From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: "debian-powerpc@lists.debian.org"
<debian-powerpc@lists.debian.org>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: Linux kernel: powerpc: KVM guest can trigger host crash on Power8
Date: Sun, 9 Jan 2022 23:17:28 +0100 [thread overview]
Message-ID: <8aa4e710-df2d-8cb7-ba16-f6043c929a14@physik.fu-berlin.de> (raw)
In-Reply-To: <872c2364-a5db-0533-c8bd-91e03c067a2f@physik.fu-berlin.de>
Hi Michael!
On 1/7/22 12:20, John Paul Adrian Glaubitz wrote:
>> Can you separately test with (on the host):
>>
>> # echo 0 > /sys/module/kvm_hv/parameters/dynamic_mt_modes
>
> I'm trying to turn off "dynamic_mt_modes" first and see if that makes any difference.
>
> I will report back.
So far the machine is running stable now and the VM built gcc-9 without
crashing the host. I will continue to monitor the machine and report back
if it crashes, but it looks like this could be it.
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
next prev parent reply other threads:[~2022-01-09 22:18 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-25 11:18 Linux kernel: powerpc: KVM guest can trigger host crash on Power8 Michael Ellerman
2021-10-26 8:48 ` John Paul Adrian Glaubitz
2021-10-27 5:29 ` Nicholas Piggin
2021-10-27 5:30 ` Michael Ellerman
2021-10-27 10:03 ` John Paul Adrian Glaubitz
2021-10-27 11:06 ` Michael Ellerman
2021-10-27 11:09 ` John Paul Adrian Glaubitz
2021-10-28 6:39 ` Michael Ellerman
2021-10-28 11:20 ` John Paul Adrian Glaubitz
2021-10-28 14:05 ` John Paul Adrian Glaubitz
2021-10-28 14:15 ` John Paul Adrian Glaubitz
2021-11-01 17:36 ` Michal Suchánek
2021-10-29 0:41 ` Nicholas Piggin
2021-10-29 12:33 ` John Paul Adrian Glaubitz
2021-11-01 17:43 ` Michal Suchánek
2021-10-30 7:19 ` John Paul Adrian Glaubitz
2021-11-01 6:53 ` Michael Ellerman
2021-11-01 7:37 ` John Paul Adrian Glaubitz
2021-11-01 17:20 ` John Paul Adrian Glaubitz
2022-01-04 13:00 ` John Paul Adrian Glaubitz
2022-01-06 10:58 ` Michael Ellerman
2022-01-07 11:20 ` John Paul Adrian Glaubitz
2022-01-09 22:17 ` John Paul Adrian Glaubitz [this message]
2022-01-13 0:17 ` John Paul Adrian Glaubitz
2022-01-26 20:21 ` John Paul Adrian Glaubitz
2022-01-27 15:50 ` Mike
2021-10-28 13:52 ` John Paul Adrian Glaubitz
2021-10-28 14:00 ` John Paul Adrian Glaubitz
2021-10-28 3:58 ` [oss-security] " Salvatore Bonaccorso
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