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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 13:37:45 +0100	[thread overview]
Message-ID: <20230614123745.GE7636@redhat.com> (raw)
In-Reply-To: <20230614113536.GJ1639749@hirez.programming.kicks-ass.net>

On Wed, Jun 14, 2023 at 01:35:36PM +0200, Peter Zijlstra wrote:
> I've got that plain qemu thing running on:
> 
>   defconfig + kvm_guest.config + CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y

With this config I hit the bug locally after ~ 400 iterations.
However this is on an AMD host, and for some reason on Intel host the
bug is rarer (although it still happens).

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.
http://libguestfs.org/virt-v2v


  parent reply	other threads:[~2023-06-14 12:43 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 [this message]
2023-06-14 12:53           ` Peter Zijlstra
2023-06-14 13:03             ` Richard W.M. Jones
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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