Don't know if this will tell you anything useful, but I thought I might as well turn on the detailed debugging when I recompiled the module anyway: lanstreamer::streamer_init_one, entry pdev cfdd6400 ACPI: PCI interrupt 0000:02:01.0[A] -> GSI 10 (level, low) -> IRQ 10 lanstreamer: pio_start 8800 pio_end 88ff pio_len 100 pio_flags 101 lanstreamer: mmio_start e0000000 mmio_end e00000ff mmio_len 200 mmio_flags 100 LanStreamer.c v0.4.0 03/08/01 - Mike Sullivan v0.5.3 11/13/02 - Kent Yoder tr%d: 0000:02:01.0. I/O at 8800, MMIO at d0a1a000, using irq 10 BCTL: 2200 GPR: 4e SISRMASK: 0 tr%d: Ringspeed autosense mode on GPR = 4e LAPWWO: 7ce, LAPA: 0 LAPE: 0 initialization response srb dump: 800f:0:0:0:2f0:140:30e:266:1b6:160: UAA resides at 2f0 Adapter address: 08:00:5a:fd:42:bf: lanstreamer::streamer_init_one, entry pdev cfdd6000 ACPI: PCI interrupt 0000:02:02.0[A] -> GSI 12 (level, low) -> IRQ 12 lanstreamer: pio_start 8400 pio_end 84ff pio_len 100 pio_flags 101 lanstreamer: mmio_start df800000 mmio_end df8000ff mmio_len 200 mmio_flags 100 LanStreamer.c v0.4.0 03/08/01 - Mike Sullivan v0.5.3 11/13/02 - Kent Yoder tr%d: 0000:02:02.0. I/O at 8400, MMIO at d0a1c000, using irq 12 BCTL: 2200 GPR: 4c SISRMASK: 0 GPR = 4c LAPWWO: 7ce, LAPA: 0 LAPE: 0 initialization response srb dump: 800f:0:0:0:2f0:140:30e:266:1b6:160: UAA resides at 2f0 Adapter address: 08:00:5a:fd:42:c0: lanstreamer::streamer_init_one, entry pdev cfdd8c00 ACPI: PCI interrupt 0000:02:03.0[A] -> GSI 5 (level, low) -> IRQ 5 lanstreamer: pio_start 8000 pio_end 80ff pio_len 100 pio_flags 101 lanstreamer: mmio_start df000000 mmio_end df0000ff mmio_len 200 mmio_flags 100 LanStreamer.c v0.4.0 03/08/01 - Mike Sullivan v0.5.3 11/13/02 - Kent Yoder tr%d: 0000:02:03.0. I/O at 8000, MMIO at d0be2000, using irq 5 BCTL: 2200 GPR: 4e SISRMASK: 0 GPR = 4e LAPWWO: 7ce, LAPA: 0 LAPE: 0 initialization response srb dump: 800f:0:0:0:2f0:140:30e:266:1b6:160: UAA resides at 2f0 Adapter address: 08:00:5a:fd:42:c1: BMCTL: 4440 pending ints: 0 LAPWWO: 7ce, LAPA: 7ce LAPE: 0 SISR Mask = 8020 srb open request: 300:fe00:fe00:0:18c0:0:0:0:0:0:0:0:0:0:0:0: SISR_MASK: 8020 srb open response: 300:0:fe00:0:7f8:7e4:33c:0:77c:300:Loc 0 = ffff Loc 1 = ffff Loc 2 = ffff Loc 3 = ffff Loc 4 = ffff Loc 5 = ffff Loc 6 = ffff next ffff, fs ff, len ffff tr1: Received MAC Frame, details: tr1: MAC Frame Dest. Addr: 20:6b:65:72:6e:65 tr1: MAC Frame Srce. Addr: 6c:3a:20:53:49:53 BMCTL: 4020 SISR MASK: 807c tr1: Node Address: 42c0:5afd:0800 tr1: Functional Address: 0000:0000 tr1: NAUN Address: 7181:4c08:00a0 tr1: no IPv6 routers present device tr1 entered promiscuous mode BMCTL: 4440 