lwIP - A Lightweight TCP/IP stack - Bugs: bug #42633, Write many frames at high speed to...
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bug #42633: Write many frames at high speed to a PC stops communication random.
Submitter: | Bart Houkes <mensfort> | ||
Submitted: | Fri 27 Jun 2014 08:45:48 AM UTC | ||
Category: | TCP | Severity: | 3 - Normal |
Item Group: | Faulty Behaviour | Status: | Invalid |
Privacy: | Public | Assigned to: | goldsimon |
Open/Closed: | Closed | Planned Release: | None |
lwIP version: | 1.4.1 |
Jump to the original submission
Tue 02 Sep 2014 06:32:45 PM UTC, comment #8: |
Simon Goldschmidt <goldsimon> |
Wed 02 Jul 2014 01:10:49 PM UTC, comment #7: It is not "rare" to have a 16-bit word (not "byte"), particularly on 16-bit DSPs, and many of them (since they are DSPs not general processors and so they are designed to handle DSP tasks not general software) don't support byte operations.
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Sergio R. Caprile <scaprile> |
Wed 02 Jul 2014 06:27:19 AM UTC, comment #6: Dear friends,
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Bart Houkes <mensfort> |
Mon 30 Jun 2014 01:14:25 PM UTC, comment #5: Bart,
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Sergio R. Caprile <scaprile> |
Sat 28 Jun 2014 03:58:17 PM UTC, comment #4: I'm not using SYS_LIGHTWEIGHT_PROT, but instead I use a semaphore in following functions:
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Bart Houkes <mensfort> |
Fri 27 Jun 2014 01:27:05 PM UTC, comment #3:
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Sylvain Rochet <gradator> |
Fri 27 Jun 2014 01:15:04 PM UTC, comment #2: Thanks for your comment in helping me!
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Bart Houkes <mensfort> |
Fri 27 Jun 2014 12:56:32 PM UTC, comment #1: As usual, it looks like a DMA bug in the low level driver you are using.
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Sylvain Rochet <gradator> |
Fri 27 Jun 2014 08:45:48 AM UTC, original submission:
I have an embedded device with LWIP that sends 400KByte text to a PC at high speed.
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Bart Houkes <mensfort> |
Depends on the following items: None found
Items that depend on this one: None found
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Follow 7 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2014-09-02 | goldsimon | Status | Need Info | Invalid | |
Assigned to | None | goldsimon | |||
Open/Closed | Open | Closed | |||
2014-07-02 | mensfort | Carbon-Copy | - | Added mensfort | |
2014-06-27 | gradator | Status | None | Need Info | |
2014-06-27 | mensfort | Attached File | - | Added evidence.png, #31626 | |
Carbon-Copy | - | Added -email is unavailable- |
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Corresponding source code
I take it this one is invalid (i.e. no lwIP bug) -> closed
As a side remark: I don't see how this can be a wrong checksum as the packet capture (a picture??? WTF???) clearly shows lwIP is not sending 2 frames. But I leave that analysis to the OP...