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.
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