avrdude goes 100% cpu after unsuccessful uploading and closing arduino IDE

[adamitsch]

When I close Arduino IDE after unsuccessful uploading (when it is trying to connect via serial port), avrdude process consumes 100% cpu.

[facchinm]

Hi @adamitsch ,
which OS / IDE version are you running? Starting from 1.8.0 (if I remember correctly) all "zombies" upload tools get killed after two minutes of inactivity. The 100% cpu behaviour is only due to avrdude getting stuck in an infinite loop.
This should be probably tracked under #5928

[hoonto]

I saw this problem this morning. Last night I had an unsuccessful upload to board due to serial port permissions. Hope this information helps!

Arduino IDE 1.8.6

After unsuccessful upload I fixed the serial port permissions with

sudo usermod -a -G dialout mmullens
sudo chmod a+rw /dev/ttyUSB0
sudo chmod a+rw /dev/ttyACM0

My laptop runs a lot of stuff, so didn't notice the activity until this morning at which point I saw 100% cpu utilization:

top - 10:01:11 up 3 days, 21:14,  1 user,  load average: 2.44, 2.41, 2.27
Tasks: 372 total,   4 running, 302 sleeping,   0 stopped,   1 zombie
%Cpu(s):  9.3 us, 18.4 sy,  0.0 ni, 72.3 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem : 65920704 total, 47128480 free,  9402004 used,  9390220 buff/cache
KiB Swap:        0 total,        0 free,        0 used. 55327280 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                                                                          
30554 mmullens  20   0   16972   5664   2220 R 100.0  0.0 779:09.58 avrdude                                                                                                                                          
30856 mmullens  20   0   16972   5696   2244 R 100.0  0.0 777:14.57 avrdude

$ cat /etc/lsb-release
DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=19
DISTRIB_CODENAME=tara
DISTRIB_DESCRIPTION="Linux Mint 19 Tara"

[gibeautc]

seeing the same issue here. Arduino IDE is not running anymore (hasnt been in a day or two)

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
14307 chadg 20 0 16604 680 680 R 100.0 0.0 10148:43 avrdude

[EinarJohansson]

Still having this issue on Mac osx High Sierra.
Arduino version: 1.8.13

[All3xJ]

still having this issue too, under ArchLinux

[facchinm]

Hi @All3xJ ,
probably this code path is not being executed on close facchinm@bc22fd3#diff-599f5cbf0662d5498451c870eeca912dfda5a7afd8907d66e62be228f1b11612R965 .
How are you closing the IDE?