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Re: [Qemu-devel] Broken aarch64 by qcow2: skip writing zero buffers to e
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From: |
Max Reitz |
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Subject: |
Re: [Qemu-devel] Broken aarch64 by qcow2: skip writing zero buffers to empty COW areas [v2] |
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Date: |
Wed, 21 Aug 2019 19:51:19 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 |
On 21.08.19 16:14, Lukáš Doktor wrote:
> Hello guys,
>
> First attempt was rejected due to zip attachment, let's try it again with
> just Avocado-vt debug.log and serial console log files attached.
>
> I bisected a regression on aarch64 all the way to this commit: "qcow2: skip
> writing zero buffers to empty COW areas"
> c8bb23cbdbe32f5c326365e0a82e1b0e68cdcd8a. Would you please have a look at it?
I think I can see the issue on my x64 system (I don’t see the XFS
corruption, but the installation fails because of some segfaults).
I haven’t found a simpler way to reproduce the problem yet, though,
which is a pain... :-/
It looks like the problem disappears when I configure qemu with
“--disable-xfsctl”. Can you try that?
Max