kern/38229: Realtek 8139C+ problems with more than 2 NICs

[netbsd%luedke.org@localhost]

>Number:         38229
>Category:       kern
>Synopsis:       Realtek 8139C+ problems with more than 2 NICs
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 12 13:50:00 +0000 2008
>Originator:     Frank Luedke
>Release:        4.0 RELEASE
>Organization:
>Environment:
NetBSD  4.0 NetBSD 4.0 (6420) #0: Fri Feb 22 14:08:14 CET 2008  
root@:/usr/src/sys/arch/i386/compile/6420 i386
>Description:
On an appliance with four 8139C+ chipsets on-board only re0 and re1 are working 
without problems. re2 is running in 10 Mbit only, re3 is not working at all. 
Port re3 can be configured using "ifconfig", but Link LEDs stay dark and no 
signal gets transferred.  

Console is always reporting "re3: watchdog timeout" when trying to send data 
through that interface.

I have already tried to block the IRQ re3 is using after I found this as a 
possible solution in the net, but with another IRQ the problem remains.

------- output of dmesg ----------
Realtek Semiconductor 8139 10/100 Ethernet (ethernet network, revision 0x20) at 
? dev 12 function 0 (tag 0x80006000, intrtag 0x80006000, intrswiz 0, intrpin 
0x1, i/o on, mem on, no quirks): RealTek 8139C+ 10/100BaseTX (rev. 0x20)
re1: interrupting at irq 12
re1: Ethernet address 00:90:0b:0a:54:4c
re1: using 64 tx descriptors
rlphy1 at re1 phy 0: Realtek internal PHY
rlphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
------- output of dmesg ----------
Realtek Semiconductor 8139 10/100 Ethernet (ethernet network, revision 0x20) at 
? dev 14 function 0 (tag 0x80007000, intrtag 0x80007000, intrswiz 0, intrpin 
0x1, i/o on, mem on, no quirks): RealTek 8139C+ 10/100BaseTX (rev. 0x20)
re3: interrupting at irq 11
re3: Ethernet address 00:90:0b:0a:54:4a
re3: using 64 tx descriptors
rlphy3 at re3 phy 0: Realtek internal PHY
rlphy3: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
---------------------------------
>How-To-Repeat:
Use a system with more than 2 8139C+ Chipsets. Problem occurs on Kernel 4 with 
or without Patch from bug kern/38172 included.

>Fix:
Unknown.