linux-kernel - Re: Error: freeing invalid memtype

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID:  <20090408210013.62e878c6@halo.dirtyepic.sk.ca>
Date:	Wed, 8 Apr 2009 21:00:13 -0600
From:	Ryan Hill <dirtyepic@...too.org>
To:	linux-kernel@...r.kernel.org
Subject:  Re: Error: freeing invalid memtype

On Tue, 24 Mar 2009 23:25:16 +0100
Ingo Molnar <mingo@...e.hu> wrote:

> No, there was no fix in this area mainline, so it's this patch. I've 
> queued up the fix for the .30 merge window with a -stable backport 
> tag - so it will show up in .29.1 or .29.2 if it remains 
> problem-free.
> 
> Thanks a lot for your testing! Below is the final commit.

I'm running 2.6.29.1 which has this patch but I'm still seeing an insane
number of these.  I can't trigger them just by running glxinfo like
Kevin, however opening a few tabs containing large images in firefox does the
trick and also freezes my system for about a minute.

cat /debug/x86/pat_memtype_list before the bug gives me ~17000 lines, of the form

write-combining @ 0xeff70000-0xeff71000
write-combining @ 0xeff71000-0xeff72000
write-combining @ 0xeff72000-0xeff73000
write-combining @ 0xeff73000-0xeff74000
write-combining @ 0xeff74000-0xeff75000
write-combining @ 0xeff75000-0xeff76000
write-combining @ 0xeff76000-0xeff77000
write-combining @ 0xeff77000-0xeff78000
write-combining @ 0xeff78000-0xeff79000
write-combining @ 0xeff79000-0xeff7a000

checking pat_memtype_list after triggering the bug produced ~25000 lines, so
I'm thinking a diff isn't really helpful.

you can find my kernel log @
http://dev.gentoo.org/~dirtyepic/misc/logs/20090508-kern.log

what other info do you need?


-- 
gcc-porting,                                      by design, by neglect
treecleaner,                              for a fact or just for effect
wxwidgets @ gentoo     EFFD 380E 047A 4B51 D2BD C64F 8AA8 8346 F9A4 0662

Download attachment "signature.asc" of type "application/pgp-signature" (199 bytes)