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From: Maksym Veremeyenko <verem@domain.hid>
To: Jan Kiszka <jan.kiszka@domain.hid>
Cc: Xenomai-help@domain.hid
Subject: Re: [Xenomai-help] Strange deadlock.
Date: Sun, 11 Feb 2007 20:28:31 +0200	[thread overview]
Message-ID: <45CF604F.4030706@domain.hid> (raw)
In-Reply-To: <45CD9FD1.9040509@domain.hid>

Jan Kiszka пишет:

> You are holding the mutex across the serial transaction, i.e. a
> secondary mode switch, right? If you haven't set
> CONFIG_XENO_OPT_RPIDISABLE, you might be are affected by the bug in the
> priority coupling between Xenomai and the Linux kernel. Already tried
> latest v2.3.x SVN?
i tried with r2170 and rewrited code for RT serial - situation the same.

Solution for me is to change tasks priority - set lower priority to task 
that perform read/write serial driver operations under lock.

Perhaps i should rewrite code to exclude I/O operations under locked 
mutex at all.


-- 
________________________________________
Maksym Veremeyenko


  reply	other threads:[~2007-02-11 18:28 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-09 19:35 [Xenomai-help] Strange deadlock Maksym Veremeyenko
2007-02-09 20:54 ` Philippe Gerum
2007-02-09 21:39   ` Maksym Veremeyenko
2007-02-09 21:14 ` Dmitry Adamushko
2007-02-09 22:10   ` Maksym Veremeyenko
2007-02-09 23:53     ` Dmitry Adamushko
2007-02-10  4:07 ` Maksym Veremeyenko
2007-02-10 10:34   ` Jan Kiszka
2007-02-11 18:28     ` Maksym Veremeyenko [this message]
2007-02-11 19:05       ` Philippe Gerum

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