Bug 186526 - Very slow network with tulip driver
Very slow network with tulip driver
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: John W. Linville
Brian Brock
Depends On:
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Reported: 2006-03-23 21:00 EST by Maciej Babinski
Modified: 2007-11-30 17:11 EST (History)
2 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2006-06-30 10:29:50 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Maciej Babinski 2006-03-23 21:00:49 EST
Description of problem:
Terrible network performance on tulip-based network card. Can't get above about
30k/s transfers on an unloaded 100Mbit LAN.

Version-Release number of selected component (if applicable):
Substituting kernel 2.6.15-1.1833_FC4smp solves the problem.

Additional info:

lspci info for the card:
00:0d.0 Ethernet controller: Lite-On Communications Inc LNE100TX (rev 20)
        Subsystem: Lite-On Communications Inc LNE100TX
        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: 64
        Interrupt: pin A routed to IRQ 4
        Region 0: I/O ports at e800 [size=256]
        Region 1: Memory at febfdf00 (32-bit, non-prefetchable) [size=256]
        Expansion ROM at feb80000 [disabled] [size=256K]
Comment 1 John W. Linville 2006-05-25 14:41:25 EDT
Is this still a problem w/ current FC5 kernels?

If so, please try the FC5.netdev kernels:


Does the issue still occur with the FC5.netdev kernels?
Comment 2 Maciej Babinski 2006-05-25 15:48:14 EDT
Yes, it is. I've been using 2.6.16-1.2069_FC4.netdev.13smp for a while, and
while the machine acts normally at boot, the problem shows up again after some
time has passed, usually a week or two, sometimes a few days. Once it does start
up, a soft reboot is not sufficient -- the machine needs to be power-cycled.

I am currently installing 2.6.16-1.2122.2.3_FC5.netdev.3 (smp), and will report
if I experience any more problem.s
Comment 3 John W. Linville 2006-06-30 10:29:50 EDT
Optimistically presuming that the lack of further complaint indicates 
improvement of the situation... :-)

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