From: "Richard W.M. Jones" <rjones@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Aaron Thompson <dev@aaront.org>, linux-kernel@vger.kernel.org
Subject: Re: printk.time causes rare kernel boot hangs
Date: Wed, 14 Jun 2023 14:03:48 +0100 [thread overview]
Message-ID: <20230614130348.GF7636@redhat.com> (raw)
In-Reply-To: <20230614125320.GA1640563@hirez.programming.kicks-ass.net>
On Wed, Jun 14, 2023 at 02:53:20PM +0200, Peter Zijlstra wrote:
> Ooooh, what qemu version do you have? There were some really dodgy
> reports all around self modifying code, all reported on 7.2, that seems
> to have gone away with 8.
> Now, all of them were using TCG, and I think you're using KVM.
I'm using qemu-system-x86-8.0.0-4.fc39.x86_64 with KVM. The host
kernel is 6.4.0-0.rc5.41.fc39.x86_64.
> I've at least 36000 cycles and still nothing :-(, let me go try your
> .config.
I can definitely reproduce this with your config (but AMD host), so
that's odd. Let me try with Intel hardware and your config. You
really should see this with only a few thousands iterations.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://libguestfs.org
next prev parent reply other threads:[~2023-06-14 13:05 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-13 13:41 printk.time causes rare kernel boot hangs Richard W.M. Jones
2023-06-13 14:07 ` Linux regression tracking #adding (Thorsten Leemhuis)
2023-06-18 10:25 ` Linux regression tracking #update (Thorsten Leemhuis)
2023-06-14 9:21 ` Peter Zijlstra
2023-06-14 9:45 ` Richard W.M. Jones
2023-06-14 10:30 ` Richard W.M. Jones
2023-06-14 10:39 ` Richard W.M. Jones
2023-06-14 11:35 ` Peter Zijlstra
2023-06-14 11:43 ` Richard W.M. Jones
2023-06-14 12:37 ` Richard W.M. Jones
2023-06-14 12:53 ` Peter Zijlstra
2023-06-14 13:03 ` Richard W.M. Jones [this message]
2023-06-14 13:09 ` Peter Zijlstra
2023-06-14 14:53 ` Peter Zijlstra
2023-06-14 15:07 ` Richard W.M. Jones
2023-06-14 15:19 ` Peter Zijlstra
2023-06-14 15:22 ` Richard W.M. Jones
2023-06-14 15:31 ` Peter Zijlstra
2023-06-14 15:50 ` Richard W.M. Jones
2023-06-14 17:34 ` Richard W.M. Jones
2023-06-15 7:40 ` Alexandre Belloni
2023-06-15 7:48 ` Richard W.M. Jones
2023-06-14 11:20 ` Peter Zijlstra
2023-06-14 11:16 ` Peter Zijlstra
2023-06-14 11:22 ` Richard W.M. Jones
2023-06-14 11:26 ` Richard W.M. Jones
2023-06-15 11:04 ` YiFei Zhu
2023-06-15 11:29 ` Richard W.M. Jones
2023-06-15 11:31 ` Richard W.M. Jones
2023-06-15 12:20 ` Dr. David Alan Gilbert
2023-06-15 12:21 ` Richard W.M. Jones
2023-06-15 12:23 ` Richard W.M. Jones
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