From: Jan Kiszka <jan.kiszka@domain.hid>
To: rpm@xenomai.org
Cc: xenomai-core <xenomai@xenomai.org>
Subject: Re: [Xenomai-core] Pending patches
Date: Thu, 15 Jan 2009 12:24:34 +0100 [thread overview]
Message-ID: <496F1CF2.1030401@domain.hid> (raw)
In-Reply-To: <496F14B9.4010604@domain.hid>
Philippe Gerum wrote:
> Jan Kiszka wrote:
>> commit 728fc8970e2032b3280971788f1223f3ad82d80d
>> Author: Jan Kiszka <jan.kiszka@domain.hid>
>> Date: Thu Jan 15 11:10:24 2009 +0100
>>
>> xnpipe: Fix racy callback handlers
>>
>> Invocation of input, output and alloc handler must take place under
>> nklock to properly synchronize with xnpipe_disconnect. Change all
>> callers to comply with this policy.
>>
>
> That one is under investigation. I agree on the bug report (thanks btw), but I
> disagree on the fix. Basically, we can't run all hooks under nklock. For
> instance, the alloc_handler may issue kmalloc() calls when issued from the Linux
> write endpoint.
You mean it /could/? Because no in-tree user (ie. native) calls
rt-unsafe services from its alloc_handler.
Jan
--
Siemens AG, Corporate Technology, CT SE 26
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2009-01-15 11:24 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-15 10:19 [Xenomai-core] Pending patches Jan Kiszka
2009-01-15 10:30 ` Gilles Chanteperdrix
2009-01-15 11:00 ` Gilles Chanteperdrix
2009-01-15 11:31 ` Jan Kiszka
2009-01-15 13:02 ` Gilles Chanteperdrix
2009-01-15 14:12 ` Jan Kiszka
2009-01-15 11:28 ` Jan Kiszka
2009-01-15 13:09 ` Gilles Chanteperdrix
2009-01-15 14:17 ` Jan Kiszka
2009-01-15 21:46 ` Jan Kiszka
2009-01-15 10:49 ` Philippe Gerum
2009-01-15 11:24 ` Jan Kiszka [this message]
2009-01-15 12:09 ` Philippe Gerum
2009-01-15 13:55 ` Jan Kiszka
2009-01-15 14:16 ` Philippe Gerum
2009-01-19 23:18 ` Philippe Gerum
2009-01-19 23:35 ` Jan Kiszka
2009-01-20 8:49 ` Philippe Gerum
2009-01-20 9:06 ` Jan Kiszka
2009-01-20 9:18 ` Jan Kiszka
2009-01-20 9:22 ` Philippe Gerum
2009-01-27 13:10 ` Jan Kiszka
2009-01-27 13:26 ` Jan Kiszka
2009-01-27 13:28 ` Gilles Chanteperdrix
2009-01-27 13:29 ` Philippe Gerum
2009-01-27 13:40 ` Gilles Chanteperdrix
2009-01-27 13:40 ` Philippe Gerum
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