Il giorno lun, 17/06/2019 alle 12.14 -0400, Alan Stern ha scritto: > On Mon, 17 Jun 2019, Andrea Vai wrote: > > > [...] > > > > That happened ALL times, so I never encountered a kernel that made > me > > say "git bisect good". > > Really? That strongly suggests that the 4.20 kernel also should > have > been marked bad. Did you really test it exactly the same way as all > the others? That is, did you go through the entire procedure > starting > with "git checkout v4.20", then running the build script, then the > reboot and "uname -a", and then the test script? well, honestly, no, because (sigh) I didn't know the "git checkout" command, sorry. I started with building 4.20 from the source downloaded with wget https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/snapshot/linux-4.20.tar.gz , then said "git bisect good v4.20". Is this different from "git checkout v4.20"? I hope it is, so we have found the mistake I have done. > Or did you just run a few tests with the Fedora 4.20.13 kernel and > assume that the results would be the same as those? no, I am sure I have never used the Fedora kernel(s) during the last bisect process. > > > [...] > > If _all_ the kernels you built and tested were bad then you > probably > did not start the bisection from the right commit. so, I hope this is true :-) > > > By the way, I noticed an error ("Unexpected system error") > reported > > sometimes by the Fedora ABRT tool, that states "this is not a > software > > bug, the kernel log indicates it is a hardware error", or > something > > similar (sorry, at the moment I don't know exactly where to find > it). > > Did you look in the kernel log? Yes I did, but I didn't took care about it very much. I will do it again, and report here, if as far as I understand you are saying that it could be useful. > > > [...] > > Compare the mainstream 4.20 kernel with the Fedora 4.20.13 kernel. > Also, maybe compare the mainstream 4.20.13 with Fedora's 4.20.13. Sorry, what do you mean here by "compare"? And what is the "mainstream"? If the mainstream is the one I got with wget, and if "compare" means "see if they behave differently", so I have already done it and they are both "good". Thank you, Andrea
