From: Jan Kiszka <jan.kiszka@web.de>
To: Nicholas Rotella <nrotella@usc.edu>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] Xenomai and usb4rt IRQ issues
Date: Tue, 09 Sep 2014 08:30:10 +0200 [thread overview]
Message-ID: <540E9E72.3000908@web.de> (raw)
In-Reply-To: <CAMoEH9Wg_SpjcK64Y18f6+jWV-2ce31VxCf9+mw7c4zhhGqmtA@mail.gmail.com>
On 2014-09-09 08:28, Nicholas Rotella wrote:
> Hi Jan,
>
> Thanks for your reply. The issue was solved by restricting the system
> ram to 4Gb, something I had overlooked previously. I suppose the IRQs
> were being handled properly all along but the data was being copied
> into a portion of memory which wasn't accessible due to the memory
> limit. Everything works great now. Looking forward to your updated
> driver!
OK, good. Yeah, the 4G issue is known to cause sporadic problems
depending on the DMA buffer location. Looking into this now.
Jan
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: OpenPGP digital signature
URL: <http://www.xenomai.org/pipermail/xenomai/attachments/20140909/11d89617/attachment.sig>
prev parent reply other threads:[~2014-09-09 6:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-27 2:59 [Xenomai] Xenomai and usb4rt IRQ issues Nicholas Rotella
2014-09-09 6:09 ` Jan Kiszka
2014-09-09 6:28 ` Nicholas Rotella
2014-09-09 6:30 ` Jan Kiszka [this message]
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=540E9E72.3000908@web.de \
--to=jan.kiszka@web.de \
--cc=nrotella@usc.edu \
--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.