Date: Mon, 22 Mar 2004 13:22:20 -0800 (PST) From: Bin Ren <br260@cam.ac.uk> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/64594: 5.2-CURRENT: driver 'rl' (RealTek 8129/8139 Fast Ethernet device driver) is broken with DEVICE_POLLING enabled Message-ID: <200403222122.i2MLMKgx098335@www.freebsd.org> Resent-Message-ID: <200403222130.i2MLUHdO082124@freefall.freebsd.org>
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>Number: 64594 >Category: kern >Synopsis: 5.2-CURRENT: driver 'rl' (RealTek 8129/8139 Fast Ethernet device driver) is broken with DEVICE_POLLING enabled >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Mar 22 13:30:17 PST 2004 >Closed-Date: >Last-Modified: >Originator: Bin Ren >Release: FreeBSD 5.2-CURRENT >Organization: University of Cambridge, UK >Environment: This machine has one AMD64 3200+ CPU, MSI K8T Neo motherboard, one Realtek 8139 10/100Mbps ethernet card (rl0) connected by 10M ethernet to Internet. >Description: Everything works fine but when I compiled kernel with 'options DEVICE_POLLING' and 'options HZ=1000', the kernel boots fine, but fails to bring up rl0 automatically as indicated in '/etc/rc.conf' and fails to assign static IP address to rl0 and fails to add route to default gateway as indicated in '/etc/rc.conf'. According to 'kern.polling.enable=0', device polling is disabled, and I keep it disabled unless I mention otherwise. When I manually configure rl0 using 'ifconfig' and 'route', rl0 doesn't work as I cannot ping other machines (DNS, gateway). More mysterious (and thus an important clue) is even 'ping 127.0.0.1' receives no response. When I 'sysctl kern.polling.enable=1', I see 'kern.polling.suspects' a very very large number (> 750). This indicates sth wrong in the polling implementation. >How-To-Repeat: Just get a Realtek 8139 card, compile 5.2-current with polling enabled, boot into this kernel and the problem is there. >Fix: N/A >Release-Note: >Audit-Trail: >Unformatted:
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