From: Gary Thomas <gthomas@redhat.com>
To: Alfredo Knecht <aknecht@cimsi.cim.ch>
Cc: ecos-discuss@sourceware.cygnus.com
Subject: RE: [ECOS] Threading on EDB7211
Date: Sun, 11 Jun 2000 04:38:00 -0000 [thread overview]
Message-ID: <XFMail.000611053836.gthomas@redhat.com> (raw)
In-Reply-To: <3.0.5.32.20000611045816.00aa55f0@mailhost>
On 11-Jun-00 Alfredo Knecht wrote:
> Dear All,
>
> Thread switching is not working.
> I am using an off-the-shelf configuration for ARM EDB7111-2, with the
> GDB_module stub on the board.
> Specifically, I tested with lcd_test.c, and kthread1.c.
> Only the first thread (in cyg_thread_create() calling order) is ever executed.
> A call to cyg_thread_delay() blocks, and cyg_thread_yield() does not cause
> rescheduling.
> Fidgeting with priorities does not help, either.
> Generally, single-thread code works.
> Must be that thread switching stays disabled in eCos, but since I am using
> a "standard" configuration, I would like to have a second opinion before
> embarking on a deep dive.
>
Thread switching should work on this and all platforms.
Have you tried any of the standard tests and/or examples? A good one to
try is the 'bin_sem2' test in the kernel. This is an adaptation of the
classic dining philosophers and definitely relies on thread switching to
work properly. On Linux, one would build/run this test like this:
# ecosconfig new edb7211
# ecosconfig tree
# make tests
# arm-elf-gdb install/tests/kernel/VERSION/tests/bin_sem2
... etc.
next prev parent reply other threads:[~2000-06-11 4:38 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-06-10 19:55 Alfredo Knecht
2000-06-11 4:38 ` Gary Thomas [this message]
2000-06-12 1:19 ` Alfredo Knecht
2000-06-12 6:10 ` Gary Thomas
2000-06-12 12:51 Alfredo Knecht
2000-06-16 6:39 Rene.Affourtit
2000-06-16 7:03 ` Gary Thomas
2000-06-16 8:29 Alfredo Knecht
[not found] ` <XFMail.000616095000.gthomas@redhat.com>
2000-06-16 12:29 ` Alfredo Knecht
2000-06-16 13:34 ` Gary Thomas
2000-06-19 0:04 Rene.Affourtit
2000-06-19 4:11 ` Gary Thomas
2000-06-19 4:42 Rene.Affourtit
2000-06-19 5:06 ` Gary Thomas
2000-06-19 11:55 ` Alfredo Knecht
2000-06-19 13:22 ` Gary Thomas
2000-06-19 5:24 Rene.Affourtit
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