Date: Thu, 23 Jun 2005 18:43:22 -0400 From: Martin Cracauer <cracauer@cons.org> To: freebsd-current@freebsd.org Subject: Driver that works only when module is loaded late, not from loader.conf Message-ID: <20050623184322.A67708@cons.org>
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I didn't see a reply but I think this might be be symptom of a larger issue that we might have to fix for 6.0. I found an Ethernet driver which works fine if you load it via kldload in a running system but it does not work when loaded in loader.conf. The bug is http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/82497 Here's the cut'n'paste: ----------------------- Release -current of today Environment FreeBSD wings.cons.org 6.0-CURRENT FreeBSD 6.0-CURRENT #4: Tue Jun 21 16:37:57 EDT 2005 cracauer@wings.cons.org:/usr/src/sys/amd64/compile/WINGS64 amd64 Description I recently got an AMD64 socket 754 board with Via K8T800, an Abit K8V-Pro, which has a if_vge Gigabit Ethernet. This works only when you load the module after the full machine is up. If you put if_vge_load="YES" into loader.conf you get: Jun 21 19:32:46 wings kernel: vge0: <VIA Networking Gigabit Ethernet> port 0xb8\ 00-0xb8ff mem 0xe3014000-0xe30140ff irq 22 at device 14.0 on pci0 Jun 21 19:32:46 wings kernel: vge0: MII read timed out Jun 21 19:32:46 wings kernel: vge0: failed to start MII autopoll Jun 21 19:32:46 wings kernel: vge0: MII without any phy! Jun 21 19:32:46 wings kernel: device_attach: vge0 attach returned 6 If you don't load it from loader.conf it works fine. I have mii compiled into the kernel. How-To-Repeat Put if_vge_load="YES" into loader.conf reboot. You will not get an interface and you'll have the above message in /var/log/messages. Fix You can work around it by loading the module later. It is not clear to me what is going on here. Since I have mii statically compiled into the kernel it is not a case of just forgetting to load a dependency.
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