From: Arnd Bergmann <arnd@arndb.de>
To: cai@lca.pw
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
kasan-dev <kasan-dev@googlegroups.com>,
Linux-MM <linux-mm@kvack.org>,
Alexander Potapenko <glider@google.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Dmitry Vyukov <dvyukov@google.com>
Subject: Re: [PATCH] arm64: increase stack size for KASAN_EXTRA
Date: Tue, 11 Dec 2018 23:12:30 +0100 [thread overview]
Message-ID: <CAK8P3a2kStKc8bB1cXh=PEaVUMcg01o5AqtGM5NyJ0RT0JLPuA@mail.gmail.com> (raw)
In-Reply-To: <1544565572.18411.7.camel@lca.pw>
On Tue, Dec 11, 2018 at 10:59 PM Qian Cai <cai@lca.pw> wrote:
>
> On Tue, 2018-12-11 at 22:56 +0100, Arnd Bergmann wrote:
> > On Tue, Dec 11, 2018 at 10:52 PM Qian Cai <cai@lca.pw> wrote:
> > > On Tue, 2018-12-11 at 22:43 +0100, Arnd Bergmann wrote:
> > > > On Tue, Dec 11, 2018 at 6:18 PM Qian Cai <cai@lca.pw> wrote:
> > > I am not too keen to do the version-check considering some LTS versions
> > > could
> > > just back-port those patches and the render the version-check incorrectly.
> >
> > I'm not following what the problem is. Do you mean distro versions gcc
> > with the compiler bugfix, or LTS kernel versions?
> >
>
> I mean distro versions of GCC where the version is still 8 but keep back-porting
> tons of patches.
Ok, but in that case, checking the version would still be no worse
than your current patch, the only difference is that for users of a
fixed older gcc, the kernel would use more stack than it needs.
Arnd
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next prev parent reply other threads:[~2018-12-11 22:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <721E7B42-2D55-4866-9C1A-3E8D64F33F9C@gmx.us>
2018-12-07 22:34 ` [PATCH] arm64: increase stack size for KASAN_EXTRA Qian Cai
2018-12-11 12:42 ` Arnd Bergmann
2018-12-11 17:18 ` Qian Cai
2018-12-11 21:43 ` Arnd Bergmann
2018-12-11 21:52 ` Qian Cai
2018-12-11 21:56 ` Arnd Bergmann
2018-12-11 21:59 ` Qian Cai
2018-12-11 22:12 ` Arnd Bergmann [this message]
2018-12-11 22:22 ` Qian Cai
2018-12-11 23:06 ` Arnd Bergmann
2018-12-12 3:54 ` Qian Cai
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