Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to fix a race | KernelTrap

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to fix a race

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From: Luming Yu <luming.yu@...>

To: Roland McGrath <roland@...>

Cc: Petr Tesarik <ptesarik@...>, LKML <linux-kernel@...>, <linux-ia64@...>

Subject: Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to fix a race

Date: Sunday, May 25, 2008 - 9:30 pm

On Mon, May 26, 2008 at 8:15 AM, Roland McGrath <roland@redhat.com> wrote:
quoted text>> "deliver" here I mean get_signal_to_deliver()...
>
> This can never happen inside ptrace_stop.
> So your line of inquiry doesn't make sense to me.

if happens, it should be a bug, right?

quoted text>
> Please tell us the exact code path you think is happening in the error case
> you can reproduce.
>
I will try to customize kernel to capture call trace for a precise code path.

--Luming
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Messages in current thread:

[RFC PATCH] set TASK_TRACED before arch_ptrace code to fix a..., Luming Yu, (Wed May 21, 10:47 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Petr Tesarik, (Thu May 22, 4:47 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Thu May 22, 5:16 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Thu May 22, 7:18 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Thu May 22, 9:24 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Thu May 22, 4:34 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Thu May 22, 11:42 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Fri May 23, 12:19 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Fri May 23, 1:24 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Sun May 25, 8:15 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Sun May 25, 9:30 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Mon May 26, 11:31 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Tue May 27, 12:04 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Tue May 27, 1:49 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Tue May 27, 2:12 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Tue May 27, 4:48 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Fri May 30, 4:05 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Wed May 28, 5:14 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Tue Jun 3, 2:02 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Tue May 27, 2:34 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Petr Tesarik, (Tue May 27, 2:25 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Tue Jun 3, 2:04 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Petr Tesarik, (Tue Jun 3, 5:01 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Petr Tesarik, (Tue Jun 3, 10:32 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Tue Jun 3, 10:16 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Petr Tesarik, (Wed Jun 4, 5:16 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Wed Jun 4, 9:49 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Petr Tesarik, (Thu Jun 5, 7:16 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Thu Jun 5, 8:07 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Mon Sep 8, 11:06 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Wed Sep 10, 1:55 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Tue Sep 16, 4:50 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Wed Sep 17, 1:01 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Thu Sep 18, 1:44 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Tue Jun 3, 5:01 pm)

RE: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luck, Tony, (Tue Jun 3, 5:31 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Tue Jun 10, 4:23 am)

RE: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Tue Jun 3, 6:13 pm)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Petr Tesarik, (Thu May 22, 8:12 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Luming Yu, (Fri May 23, 8:33 am)

Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to f..., Roland McGrath, (Thu May 22, 4:39 pm)

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