* Re: [PATCH] Re: [BUG] 2.4.22-rc3 broke x86-64 ia32 emulation?
@ 2003-08-24 16:11 Mikael Pettersson
0 siblings, 0 replies; 2+ messages in thread
From: Mikael Pettersson @ 2003-08-24 16:11 UTC (permalink / raw)
To: ak; +Cc: linux-kernel, marcelo
On 24 Aug 2003 15:13:48 +0200, Andi Kleen wrote:
>Mikael Pettersson <mikpe@csd.uu.se> 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
Yes that fixed it. Thanks!
/Mikael
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH] Re: [BUG] 2.4.22-rc3 broke x86-64 ia32 emulation?
[not found] <200308241211.h7OCBq7T014859@harpo.it.uu.se.suse.lists.linux.kernel>
@ 2003-08-24 13:13 ` Andi Kleen
0 siblings, 0 replies; 2+ messages in thread
From: Andi Kleen @ 2003-08-24 13:13 UTC (permalink / raw)
To: Mikael Pettersson; +Cc: marcelo, linux-kernel
Mikael Pettersson <mikpe@csd.uu.se> 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
^ permalink raw reply [flat|nested] 2+ messages in thread
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2003-08-24 16:11 [PATCH] Re: [BUG] 2.4.22-rc3 broke x86-64 ia32 emulation? Mikael Pettersson
[not found] <200308241211.h7OCBq7T014859@harpo.it.uu.se.suse.lists.linux.kernel>
2003-08-24 13:13 ` Andi Kleen
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