linux-kernel - Re: [PATCH RT] Revert "cpumask: Disable CONFIG_CPUMASK

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-prev] [day] [month] [year] [list]

Date:   Tue, 21 Jan 2020 22:38:42 -0600
From:   Scott Wood <swood@...hat.com>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH RT] Revert "cpumask: Disable CONFIG_CPUMASK_OFFSTACK for
 RT"

On Sun, 2020-01-19 at 11:34 +0100, Sebastian Andrzej Siewior wrote:
> On 2020-01-19 02:03:23 [-0600], Scott Wood wrote:
> > I get splats with this due to zalloc_cpumask_var() with preemption
> > disabled
> > (from the get_cpu() in x86 flush_tlb_mm_range()):
> 
> Is 
> 	
> http://lkml.kernel.org/r/20200117090137.1205765-1-bigeasy@linutronix.de
> 
> solving the issue?
> 
> Sebastian
> 

Yes, looks good with those patches.

-Scott