From: Jan Kiszka <jan.kiszka@domain.hid>
To: rpm@xenomai.org
Cc: adeos-main <adeos-main@gna.org>
Subject: Re: [Adeos-main] [PATCH] x86: Proper root domain state management for ipipe_handle_exception
Date: Mon, 23 Feb 2009 18:50:08 +0100 [thread overview]
Message-ID: <49A2E1D0.1010607@domain.hid> (raw)
In-Reply-To: <49A2E00C.1090201@domain.hid>
Jan Kiszka wrote:
> ...
> BTW, I'm currently failing to find the code path that enables hardware
> IRQs before calling the Linux handler. There's no related change in this
> particular patch, so I guess I'm just blind ATM.
Found it: We have to call into do_page_fault with IRQs disabled in order
to get the right CR2. So the callees need to be patched to enable hard
IRQs again, we can't do it earlier.
Jan
--
Siemens AG, Corporate Technology, CT SE 2
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2009-02-23 17:50 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-20 14:33 [Adeos-main] [PATCH] x86: Proper root domain state management for ipipe_handle_exception Jan Kiszka
2009-02-23 12:04 ` [Xenomai-help] " Philippe Gerum
2009-02-23 12:37 ` Jan Kiszka
2009-02-23 12:40 ` Jan Kiszka
2009-02-23 12:55 ` Philippe Gerum
2009-02-23 13:36 ` [Adeos-main] " Jan Kiszka
2009-02-23 17:42 ` Jan Kiszka
2009-02-23 17:50 ` Jan Kiszka [this message]
2009-02-23 18:57 ` Philippe Gerum
2009-02-23 22:20 ` Jan Kiszka
2009-02-24 9:03 ` Philippe Gerum
2009-02-23 12:10 ` [Xenomai-help] " Philippe Gerum
2009-02-23 17:21 ` Jan Kiszka
2009-02-23 23:32 ` Steven Seeger
2009-02-23 23:35 ` Steven Seeger
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