Messages in this thread |  | | Date | Thu, 10 May 2001 20:46:56 +0100 (BST) | From | Leonid Timochouk <> | Subject | Problem with dmfe |
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Hello,
I have installed Linux 2.4.4 on our remotely-administered dedicated Web server (600MHz Celeron), and strange effects occurred with the Davicom DM9102 network card. It was active but apparently VERY slow, 85% packet loss in ping. I could connect to the machine but could not do anything useful. The system had to be rebooted into the previous configuration (2.2.12) which works fine.
I then examined the kernel logs for 2.4.4 and found the following:
PCI: Using IRQ router PIIX [8086/2420] at 00:1f.0 PCI: Found IRQ 3 for device 00:01.0
eth0: Davicom DM9102 at 0xc000, 00:d0:09:1e:61:51, IRQ 3
Thus, device 00:01.0 (video card) shares IRQ with the net card. Could it be the source of the problem? Under 2.2.12, pciutils show the following info for these devices:
00:01.0 VGA compatible controller: Intel Corporation 82810 CGC [Chipset Graphics Controller] (rev 02) (prog-if 00 [VGA]) Subsystem: Intel Corporation: Unknown device 7121 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 set Interrupt: pin A routed to IRQ 0 Region 0: Memory at e0000000 (32-bit, prefetchable) Region 1: Memory at e6000000 (32-bit, non-prefetchable) Capabilities: [dc] Power Management version 1 Flags: PMEClk- AuxPwr- DSI+ D1- D2- PME- Status: D0 PME-Enable- DSel=0 DScale=0 PME-
01:04.0 Ethernet controller: Davicom Semiconductor, Inc. Ethernet 100/10 MBit (rev 10) Subsystem: Unknown device 0291:8212 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 20 min, 40 max, 128 set Interrupt: pin A routed to IRQ 3 Region 0: I/O ports at c000 Region 1: Memory at e5000000 (32-bit, non-prefetchable) [disabled] Expansion ROM at e4000000 [disabled] Capabilities: [50] Power Management version 1 Flags: PMEClk- AuxPwr+ DSI+ D1- D2- PME- Status: D0 PME-Enable+ DSel=0 DScale=0 PME-
Thus, it says IRQ for the VGA card is 0, not 3 (also strange).
Does anyone have an idea what is going on?
Sincerely, =============================================================== Dr. Leonid A. Timochouk Computing Laboratory, University of Kent at Canterbury, England ===============================================================
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