[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling

[Anthony Liguori]

This patch should address the problem.  I've submitted it to qemu-devel.

** Patch added: "0001-Fix-console_write_ch-on-64-bit-big-endian-hosts.patch"
   
http://launchpadlibrarian.net/49569832/0001-Fix-console_write_ch-on-64-bit-big-endian-hosts.patch

** Changed in: qemu
       Status: New => In Progress

-- 
x86_64 host curses interface: spacing/garbling
https://bugs.launchpad.net/bugs/568614
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Status in QEMU: In Progress

Bug description:
Environment:
Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3

Steps to reproduce:
1. Have a host system running 64-bit Linux.
2. Start a qemu VM with the -curses flag.

Expected results:
Text displayed looks as it would on a real text-mode display, and VM is 
therefore usable.

Actual results:
Text displayed contains an extra space between characters, causing text to flow 
off the right and bottom sides of the screen. This makes the curses interface 
unintelligible.

The attached patch fixes this problem on 0.12.3 on my installation without 
changing behavior on a 32-bit machine.  I don't know enough of the semantics of 
console_ch_t to know if this is the "correct" fix or if there should be, say, 
an extra cast somewhere instead.