On Fri, 2017-03-10 at 08:23 +0100, Ingo Molnar wrote: > * Bart Van Assche <bart.vanass...@sandisk.com> wrote: > > Anyway, the result of a new bisect I ran is as follows: > > * good: 631ddaba5905 ("Merge branches 'pm-sleep' and 'powercap'"). > > * good: 80f1b3dea9d4 ("Merge branch 'device-properties'"). > > * bad: a67485d4bf97 ("Merge tag 'acpi-4.10-rc1' of > > git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm"). > > > > Does this make sense to you? > > The bisection information is really useful, if the failure mode is > deterministic. > > It would be nice to have more bisection points, the above range is about > 5,000 > commits.
Hello Ingo, Sorry that I had mentioned such a big range of commits. The bisect process actually pointed out a single commit as the first bad commit. I had not mentioned that information because I did not trust it. Anyway, when I tried to reproduce the hang this morning with the commit marked as "bad" the hang did not occur. I think this means the hang is reproducible most of the time but not always. That probably explains why none of my two bisect attempts so far pointed at a commit that introduced the hang. I'll try to find a way to reproduce the hang reliably. Bart.