Hi everyone, (CCs just based on tags in the commit in question)
I have two bug reports which claim problems of qcow2 on XFS on ppc64le machines since qemu 4.1.0. One of those is about bad performance (sorry, is isn’t public :-/), the other about data corruption (https://bugzilla.redhat.com/show_bug.cgi?id=1751934). It looks like in both cases reverting c8bb23cbdbe3 solves the problem (which optimized COW of unallocated areas). I think I’ve looked at every angle but can‘t find what could be wrong with it. Do any of you have any idea? :-/ Thanks, Max
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