On Sun, Mar 12, 2023 at 6:15 PM Armin Wolf <W_Armin@xxxxxx> wrote: > > Am 25.02.23 um 12:51 schrieb Armin Wolf: > > > On my Acer Travelmate 4002WLMi, the system locks up upon > > suspend/shutdown. After a lot of research, it turned out > > that the sbs module was the culprit. The driver would not > > correctly mask out the value used to select a battery using > > the "Smart Battery Selector" (subset of the "Smart Battery Manager"). > > This accidentally caused a invalid power source to be selected, > > which was automatically corrected by the selector. Upon > > notifing the host about the corrected power source, some batteries > > would be selected for re-reading, causing a endless loop. > > This would lead to some workqueues filling up, which caused the > > lockup upon suspend/shutdown. > > > > The first three patches fix a stacktrace on module removal caused > > by some locking issues. The last patch finally fixes the > > suspend/shutdown issues. > > > > As a side note: This was the first machine on which i installed Linux, > > to finally fixing this took ~5 years of tinkering. > > What is the status of this patchset? Should i use a SRCU notifier chain > for the query notifiers? I would really like to see this getting fixed, > as it prevents me from using linux on this machine. I'm not entirely convinced about the query notifiers idea TBH.
