lock in NMI handler in rcu_nmi_enter_common().

2.	Add comments marking transitions between RCU watching and not.

These pass light rcutorture testing, and seem like v5.8 material.

							Thanx, Paul

------------------------------------------------------------------------

 tree.c |   31 ++++++++++++++++++++++++++-----
 1 file changed, 26 insertions(+), 5 deletions(-)

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