linux-kernel - Re: 4.14.9 doesn't boot (regression)

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Date:   Fri, 29 Dec 2017 22:02:30 +0100
From:   Toralf Förster <toralf.foerster@....de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Andy Lutomirski <luto@...capital.net>
Cc:     stable <stable@...r.kernel.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        the arch/x86 maintainers <x86@...nel.org>
Subject: Re: 4.14.9 doesn't boot (regression)

On 12/29/2017 09:12 PM, Linus Torvalds wrote:
> instead, and see if that makes a difference, that would narrow down
> the possible root cause of this problem.

not at this ThinkPad T440s (didn't test at the server with an i7-3930).

Boot stops just at:

	tsc: Refined TSC clocksource calibration: 2494.225 MHz
	clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x23f3ea95b09, max_idle_ns: 440795287034 ns

I changed the Makefile accordingly to your suggestion to:

~/devel/linux $ git diff
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 3e73bc255e4e..fb695558821b 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -128,7 +128,7 @@ else
         cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
 
         cflags-$(CONFIG_MCORE2) += \
-                $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
+                $(call cc-option,-mtune=generic)
        cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
                $(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
         cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)

~/devel/linux $ git describe
v4.15-rc5-114-g2758b3e3e630

This is a "Intel(R) Core(TM) i5-4300U CPU @ 1.90GHz" with gcc-6.4

.config attached

-- 
Toralf
PGP C4EACDDE 0076E94E

View attachment ".config" of type "text/plain" (105421 bytes)