Bug 71425 - Networking stack crashes with simple test.
Networking stack crashes with simple test.
Status: CLOSED CURRENTRELEASE
Product: eCos
Classification: Retired
Component: Ethernet drivers (Show other bugs)
1.0
All Linux
medium Severity medium
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Assigned To: Gary Thomas
eCos bugs internal list
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Depends On:
Blocks:
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Reported: 2002-08-13 10:11 EDT by Gary Thomas
Modified: 2007-04-18 12:45 EDT (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2002-08-13 10:14:39 EDT
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Attachments (Terms of Use)
Simple network server test (2.06 KB, text/plain)
2002-08-13 10:12 EDT, Gary Thomas
no flags Details

  None (edit)
Description Gary Thomas 2002-08-13 10:11:43 EDT
Description of Problem:

Networking stack crashes with simple test.

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

CVS

How Reproducible:

100%

Steps to Reproduce:
1. Build attached test program
2. Connect to server, port 4000
3. Crashes immediately

Actual Results:


Expected Results:


Additional Information:
Comment 1 Gary Thomas 2002-08-13 10:12:44 EDT
Created attachment 70326 [details]
Simple network server test
Comment 2 Gary Thomas 2002-08-13 10:14:34 EDT
This failure happens because the logical network driver is trying to take
a packet (string of mbufs) and send it to the physical layer.  This is done
via a simple data structure of limited size.   This test program easily causes
that data structure to overrun, which is currently treated as an error.
Comment 3 Gary Thomas 2002-08-13 11:57:51 EDT
Made size of scatter-gather list configurable, with a slightly larger default.

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