From: Sander Eikelenboom <linux@eikelenboom.it>
To: Juergen Gross <jgross@suse.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Cc: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: Linux 5.13-rc6 regression to 5.12.x: kernel OOM and panic during kernel boot in low memory Xen VM's (256MB assigned memory).
Date: Thu, 17 Jun 2021 14:35:50 +0200 [thread overview]
Message-ID: <46c90fab-5928-d181-432f-228304a7e019@eikelenboom.it> (raw)
In-Reply-To: <6bcd447e-fd49-0519-a59e-478f84e9120f@suse.com>
On 17/06/2021 12:30, Juergen Gross wrote:
> On 17.06.21 11:26, Sander Eikelenboom wrote:
>> L.S.,
>>
>> I just tried to upgrade and test the linux kernel going from the 5.12
>> kernel series to 5.13-rc6 on my homeserver with Xen, but ran in some
>> trouble.
>>
>> Some VM's boot fine (with more than 256MB memory assigned), but the
>> smaller (memory wise) PVH ones crash during kernel boot due to OOM.
>> Booting VM's with 5.12(.9) kernel still works fine, also when dom0 is
>> running 5.13-rc6 (but it has more memory assigned, so that is not
>> unexpected).
>>
>> The 5.13-rc6'ish kernel is a pull of today, tried both with and without
>
>> last AKPM's patches, but that
>> makes no difference.
>>
>> Below are stacktraces from a few of the crashing VM's.
>>
>> Attached is the kernel .config
>>
>> Any pointers ?
>
> Did you compare memory usage with a bootable guest between kernel 5.12
> and 5.13-rc6?
>
> Any chance you could bisect?
>
>
> Juergen
>
Yeah a bisection is already underway, still 10 steps to go ...
--
Sander
next prev parent reply other threads:[~2021-06-17 12:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-17 9:26 Linux 5.13-rc6 regression to 5.12.x: kernel OOM and panic during kernel boot in low memory Xen VM's (256MB assigned memory) Sander Eikelenboom
2021-06-17 10:30 ` Juergen Gross
2021-06-17 12:35 ` Sander Eikelenboom [this message]
2021-06-17 15:01 ` Linus Torvalds
2021-06-17 15:37 ` Rasmus Villemoes
2021-06-17 15:37 ` Rasmus Villemoes
2021-06-17 18:02 ` Sander Eikelenboom
2021-06-17 19:39 ` Sander Eikelenboom
2021-06-18 1:06 ` Sander Eikelenboom
2021-06-21 16:54 ` Rasmus Villemoes
2021-06-21 21:36 ` Sander Eikelenboom
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