From owner-soc-status@FreeBSD.ORG Tue Jul 24 22:03:06 2012 Return-Path: Delivered-To: soc-status@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 2DC58106566B for ; Tue, 24 Jul 2012 22:03:06 +0000 (UTC) (envelope-from adutkowski@gmail.com) Received: from mail-yx0-f182.google.com (mail-yx0-f182.google.com [209.85.213.182]) by mx1.freebsd.org (Postfix) with ESMTP id DFDD38FC0A for ; Tue, 24 Jul 2012 22:03:05 +0000 (UTC) Received: by yenl8 with SMTP id l8so86807yen.13 for ; Tue, 24 Jul 2012 15:03:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=ErauD5x+T1MibCxde5ITOLNMxJRu8MPmUZCf1pw1p+g=; b=c5+lwJch6BsXU7V8bQOolsQv8NCe8jkdFj+6/phuGP5siykVbck84cv0NbNqp67pfD FAtIWQYAmsUThDhFYF6tTkcsaVPrrG2T0RMCVhs4vDyRmLxsc6jMpyMza304FgrQEWhF nNliJGIJlYrXu4QDvmLHE3EkYRb65O8yYrKNafjVvrbnbUX6HVQ3kZFwGlaDYSKMZMzp GXjvnYC1UPR07J9q+heNXvzFSGqGN/uGRnMWDD0JGlQ34niA3OCq6sUS9Olu5B89o7s7 b64/THqtUwpHhDCvgyiuI7hbkNsRXAF92OrHjJ/HTIuKMGXDu4PxZ/QfdOlu0zf9nwXU O2dg== MIME-Version: 1.0 Received: by 10.60.12.8 with SMTP id u8mr30432012oeb.46.1343167385223; Tue, 24 Jul 2012 15:03:05 -0700 (PDT) Received: by 10.76.172.168 with HTTP; Tue, 24 Jul 2012 15:03:05 -0700 (PDT) Date: Wed, 25 Jul 2012 00:03:05 +0200 Message-ID: From: Aleksander Dutkowski To: soc-status@freebsd.org, Rafal Jaworowski Content-Type: text/plain; charset=ISO-8859-1 Cc: Subject: #9 Status Report - FreeBSD/arm on BeagleBoard-xM X-BeenThere: soc-status@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Summer of Code Status Reports and Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Jul 2012 22:03:06 -0000 hello! This week I ran into a problem. USB driver is using gpio driver and while locking the gpio mutex [1] in function ti_gpio_pin_setflags(), it causes "Fatal kernel mode data abort: 'External Non-Linefetch Abort (S)'". It is triggered by instruction LDREX in atomic_cmpset_32() [2]. rayddtmhm have the same problem (Raspberry-Pi Broadcom/BCM2835 (ARM1176JZF-S core) ) So, if we won't find any solution in a couple of days, I'll start working on DVI chip driver, and come back to this later [1] https://socsvn.freebsd.org/socsvn/soc2012/aleek/beaglexm-armv6/sys/arm/ti/ti_gpio.c [2] https://socsvn.freebsd.org/socsvn/soc2012/aleek/beaglexm-armv6/sys/arm/include/atomic.h -- pozdrawiam Aleksander Dutkowski