>Number:         20467
>Category:       kern
>Synopsis:       the tl driver slows down the system
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Feb 22 03:51:00 PST 2003
>Closed-Date:
>Last-Modified:
>Originator:     Mario Kemper
>Release:        NetBSD 1.6O  Sources of feb 21 2003
>Organization:
Mario Kemper
magick@zhadum.de
>Environment:
	
	
System: NetBSD bundy 1.6O NetBSD 1.6O (BUNDY) #3: Sat Feb 22 10:25:27 CET 2003 root@bundy:/usr/netbsd-src/src-obj/sys/arch/i386/compile/BUNDY i386
Architecture: i386
Machine: i386
>Description:

i installed a Compaq Dual Port Netelligent today. The first thing
i noticed are hundreds of "timeout delayed -x" Messages. And thats a few
hundreds a minute continously.
The second thing is, that the mouse hangs when there's traffic on the line.
I use one port of the card for DSL via pppoe. The second port ist connected
to a switch.

This is what dmesg says:

tl0 at pci3 dev 0 function 0
tl0: Compaq Dual Port Netelligent 10/100 TX
tl0: Ethernet address 00:08:c7:5d:66:80
tl0: interrupting at apic 2 int 2 (irq 5)
nsphy0 at tl0 phy 1: DP83840 10/100 media interface, rev. 1
nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
tlphy0 at tl0 phy 31: ThunderLAN 10BASE-T media interface, rev. 5
tlphy0: 10base5
tl1 at pci3 dev 1 function 0
tl1: Compaq Dual Port Netelligent 10/100 TX
tl1: Ethernet address 00:08:c7:5d:66:00
tl1: interrupting at apic 2 int 4 (irq 9)
nsphy1 at tl1 phy 1: DP83840 10/100 media interface, rev. 1
nsphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
tlphy1 at tl1 phy 31: ThunderLAN 10BASE-T media interface, rev. 5
tlphy1: 10base5

irq 9 and 5 are shared with the USB controllers which could explain the
mouse hangs:
tl0: interrupting at apic 2 int 2 (irq 5)
tl1: interrupting at apic 2 int 4 (irq 9)
siop0: interrupting at apic 2 int 22 (irq 9)
pciide0: using apic 2 int 23 (irq 9) for native-PCI interrupt
bktr0: interrupting at apic 2 int 21 (irq 5)
uhci1: interrupting at apic 2 int 23 (irq 9)
ohci0: interrupting at apic 2 int 21 (irq 5)
ohci1: interrupting at apic 2 int 22 (irq 9)
ehci0: interrupting at apic 2 int 23 (irq 9)
tl0: interrupting at apic 2 int 2 (irq 5)
tl1: interrupting at apic 2 int 4 (irq 9)
siop0: interrupting at apic 2 int 22 (irq 9)
pciide0: using apic 2 int 23 (irq 9) for native-PCI interrupt
bktr0: interrupting at apic 2 int 21 (irq 5)
uhci1: interrupting at apic 2 int 23 (irq 9)

I also put the card into another slot. The jumpy mouse disappeared.
I did a kernel compile and whenever there was traffic on the line
the compile job almost stopped.

The whole system feels slow when the card is active. I suppose that there
are too many interrupts and that the "timeout delayed" messages are only
a symptom. I recompiled a kernel without DEBUG. The messages disappeared but
the system behaviour remained. When i do "ifconfig tl0 down" the
messages stop.
 
>How-To-Repeat:
	Insert a Compaq Dual Port Netelligent and use it.
>Fix:
	Not known.
>Release-Note:
>Audit-Trail:
>Unformatted: