I've hit this a few times and was never ever to find anything useful. However, this time I think I know what triggered the load. I manually installed d-feet with apt, and within a couple minutes removed it with apt. My laptop load spiked and stayed that way until I killed the process over 2 hours later. While debugging it, the only thing that stood out was this log message:
Sep 7 15:02:22 mucho gnome-software[5113]: failed to rescan: Failed to parse /usr/share/applications/d-feet.desktop file: cannot process file of type application/x-desktop
I heard the fan spin up less than a minute after I removed d-feet. Maybe something was queued to scan that desktop file and it was gone by the time it was ready to scan it? I briefly used strace on the process and it just looked like a bunch of waits, nothing that looked interesting. I left it in this state for over 2 hours to see if it would ever recover, but it didn't and I ultimately killed the gnome-software process.
I've hit this a few times and was never ever to find anything useful. However, this time I think I know what triggered the load. I manually installed d-feet with apt, and within a couple minutes removed it with apt. My laptop load spiked and stayed that way until I killed the process over 2 hours later. While debugging it, the only thing that stood out was this log message:
Sep 7 15:02:22 mucho gnome-software[ 5113]: failed to rescan: Failed to parse /usr/share/ applications/ d-feet. desktop file: cannot process file of type application/ x-desktop
I heard the fan spin up less than a minute after I removed d-feet. Maybe something was queued to scan that desktop file and it was gone by the time it was ready to scan it? I briefly used strace on the process and it just looked like a bunch of waits, nothing that looked interesting. I left it in this state for over 2 hours to see if it would ever recover, but it didn't and I ultimately killed the gnome-software process.