linux-kernel - Re: [patch] i386: fix recursive fault in page-fault handler

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Message-ID: <Pine.LNX.4.64.0607171107390.15611@evo.osdl.org>
Date:	Mon, 17 Jul 2006 11:08:26 -0700 (PDT)
From:	Linus Torvalds <torvalds@...l.org>
To:	Chuck Ebbert <76306.1226@...puserve.com>
cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Krzysztof Halasa <khc@...waw.pl>, Andi Kleen <ak@...e.de>,
	Andrew Morton <akpm@...l.org>
Subject: Re: [patch] i386: fix recursive fault in page-fault handler



On Mon, 17 Jul 2006, Chuck Ebbert wrote:
>
> Krzysztof Halasa reported recursive faults in do_page_fault()
> causing a stream of partial oops messages on the console. Fix
> by adding a fixup for that code.

This patch is really too ugly to live. Does it even work? If 'tsk' is 
broken, I'd expect the die() to oops anyway - it does

	if (notify_die(DIE_OOPS, str, regs, err,
                       current->thread.trap_no, SIGSEG...

anyway (where that "current->thread.trap_no" gets dereferenced).

		Linus
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