From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: Masahiro Yamada <yamada.masahiro@socionext.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
linux-arch <linux-arch@vger.kernel.org>,
linux-kernel@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
rmk+kernel@arm.linux.org.uk, Will Deacon <will@kernel.org>,
Stefan Wahren <wahrenst@gmx.net>
Subject: Re: [PATCH] compiler: enable CONFIG_OPTIMIZE_INLINING forcibly
Date: Fri, 27 Sep 2019 12:58:39 +0200 [thread overview]
Message-ID: <dc80461e8b9d2e715976ed0b02f41b84922d06f1.camel@suse.de> (raw)
In-Reply-To: <20190830034304.24259-1-yamada.masahiro@socionext.com>
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On Fri, 2019-08-30 at 12:43 +0900, Masahiro Yamada wrote:
> Commit 9012d011660e ("compiler: allow all arches to enable
> CONFIG_OPTIMIZE_INLINING") allowed all architectures to enable
> this option. A couple of build errors were reported by randconfig,
> but all of them have been ironed out.
>
> Towards the goal of removing CONFIG_OPTIMIZE_INLINING entirely
> (and it will simplify the 'inline' macro in compiler_types.h),
> this commit changes it to always-on option. Going forward, the
> compiler will always be allowed to not inline functions marked
> 'inline'.
>
> This is not a problem for x86 since it has been long used by
> arch/x86/configs/{x86_64,i386}_defconfig.
>
> I am keeping the config option just in case any problem crops up for
> other architectures.
>
> The code clean-up will be done after confirming this is solid.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[ Resending as the mail delivery system failed to resolve some the hosts,
namely Masahiro's ]
[ Adding some ARM people as they might be able to help ]
This was found to cause a regression on a Raspberry Pi 2 B built with
bcm2835_defconfig which among other things has no SMP support.
The relevant logs (edited to remove the noise) are:
[ 5.827333] Run /init as init process
Loading, please wait...
Failed to set SO_PASSCRED: Bad address
Failed to bind netlink socket: Bad address
Failed to create manager: Bad address
Failed to set SO_PASSCRED: Bad address
[ 9.021623] systemd[1]: SO_PASSCRED failed: Bad address
[!!!!!!] Failed to start up manager.
[ 9.079148] systemd[1]: Freezing execution.
I looked into it, it turns out that the call to get_user() in sock_setsockopt()
is returning -EFAULT. Down the assembly rabbit hole that get_user() is I
found-out that it's the macro 'check_uaccess' who's triggering the error.
I'm clueless at this point, so I hope you can give me some hints on what's
going bad here.
Regards,
Nicolas
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next prev parent reply other threads:[~2019-09-27 10:58 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-30 3:43 [PATCH] compiler: enable CONFIG_OPTIMIZE_INLINING forcibly Masahiro Yamada
2019-08-30 3:43 ` Masahiro Yamada
2019-08-30 20:54 ` Nick Desaulniers
2019-08-30 20:54 ` Nick Desaulniers
2019-09-26 8:54 ` Geert Uytterhoeven
2019-09-26 8:54 ` Geert Uytterhoeven
2019-09-26 9:02 ` Masahiro Yamada
2019-09-26 9:02 ` Masahiro Yamada
2019-09-26 9:26 ` Geert Uytterhoeven
2019-09-26 9:26 ` Geert Uytterhoeven
2019-09-26 9:46 ` Masahiro Yamada
2019-09-26 9:46 ` Masahiro Yamada
