From: Frank Rowand <frank.rowand@am.sony.com>
To: Thomas Gleixner <tglx@linutronix.de>,
<linux-kernel@vger.kernel.org>, <linux-rt-users@vger.kernel.org>
Subject: linux-3.6.7-rt18 smoke test on ARM
Date: Thu, 29 Nov 2012 19:24:44 -0800 [thread overview]
Message-ID: <50B826FC.7060502@am.sony.com> (raw)
3.6.7-rt18 builds and boots on some ARM boards (PandaBoard, Realview) for:
- SMP, PREEMPT_RT_FULL
- SMP, PREEMPT_NONE
- UP, PREEMPT_RT_FULL
- UP, PREEMPT_NONE
A patch is required to resolve a BUG_ON() from preempt_schedule_irq().
The patch is available at https://lkml.org/lkml/2012/11/29/432
The PandaBoard frequently fails to boot with an eth0 error. I have
only seen this for SMP, PREEMPT_NONE. This same error also occurs
in 3.6.7 without the RT_PREEMPT patches applied, so this does not
appear to be an RT_PREEMPT issue. The boot error starts with the
time out on ep0out:
[ 3.264373] smsc95xx 1-1.1:1.0: usb_probe_interface
[ 3.269500] smsc95xx 1-1.1:1.0: usb_probe_interface - got id
[ 3.275543] smsc95xx v1.0.4
[ 8.078674] smsc95xx 1-1.1:1.0: eth0: register 'smsc95xx' at usb-ehci-omap.0-1.1, smsc95xx USB 2.0 Ethernet, 82:b9:1d:fa:67:0d
[ 8.091003] hub 1-1:1.0: state 7 ports 5 chg 0000 evt 0002
[ 13.509918] usb 1-1.1: swapper/0 timed out on ep0out len=0/4
[ 13.515869] smsc95xx 1-1.1:1.0: eth0: Failed to write register index 0x00000108
[ 13.523559] smsc95xx 1-1.1:1.0: eth0: Failed to write ADDRL: -110
[ 13.529998] IP-Config: Failed to open eth0
-Frank
reply other threads:[~2012-11-30 3:24 UTC|newest]
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