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From: Thomas Gleixner <tglx@linutronix.de>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: "H.J. Lu" <hjl.tools@gmail.com>,
	Mike Lothian <mike@fireburn.co.uk>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	bhe@redhat.com, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	lijiang@redhat.com,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Andy Lutomirski <luto@kernel.org>, Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	the arch/x86 maintainers <x86@kernel.org>
Subject: Re: [PATCH v3 1/2] x86/mm: Identify the end of the kernel area to be reserved
Date: Tue, 23 Jul 2019 15:31:32 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.21.1907231519430.1659@nanos.tec.linutronix.de> (raw)
In-Reply-To: <20190723130513.GA25290@kroah.com>

On Tue, 23 Jul 2019, Greg KH wrote:
> On Mon, Jul 15, 2019 at 01:16:48PM -0700, H.J. Lu wrote:
> > >
> > 
> > Since building a workable kernel for different kernel configurations isn't a
> > requirement for gold, I don't recommend gold for kernel.
> 
> Um, it worked before this commit, and now it doesn't.  "Some" companies
> are using gold for linking the kernel today...

gold is known to fail the kernel build. x32 vdso linking is not working
since years and just because it 'works' for some configurations and breaks
for no valid reasons even with those configurations is just not good
enough.

As there is obviously no priority for fixing gold to work proper with the
kernel, I'm not at all interested in these 'regression' reports and in odd
'fixes' which just end up reverting or modifying perfectly valid changes
without understanding the root cause, i.e. the most horrible engineering
principle: duct-taping.

TBH, I'm tired of it. We fail the build for clang if it does not support
asm gotos and the clang people are actively working on fixing it and we're
helping them as much as we can. The companies who used clang nevertheless
have been on their own for years and if someone wants to use gold then
nobody is preventing them from doing so. They can keep their duct-tape in
their own trees.

See this thread for further discussion:

 https://lkml.kernel.org/r/alpine.DEB.2.21.1907161434260.1767@nanos.tec.linutronix.de

Thanks,

	tglx

  reply	other threads:[~2019-07-23 13:31 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-19 18:40 [PATCH v3 0/2] x86: SME: Kexec/kdump memory loading fix Lendacky, Thomas
2019-06-19 18:40 ` [PATCH v3 1/2] x86/mm: Identify the end of the kernel area to be reserved Lendacky, Thomas
2019-06-20  9:58   ` [tip:x86/kdump] " tip-bot for Thomas Lendacky
2019-07-13 14:59   ` [PATCH v3 1/2] " Mike Lothian
2019-07-14 10:16     ` Thomas Gleixner
2019-07-14 10:27       ` Mike Lothian
2019-07-15  8:12         ` Thomas Gleixner
     [not found]           ` <CAHbf0-F9yUDJ=DKug+MZqsjW+zPgwWaLUC40BLOsr5+t4kYOLQ@mail.gmail.com>
2019-07-15  9:25             ` Thomas Gleixner
2019-07-15 10:35               ` Thomas Gleixner
2019-07-15 20:16                 ` H.J. Lu
2019-07-23 13:05                   ` Greg KH
2019-07-23 13:31                     ` Thomas Gleixner [this message]
2019-07-23 13:44                       ` Greg KH
2019-07-24 15:34                         ` Greg KH
2019-07-24 15:49                           ` Thomas Gleixner
2019-07-24 15:57                             ` Greg KH
2019-07-24 16:03                               ` Thomas Gleixner
2019-07-24 16:16                                 ` Greg KH
2019-07-24 20:02                                   ` Thomas Gleixner
2019-07-24 20:20                                     ` Thomas Gleixner
2019-07-25  6:24                                       ` Greg KH
2019-08-14 11:09                                         ` Mike Lothian
2019-08-19 12:53                                           ` Mike Lothian
2019-08-19 13:08                                             ` Thomas Gleixner
2019-08-19 13:21                                               ` Mike Lothian
2019-08-19 13:31                                                 ` Thomas Gleixner
2019-08-20 12:46                                                   ` Mike Lothian
2019-07-24 16:22                               ` Peter Zijlstra
2019-07-24 16:01                             ` Thomas Gleixner
2019-07-23 13:43                     ` Greg KH
2019-06-19 18:40 ` [PATCH v3 2/2] x86/mm: Create a workarea in the kernel for SME early encryption Lendacky, Thomas
2019-06-20  9:58   ` [tip:x86/kdump] " tip-bot for Thomas Lendacky

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