Error loading lcd

I tested in Uspace, Preempt RT and it loaded without an error, so that looks good so far. I wonder why it worked in RTAI?

JT

I just tested and lcd does load without any error, so I went on and configured my fmt_strings and I found another serious bug
My fmt_strings has actually 4 pages, and I can call them with

setp lcd.00.page_num 0
setp lcd.00.page_num 1
setp lcd.00.page_num 2
setp lcd.00.page_num 3

But if you call setp lcd.00.page_num 4

you get

So all crashed, no more reaction etc.

Do you want me to open a issue in github?

Norbert

newbynobi wrote: I just tested and lcd does load without any error, so I went on and configured my fmt_strings and I found another serious bug

Code:

loadrt lcd fmt_strings="Tool %2d ZO %7.3f\nX Pos = %8.3f\nY Pos = %8.3f\nZ Pos = %8.3f |Line = %5d\nLength = %5d\nProgress = %3.1f | \n Machine in ESTOP| \n Machine ON\n but not homed"

My fmt_strings has actually 4 pages, and I can call them with

setp lcd.00.page_num 0
setp lcd.00.page_num 1
setp lcd.00.page_num 2
setp lcd.00.page_num 3

But if you call setp lcd.00.page_num 4

you get

Code:

rtapi_app: caught signal 11 - dumping core

So all crashed, no more reaction etc.

Do you want me to open a issue in github?

Norbert

I would open an issue on github for sure. I probably have the hardware to test this (I should as a Mesa Dealer)

JT

newbynobi wrote: But if you call setp lcd.00.page_num 4
you get

Code:

rtapi_app: caught signal 11 - dumping core

I think lines 266 and 267 need to swap places:
github.com/LinuxCNC/linuxcnc/blob/master...omponents/lcd.c#L265
Or. possibly, an explicit range test on page_num before doing anything at all.

It notices the problem the first time through but then carries on regardless next thread cycle.