[Qemu-devel] qcow1 compression

[Ulrich Hecht]

Hi!

I have received a bug report from one of our users about compression in 
qcow(1). He converted disk images to qcow with compression, and the 
resulting images did not work. I looked into block-qcow.c and found 
several huge and, as it seems, long-standing bugs. For instance, 
QCOW_OFLAG_COMPRESSED is never set anywhere, causing compressed data to 
be returned verbatim on reading.

I'd like to get people's opinion on whether there is any point in fixing 
this stuff, considering that there is qcow2, and that it never worked to 
begin with. Perhaps a patch removing it would make more sense...

CU
Uli

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