Hi Aaro, On 10/12/2021 12:13, Aaro Koskinen wrote: > Hi, > > On Wed, Dec 08, 2021 at 11:34:53PM +0100, Merlijn B.W. Wajer wrote: >> What I have seen is that if off mode is enabled from userspace >> (debugfs), it does not cause a problem (or I don't hit the problem at >> least). That said, my off mode tests are pretty minimal with >> init=/bin/sh, and I haven't gotten a fully booted (with lots of modules >> loaded, gui and daemons) system to enter off mode yet. > > I also started seeing crashes with fb2c599f0566 on N900. It's been several > months since I last tested, but I remember I was able to trigger the > crashes reliably with MMC access from the minimal shell enviroment. > I see the MMC is also visible in your crash logs. My test case was > something like "sleep 30 ; blkid ; sleep 30". Thanks for this info -- I can confirm, I see the same when I do this: 1. boot to init=/bin/bash 2. run: > modprobe panel-sony-acx565akm > > mount -t proc none /proc > mount -t sysfs none /sys > mount -t debugfs none /sys/kernel/debug > mount -o rw,remount / > > echo 1 > /sys/kernel/debug/pm_debug/enable_off_mode > echo 0 > /sys/class/backlight/acx565akm/brightness 3. run: > sleep 30 ; blkid So we have a pretty reproducible test case here I think. Regards, Merlijn
