linux-kernel - Re: [PATCH v2, simpler] ia64: fix ptrace(PTRACE

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Message-ID: <20180804223336.5f29778e@sf>
Date:   Sat, 4 Aug 2018 22:33:36 +0100
From:   Sergei Trofimovich <slyfox@...too.org>
To:     Tony Luck <tony.luck@...el.com>
Cc:     Fenghua Yu <fenghua.yu@...el.com>, linux-ia64@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2, simpler] ia64: fix ptrace(PTRACE_GETREGS) (unbreaks
 strace, gdb)

On Fri,  9 Mar 2018 23:15:55 +0000
Sergei Trofimovich <slyfox@...too.org> wrote:

I tried to explain in more detail breakage mechanics
of unwinder and gcc code generation quirks at:
    https://trofi.github.io/posts/210-ptrace-and-accidental-boot-fix-on-ia64.html
Hopefully it gives better intuition of code change
caused by both proposed patches.

I personally think v1 patch is slightly more robust.

-- 

  Sergei