Re: [pve-devel] PVE child process behavior question

[Denis Kanchev via pve-devel <pve-devel@lists.proxmox.com>]

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From: Denis Kanchev <denis.kanchev@storpool.com>
To: "Fabian Grünbichler" <f.gruenbichler@proxmox.com>
Cc: Proxmox VE development discussion <pve-devel@lists.proxmox.com>, Wolfgang Bumiller <w.bumiller@proxmox.com>
Subject: Re: [pve-devel] PVE child process behavior question
Date: Wed, 28 May 2025 09:13:44 +0300
Message-ID: <CAHXTzuk7tYRJV_j=88RWc3R3C7AkiEdFUXi88m5qwnDeYDEC+A@mail.gmail.com>

Here is the task log
2025-04-11 03:45:42 starting migration of VM 2282 to node 'telpr01pve05'
(10.10.17.5)
2025-04-11 03:45:42 starting VM 2282 on remote node 'telpr01pve05'
2025-04-11 03:45:45 [telpr01pve05] Warning: sch_htb: quantum of class 10001
is big. Consider r2q change.
2025-04-11 03:45:46 [telpr01pve05] Dump was interrupted and may be
inconsistent.
2025-04-11 03:45:46 [telpr01pve05] kvm: failed to find file
'/usr/share/qemu-server/bootsplash.jpg'
2025-04-11 03:45:46 start remote tunnel
2025-04-11 03:45:46 ssh tunnel ver 1
2025-04-11 03:45:46 starting online/live migration on
unix:/run/qemu-server/2282.migrate
2025-04-11 03:45:46 set migration capabilities
2025-04-11 03:45:46 migration downtime limit: 100 ms
2025-04-11 03:45:46 migration cachesize: 4.0 GiB
2025-04-11 03:45:46 set migration parameters
2025-04-11 03:45:46 start migrate command to
unix:/run/qemu-server/2282.migrate
2025-04-11 03:45:47 migration active, transferred 152.2 MiB of 24.0 GiB
VM-state, 162.1 MiB/s
...
2025-04-11 03:46:49 migration active, transferred 15.2 GiB of 24.0 GiB
VM-state, 2.0 GiB/s
2025-04-11 03:46:50 migration status error: failed
2025-04-11 03:46:50 ERROR: online migrate failure - aborting
2025-04-11 03:46:50 aborting phase 2 - cleanup resources
2025-04-11 03:46:50 migrate_cancel
2025-04-11 03:46:52 ERROR: migration finished with problems (duration
00:01:11)
TASK ERROR: migration problems

> that has weird implications with regards to threads, so I don't think that
> is a good idea..
What you mean by that? Are any threads involved?

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