No overclocking (I always get the CPUs which will not overclock well. Same with this one)Can i confirm you are not overclocking?
Official 27W plugWhat power supply are you using?
The official fan cooler for Pi5Do you have any cooling?
YesAre you 100% sure that 6.12 kernel never has this issue (compared to it just being intermittent and "being lucky so far").
Latest test runs:
moved the pi next to the window for cooler air.
used a ugreen power bank with 140W. Shall deliver 60W on the used USB C port.
over_voltage=6
btop and small script (at end of this post) for monitoring.
result: Kernel 6.18 has problem with power/temperature handling.
6.18: starts with 1.5GHz and 1.00V. Keeps 1.00V when going to full 2.4GHz. Keeps under load all cores at 100%. When reaching temperature of 70C there is a high chance that the error occurs. Temps can get much higher (76C) when errors show up.
snippet from log file $TIMESTAMP; ${TEMP}; ${FREQ}; ${VOLT}; ${THROT}" :
Code:
2026-01-06 20:52:02; 32.9; 1500016128; 1.0000V; 0x02026-01-06 20:52:12; 31.8; 1500012800; 1.0000V; 0x02026-01-06 20:52:22; 32.9; 1500019456; 1.0000V; 0x02026-01-06 20:52:32; 32.9; 1500016128; 1.0000V; 0x02026-01-06 20:52:42; 33.4; 1500016128; 1.0000V; 0x02026-01-06 20:52:52; 32.3; 2400023808; 1.0000V; 0x02026-01-06 20:53:02; 34.5; 1700014464; 1.0000V; 0x02026-01-06 20:53:12; 35.1; 2400027136; 1.0000V; 0x02026-01-06 20:53:22; 51.6; 2400020480; 1.0000V; 0x02026-01-06 20:53:32; 53.2; 2400027136; 1.0000V; 0x02026-01-06 20:53:42; 56.0; 2400030464; 1.0000V; 0x02026-01-06 20:53:52; 45.0; 1500012800; 1.0000V; 0x02026-01-06 20:54:02; 44.4; 2400020480; 1.0000V; 0x0Code:
2026-01-07 01:02:40; 42.8; 1500012800; 0.7500V; 0x02026-01-07 01:02:50; 41.1; 1500016128; 0.7500V; 0x02026-01-07 01:03:22; 41.1; 1500012800; 0.7500V; 0x02026-01-07 01:03:32; 40.0; 1500022656; 0.7500V; 0x02026-01-07 01:03:42; 39.5; 1500016128; 0.7500V; 0x02026-01-07 01:03:52; 40.0; 1500012800; 0.7500V; 0x02026-01-07 01:04:02; 41.1; 1700017792; 0.9480V; 0x02026-01-07 01:04:12; 41.1; 2400033792; 1.0000V; 0x02026-01-07 01:04:23; 54.9; 2400033792; 1.0000V; 0x02026-01-07 01:04:33; 59.3; 2400017408; 1.0000V; 0x02026-01-07 01:10:44; 73.6; 2400027136; 1.0000V; 0x02026-01-07 01:10:54; 73.6; 2400027136; 1.0000V; 0x02026-01-07 01:11:04; 57.6; 1500019456; 0.7500V; 0x02026-01-07 01:11:14; 53.8; 1500016128; 0.7500V; 0x02026-01-07 01:11:24; 51.0; 1500019456; 0.7500V; 0x02026-01-07 01:11:34; 49.9; 1500022656; 0.7500V; 0x02026-01-07 01:11:44; 49.4; 1500012800; 0.7500V; 0x02026-01-07 01:11:54; 64.8; 2400020480; 1.0000V; 0x02026-01-07 01:12:04; 67.0; 2400020480; 1.0000V; 0x02026-01-07 01:12:14; 67.5; 2400030464; 1.0000V; 0x0Monitoring script:
Code:
#!/bin/bashLOGFILE="./temperature_log.txt"INTERVAL=10 # Log every 10 secondsecho "Logging CPU temperature to $LOGFILE"while true; doTIMESTAMP=$(date +"%Y-%m-%d %H:%M:%S")TTT=$(vcgencmd measure_temp | egrep -o '[0-9]*\.[0-9]*')FREQ=$(vcgencmd measure_clock arm | egrep -o '([0-9]+$)')VOLT=$(vcgencmd measure_volts | egrep -o '([0-9.]+V)')THROT=$(vcgencmd get_throttled | egrep -o '([0-9a-fA-Fx]+)$')echo "$TIMESTAMP; ${TTT}; ${FREQ}; ${VOLT}; ${THROT}" >> "$LOGFILE"echo "$TIMESTAMP; ${TTT}; ${FREQ}; ${VOLT}; ${THROT}" sleep "$INTERVAL"doneStatistics: Posted by crumble — Wed Jan 07, 2026 1:40 am