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[Qemu-devel] [BUG] Crash in cirrus_do_copy() with cirrus_blt_srcpitch ==
From: |
Stuart Brady |
Subject: |
[Qemu-devel] [BUG] Crash in cirrus_do_copy() with cirrus_blt_srcpitch == 0 |
Date: |
Sat, 14 Mar 2009 14:01:40 +0000 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Hi,
Windows NT 4.0 SP1 crashes in cirrus_do_copy() when attempting to
apply display settings (i.e. depth/resolution) at the following point:
Program received signal SIGFPE, Arithmetic exception.
[Switching to Thread 0x7f6197c066e0 (LWP 31336)]
0x000000000045d1cf in cirrus_bitblt_start (s=0x2ac8240)
at /home/sdb/src/qemu/qemu-svn/hw/cirrus_vga.c:733
733 sx = (src % ABS(s->cirrus_blt_srcpitch)) / depth;
(gdb) print s->cirrus_blt_srcpitch
$1 = 0
(gdb) print s->cirrus_blt_dstpitch
$2 = 1
I'm not sure whether NT is just being silly, here. If it is, then I
suppose we would need to add a check for srcpitch != 0 and dstpitch != 0
to BLTUNSAFE()...
Any thoughts?
Cheers,
--
Stuart Brady
- [Qemu-devel] [BUG] Crash in cirrus_do_copy() with cirrus_blt_srcpitch == 0,
Stuart Brady <=