On Wed, Mar 27, 2019 at 03:29:21PM +0100, Fabian Pietsch wrote: > Package: src:linux > Version: 4.19.28-2 > Followup-For: Bug #925334 > > Dear Maintainer, > > the bug is still present in the current version. It took a freshly > booted, idle system 3304 seconds for the bug to occur, though, > so this time rather an hour (than 10-30min as stated before). > > After the bug has happened, I get the following information from sysfs: > > | root@rpi3:/sys/bus/platform/drivers/vc4_v3d# for I in enabled status active_time suspended_time; do echo -n "$I=$(cat 3fc00000.v3d/power/runtime_$I) "; done; echo > | enabled=enabled status=error active_time=16800 suspended_time=55464216 > > And again: > > | enabled=enabled status=error active_time=16800 suspended_time=55479160 > > So vc4_v3d which reported the error seems to be in status=error > and counts as suspended. Manual attempts to get it to resume again, > now that more cma is free again, failed, but there are probably ways > I don't know about. > > "echo on > .../power/control" changed runtime_enabled=forbidden > (and echo auto > control changed it back to runtime_enabled=enabled), > but runtime_status remained at "error". > > Regards, Fabian > > > -- System Information: > Debian Release: buster/sid > APT prefers testing > APT policy: (500, 'testing') > Architecture: arm64 (aarch64) > > Kernel: Linux 4.19.0-4-arm64 (SMP w/4 CPU cores) > Kernel taint flags: TAINT_CRAP > Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8) > Shell: /bin/sh linked to /usr/bin/dash > Init: systemd (via /run/systemd/system) > LSM: AppArmor: enabled Hi, As discussed on IRC, thanks for your bug report and for the refresh. Could you test, two stuffs for me ? : 1. The VC4 driver seems to use runtime pm operations, could you try to disable runtime suspend completly (there are kernel parameters for this if I remember correctly) ? 2. Your kernel cmdline are... weird, could you try with minimalistic kernel cmdline ? Only keep console= for logging to uart and/or to your tty0 and keep your rootfs. Thanks, Romain
Attachment:
signature.asc
Description: PGP signature