Re: [tip:x86/asm] x86/entry/32: Switch INT80 to the new C syscall path
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- Subject: Re: [tip:x86/asm] x86/entry/32: Switch INT80 to the new C syscall path
- From: Borislav Petkov <bp@xxxxxxxxx>
- Date: Fri, 16 Oct 2015 19:34:46 +0200
- Cc: "linux-tip-commits@xxxxxxxxxxxxxxx" <linux-tip-commits@xxxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Andrew Lutomirski <luto@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Brian Gerst <brgerst@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Denys Vlasenko <dvlasenk@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
- In-reply-to: <CALCETrU+-5N5yjpEwYk=wARouXyX-o4W=-JK_7mOhp3A2cFvoQ@mail.gmail.com>
- User-agent: Mutt/1.5.23 (2014-03-12)
On Fri, Oct 16, 2015 at 08:59:23AM -0700, Andy Lutomirski wrote:
> Wow I am incompetent.
Bah, it can happen to anyone...
> set_system_trap_gate(IA32_SYSCALL_VECTOR, entry_INT80_32);
>
> How did I not catch that in testing? Can you change that to
> set_system_intr_gate and see if that helps?
Yeah, that was it. Well spotted, thanks!
Reported-and-tested-by: Borislav Petkov <bp@xxxxxxx>
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
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