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Re: [Qemu-devel] [PATCH 3/3] qemu-iotests: Some more write_zeroes tests

From: Kevin Wolf
Subject: Re: [Qemu-devel] [PATCH 3/3] qemu-iotests: Some more write_zeroes tests
Date: Wed, 18 May 2016 12:09:37 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

Am 17.05.2016 um 22:35 hat Eric Blake geschrieben:
> No test of crossing a cluster boundary at this point?  I would probably do:
> $QEMU_IO -c "write -z 27k 2k" "$TEST_IMG" | _filter_qemu_io
> then check that the map shows an allocation starting at 24k for 8192 bytes

> What you have looks fine, but again, I'd consider also testing a
> sub-cluster size 'write -z' that spans a cluster boundary, including the
> case where it is overwriting data from the backing file.

Okay, I'll put some more time into this test case. What we're testing
here is a source for corruption bugs, so it's probably worth doing it


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