From: Christian Kujau <lists@nerdbynature.de>
To: "Jürgen Groß" <jgross@suse.com>
Cc: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org
Subject: Re: 5.7.0 / BUG: kernel NULL pointer dereference / setup_cpu_watcher
Date: Fri, 5 Jun 2020 11:02:45 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.22.395.2006051059200.13291@trent.utfs.org> (raw)
In-Reply-To: <7e2dec0c-8e27-6454-7793-d1246262283d@suse.com>
On Fri, 5 Jun 2020, Jürgen Groß wrote:
> Do you happen to start the guest with vcpus < maxvcpus?
Indeed, I was booting with vcpus=2, maxvcpus=4. Setting both to the same
value made the domU boot.
> If yes there is already a patch pending for 5.8:
> https://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git/commit/?h=for-linus-5.8&id=c54b071c192dfe8061336f650ceaf358e6386e0b
Applied that manually and now the system boots even with vcpus < maxvcpus.
So, if this still matters:
Tested-by: Christian Kujau <lists@nerdbynature.de>
Thank you for your response, and the fix!
Christian.
--
BOFH excuse #146:
Communications satellite used by the military for star wars.
next prev parent reply other threads:[~2020-06-05 18:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-05 8:36 5.7.0 / BUG: kernel NULL pointer dereference / setup_cpu_watcher Christian Kujau
2020-06-05 9:18 ` Jürgen Groß
2020-06-05 18:02 ` Christian Kujau [this message]
2020-06-05 18:10 ` Andrew Cooper
2020-06-05 22:21 ` Christian Kujau
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