Context
Log from (failed) platform test
After some fun I got the serial console working and re-ran the platform test.
After a bit of reading the serial console, I realized that rmmod dwc3 was causing
more problems than it solved, in particularly reliable hard lockup on one of the CPUs.
My revised test script is
set -x
echo platform > /sys/power/pm_test
echo reboot > /sys/power/disk
sleep 2
rmmod mt76x2u
sleep 2
echo disk > /sys/power/state
sleep 2
modprobe mt76x2u
The current problem seems to be pcie not resuming properly.
[ 65.306842] usbcore: deregistering interface driver mt76x2u
[ 65.343606] wlx000a5205eb2d: deauthenticating from 20:05:b7:00:2d:89 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 67.995239] PM: hibernation: hibernation entry
[ 68.048103] Filesystems sync: 0.022 seconds
[ 68.049005] Freezing user space processes
[ 68.051075] Freezing user space processes completed (elapsed 0.001 seconds)
[ 68.051760] OOM killer disabled.
[ 68.052597] PM: hibernation: Basic memory bitmaps created
[ 68.053108] PM: hibernation: Preallocating image memory
[ 69.719040] PM: hibernation: Allocated 366708 pages for snapshot
[ 69.719650] PM: hibernation: Allocated 1466832 kbytes in 1.66 seconds (883.63 MB/s)
[ 69.720370] Freezing remaining freezable tasks
[ 69.723558] Freezing remaining freezable tasks completed (elapsed 0.002 seconds)
[ 69.728002] rk_gmac-dwmac fe1b0000.ethernet end0: Link is Down
[ 69.992324] rockchip-dw-pcie a40c00000.pcie: Failed to receive PME_TO_Ack
[ 69.993405] PM: hibernation: debug: Waiting for 5 seconds.
[ 76.059484] rockchip-dw-pcie a40c00000.pcie: Phy link never came up
[ 76.060043] rockchip-dw-pcie a40c00000.pcie: fail to resume
[ 76.060546] rockchip-dw-pcie a40c00000.pcie: PM: dpm_run_callback(): genpd_restore_noirq returns -110
[ 76.061363] rockchip-dw-pcie a40c00000.pcie: PM: failed to restore noirq: error -110