linux-kernel - Re: Can not get output of command line on SH

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Message-ID: <20120903042442.GE20229@linux-sh.org>
Date:	Mon, 3 Sep 2012 13:24:43 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
Cc:	Al Viro <viro@...iv.linux.org.uk>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Can not get output of command line on SH

On Mon, Sep 03, 2012 at 11:56:59AM +0900, Nobuhiro Iwamatsu wrote:
> On Fri, Aug 31, 2012 at 10:10 PM, Al Viro <viro@...iv.linux.org.uk> wrote:
> > Smells like broken TIF_NOTIFY_RESUME hookup on sh...  Arrrgh.  Looks like
> > while it is in the relevant masks *and* checked in do_notify_resume() both
> > on 32bit and 64bit variants since commit ab99c733ae73cce31f2a2434f7099564e5a73d95
> > Author: Paul Mundt <lethal@...ux-sh.org>
> > Date:   Wed Jul 30 19:55:30 2008 +0900
> >
> >     sh: Make syscall tracer use tracehook notifiers, add TIF_NOTIFY_RESUME.
> >
> > they are actually *not* reached without simulataneous SIGPENDING, since the
> > actual glue in the callers had not been updated back then and still checks
> > for _TIF_SIGPENDING alone when deciding whether to hit do_notify_resume()
> > or not.  Looks like the following ought to fix that:
> 
> Thanks for your reply and explanation.
> I confirmed that revise this problem with your patch.
> 
> >
> > Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
> Tested-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
> 
I'll queue it up, thanks!
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