> From: Steven Rostedt [mailto:rost...@goodmis.org] > Sent: Thursday, April 03, 2014 2:14 PM > To: Linus Torvalds; LKML > Cc: Ingo Molnar; H. Peter Anvin; Thomas Gleixner; Li, Aubrey; Matthew Garrett > Subject: [BUG] x86: reboot doesn't reboot > > I noticed that one of my test boxes no longer does a reboot with the latest > kernel. It goes down and shows: > > [ 51.589896] reboot: Restarting system > [ 51.593567] reboot: machine restart > > > And the system sounds like it turns off (the fans stop), but then I just sit > there > and wait, and wait and wait. The system never starts up again. > > I did a bisect and it landed on: a4f1987e4c54 "x86, reboot: Add EFI and > CF9 reboot methods into the default list" which looks like a very likely > suspect. I > removed that and fb3bd7b19b2b, as the second commit was just a fix up of the > first, recompiled, installed and rebooted to that kernel. I tried to reboot > again > and sure enough after posting the "machine restart" I started getting those > "Press any key to continue." > messages again. That's a good sign. > > Linus mentioned to me to use "reboot=pci" on the kernel command line, but no > dice. That doesn't seem to make a difference.
May I know if "reboot=t" make any difference on your system with the change? Thanks, -Aubrey -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/