kern/52111: wmX i82574L inoperative in monoprocessor mode (i386)

[kardel%netbsd.org@localhost]

>Number:         52111
>Category:       kern
>Synopsis:       wmX i82574L inoperative in monoprocessor mode (i386)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Mar 25 22:15:00 +0000 2017
>Originator:     kardel%netbsd.org@localhost
>Release:        NetBSD 7.99.66-20170324
>Organization:
	
>Environment:
	
	
System: NetBSD Gateway 7.99.66 NetBSD 7.99.66 (GATEWAY) #1: Fri Mar 24 22:53:34 CET 2017 kardel%pip.kardel.name@localhost:/fs/raid2a/src/NetBSD/act/src/obj.i386/sys/arch/i386/compile/GATEWAY i386
Architecture: i386
Machine: i386
>Description:
When booting a Soekris 6501 in mono processor mode (boot -1) wm interfaces are inoperative
as arp resolution does not complete at all.
On an amd64 system with other wm interfaces (i82572EI, i82583V) mono processor mode does not impair
interface operation.

Soekris interfaces:
wm0 at pci5 dev 0 function 0: Intel i82574L (rev. 0x00)
wm0: for TX and RX interrupting at msix0 vec 0 affinity to 0
wm0: for TX and RX interrupting at msix0 vec 1 affinity to 1
wm0: for LINK interrupting at msix0 vec 2
wm0: PCI-Express bus
wm0: 2048 words (8 address bits) SPI EEPROM, version 2.1.2, Image Unique ID 0000ffff
wm0: Ethernet address 00:00:aa:bb:cc:ec
wm1 at pci6 dev 0 function 0: Intel i82574L (rev. 0x00)
wm1: for TX and RX interrupting at msix1 vec 0 affinity to 0
wm1: for TX and RX interrupting at msix1 vec 1 affinity to 1
wm1: for LINK interrupting at msix1 vec 2
wm1: PCI-Express bus
wm1: 64 words (8 address bits) SPI EEPROM, version 2.1.2, Image Unique ID ffffed5e
wm1: Ethernet address 00:00:aa:bb:cc:ed
wm2 at pci10 dev 0 function 0: Intel i82574L (rev. 0x00)
wm2: for TX and RX interrupting at msix2 vec 0 affinity to 0
wm2: for TX and RX interrupting at msix2 vec 1 affinity to 1
wm2: for LINK interrupting at msix2 vec 2
wm2: PCI-Express bus
wm2: 64 words (8 address bits) SPI EEPROM, version 2.1.2, Image Unique ID ffffee5e
wm2: Ethernet address 00:00:aa:bb:cc:ee
wm3 at pci11 dev 0 function 0: Intel i82574L (rev. 0x00)
wm3: for TX and RX interrupting at msix3 vec 0 affinity to 0
wm3: for TX and RX interrupting at msix3 vec 1 affinity to 1
wm3: for LINK interrupting at msix3 vec 2
wm3: PCI-Express bus
wm3: 64 words (8 address bits) SPI EEPROM, version 2.1.2, Image Unique ID ffffef5e
wm3: Ethernet address 00:00:aa:bb:cc:ef

>How-To-Repeat:
	Boot a current (20170324) i386 version on a Soekris 6501 in mono procesor
	mode (boot -1). Observe that no ARP resultion is done,
>Fix:
	Stay in multiprocessor mode :-( - makes debugging other defects much harder.

>Unformatted: