From: David Mosberger <davidm@hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] TODO list
Date: Fri, 09 Feb 2001 20:04:42 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590693005131@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590693005124@msgid-missing>
>>>>> On Fri, 9 Feb 2001 12:01:45 -0800, Don Dugger <n0ano@valinux.com> said:
Don> It also isn't as easy to do as you might think. We were
Don> looking into this at one time and you have to be really
Don> carefull about stack management because you can wind up running
Don> in kernel mode with a user stack pointer. This would cause
Don> serious problems when an interrupt comes in.
While I agree with the sentiment, I'd phrase it a little differently:
it's not difficult to fix the assumption of "psr.cpl=0 => we're on
the kernel stack". The difficulty is in proving that you fixed all
the code that made that assumption...
--david
next prev parent reply other threads:[~2001-02-09 20:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-09 17:58 [Linux-ia64] TODO list Don Dugger
2001-02-09 19:14 ` Jun Nakajima
2001-02-09 19:42 ` David Mosberger
2001-02-09 20:01 ` Don Dugger
2001-02-09 20:04 ` David Mosberger [this message]
2001-02-16 19:29 ` Dragan Stancevic
2001-02-16 21:37 ` Don Dugger
2001-02-16 23:30 ` Michael Madore
2001-02-17 2:14 ` Dragan Stancevic
2001-02-17 2:54 ` Don Dugger
2001-02-17 19:44 ` Dragan Stancevic
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