From: Ruediger Oertel <ro@suse.de>
To: "Michael Ellerman" <mpe@ellerman.id.au>,
"Nicholas Piggin" <npiggin@gmail.com>,
linuxppc-dev@lists.ozlabs.org,
"Michal Suchánek" <msuchanek@suse.de>
Subject: Re: KVM on POWER8 host lock up since 10d91611f426 ("powerpc/64s: Reimplement book3s idle code in C")
Date: Mon, 31 Aug 2020 15:13:22 +0200 [thread overview]
Message-ID: <a6469ba3-36ac-9e59-df4c-e8ee657647b4@suse.de> (raw)
In-Reply-To: <87v9gz0y5y.fsf@mpe.ellerman.id.au>
[-- Attachment #1.1: Type: text/plain, Size: 1312 bytes --]
Am 31.08.20 um 14:58 schrieb Michael Ellerman:
[...]
>> The machines are running in OPAL/PowerNV mode, with "ppc64_cpu --smt=off".
>> The number of VMs varies across the machines:
>> obs-power8-01: 18 instances, "-smp 16,threads=8"
>> obs-power8-02: 20 instances, "-smp 8,threads=8"
>> obs-power8-03: 30 instances, "-smp 8,threads=8"
>> obs-power8-04: 20 instances, "-smp 8,threads=8"
>
> Can you send us the output of:
>
> # grep . /sys/module/kvm_hv/parameters/*
of course, the current values are:
/sys/module/kvm_hv/parameters/dynamic_mt_modes:6
/sys/module/kvm_hv/parameters/h_ipi_redirect:1
/sys/module/kvm_hv/parameters/indep_threads_mode:Y
/sys/module/kvm_hv/parameters/kvm_irq_bypass:1
/sys/module/kvm_hv/parameters/nested:Y
/sys/module/kvm_hv/parameters/one_vm_per_core:N
/sys/module/kvm_hv/parameters/target_smt_mode:0
(actually identical on all 5 above)
--
with kind regards (mit freundlichem Grinsen),
Ruediger Oertel (ro@suse.com,ro@suse.de,bugfinder@t-online.de)
--------Do-Not-Accept-Binary-Blobs.----Ever.----From-Anyone.------------
Key fingerprint = 17DC 6553 86A7 384B 53C5 CA5C 3CE4 F2E7 23F2 B417
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg,
Germany, (HRB 36809, AG Nürnberg), Geschäftsführer: Felix Imendörffer
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 195 bytes --]
next prev parent reply other threads:[~2020-08-31 13:16 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-30 20:11 KVM on POWER8 host lock up since 10d91611f426 ("powerpc/64s: Reimplement book3s idle code in C") Michal Suchánek
2020-08-31 1:14 ` Nicholas Piggin
2020-08-31 8:48 ` Ruediger Oertel
2020-08-31 12:58 ` Michael Ellerman
2020-08-31 13:13 ` Ruediger Oertel [this message]
2020-08-31 9:03 ` Ruediger Oertel
2020-08-31 9:07 ` Michal Suchánek
2020-08-31 9:15 ` Michal Suchánek
2020-08-31 10:50 ` Michael Ellerman
2020-09-07 13:13 ` Nicholas Piggin
2020-09-07 13:25 ` Michal Suchánek
2020-10-16 20:14 ` Michal Suchánek
2020-10-19 1:00 ` Nicholas Piggin
2020-10-19 4:50 ` Nicholas Piggin
2020-10-21 17:00 ` Michal Suchánek
2021-01-14 12:40 ` Michal Suchánek
2021-01-14 13:08 ` Nicholas Piggin
2021-01-14 13:08 ` Nicholas Piggin
2021-11-02 15:48 ` Michal Suchánek
2021-11-02 15:48 ` Michal Suchánek
2021-11-05 1:47 ` Nicholas Piggin
2021-11-05 1:47 ` Nicholas Piggin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=a6469ba3-36ac-9e59-df4c-e8ee657647b4@suse.de \
--to=ro@suse.de \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=msuchanek@suse.de \
--cc=npiggin@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.