[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PULL 2/7] tests/migration: Enable the migration test o
From: |
Thomas Huth |
Subject: |
Re: [Qemu-devel] [PULL 2/7] tests/migration: Enable the migration test on s390x, too |
Date: |
Fri, 19 Oct 2018 12:42:45 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
On 2018-10-18 16:53, Wei Huang wrote:
>
>
> On 10/18/2018 07:43 AM, Emilio G. Cota wrote:
>> On Thu, Oct 18, 2018 at 14:38:01 +0200, Thomas Huth wrote:
>>> On 2018-10-17 21:28, Emilio G. Cota wrote:
>>>> Can anyone reproduce this? Otherwise, let me know what other info
>>>> I could provide.
>>>
>>> I've finally been able to reproduce it - seems like it only happens here
>>> when the host is under heavy load.
>
> Given that it only happens under heavy load, could the failure be caused
> by migration thresholds defined in migrate_postcopy_prepare()? You can
> play with "max-bandwidth", "downtime-limit" and others to see if it helps.
David suggested on IRC yesterday that this problem might be the same as
with the ppc64 migration test: It does not work with TCG, only with KVM.
I've now done some tests, and indeed, I can not reproduce the problem
when running with KVM on a s390x host. But as soon as I disable the kvm
kernel module and run the test with TCG there, the problem occurs again.
So I think I'll send a patch to disable this test with TCG for now. Once
the problem with TCG has been solved, we can enable it again.
Thomas
- [Qemu-devel] [PULL 3/7] migration: Stop postcopy fault thread before notifying, (continued)
- [Qemu-devel] [PULL 3/7] migration: Stop postcopy fault thread before notifying, Dr. David Alan Gilbert (git), 2018/10/11
- [Qemu-devel] [PULL 4/7] vhost-user: Fix userfaultfd leak, Dr. David Alan Gilbert (git), 2018/10/11
- [Qemu-devel] [PULL 5/7] vhost-user: Don't ask for reply on postcopy mem table set, Dr. David Alan Gilbert (git), 2018/10/11
- [Qemu-devel] [PULL 6/7] qmp, hmp: make subsystem/system-vendor identities optional, Dr. David Alan Gilbert (git), 2018/10/11
- [Qemu-devel] [PULL 2/7] tests/migration: Enable the migration test on s390x, too, Dr. David Alan Gilbert (git), 2018/10/11
- Re: [Qemu-devel] [PULL 2/7] tests/migration: Enable the migration test on s390x, too, Emilio G. Cota, 2018/10/17
- Re: [Qemu-devel] [PULL 2/7] tests/migration: Enable the migration test on s390x, too, Thomas Huth, 2018/10/18
- Re: [Qemu-devel] [PULL 2/7] tests/migration: Enable the migration test on s390x, too, Thomas Huth, 2018/10/18
- Re: [Qemu-devel] [PULL 2/7] tests/migration: Enable the migration test on s390x, too, Emilio G. Cota, 2018/10/18
- Re: [Qemu-devel] [PULL 2/7] tests/migration: Enable the migration test on s390x, too, Wei Huang, 2018/10/18
- Re: [Qemu-devel] [PULL 2/7] tests/migration: Enable the migration test on s390x, too,
Thomas Huth <=
[Qemu-devel] [PULL 1/7] tests: Add migration test for aarch64, Dr. David Alan Gilbert (git), 2018/10/11
[Qemu-devel] [PULL 7/7] migration-test: Only generate a single target architecture, Dr. David Alan Gilbert (git), 2018/10/11
Re: [Qemu-devel] [PULL 0/7] migration queue, Peter Maydell, 2018/10/12