On Wednesday 30 June 2010 01:54:11 Sam Fourman Jr. wrote:
> Last Tuesday blizzard release World of Warcraft 3.3.5, and with this
> patch World of warcraft stopped working in FreeBSD 8.1 amd64, it
> crashes right after login.
>
> I have been playing World of Warcraft on FreeBSD amd64 since December
> of 2009 using the beta Nvidia 64bit drivers and this wine how-to
>
> http://wiki.freebsd.org/Wine#head-6963d527c173e57b1567e881305b544d33435b6d
>
> I can verify that on PCBSD 8.1 RC1 32bit World of warcraft works post
> 3.3.5 so far as I can tell it is only broken on amd64.
Could you give the attached patch a try?
cd /usr/src
patch -p1 < /path/to/patch-amd64-dr7
make buildkernel installkernel
diff --git a/sys/amd64/amd64/cpu_switch.S b/sys/amd64/amd64/cpu_switch.S
index cfb4204..6b5c663 100644
--- a/sys/amd64/amd64/cpu_switch.S
+++ b/sys/amd64/amd64/cpu_switch.S
@@ -243,13 +243,13 @@ store_dr:
movq %dr2,%r13
movq %dr3,%r12
movq %dr6,%r11
- andq $0x0000fc00, %rax /* disable all watchpoints */
movq %r15,PCB_DR0(%r8)
movq %r14,PCB_DR1(%r8)
movq %r13,PCB_DR2(%r8)
movq %r12,PCB_DR3(%r8)
movq %r11,PCB_DR6(%r8)
movq %rax,PCB_DR7(%r8)
+ andq $0x0000fc00, %rax /* disable all watchpoints */
movq %rax,%dr7
jmp done_store_dr
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