Date: Mon, 29 Jun 2009 13:29:49 +0200 From: Sebastian Huber <sebastian.huber@embedded-brains.de> To: freebsd-usb@FreeBSD.org Subject: Potential problem with USB_THREAD_SUSPEND()? Message-ID: <4A48A5AD.9040508@embedded-brains.de>
next in thread | raw e-mail | index | archive | help
Hi,
USB_THREAD_SUSPEND(p) is defined as {kproc|kthread}_suspend(p, 0). This means
that it will wait until the corresponding thread recognizes its suspend request
and suspends itself. It seems that {kproc|kthread}_suspend_check() will be
used nowhere in the USB system. Thus the USB_THREAD_SUSPEND() will block
forever in most cases? It is only used in usb_proc_drain() during cold boot.
Have a nice day!
--
Sebastian Huber, Embedded Brains GmbH
Address : Obere Lagerstr. 30, D-82178 Puchheim, Germany
Phone : +49 89 18 90 80 79-6
Fax : +49 89 18 90 80 79-9
E-Mail : sebastian.huber@embedded-brains.de
PGP : Public key available on request
Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4A48A5AD.9040508>