From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Jan Kiszka <jan.kiszka@domain.hid>
Cc: xenomai-help <xenomai@xenomai.org>, adeos-main <adeos-main@gna.org>
Subject: Re: [Xenomai-help] __ipipe_syscall_root logic
Date: Wed, 18 Feb 2009 13:52:08 +0000 [thread overview]
Message-ID: <499C1288.9040607@domain.hid> (raw)
In-Reply-To: <499C0E33.3070606@domain.hid>
Jan Kiszka wrote:
> Jan Kiszka wrote:
>> ...
>> However, let's assumed we entered __ipipe_syscall_root with root domain
>> stalled. If we then return from __ipipe_dispatch_event with 0 (=>
>> forward this syscall to Linux), we would not call __fixup_if again so
>> that the stalled state is kept. Is this a valid scenario for the given
>> task, or would this be broken already? At least it looks like the path
>> taken here
>
> Could someone explain __ipipe_syscall_root to me? The comment before the
> second __fixup_if() does not help me understanding why we only have to
> call it when we do not forward the syscall to Linux. In other words,
> this version would make more sense to me (32-bit variant, but 64-bit
> looks as fishy as its little brother):
My understanding is that we should call fixup_if again if we changed
domain while handling the syscall.
--
Gilles.
next prev parent reply other threads:[~2009-02-18 13:52 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-17 22:14 [Xenomai-help] BUG fs/buffer.c with Linux 2.6.26,27 Roman Pisl
2009-02-17 22:38 ` Philippe Gerum
2009-02-17 22:50 ` Jan Kiszka
2009-02-18 0:07 ` Gilles Chanteperdrix
2009-02-18 0:26 ` Gilles Chanteperdrix
2009-02-18 7:58 ` Jan Kiszka
2009-02-18 10:28 ` Gilles Chanteperdrix
2009-02-18 12:06 ` Jan Kiszka
2009-02-18 13:33 ` [Xenomai-help] __ipipe_syscall_root logic (was: BUG fs/buffer.c with Linux 2.6.26, 27) Jan Kiszka
2009-02-18 13:52 ` Gilles Chanteperdrix [this message]
2009-02-18 13:56 ` [Xenomai-help] __ipipe_syscall_root logic Jan Kiszka
2009-02-19 15:49 ` [Xenomai-help] [Adeos-main] " Philippe Gerum
2009-02-19 16:14 ` Jan Kiszka
2009-02-19 16:22 ` Philippe Gerum
2009-02-18 19:15 ` [Xenomai-help] BUG fs/buffer.c with Linux 2.6.26,27 Philippe Gerum
2009-02-19 17:38 ` Roman Pisl
2009-02-19 18:08 ` Jan Kiszka
2009-02-19 18:23 ` Steven Seeger
2009-02-19 18:32 ` Philippe Gerum
2009-02-20 11:37 ` Philippe Gerum
2009-02-20 12:05 ` Jan Kiszka
2009-02-20 12:10 ` Roman Pisl
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