[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <56D00D5D.8020709@suse.cz>
Date: Fri, 26 Feb 2016 09:31:25 +0100
From: Jiri Slaby <jslaby@...e.cz>
To: Jiri Kosina <jikos@...nel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Hurley <peter@...leysoftware.com>,
Greg KH <gregkh@...uxfoundation.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
stable <stable@...r.kernel.org>, lwn@....net,
Steven Rostedt <rostedt@...dmis.org>
Subject: Re: BUG: unable to handle kernel paging request from pty_write [was:
Linux 4.4.2]
On 02/25/2016, 11:00 PM, Jiri Kosina wrote:
>> If it was one of the calls _in_ try_to_wake_up() that called to insane
>> code, I would have expected to see try_to_wake_up on the stack.
>
> try_to_wake_up() is very likely to be inlined into wake_up_process(), and
> therefore in such cases will never be on the stack as a return address;
> it'll always be wake_up_process().
Actually it is not inlined, see core.s at:
http://labs.suse.cz/jslaby/bug-968218/
thanks,
--
js
suse labs
Powered by blists - more mailing lists