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Re: [Libunwind-devel] [PATCH] arm: Validate memory before access

From: Vyacheslav Barinov
Subject: Re: [Libunwind-devel] [PATCH] arm: Validate memory before access
Date: Tue, 05 May 2015 09:10:55 +0300
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)


  Actually I can't say which exact environment change caused the problem, it 
was detected after
  migration our distro (Tizen) from glibc 2.18 to glibc 2.20.

  But that could be just a coincidence and the problem showed itself due to 
some combination of
  other factors.

Best Regards,
Vyacheslav Barinov

Yvan Roux <address@hidden> writes:

> Hi,
> On 29 April 2015 at 09:45, Yvan Roux <address@hidden> wrote:
>> Hi,
>> On 29 April 2015 at 05:36, Arun Sharma <address@hidden> wrote:
>>> On Wed, Apr 15, 2015 at 4:34 AM,  <address@hidden> wrote:
>>>> From 20355c6dd143ea295256da17d6edd334ba754120 Mon Sep 17 00: 00:00 2001
>>>> From: Vyacheslav Barinov <address@hidden>
>>>> Date: Wed, 15 Apr 2015 14:08:06 +0300
>>>> Subject: [PATCH] arm: Validate memory before access
>>>> Prevent SIGSEGV due to accessing addresses now mapped to current process
>>> The patch looks good, but I don't have an ARM machine to test. Yvan,
>>> do you mind taking a look?
>> Sure, I'll try to do it quickly.
> Sorry for the delay.  Patch looks okay for me as well, and no
> regression observed on a ARM box, but do you have a way to reproduce
> the initial problem ?
> Thanks,
> Yvan

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