Date: Mon, 4 Oct 2004 17:43:18 +1300 (NZDT) From: Philip Murray <pmurray@nevada.net.nz> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/72293: de(4) NIC performance degradation with debug.mpsafenet=1 Message-ID: <200410040443.i944hImF004326@mirage.nevada.net.nz> Resent-Message-ID: <200410040450.i944oN18071956@freefall.freebsd.org>
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>Number: 72293 >Category: kern >Synopsis: de(4) NIC performance degradation with debug.mpsafenet=1 >Confidential: no >Severity: critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Oct 04 04:50:23 GMT 2004 >Closed-Date: >Last-Modified: >Originator: Philip Murray >Release: FreeBSD 5.3-BETA6 i386 >Organization: >Environment: System: FreeBSD mirage.office.open2view.com 5.3-BETA6 FreeBSD 5.3-BETA6 #5: Fri Oct 1 21:10:13 NZST 2004 root@mirage.office.open2view.com:/usr/obj/usr/src/sys/MIRAGE i386 de0: <Digital 21140A Fast Ethernet> port 0xc400-0xc47f mem 0xdd021000-0xdd02107f irq 11 at device 3.0 on pci2 de0: [GIANT-LOCKED] de0: 21140A [10-100Mb/s] pass 2.2 de0: Ethernet address: 00:80:c8:64:dd:3d de0@pci2:3:0: class=0x020000 card=0x11001186 chip=0x00091011 rev=0x22 hdr=0x00 vendor = 'Digital Equipment Corporation' device = 'DecChip 21140 Fast Ethernet Adapter' class = network subclass = ethernet I can provide more information on request (not sure what else is needed atm) >Description: After booting the interface will work for a short time, as traffic passes through it, it suddenly gets very slow and unuseable. Unable to SSH over 100Mbit to it and doesn't respond to pings. Booting with debug.mpsafenet=0 in /boot/loader.conf resolves it. >How-To-Repeat: Boot with debug.mpsafenet=1 with a de(4) NIC >Fix: Boot with debug.mpsafenet=0 >Release-Note: >Audit-Trail: >Unformatted:
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