Wow, what an awesome book, thank you! I didn't know that compiling the kernel was so easy and fun! But I ran into a problem, I found one good and one bad point, started bisecting it, ran through a couple of steps and stumbled upon a commit that removes a bunch of stuff. This is the commit: commit 34873949885ad66f9bc6ad6baff78aed4846c092 Author: Johan Hovold <johan@xxxxxxxxxxxxxxxxxxxx> Date: Wed Jul 13 09:34:00 2016 -0500 greybus: es2: fix arpc return value ARPC should return 0 on success, but instead was returning the number of jiffies left until the timeout. This caused cport_reset() to report an error and an incorrect error message to be printed when disabling a connection. Reported-by: Alex Elder <elder@xxxxxxxxxx> Signed-off-by: Johan Hovold <johan@xxxxxxxxxxxxxxxxxxxx> Tested-by: Alex Elder <elder@xxxxxxxxxx> Signed-off-by: Alex Elder <elder@xxxxxxxxxx> My git shows the remote as git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Can you give me any tips on how to proceed next? I can't build from here because the current working directory has no Makefile. On Thu, Jan 26, 2017 at 12:30 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Thu, Jan 26, 2017 at 11:24:23AM +0300, Igor Zinovev wrote: >> Yes, I did unplug and plug it back in once, it didn't help. Sure, I'd >> love to do a bisect, only I haven't compiled a kernel from source, is >> there a good howto anywhere I could follow? > > I wrote a whole book about this topic, that's free online: > http://www.kroah.com/lkn/ > > But if you haven't done this before, it might take a while to get up to > speed. Can you use a pre-built kernel from your distro to help narrow > in on the specific release that caused the issue? > > thanks, > > greg k-h -- С уважением, Игорь Зиновьев. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html