From: Steven Rostedt <rostedt@goodmis.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>,
"Li, Aubrey" <aubrey.li@linux.intel.com>,
Ingo Molnar <mingo@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [BUG] x86: reboot doesn't reboot
Date: Fri, 4 Apr 2014 12:01:06 -0400 [thread overview]
Message-ID: <20140404120106.63db9b0c@gandalf.local.home> (raw)
In-Reply-To: <533ED247.9040602@zytor.com>
On Fri, 04 Apr 2014 08:39:51 -0700
"H. Peter Anvin" <hpa@zytor.com> wrote:
> There are several platforms where the default boot method invokes an SMM
> handler which blithly assumes that the hardware is in whatever state
> Windows leaves it in, and hangs otherwise. This seems to include nearly
> all Dell systems. So it isn't really quite that simple...
Just an update. I pulled out of my closet an old Pentium III and got it
to finally boot the new kernel. It reboots fine, but as I left the
printk patch in, it didn't get to the cf9 usage. I take it, it can
detect the level. And perhaps the issues is only with x86_64?
I have no problem with sticking in reboot=b in my development box. I
just wanted people to know that I had issues.
Maybe keep the current way and on reboot, have a pr_info() stating, if
your system doesn't reboot try "reboot=b" on the kernel command line?
-- Steve
next prev parent reply other threads:[~2014-04-04 16:01 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-03 6:14 [BUG] x86: reboot doesn't reboot Steven Rostedt
[not found] ` <070BEF4AC20468458C22969097656CD91163106C@shsmsx102.ccr.corp.intel.com>
2014-04-03 6:30 ` FW: " Li, Aubrey
2014-04-03 12:09 ` Steven Rostedt
2014-04-03 13:41 ` Steven Rostedt
2014-04-03 13:45 ` Matthew Garrett
2014-04-03 14:10 ` H. Peter Anvin
2014-04-03 14:47 ` Steven Rostedt
2014-04-03 14:50 ` Matthew Garrett
2014-04-03 15:14 ` Steven Rostedt
2014-04-03 15:17 ` Steven Rostedt
2014-04-03 15:20 ` H. Peter Anvin
2014-04-03 15:21 ` H. Peter Anvin
2014-04-03 15:39 ` Steven Rostedt
2014-04-03 15:58 ` H. Peter Anvin
2014-04-03 16:13 ` Steven Rostedt
2014-04-03 23:23 ` Li, Aubrey
2014-04-03 23:40 ` Steven Rostedt
2014-04-03 23:52 ` Li, Aubrey
2014-04-04 0:12 ` H. Peter Anvin
2014-04-04 1:27 ` Li, Aubrey
2014-04-04 1:40 ` H. Peter Anvin
2014-04-04 6:13 ` Ingo Molnar
2014-04-04 12:34 ` H. Peter Anvin
2014-04-04 15:12 ` Matthew Garrett
2014-04-04 15:13 ` H. Peter Anvin
2014-04-04 15:36 ` Matthew Garrett
2014-04-04 15:39 ` H. Peter Anvin
2014-04-04 15:46 ` Matthew Garrett
2014-04-04 16:01 ` Steven Rostedt [this message]
2014-04-04 17:34 ` Ingo Molnar
2014-04-04 17:37 ` H. Peter Anvin
2014-04-04 17:44 ` Ingo Molnar
2014-04-04 18:00 ` Matthew Garrett
2014-04-04 15:38 ` Linus Torvalds
2014-04-04 15:45 ` Matthew Garrett
2014-04-04 15:54 ` Tobias Klausmann
2014-04-04 16:09 ` Linus Torvalds
2014-04-04 16:21 ` Matthew Garrett
2014-04-04 18:19 ` Linus Torvalds
2014-04-28 6:02 ` Yuhong Bao
2014-04-04 16:31 ` H. Peter Anvin
[not found] ` <cbb97256-9323-4d67-8523-061972e07ecc@email.android.com>
2014-04-04 17:01 ` H. Peter Anvin
2014-04-04 17:40 ` Ingo Molnar
2014-04-04 18:26 ` Linus Torvalds
2014-04-04 2:16 ` Steven Rostedt
2014-04-04 2:43 ` Li, Aubrey
2014-04-03 15:35 ` Steven Rostedt
2014-04-04 6:41 ` [PATCH] x86: Try the BIOS reboot method before the PCI reboot method Ingo Molnar
2014-04-04 7:53 ` [PATCH] x86: Don't do the BIOS and PCI 0xCF9 reboot methods by default Ingo Molnar
2014-04-04 7:54 ` [tip:x86/reboot] [PATCH] x86: Try the BIOS reboot method before the PCI reboot method tip-bot for Ingo Molnar
2014-04-04 8:00 ` Ingo Molnar
2014-04-04 12:37 ` H. Peter Anvin
2014-04-04 13:30 ` Steven Rostedt
2014-04-04 13:38 ` Li, Aubrey
2014-04-04 15:09 ` Adam Williamson
2014-04-04 15:13 ` Matthew Garrett
2014-04-04 15:28 ` H. Peter Anvin
2014-04-06 17:40 ` One Thousand Gnomes
2014-04-06 18:40 ` H. Peter Anvin
2014-04-07 8:00 ` Li, Aubrey
2014-04-07 21:03 ` H. Peter Anvin
2014-04-07 22:04 ` Adam Williamson
2014-04-07 22:09 ` H. Peter Anvin
2014-04-07 23:12 ` Adam Williamson
2014-04-09 20:50 ` H. Peter Anvin
2014-04-04 17:48 ` Ingo Molnar
2014-04-04 19:12 ` Linus Torvalds
2014-04-07 15:42 ` Steven Rostedt
2014-04-14 11:22 ` [tip:x86/urgent] " tip-bot for Ingo Molnar
2014-04-14 11:27 ` Ingo Molnar
2014-04-14 16:04 ` Steven Rostedt
2014-04-16 7:40 ` [tip:x86/urgent] x86: Remove the PCI reboot method from the default chain tip-bot for Ingo Molnar
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