From: Alexander Tsoy <alexander@tsoy.me>
To: Linus Torvalds <torvalds@linux-foundation.org>,
Dave Hansen <dave.hansen@intel.com>
Cc: Greg KH <greg@kroah.com>, Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>, Borislav Petkov <bp@suse.de>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Borislav Petkov <bp@alien8.de>, Borislav Petkov <bpetkov@suse.de>,
Brian Gerst <brgerst@gmail.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
David Laight <David.Laight@aculab.com>,
Denys Vlasenko <dvlasenk@redhat.com>,
Eduardo Valentin <eduval@amazon.com>,
Greg KH <gregkh@linuxfoundation.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Juergen Gross <jgross@suse.com>,
Peter Zijlstra <peterz@infradead.org>,
Rik van Riel <riel@redhat.com>, Will Deacon <will.deacon@arm.com>,
"Liguori, Anthony" <aliguori@amazon.com>,
Daniel Gruss <daniel.gruss@iaik.tugraz.at>,
Hugh Dickins <hughd@google.com>, Kees Cook <keescook@google.com>,
Kernel Mailing List <linux-kernel@vger.kernel.org>,
stable <stable@vger.kernel.org>
Subject: Re: 4.14.9 with CONFIG_MCORE2 fails to boot
Date: Fri, 29 Dec 2017 23:22:16 +0300 [thread overview]
Message-ID: <1514578936.28262.11.camel@tsoy.me> (raw)
In-Reply-To: <CA+55aFwgNQt_7C20XjgKt3MNnrix3wJcVou5GGNX3yRvMMtP4g@mail.gmail.com>
В Пт, 29/12/2017 в 11:31 -0800, Linus Torvalds пишет:
> On Fri, Dec 29, 2017 at 9:32 AM, Dave Hansen <dave.hansen@intel.com>
>
--------------->%---------------
> >
> > MCORE2 seems to get one oddball compiler flag (-march=core2):
> >
> > > cflags-$(CONFIG_MCORE2) += \
> > > $(call cc-option,-march=core2,$(call cc-option,-
> > > mtune=generic))
> >
> > It would be interesting to see if replacing the above "$(call"
> > with:
> >
> > $(call cc-option,-mtune=generic)
> >
> > makes the problem go away the same way as changing the .config
> > option.
>
> Definitely.
>
--------------->%---------------
> But double-checking that "-march=core2" case is definitely worth
> looking into. Especially since there are clear indications that it's
> gcc version-dependent anyway. Alexander?
>
Yes, the change suggested by Dave makes the problem go away.
next prev parent reply other threads:[~2017-12-29 20:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-28 9:33 Alexander Tsoy
2017-12-29 9:17 ` Greg KH
2017-12-29 14:31 ` Alexander Tsoy
2017-12-29 14:41 ` Alexander Tsoy
2017-12-29 16:11 ` Thomas Gleixner
2017-12-29 16:59 ` Alexander Tsoy
2017-12-29 17:32 ` Dave Hansen
2017-12-29 18:46 ` Alexander Tsoy
2017-12-30 1:04 ` Dave Hansen
2017-12-30 1:32 ` Alexander Tsoy
2017-12-29 19:31 ` Linus Torvalds
2017-12-29 20:22 ` Alexander Tsoy [this message]
2017-12-29 20:34 ` Linus Torvalds
2017-12-29 21:50 ` Alexander Tsoy
2017-12-29 22:09 ` Linus Torvalds
2017-12-29 23:15 ` Alexander Tsoy
2017-12-29 23:56 ` Linus Torvalds
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