Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1399182

Re: x86_64 Question: Are concurrent IPI requests safe?

From Thomas Gleixner <tglx@linutronix.de>
Newsgroups linux.kernel
Subject Re: x86_64 Question: Are concurrent IPI requests safe?
Date 2016-05-11 16:40 +0200
Message-ID <rxDsS-1yk-13@gated-at.bofh.it> (permalink)
References (1 earlier) <rwUP8-7Fi-5@gated-at.bofh.it> <rwWHh-16Q-37@gated-at.bofh.it> <rxCn9-F9-27@gated-at.bofh.it> <rxCwP-Kt-25@gated-at.bofh.it> <rxCZR-1jh-33@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Wed, 11 May 2016, Tetsuo Handa wrote:
> Peter Zijlstra wrote:
> > On Wed, May 11, 2016 at 10:19:16PM +0900, Tetsuo Handa wrote:
> > > [  180.434659] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013
> > 
> > can you reproduce on real hardware?
> > 
> Unfortunately, I don't have a real hardware to run development kernels.
> 
> My Linux environment is limited to 4 CPUs / 1024MB or 2048MB RAM running
> as a VMware guest on Windows. Can somebody try KVM environment with
> 4 CPUs / 1024MB or 2048MB RAM whith partition only plain /dev/sda1
> formatted as XFS?

Can you trigger a back trace on all cpus when the watchdog triggers?

Thanks,

	tglx

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[next-20160506 mm,smp] hang up at csd_lock_wait() from drain_all_pages() Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-05-06 13:00 +0200
  x86_64 Question: Are concurrent IPI requests safe? Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-05-09 17:00 +0200
    Re: x86_64 Question: Are concurrent IPI requests safe? Thomas Gleixner <tglx@linutronix.de> - 2016-05-09 19:00 +0200
      Re: x86_64 Question: Are concurrent IPI requests safe? Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-05-11 15:30 +0200
        Re: x86_64 Question: Are concurrent IPI requests safe? Peter Zijlstra <peterz@infradead.org> - 2016-05-11 15:40 +0200
          Re: x86_64 Question: Are concurrent IPI requests safe? Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-05-11 16:10 +0200
            Re: x86_64 Question: Are concurrent IPI requests safe? Thomas Gleixner <tglx@linutronix.de> - 2016-05-11 16:40 +0200
              Re: x86_64 Question: Are concurrent IPI requests safe? Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-05-11 17:20 +0200
                Re: x86_64 Question: Are concurrent IPI requests safe? Peter Zijlstra <peterz@infradead.org> - 2016-05-11 19:50 +0200
                Re: x86_64 Question: Are concurrent IPI requests safe? Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-05-12 00:00 +0200
        Re: x86_64 Question: Are concurrent IPI requests safe? Thomas Gleixner <tglx@linutronix.de> - 2016-05-11 16:20 +0200

csiph-web