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Groups > linux.kernel > #1292586
| From | Pavel Machek <pavel@ucw.cz> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: 4.4-rc5: ugly warn on: 5 W+X pages found |
| Date | 2015-12-15 23:10 +0100 |
| Message-ID | <qG5Xc-1EX-9@gated-at.bofh.it> (permalink) |
| References | (5 earlier) <qFJN0-3NK-5@gated-at.bofh.it> <qFUp3-2e3-11@gated-at.bofh.it> <qG1TA-7mv-19@gated-at.bofh.it> <qG4Rs-MI-21@gated-at.bofh.it> <qG5ua-1f9-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue 2015-12-15 22:33:59, Borislav Petkov wrote: > On Tue, Dec 15, 2015 at 09:58:35PM +0100, Pavel Machek wrote: > > [ 0.000000] Base memory trampoline at [c009b000] 9b000 size 16384 > > [ 0.000000] ------------[ cut here ]------------ > > [ 0.000000] WARNING: CPU: 0 PID: 0 at > > ./arch/x86/include/asm/pgtable.h:357 kernel_physical_mapping_init+0x > > 256/0x395() > > [ 0.000000] Modules linked in: > > [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.0-rc5+ #137 > > [ 0.000000] Hardware name: LENOVO 17097HU/17097HU, BIOS 7BETD8WW > > (2.19 ) 03/31/2011 > > [ 0.000000] 00000000 00000000 c4e63e90 c42baaf8 00000000 c4e63eac > > c404066b 00000165 > > [ 0.000000] c4f134da 00000000 00000000 00000000 c4e63ebc c404070f > > 00000009 00000000 > > [ 0.000000] c4e63f18 c4f134da c4e63f00 00000000 00000000 00000000 > > 00000000 00000000 > > [ 0.000000] Call Trace: > > [ 0.000000] [<c42baaf8>] dump_stack+0x41/0x59 > > [ 0.000000] [<c404066b>] warn_slowpath_common+0x6b/0xa0 > > [ 0.000000] [<c4f134da>] ? > > kernel_physical_mapping_init+0x256/0x395 > > [ 0.000000] [<c404070f>] warn_slowpath_null+0xf/0x20 > > [ 0.000000] [<c4f134da>] kernel_physical_mapping_init+0x256/0x395 > > [ 0.000000] [<c4a4de21>] init_memory_mapping+0x191/0x300 > > [ 0.000000] [<c4f12d96>] init_mem_mapping+0xe7/0x1f3 > > Looks like the ISA range to me: > > init_mem_mapping: > > ... > > /* the ISA range is always mapped regardless of memory holes */ > init_memory_mapping(0, ISA_END_ADDRESS); > > Does that kernel_physical_mapping_init() even pay attention to > __supported_pte_mask and thus _PAGE_NX? I don't see it. Mystery solved, and prize goes to the lguest. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-14 09:10 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Borislav Petkov <bp@alien8.de> - 2015-12-14 10:00 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-14 10:10 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Borislav Petkov <bp@alien8.de> - 2015-12-14 10:20 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Linus Torvalds <torvalds@linux-foundation.org> - 2015-12-14 20:20 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-14 21:30 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Andy Lutomirski <luto@amacapital.net> - 2015-12-14 22:10 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Arjan van de Ven <arjan@linux.intel.com> - 2015-12-14 22:30 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Andy Lutomirski <luto@amacapital.net> - 2015-12-14 23:30 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-15 10:50 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Linus Torvalds <torvalds@linux-foundation.org> - 2015-12-15 18:50 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Borislav Petkov <bp@alien8.de> - 2015-12-15 19:40 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Linus Torvalds <torvalds@linux-foundation.org> - 2015-12-15 20:10 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Borislav Petkov <bp@alien8.de> - 2015-12-15 20:20 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Andy Lutomirski <luto@amacapital.net> - 2015-12-15 19:50 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Linus Torvalds <torvalds@linux-foundation.org> - 2015-12-15 20:10 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-15 22:00 +0100
4.4.-rc5: lguest causes ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-15 22:20 +0100
Re: 4.4.-rc5: lguest causes ugly warn on: 5 W+X pages found Rusty Russell <rusty@rustcorp.com.au> - 2015-12-16 03:30 +0100
Re: 4.4.-rc5: lguest causes ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-16 09:20 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Borislav Petkov <bp@alien8.de> - 2015-12-15 22:40 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-15 23:10 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Borislav Petkov <bp@alien8.de> - 2015-12-15 23:20 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-15 09:00 +0100
[PATCH 1/2] x86_32/mm: Set NX in __supported_pte_mask before enabling paging Andy Lutomirski <luto@kernel.org> - 2015-12-15 09:10 +0100
[PATCH 2/2] x86/mm: Make kmap_prot into a #define Andy Lutomirski <luto@kernel.org> - 2015-12-15 09:10 +0100
[PATCH 0/2] x86/mm: A _PAGE_NX fixlet and a kmap cleanup Andy Lutomirski <luto@kernel.org> - 2015-12-15 09:10 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Arjan van de Ven <arjan@linux.intel.com> - 2015-12-15 14:40 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-15 15:10 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found "H. Peter Anvin" <hpa@zytor.com> - 2015-12-15 17:30 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-15 18:50 +0100
Re: 4.4-rc5: ugly warn on: 5 W+X pages found Pavel Machek <pavel@ucw.cz> - 2015-12-14 13:40 +0100
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