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[Bug 524366] Re: Regression: CRC error an i386

To: registry@xxxxxxxxxxxxxxxxxxx
From: Christian Iversen <524366@xxxxxxxxxxxxxxxxxx>
Date: Thu, 12 Aug 2010 09:37:05 -0000
Reply-to: Bug 524366 <524366@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

I just made a number of tests regarding this bug.

I can confirm that the bug exists, and that it does not appear on amd64.

Furthermore, I've tried using a vanilla gzip 1.3.12 and 1.3.13, both
which fail with the same error.

However, both vanilla versions AND ubuntu version work if you set
CFLAGS=-DNOMEMCPY, which causes gzip to use byte-by-byte transfers
instead of calling memcpy()

In other words, this proves that it cannot have anything to do with the
rsync patches. There must be a rarely-triggered bug in memcpy(), which
only crops up on 32-bit.

It could be that gzip uses memcpy slightly incorrectly, but I am not
going to guess exactly why the bug occurs.

-- 
Regression: CRC error an i386
https://bugs.launchpad.net/bugs/524366
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