From: Jan Kiszka <jan.kiszka@siemens.com>
To: Anders Blomdell <anders.blomdell@control.lth.se>
Cc: Xenomai <xenomai@xenomai.org>
Subject: Re: [Xenomai] kernel BUG at arch/x86/kernel/ipipe.c:589! on motherboard DX79SI
Date: Fri, 15 Feb 2013 16:34:44 +0100 [thread overview]
Message-ID: <511E5594.2010809@siemens.com> (raw)
In-Reply-To: <511E53A5.1030406@siemens.com>
On 2013-02-15 16:26, Jan Kiszka wrote:
> On 2013-02-15 16:15, Anders Blomdell wrote:
>> Hi,
>>
>> I have a DX79SI that dies with "kernel BUG at
>> arch/x86/kernel/ipipe.c:589!" when running Xenomai. This is not very
>> surprising since when running the system with an ordinary kernel thera
>> are a few 'do_IRQ: X.Y No irq handler for vector (irq -1)' each day.
>>
>> Question is if it would be possible to do something less fatal than
>> 'BUG_ON(irq < 0);' in the code below:
>
> This remains a bug that has to be understood.
Oh, now I really read the paragraph above: So your system generates
spurious interrupts? OK, for which vector? Are there reports on the web
related to this issue and hardware reasons? I wouldn't want to run RT
load on such a wacky box - provided it is a hardware issue.
The reason why we BUG here is that so far all cases were real I-pipe
bugs. Until we know this is required for otherwise fine hardware, I'm a
bit reluctant to add special code that handles this differently.
Jan
--
Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2013-02-15 15:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-15 15:15 [Xenomai] kernel BUG at arch/x86/kernel/ipipe.c:589! on motherboard DX79SI Anders Blomdell
2013-02-15 15:26 ` Jan Kiszka
2013-02-15 15:34 ` Jan Kiszka [this message]
2013-02-25 10:18 ` Anders Blomdell
2013-02-25 11:11 ` Jan Kiszka
2013-02-25 11:53 ` Anders Blomdell
2013-02-25 12:27 ` Gilles Chanteperdrix
2013-02-25 14:39 ` Anders Blomdell
2013-02-25 14:53 ` Philippe Gerum
2013-02-25 14:54 ` Jan Kiszka
2013-02-25 15:17 ` Anders Blomdell
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