I just had a weird panic with wm(4) on the Alpha using an i82542 card.

wm0 at pci1 dev 1 function 0: Intel i82542 1000BASE-X Ethernet, rev. 3
wm0: interrupting at dec 6600 irq 24
wm0: Ethernet address 00:d0:b7:82:33:b0
wm0: 1000baseSX, 1000baseSX-FDX, auto

I had done all this virtually the same yesterday and it worked fine, but
this time it went BOOM!

Should I send-pr, or is this wimpy little i82542 not worth the effort?

[console]<@> # ifconfig wm0
wm0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        address: 00:d0:b7:82:33:b0
        media: Ethernet autoselect (none)
        status: no carrier
[console]<@> # ifconfig -m wm0
wm0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        address: 00:d0:b7:82:33:b0
        media: Ethernet autoselect (none)
        status: no carrier
        supported Ethernet media:
                media 1000baseSX
                media 1000baseSX mediaopt full-duplex
                media autoselect
[console]<@> # ifconfig -m wm0 media 1000baseSX mediaopt full-duplex
[console]<@> # ifconfig -m wm0                                      
wm0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        address: 00:d0:b7:82:33:b0
        media: Ethernet 1000baseSX full-duplex
        status: active
        supported Ethernet media:
                media 1000baseSX
                media 1000baseSX mediaopt full-duplex
                media autoselect
[console]<@> # ifconfig wm0 inet 205.207.148.230 up
wm0: unable to load rx DMA map 1, error = 35
panic: wm_add_rxbuf

CPU 1: fatal kernel trap:

CPU 1    trap entry = 0x3 (instruction fault)
CPU 1    a0         = 0x1
CPU 1    a1         = 0xfffffd01fc0003f8
CPU 1    a2         = 0xfffffd01fc0003fd
CPU 1    pc         = 0xfffffc000056cc44
CPU 1    ra         = 0xfffffc000043d460
CPU 1    pv         = 0xfffffc000056cc40
CPU 1    curproc    = 0xfffffc008753c5c8
CPU 1        pid = 57, comm = ifconfig

panic: trap

CPU 1: fatal kernel trap:

CPU 1    trap entry = 0x3 (instruction fault)
CPU 1    a0         = 0x1
CPU 1    a1         = 0xfffffd01fc0003f8
CPU 1    a2         = 0xfffffd01fc0003fd
CPU 1    pc         = 0xfffffc000056cc44
CPU 1    ra         = 0xfffffc000043d460
CPU 1    pv         = 0xfffffc000056cc40
CPU 1    curproc    = 0xfffffc008753c5c8
CPU 1        pid = 57, comm = ifconfig


then it went in a loop of repeating "panic: trap"s and I had to break
into the RMC and hit the virtual reset button.

-- 
						Greg A. Woods

+1 416 218-0098                  VE3TCP            RoboHack <woods@robohack.ca>
Planix, Inc. <woods@planix.com>          Secrets of the Weird <woods@weird.com>