[PATCH] Re: [BUG] 2.4.22-rc3 broke x86-64 ia32 emulation?

[Andi Kleen]

Mikael Pettersson <mikpe@xxxxxxxxx> writes:

> 2.4.22-rc3 appears to have broken x86-64's ia32-emulation.
> Now, whenever I run a 32-bit binary I get general protection
> and a core dump:

Ah, I know what the problem is. It's a side effect of the 
interrupt gate fix. This patch should fix it. 

Marcelo, can you please apply it? It fixes the 32bit emulation
on x86-64.

------------------

Fix 32bit system call gate.

--- linux/arch/x86_64/kernel/traps.c-o	2003-06-16 13:03:58.000000000 +0200
+++ linux/arch/x86_64/kernel/traps.c	2003-08-20 10:00:11.000000000 +0200
@@ -837,7 +837,7 @@
 	set_intr_gate(19,&simd_coprocessor_error);
 
 #ifdef CONFIG_IA32_EMULATION
-	set_intr_gate(IA32_SYSCALL_VECTOR, ia32_syscall);
+	set_system_gate(IA32_SYSCALL_VECTOR, ia32_syscall);
 #endif
 
 	/*


-Andi
-
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