Serial losing characters
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux-ti-omap4 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Bug Description
Problem:
from time to time my panda's serial lose some characters,
How to reproduce it:
to reproduce the problem try to cut&paste a long line of text on a console opened via the serial port.
Some more info:
Been able to reproduce it on every panda board i have (es, rev a/b, etcetc) but ONLY on armel:
P armhf installation with P kernel (3.2.0-1414.19) has no problem at all.
P armel installation (initial O image dist-upgraded to P) with P kernel (3.2.0-1414.19) can reproduce the problem 100%.
E.g, if i copy&paste the following line of text "The quick brown fox jumps over the lazy dog":
here is the result on P armel:
Ubuntu 12.04 LTS localhost ttyO2
localhost login: emg
while on armhf:
Ubuntu 12.04 LTS panda ttyO2
panda login: The quick brown fox jumps over the lazy dog
A vanilla O/omap4 armel installation exposes this problem too.
I personally think it's not a kernel (P armel and armhf kernels have the same exact config) nor an arch specific issue (armel vs amhf), but i can't really think of any other culprits.
| Paolo Pisati (p-pisati) wrote | #1 |
| Paolo Pisati (p-pisati) wrote | #2 |
| Changed in linux-ti-omap4 (Ubuntu): | |
| status: | New → Invalid |
the simplest method to reproduce it:
get an O omap4 preinstalled image
http://
install it on your sd card (follow the installation instruction), then reboot the board and let it reach the login prompt:
Ubuntu 12.04 LTS panda ttyO2
localhost login:
at this point, try cut&pasting a long line of text (>= 10chars will do it), if it doesn't get through intact, you are affected.