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Re: [Qemu-block] [PATCH] m25p80: fix test on blk_pread() return value

From: Eric Blake
Subject: Re: [Qemu-block] [PATCH] m25p80: fix test on blk_pread() return value
Date: Mon, 13 Jun 2016 10:47:51 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0

On 06/13/2016 10:25 AM, Cédric Le Goater wrote:

> It seems that commit 243e6f69c129 ("m25p80: Switch to byte-based block 
> access") 
> is bringing another issue :
> qemu-system-arm: 
> /home/legoater/work/qemu/qemu-ast2400-mainline.git/block/io.c:1252: 
> bdrv_aligned_pwritev: Assertion `!qiov || bytes == qiov->size' failed.
> Aborted (core dumped)

Can you provide a more complete stack dump, and/or a recipe on how to
repeat the assertion?

> The flash page size is 256. 
> How should we handle this ? 

Sounds like a bug to be fixed.

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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