Subject: fxp network driver and pauses question..
To: None <firstname.lastname@example.org>
From: Marc Tooley <netbsdMLpostNO@SPAM.quake.ca>
Date: 12/03/2004 09:41:53
I've been running NetBSD for.. well pretty much forever it seems, and
recently (within the last year I guess) I've bumped into some troubles
when running most NIC (Intel etherexpress to 3com 3c905) under the
netbsd releases in that time period. Maybe it's just me but for some
reason putting the card into promiscuous mode sometimes freezes all
network operations for about a second or two. Similar UNIX-like systems
don't show any tcpdump output for a moment, but they all continue to
pass in/out network traffic from the rest of the system while the
interface is being put into promisc.
Probably not related to pr/22120 because it happens in a 3com as well.
NetBSD 2.99.10 (DRACO) #9: Thu Nov 25 15:36:18 PST 2004
fxp0 at pci1 dev 2 function 0: i82559 Ethernet, rev 8
fxp0: interrupting at irq 11
fxp0: Ethernet address 00:d0:b7:75:c6:40
inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 4
inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp1 at pci1 dev 3 function 0: i82559 Ethernet, rev 8
fxp1: interrupting at irq 5
fxp1: Ethernet address 00:d0:b7:ba:91:13
inphy1 at fxp1 phy 1: i82555 10/100 media interface, rev. 4
inphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
NetBSD loki 1.6.2 NetBSD 1.6.2 (GENERIC) #0: Tue Feb 10 21:53:10 UTC
ex0 at pci0 dev 10 function 0: 3Com 3c905B-TX 10/100 Ethernet (rev.
ex0: interrupting at irq 10
ex0: MAC address 00:01:02:c8:50:b2
exphy0 at ex0 phy 24: 3Com internal media interface
exphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
ex1 at pci0 dev 12 function 0: 3Com 3c905B-TX 10/100 Ethernet (rev.
ex1: interrupting at irq 11
ex1: MAC address 00:01:02:c9:45:c2
exphy1 at ex1 phy 24: 3Com internal media interface
exphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
It does not seem to happen on:
NetBSD kimmie 2.99.10 NetBSD 2.99.10 (kimmie) #10: Thu Nov 25 15:04:27
PST 2004 root@kimmie:/usr/src-current/sys/arch/i386/compile/kimmie
ne0 at pci0 dev 13 function 0: Realtek 8029 Ethernet
ne0: Ethernet address 00:60:67:2d:3b:39
ne0: 10base2, 10baseT, 10baseT-FDX, auto, default [0x00 0x30] auto
ne0: interrupting at irq 10
... which seems strange to me because RealTek seem to be traditionally
associated with ultra-cheap, low-end crappy NICs. They also seem to get
starved out in a busy network, while the others don't.
Comments appreciated. Note that my email address cannot receive email,
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