lwIP - A Lightweight TCP/IP stack - Bugs: bug #26349, Nagle algorithm doesn't send...
You are not allowed to post comments on this tracker with your current authentication level.
bug #26349: Nagle algorithm doesn't send although segment is full
Submitter: | Simon Goldschmidt <goldsimon> | ||
Submitted: | Sun 26 Apr 2009 12:06:59 PM 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: | CVS Head |
Sun 03 May 2009 02:18:14 PM UTC, comment #4: |
Simon Goldschmidt <goldsimon> |
Sun 03 May 2009 12:22:29 PM UTC, comment #3: I discovered there is just the test missing if unsent->len >= pcb->mss (which is the case if we enqueued just MSS of data, nothing more, so unsent->next is still NULL).
|
Simon Goldschmidt <goldsimon> |
Mon 27 Apr 2009 06:05:10 AM UTC, comment #2: Well, at least that's something to start with (although I'd really like to know where Comer got that from).
|
Simon Goldschmidt <goldsimon> |
Sun 26 Apr 2009 11:30:52 PM UTC, comment #1: I had a look at what my TCP/IP book says (Internetworking with TCP/IP, vol 1 by Comer).
|
David Empson <dempson> |
Sun 26 Apr 2009 12:06:59 PM UTC, original submission:
While debugging the fix for bug #24212 (Deadlocked tcp_retransmit due to exceeded pcb->cwnd), I discovered that the nagle algorithm doesn't send data (because unsent->next is null) although the unsent segment is as big as it can get (i.e. 1460 bytes).
|
Simon Goldschmidt <goldsimon> |
No files currently attached
Depends on the following items: None found
Items that depend on this one: None found
There are 0 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.
Follow 3 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2009-05-03 | goldsimon | Status | None | Fixed | |
Assigned to | None | goldsimon | |||
Open/Closed | Open | Closed |
Powered by Savane 3.13-02a9.
Corresponding source code
Fixed by checking unsent->len >= pcb->mss in define tcp_do_output_nagle()