From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: Problems using psr.dd
Date: Thu, 20 Nov 2003 02:39:40 +0000 [thread overview]
Message-ID: <marc-linux-ia64-106929606629827@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106879020623297@msgid-missing>
>>>>> On Fri, 14 Nov 2003 17:09:15 +1100, Keith Owens <kaos@sgi.com> said:
Keith> I am unable to successfully use psr.dd on 2.4 and 2.6
Keith> kernels. The patches below plus the debug.c module
Keith> demonstrate the problem. do_trap29() sets regs->cr_ipsr.dd
Keith> and returns. The kernel drops through ia64_leave_kernel,
Keith> loads the modified ipsr and does rfi. However the same debug
Keith> fault occurs again, as if psr.dd were being ignored.
Keith> What am I missing?
Did you find the answer already?
I'm wondering if the problem would still occurr if the
debug-fault-triggering memory access was in a function with an empty
register frame.
--david
next prev parent reply other threads:[~2003-11-20 2:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-14 6:09 Problems using psr.dd Keith Owens
2003-11-20 2:39 ` David Mosberger [this message]
2003-11-20 4:32 ` Keith Owens
2003-11-20 7:18 ` Matt Chapman
2003-11-20 7:52 ` Keith Owens
2003-11-20 18:47 ` David Mosberger
2003-11-20 20:29 ` Seth, Rohit
2003-11-20 21:24 ` David Mosberger
2003-11-20 23:15 ` Keith Owens
2003-11-20 23:32 ` David Mosberger
2003-11-21 0:55 ` Seth, Rohit
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