On Fri 2017-02-03 16:59:05, Alan Stern wrote: > On Fri, 3 Feb 2017, Pavel Machek wrote: > > > Hi! > > > > > > > Hmm. I moved keyboard between USB ports, and now 4.10-rc6 no longer > > > > > boots. v4.6 works ok. Let me try with keyboard unplugged... no, I > > > > > could not get it to work. I believe v4.9 and some v4.10-rc's worked, > > > > > but I'll have to double check. > > > > > > > > But all the kernel versions worked when the keyboard was plugged into > > > > its original USB port? > > > > > > Aha. So it looks difference is probably in "where is keyboard plugged > > > in" but in "reboot" vs. "cold boot". I did not do a cold boot in quite > > > a while :-(. > > > > > > Booting to grub, then hitting ctrl-alt-del is enough to make it work. Ouch. > > > > > > It happens with current Linus' tree. > > > > v4.10-rc6-feb3 : broken > > v4.9 : ok > > (v4.6 : ok) > > All I can suggest is git bisect. :-( But I agree that the problem is > unlikely to be in the USB layer. Yep. I'm hoping PCI people speak up.... adding printks there should be possibility, too. (And I guess I should remove you and usb people from the cc-list... in the next mails). (I verified it happens with 32bit configuration, too, FWIW). Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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