From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Steven Seeger <sseeger@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] fpu issue
Date: Wed, 21 Jan 2009 22:13:38 +0100 [thread overview]
Message-ID: <49779002.5080704@domain.hid> (raw)
In-Reply-To: <51CAD0CE1504444DBE77CBBE51A0135D53408C@slcmail.slc.mew.int>
Steven Seeger wrote:
> I spoke too soon. I managed to make it fail by removing the break in
> func() in my test, so that it does its comparison over and over again.
>
> The failure case starts off like the normal case where xnarch_save_fpu
> always exists early due to wrap_test_fpu_used always returning false.
> However, when it fails, as I pointed out earlier it seems that the
> cr0_ts is not set so stts() is not called in restore. I never see this
> case when things work properly. When it fails, I see two restores in a
> row where the task switch bit is not set in the FPU.
>
> Where would I want to look into this?
Please send me traces, so that I can understand what goes wrong.
--
Gilles.
next prev parent reply other threads:[~2009-01-21 21:13 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-20 4:25 [Xenomai-help] fpu issue Steven Seeger
2009-01-20 7:20 ` Gilles Chanteperdrix
2009-01-20 14:34 ` Steven Seeger
2009-01-20 14:49 ` Gilles Chanteperdrix
2009-01-20 14:55 ` Steven Seeger
2009-01-20 14:56 ` Gilles Chanteperdrix
2009-01-21 0:40 ` Steven Seeger
2009-01-21 9:28 ` Gilles Chanteperdrix
2009-01-21 13:30 ` Steven Seeger
2009-01-21 16:42 ` Steven Seeger
2009-01-21 16:48 ` Gilles Chanteperdrix
2009-01-21 17:07 ` Steven Seeger
2009-01-21 17:11 ` Gilles Chanteperdrix
2009-01-21 17:16 ` Steven Seeger
2009-01-21 17:42 ` Steven Seeger
2009-01-21 18:01 ` Gilles Chanteperdrix
2009-01-21 19:41 ` Steven Seeger
2009-01-21 19:48 ` Gilles Chanteperdrix
2009-01-21 20:05 ` Steven Seeger
2009-01-21 20:08 ` Steven Seeger
2009-01-21 20:45 ` Steven Seeger
2009-01-21 20:47 ` Steven Seeger
2009-01-21 21:13 ` Gilles Chanteperdrix [this message]
2009-01-21 21:20 ` Steven Seeger
2009-01-21 21:26 ` Gilles Chanteperdrix
2009-01-21 21:27 ` Steven Seeger
2009-01-21 21:44 ` Steven Seeger
2009-01-21 21:56 ` Gilles Chanteperdrix
2009-01-21 21:57 ` Steven Seeger
2009-01-26 16:13 ` Gilles Chanteperdrix
2009-01-27 10:28 ` [Xenomai-help] fpu issue on PPC ? roderik.wildenburg
2009-01-27 10:35 ` Gilles Chanteperdrix
2009-01-21 16:43 ` [Xenomai-help] fpu issue Steven Seeger
-- strict thread matches above, loose matches on Subject: below --
2008-02-09 1:36 Steven Seeger
2008-02-09 13:29 ` Gilles Chanteperdrix
2008-02-10 15:32 ` Steven Seeger
2008-02-10 15:41 ` Gilles Chanteperdrix
2008-02-10 16:36 ` Gilles Chanteperdrix
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=49779002.5080704@domain.hid \
--to=gilles.chanteperdrix@xenomai.org \
--cc=sseeger@domain.hid \
--cc=xenomai@xenomai.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.