From: Borislav Petkov <bp@alien8.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
alex@ghiti.fr, aou@eecs.berkeley.edu,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Arnd Bergmann <arnd@arndb.de>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Qian Cai <cai@lca.pw>, Catalin Marinas <catalin.marinas@arm.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
dave.jiang@intel.com, David Miller <davem@davemloft.net>,
Dmitry Vyukov <dvyukov@google.com>,
Alexander Potapenko <glider@google.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
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James Hogan <jhogan@kernel.org>,
Kan Liang <kan.liang@linux.intel.com>,
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Russell King - ARM Linux <linux@armlinux.org.uk>,
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mawilcox@microsoft.com, Ingo Molnar <mingo@elte.hu>,
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n-horiguchi@ah.jp.nec.com, Palmer Dabbelt <palmer@sifive.com>,
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Peter Zijlstra <peterz@infradead.org>,
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Steven Price <steven.price@arm.com>,
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zong.li@sifive.com
Subject: Re: [patch 064/158] mm: add generic ptdump
Date: Sun, 1 Dec 2019 16:10:11 +0100 [thread overview]
Message-ID: <20191201151010.GC6629@zn.tnic> (raw)
In-Reply-To: <CAHk-=wiaAbELGZCYZHBsAmxSeK9YdZrrp-RX057x8QoWFva4qw@mail.gmail.com>
On Sun, Dec 01, 2019 at 06:45:23AM -0800, Linus Torvalds wrote:
> On Sun, Dec 1, 2019 at 1:09 AM Borislav Petkov <bp@alien8.de> wrote:
> >
> > That generic ptdump stuff is probably causing a splat on 32-bit:
> >
> > https://lkml.kernel.org/r/20191125144946.GA6628@duo.ucw.cz
>
> Hmm. I'm not sure about code generation, but for me that config gives me
Note that I typed "probably" above because I'm not 100% sure it is
those patches that would cause it. I mean, I saw EIP pointing to
ptdump_pte_entry and was able to repro on linux-next with the .config in
a vm.
But then your master or tip/master wouldn't trigger so I shelved that as
it is merge window and other 32-bit shit was broken, which needed more
attention.
So lemme first confirm it really is caused by those patches.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2019-12-01 15:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-01 1:53 [patch 064/158] mm: add generic ptdump akpm
2019-12-01 9:07 ` Borislav Petkov
2019-12-01 14:45 ` Linus Torvalds
2019-12-01 15:10 ` Borislav Petkov [this message]
2019-12-01 15:21 ` Borislav Petkov
2019-12-01 15:45 ` Borislav Petkov
2019-12-02 9:09 ` Steven Price
2019-12-02 15:42 ` Borislav Petkov
2019-12-03 10:47 ` David Hildenbrand
2019-12-03 11:00 ` David Hildenbrand
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