linux-kernel - Re: [PATCH v4 18/29] nios2: Signal handling support

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Message-ID: <CAFiDJ5_JSe+9iu+APwVHkcyoyyNwQWhWDeQQjgUxyhDUhQxd7A@mail.gmail.com>
Date:	Thu, 9 Oct 2014 16:33:46 +0800
From:	Ley Foon Tan <lftan@...era.com>
To:	Richard Weinberger <richard.weinberger@...il.com>
Cc:	Linux-Arch <linux-arch@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Chung-Lin Tang <cltang@...esourcery.com>
Subject: Re: [PATCH v4 18/29] nios2: Signal handling support

On Wed, Oct 8, 2014 at 7:29 PM, Richard Weinberger
<richard.weinberger@...il.com> wrote:
> On Wed, Oct 8, 2014 at 11:29 AM, Ley Foon Tan <lftan@...era.com> wrote:
>> This patch adds support for signal handling.
>>
>> Signed-off-by: Ley Foon Tan <lftan@...era.com>
>
> Maybe I'm misreading your code but where do you check for multiple
> pending signals?
> It looks like you're handling only exact one signal before retuning to
> userspace.
> This is a serious issue, if you post a SIGSEGV i.e. in
> do_rt_sigreturn() you need to handle it later
> instead of directly returning to userspace.
Yes, Al also pointing out this. Will update this.

Regards
Ley Foon
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