2019-09-27 10:43 ` Nicolas Saenz Julienne
2019-09-27 10:43 ` Nicolas Saenz Julienne
2019-09-27 10:59 ` Charles Keepax
2019-09-27 10:59 ` Charles Keepax
2019-09-27 22:08 ` Nick Desaulniers
2019-09-27 22:08 ` Nick Desaulniers
2019-09-27 22:38 ` Linus Torvalds
2019-09-27 22:38 ` Linus Torvalds
2019-09-30 11:26 ` Will Deacon
2019-09-30 11:26 ` Will Deacon
2019-09-30 12:05 ` Masahiro Yamada
2019-09-30 12:05 ` Masahiro Yamada
2019-09-30 12:18 ` Will Deacon
2019-09-30 12:18 ` Will Deacon
2019-09-30 21:50 ` Nick Desaulniers
2019-09-30 21:50 ` Nick Desaulniers
2019-09-30 22:08 ` Miguel Ojeda
2019-09-30 22:08 ` Miguel Ojeda
2019-09-30 22:34 ` Nick Desaulniers
2019-09-30 22:34 ` Nick Desaulniers
2019-10-01 9:28 ` Will Deacon
2019-10-01 9:28 ` Will Deacon
2019-10-01 16:32 ` Nick Desaulniers
2019-10-01 16:32 ` Nick Desaulniers
2019-10-01 17:01 ` Will Deacon
2019-10-01 17:01 ` Will Deacon
2019-10-01 17:44 ` Nick Desaulniers
2019-10-01 17:44 ` Nick Desaulniers
2019-10-01 17:55 ` Russell King - ARM Linux admin
2019-10-01 17:55 ` Russell King - ARM Linux admin
2019-10-01 18:00 ` Nick Desaulniers
2019-10-01 18:00 ` Nick Desaulniers
2019-10-01 18:14 ` Russell King - ARM Linux admin
2019-10-01 18:14 ` Russell King - ARM Linux admin
2019-10-01 20:21 ` Nick Desaulniers
2019-10-01 20:21 ` Nick Desaulniers
2019-10-01 20:53 ` Arnd Bergmann
2019-10-01 20:53 ` Arnd Bergmann
2019-10-01 21:06 ` Miguel Ojeda
2019-10-01 21:06 ` Miguel Ojeda
2019-10-01 21:14 ` Nick Desaulniers
2019-10-01 21:14 ` Nick Desaulniers
2019-10-01 20:59 ` Russell King - ARM Linux admin
2019-10-01 20:59 ` Russell King - ARM Linux admin
2019-10-01 21:26 ` Russell King - ARM Linux admin
2019-10-01 21:26 ` Russell King - ARM Linux admin
2019-10-01 21:32 ` Nick Desaulniers
2019-10-01 21:32 ` Nick Desaulniers
2019-10-01 21:58 ` Russell King - ARM Linux admin
2019-10-01 21:58 ` Russell King - ARM Linux admin
2019-10-02 12:55 ` Geert Uytterhoeven
2019-10-02 12:55 ` Geert Uytterhoeven
2019-10-02 18:51 ` Will Deacon
2019-10-02 18:51 ` Will Deacon
2019-10-02 20:39 ` Linus Torvalds
2019-10-02 20:39 ` Linus Torvalds
2019-10-03 2:10 ` Masahiro Yamada
2019-10-03 2:10 ` Masahiro Yamada
2019-10-03 17:01 ` Linus Torvalds
2019-10-03 17:01 ` Linus Torvalds
2019-10-03 17:08 ` Linus Torvalds
2019-10-03 17:08 ` Linus Torvalds
2019-10-03 17:23 ` Masahiro Yamada
2019-10-03 17:23 ` Masahiro Yamada
2019-10-03 17:29 ` Linus Torvalds
2019-10-03 17:29 ` Linus Torvalds
2019-10-03 20:21 ` Miguel Ojeda
2019-10-03 20:21 ` Miguel Ojeda
2019-10-04 7:37 ` Geert Uytterhoeven
2019-10-04 7:37 ` Geert Uytterhoeven
2019-10-03 16:36 ` Will Deacon
2019-10-03 16:36 ` Will Deacon
2019-10-12 10:15 ` Stefan Wahren
2019-10-12 10:15 ` Stefan Wahren
2019-10-12 11:12 ` Masahiro Yamada
2019-10-12 11:12 ` Masahiro Yamada
2019-10-12 14:45 ` Russell King - ARM Linux admin
2019-10-12 14:45 ` Russell King - ARM Linux admin
2019-10-01 9:39 ` Masahiro Yamada
2019-10-01 9:39 ` Masahiro Yamada
2019-10-01 10:40 ` Will Deacon
2019-10-01 10:40 ` Will Deacon
2019-09-27 10:58 ` Nicolas Saenz Julienne [this message]
2019-09-27 10:58 ` Nicolas Saenz Julienne
2019-09-30 6:04 ` Masahiro Yamada
2019-09-30 6:04 ` Masahiro Yamada
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