pending ints: 0 LAPWWO: 7ce, LAPA: 7ce LAPE: 0 SISR Mask = 8020 srb open request: 300:fe00:fe00:0:18c0:0:0:0:0:0:0:0:0:0:0:0: SISR_MASK: 8020 srb open response: 300:0:fe00:0:7f8:7e4:33c:0:77c:300:<6>tr0: Opened in 16 Mbps mode Loc 0 = ffff Loc 1 = ffff Loc 2 = ffff Loc 3 = ffff Loc 4 = ffff Loc 5 = ffff Loc 6 = ffff next ffff, fs ff, len ffff tr0: Received MAC Frame, details: tr0: MAC Frame Dest. Addr: 20:6b:65:72:6e:65 tr0: MAC Frame Srce. Addr: 6c:3a:20:53:49:53 BMCTL: 4020 SISR MASK: 807c tr0: Node Address: 42bf:5afd:0800 tr0: Functional Address: 0000:0000 tr0: NAUN Address: 7181:4c08:00a0 tr0: no IPv6 routers present I also tried the STREAMER_NETWORK_MONITOR, but I don't know how to use it apart from the /proc output: canardo:/home/bjorn# cat /proc/net/streamer_tr IBM LanStreamer/MPC Chipset Token Ring Adapters tr2: Adapter Address : Node Address : Functional Addr tr2: 08:00:5a:fd:42:c1 : 00:00:41:c9:00:b0 : b1:d0:20:9f tr2: Token Ring Parameters Table: tr2: Physical Addr : Up Node Address : Poll Address : AccPri : Auth Src : Att Code : tr2: 00:00:5b:c8 : 04:1d:87:c9:d4:d4 : 2b:c0:a0:82:12:c1 : 2bc0 : 95a1 : 13c0 : tr2: Source Address : Bcn T : Maj. V : Lan St : Lcl Rg : Mon Err : Frame Correl : tr2: a0:82:12:c1:00:00 : 0000 : ee7f : 1ac0 : a082 : 12c1 : 80cd : tr2: Beacon Details : Tx : Rx : NAUN Node Address : NAUN Node Phys : tr2: : 24e0 : 2bc0 : 23:c7:00:00:00:00 : 00:50:41:c9 : tr1: Adapter Address : Node Address : Functional Addr tr1: 08:00:5a:fd:42:c0 : 00:00:41:c9:00:b0 : b1:d0:20:9f tr1: Token Ring Parameters Table: tr1: Physical Addr : Up Node Address : Poll Address : AccPri : Auth Src : Att Code : tr1: 00:00:5b:c8 : 04:1d:53:72:82:82 : 2b:c0:a0:82:12:c1 : 2bc0 : 95a1 : 13c0 : tr1: Source Address : Bcn T : Maj. V : Lan St : Lcl Rg : Mon Err : Frame Correl : tr1: a0:82:12:c1:00:00 : 0000 : 1d00 : 0000 : a082 : 12c1 : 80cd : tr1: Beacon Details : Tx : Rx : NAUN Node Address : NAUN Node Phys : tr1: : 24e0 : 2bc0 : 23:c7:00:00:00:00 : 00:50:41:c9 : tr0: Adapter Address : Node Address : Functional Addr tr0: 08:00:5a:fd:42:bf : 00:00:41:c9:00:b0 : b1:d0:20:9f tr0: Token Ring Parameters Table: tr0: Physical Addr : Up Node Address : Poll Address : AccPri : Auth Src : Att Code : tr0: 00:00:75:74 : 68:20:53:72:82:82 : 2b:c0:a0:82:12:c1 : 2bc0 : 95a1 : 13c0 : tr0: Source Address : Bcn T : Maj. V : Lan St : Lcl Rg : Mon Err : Frame Correl : tr0: a0:82:12:c1:00:00 : 0000 : 1d00 : 0000 : a082 : 12c1 : 80cd : tr0: Beacon Details : Tx : Rx : NAUN Node Address : NAUN Node Phys : tr0: : 24e0 : 2bc0 : 23:c7:00:00:00:00 : 00:50:41:c9 : Bjørn - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html