Hi,

while running make check on the latest rtt-1.4 branch/xenomai 2.3.x,
the taskcontext test produces some [CRITICAL] warnings, and then hangs
(only the "make check" hangs, the system does _not_ hang, and see explanation of why the test seems to hang below).

3/ 7 Testing event-test
Test command:
/home/kgad/SVN/rtt-1.4/build-xenomai-v2.3.x/tests/event-test
....................

OK (20)
-- Process completed
Passed
4/ 7 Testing taskcontext-test
Test command:
/home/kgad/SVN/rtt-1.4/build-xenomai-v2.3.x/tests/taskcontext-test
...1259.379 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
.1259.382 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
.1259.386 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
.1259.389 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
.1259.392 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
.1259.396 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
.1259.413 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
.1259.418 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
.1259.437 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
.1259.444 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
[further messages omitted]
1259.559 [CRITICAL][Logger] The SimulationThread thread seems to be blocked ( ret was -1 .)
OK (24)

After which the test seems to hang.

I have compiled xenomai with some debugging options, and this is what syslog shows for the above case:

Feb 13 09:11:07 newton kernel: I-pipe: Detected illicit call from domain 'Xenomai'
Feb 13 09:11:07 newton kernel: into a service reserved for domain 'Linux' and below.
Feb 13 09:11:07 newton kernel: e4735dd8 00000000 00000000 52544149 e4735dfc c010479a c02d5500 c04d9180
Feb 13 09:11:07 newton kernel: f1b81420 e4735e14 c0137b7d c02c7f9c c02c6b7f c02c5bb0 fefcf800 e4735e20
Feb 13 09:11:07 newton kernel: c01326f1 f15d60f0 e4735e44 fef95cd4 fefad548 e4735e44 c010ea0c 00000000
Feb 13 09:11:07 newton kernel: Call Trace:
Feb 13 09:11:07 newton kernel: [] show_trace_log_lvl+0x1f/0x35
Feb 13 09:11:07 newton kernel: [] show_stack_log_lvl+0xaa/0xcf
Feb 13 09:11:07 newton kernel: [] show_stack+0x2f/0x36
Feb 13 09:11:07 newton kernel: [] ipipe_check_context+0x7a/0x81
Feb 13 09:11:07 newton kernel: [] module_put+0x19/0x7d
Feb 13 09:11:07 newton kernel: [] xnshadow_unmap+0xbc/0x192 [xeno_nucleus]
Feb 13 09:11:07 newton kernel: [] __shadow_delete_hook+0x25/0x27 [xeno_native]
Feb 13 09:11:07 newton kernel: [] xnpod_schedule+0x206/0xcda [xeno_nucleus]
Feb 13 09:11:07 newton kernel: [] xnintr_irq_handler+0x134/0x172 [xeno_nucleus]
Feb 13 09:11:07 newton kernel: [] xnintr_clock_handler+0x17/0x19 [xeno_nucleus]
Feb 13 09:11:07 newton kernel: [] __ipipe_dispatch_wired+0x9b/0xcd
Feb 13 09:11:07 newton kernel: [] __ipipe_handle_irq+0x69/0x168
Feb 13 09:11:07 newton kernel: [] ipipe_ipi3+0x33/0x58
Feb 13 09:11:07 newton kernel: [] __ipipe_dispatch_event+0xbe/0x1fd
Feb 13 09:11:07 newton kernel: =======================
Feb 13 09:11:07 newton kernel: I-pipe tracer log (100 points):
Feb 13 09:11:07 newton kernel: | # *func 0 ipipe_trace_panic_freeze+0x9 (ipipe_check_context+0x3f)
Feb 13 09:11:07 newton kernel: | # *func 0 ipipe_check_context+0xc (module_put+0x19)
[rest of tracer log omitted]
Feb 13 09:11:07 newton kernel: Xenomai: watchdog triggered -- killing runaway thread 'SimulationThread'

The first messages and the last one seems to be particularly relevant :-)

Running the xenomai tests (latency and xeno-test) under heavy disk and
ping flood loads works out fine.

I'm running the recent versions of the xenomai 2.3.x branch and the
orocos 1.4.x branch:
[kgad@newton ~/SVN/rtt-1.4]$
svn info
Path: .
URL: https://svn.mech.kuleuven.be/repos/orocos/branches/rtt/rtt-1.4
Repository Root: https://svn.mech.kuleuven.be/repos/orocos
Repository UUID: ce417995-dfc9-0310-95a0-acdaff106893
Revision: 28949
Node Kind: directory
Schedule: normal
Last Changed Author: psoetens
Last Changed Rev: 28756
Last Changed Date: 2007-11-22 15:03:07 +0100 (Thu, 22 Nov 2007)

[kgad@newton ~/SVN/rtt-1.4]$
cd ../xenomai-v2.3.x/
[kgad@newton ~/SVN/xenomai-v2.3.x]$
svn info
Path: .
URL: http://svn.gna.org/svn/xenomai/branches/v2.3.x
Repository Root: http://svn.gna.org/svn/xenomai
Repository UUID: c6d672ea-8702-0410-b560-f74c916a59fe
Revision: 3494
Node Kind: directory
Schedule: normal
Last Changed Author: rpm
Last Changed Rev: 3430
Last Changed Date: 2008-01-17 17:14:39 +0100 (Thu, 17 Jan 2008)

[kgad@newton ~/SVN/xenomai-v2.3.x]$
uname -a
Linux newton 2.6.20.21-ipipe-1.12-02 #1 PREEMPT Tue Feb 12 11:40:37
CET 2008 i686 GNU/Linux

>From looking at websvn, could this be , which also applies for xenomai 2.3.x and is not yet merged into the 1.4 branch?

Klaas