2.6.10-rc3: tulip-driver: tulip_stop_rxtx() failed

From: frahm
Date: Fri Dec 10 2004 - 19:32:06 EST

I would like give my feedback on a recent modification of the tulip
driver in 2.6.10-rc3 by:

John W. Linville:
o tulip: make tulip_stop_rxtx() wait for DMA to fully stop

I have a sitecom network card which happens to work with the tulip
driver. I have observed in the kernel version 2.6.10-rc3 when I
deconfigure the device with "ifconfig eth1 down" (or also with
"dhcpcd -k eth1"), I get the following message in dmesg and
0000:00:0e.0: tulip_stop_rxtx() failed
The message did not appear until 2.6.10-rc2 and I assume it is due to
the modification of "John W. Linville" mentioned above.

This message does not seem to create any problem for me and I do not
require any assistance. I can configure and deconfigure the device as
usual and the network card appears to work properly. However, I thought
this information might be useful for debugging purposes for the

Since this is related to DMA this might also be a hardward bug since I
use a 5 year old motherboard and since 2.4.21 I can no longer use DMA
for my old cdrom. DMA for the harddisk works properly. Furthermore I
have two network cards, the first one (eth0) is:

3c59x: Donald Becker and others. www.scyld.com/network/vortex.html
0000:00:0d.0: 3Com PCI 3c905C Tornado at 0xa800. Vers LK1.1.19

and the second one is the sitecom card which appears in dmesg as:

Linux Tulip driver version 1.1.13 (May 11, 2002)
PCI: Found IRQ 10 for device 0000:00:0e.0
PCI: Sharing IRQ 10 with 0000:00:0a.0
tulip0: MII transceiver #1 config 1000 status 786d advertising 05e1.
eth1: ADMtek Comet rev 17 at 0001a400, 00:0C:F6:03:DA:D3, IRQ 10.

When I deactivate my internet connection (I am using a modem which
provides a dhcp-serveur) by "dhcpcd -k eth1" I obtain in
Dec 11 01:14:44 albireo dhcpcd[1867]: terminating on signal 1
Dec 11 01:14:44 albireo kernel: 0000:00:0e.0: tulip_stop_rxtx() failed
Dec 11 01:14:44 albireo dhcpcd.exe: interface eth1 has been brought down

when I reactivate the connection afterwards with "dhcp eth1" I get:
Dec 11 01:16:09 albireo dhcpcd.exe: interface eth1 has been configured with new IP=xx.xx.xx.xx
Dec 11 01:16:12 albireo kernel: 0000:00:0e.0: tulip_stop_rxtx() failed
Dec 11 01:16:12 albireo kernel: eth1: Setting full-duplex based on MII#1 link partner capability of 4061.

Afterwards the connection works properly.

For information the values of /proc/interrupts:
0: 5010413 XT-PIC timer
1: 10212 XT-PIC i8042
2: 0 XT-PIC cascade
5: 0 XT-PIC uhci_hcd, eth0
10: 5357 XT-PIC eth1, aic7xxx
12: 140379 XT-PIC i8042
14: 7021 XT-PIC ide0
15: 1650 XT-PIC ide1
NMI: 0
ERR: 0

and of lspci:
00:00.0 Host bridge: Intel Corporation 440BX/ZX - 82443BX/ZX Host bridge (rev 03)
00:01.0 PCI bridge: Intel Corporation 440BX/ZX - 82443BX/ZX AGP bridge (rev 03)
00:04.0 ISA bridge: Intel Corporation 82371AB PIIX4 ISA (rev 02)
00:04.1 IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 01)
00:04.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01)
00:04.3 Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 02)
00:0a.0 SCSI storage controller: Adaptec AHA-7850 (rev 03)
00:0d.0 Ethernet controller: 3Com Corporation 3c905C-TX [Fast Etherlink] (rev 78)
00:0e.0 Ethernet controller: Bridgecom, Inc: Unknown device 0985 (rev 11)
01:00.0 VGA compatible controller: ATI Technologies Inc 3D Rage Pro AGP 1X/2X (rev 5c)

I have no idea if my observation is really important or indicates a bug.
I thought it might be useful to give my feedback before 2.6.10 comes out
in case there is a bug.
I can provide further information on my configuration if necessary.
Please make in this case a cc to frahm_at_irsamc_dot_ups-tlse_dot_fr
since I am not subscribed to the mailing list.

Greetings, Klaus Frahm.
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