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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
