From: Pavel Machek <pavel@ucw.cz>
To: kernel list <linux-kernel@vger.kernel.org>,
sds@tycho.nsa.gov, luto@amacapital.net, arjan@linux.intel.com,
bp@alien8.de, brgerst@gmail.com, dvlasenk@redhat.com,
hpa@zytor.com, torvalds@linux-foundation.org, efault@gmx.de,
peterz@infradead.org, tglx@linutronix.de
Subject: Re: 4.4-rc5: ugly warn on: 5 W+X pages found
Date: Mon, 14 Dec 2015 13:29:23 +0100 [thread overview]
Message-ID: <20151214122856.GA3598@amd> (raw)
In-Reply-To: <20151214080403.GA3708@amd>
On Mon 2015-12-14 09:04:03, Pavel Machek wrote:
> Hi!
>
> > Kernel complains:
>
> And now, we are at -rc5, and kernel still complains...
>
> ...with a back trace, which is clearly completely useless, and just
> there to make it scary and make people report.
>
> Problem is... noone cares for the reports. (-rc0 version below).
>
> Can we get rid of that WARN_ON? If you do care about reports, please
> add email address those can be reported to. If you don't... just drop
> it.
>
> Hardware is thinkpad x60.
> [ 3.285993] x86/mm: Found insecure W+X mapping at address
> ffe69000/0xffe69000
---[ Persisent kmap() Area ]---
0xffc00000-0xffd28000 1184K pte
0xffd28000-0xffddd000 724K RW GLB NX pte
0xffddd000-0xffe69000 560K pte
0xffe69000-0xffe6e000 20K RW GLB x pte
0xffe6e000-0xffe6f000 4K pte
---[ Fixmap Area ]---
Any other info that would be useful?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
prev parent reply other threads:[~2015-12-14 12:29 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-15 7:00 4.4-rc0: 5 W+X pages found Pavel Machek
2015-11-23 14:37 ` Mihai Donțu
2015-12-08 21:19 ` Kees Cook
2015-12-09 0:10 ` Dave Jones
2015-12-09 19:33 ` Mihai Donțu
2015-12-14 8:04 ` 4.4-rc5: ugly warn on: " Pavel Machek
2015-12-14 8:58 ` Borislav Petkov
2015-12-14 9:07 ` Pavel Machek
2015-12-14 9:15 ` Borislav Petkov
2015-12-14 19:18 ` Linus Torvalds
2015-12-14 20:26 ` Pavel Machek
2015-12-14 21:02 ` Andy Lutomirski
2015-12-14 21:24 ` Arjan van de Ven
2015-12-14 22:25 ` Andy Lutomirski
2015-12-15 9:40 ` Pavel Machek
2015-12-15 17:45 ` Linus Torvalds
2015-12-15 18:30 ` Borislav Petkov
2015-12-15 19:06 ` Linus Torvalds
2015-12-15 19:15 ` Borislav Petkov
2015-12-15 18:40 ` Andy Lutomirski
2015-12-15 19:08 ` Linus Torvalds
2015-12-15 20:58 ` Pavel Machek
2015-12-15 21:12 ` 4.4.-rc5: lguest causes " Pavel Machek
2015-12-16 2:24 ` Rusty Russell
2015-12-16 8:10 ` Pavel Machek
2015-12-15 21:33 ` 4.4-rc5: " Borislav Petkov
2015-12-15 22:07 ` Pavel Machek
2015-12-15 22:15 ` Borislav Petkov
2015-12-15 7:56 ` Pavel Machek
2015-12-15 8:09 ` [PATCH 0/2] x86/mm: A _PAGE_NX fixlet and a kmap cleanup Andy Lutomirski
2015-12-15 8:09 ` [PATCH 1/2] x86_32/mm: Set NX in __supported_pte_mask before enabling paging Andy Lutomirski
2015-12-15 8:09 ` [PATCH 2/2] x86/mm: Make kmap_prot into a #define Andy Lutomirski
2016-01-19 9:26 ` [PATCH 0/2] x86/mm: A _PAGE_NX fixlet and a kmap cleanup Ingo Molnar
2016-01-19 19:44 ` Andy Lutomirski
2015-12-15 13:26 ` 4.4-rc5: ugly warn on: 5 W+X pages found Arjan van de Ven
2015-12-15 14:08 ` Pavel Machek
2015-12-15 16:28 ` H. Peter Anvin
2015-12-15 17:45 ` Pavel Machek
2015-12-14 12:29 ` Pavel Machek [this message]
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