On 04/23/2013 02:55 PM, Jan Kiszka wrote:
On 2013-04-23 14:40, Philippe Gerum wrote:
Well, we have --enable-posix-auto-mlockall for that. But you are right,
we get rid of all this and enable automatic mlockall for all skins. I do
not see any drawbacks.
From the dept of Xenomai archive: the original intent of controlling
when and how memory locking is done was to address this bug with very
old kernels:
http://lkml.indiana.edu/hypermail/linux/kernel/0310.0/0649.html
Back then, apps mmapping I/O space would then mlock(MCL_CURRENT),
mmap(I/O space), then mlock(MCL_FUTURE) to work around this bug manually.
Interesting - but luckily no longer relevant. :)
Agreed.
--
Philippe.
_______________________________________________
Xenomai mailing list
[email protected]
http://www.xenomai.org/mailman/listinfo/xenomai
