lwIP - A Lightweight TCP/IP stack - Bugs: bug #28098, Nagle can prevent fast retransmit...
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bug #28098: Nagle can prevent fast retransmit from sending segment
Submitter: | Harry Bryson <hbryson> | ||
Submitted: | Thu 26 Nov 2009 11:37:54 AM UTC | ||
Category: | TCP | Severity: | 3 - Normal |
Item Group: | Faulty Behaviour | Status: | Fixed |
Privacy: | Public | Assigned to: | goldsimon |
Open/Closed: | Closed | Planned Release: | None |
lwIP version: | 1.3.1 |
Thu 26 Nov 2009 04:44:27 PM UTC, comment #2: |
Simon Goldschmidt <goldsimon> |
Thu 26 Nov 2009 03:07:20 PM UTC, comment #1: Hmm, this is indeed a problem that should be fixed for 1.3.2 as the nagle on pcb-level is quite new... |
Simon Goldschmidt <goldsimon> |
Thu 26 Nov 2009 11:37:54 AM UTC, original submission:
If fast retransmit (tcp_rexmit() from tcp_receive()) attempts to output a segment, the segment can be blocked by Nagle algorithm (if it matches the appropriate criteria). It should not be.
|
Harry Bryson <hbryson> |
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Follow 3 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2009-11-26 | goldsimon | Open/Closed | Open | Closed | |
Assigned to | None | goldsimon | |||
Status | None | Fixed |
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Corresponding source code
The fix was rather simple: tcp_do_output_nagle() must return TRUE if pcb->flags has TF_INFR set.
Fixed, thanks for reporting.