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[Bug 1863710] Re: qemu 4.2 does not process discard(trim) commands
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From: |
Thomas Huth |
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Subject: |
[Bug 1863710] Re: qemu 4.2 does not process discard(trim) commands |
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Date: |
Thu, 06 May 2021 05:47:35 -0000 |
I mean: Please provide the QEMU command line parameters ... is this also
reproducible without libvirt? ... otherwise it might also be a problem
in libvirt instead...
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https://bugs.launchpad.net/bugs/1863710
Title:
qemu 4.2 does not process discard(trim) commands
Status in QEMU:
Incomplete
Bug description:
I'm using Arch Linux with qemu 4.2 and blktrace to monitor discard
commands as they are sent to the hardware. Blktrace shows nothing as
the VM is trimming the SSDs.
I downgraded to qemu 4.1.1 and blktrace shows lots of discard commands
as the VM is trimming.
Kernel version is 5.5.4.
Attached is the libvirt xml.
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