Bug 116221 - TCP packet problem with kernel 2.6.2-1.87
TCP packet problem with kernel 2.6.2-1.87
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
athlon Linux
medium Severity medium
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Assigned To: Arjan van de Ven
Brian Brock
Depends On:
  Show dependency treegraph
Reported: 2004-02-19 02:10 EST by Andy Choi
Modified: 2007-11-30 17:10 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2004-05-03 15:09:42 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Andy Choi 2004-02-19 02:10:31 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040124

Description of problem:
I am having network issues with the kernel version above and several
below it.
I have an Athlon 1800+ with a K7S5a (sis735) and I am using the built
in NIC sis900.
ICMP and UDP traffic to my LAN is fine, but TCP packets aren't.
Subsequently every connection looks like the host is down.

Is this a known problem or is it unique?  It's happen with several of
the newer kernel development versions.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. have my system 
2. isntall FC1
3. install listed kernel version
4. TCP packets go heywire.

Actual Results:  TCP packets don't go out.

Expected Results:  A successful connection.

Additional info:

Nothing is shown when trying to initiate a TCP connection.
Comment 1 keith adamson 2004-02-21 16:31:50 EST
check thread;

either run command as root;

echo 0 > /proc/sys/net/ipv4/tcp_ecn

or add to file /etc/sysctl.conf and reboot;

# Disable ECN
net.ipv4.tcp_ecn = 0

Comment 2 Alan Cox 2004-05-03 15:09:42 EDT
Re-open if disabling ECN didnt fix this

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