From: Jeff Dike <jdike@karaya.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: John Reiser <jreiser@BitWagon.com>,
Linux Kernel List <linux-kernel@vger.kernel.org>,
Julian Seward <jseward@acm.org>
Subject: Re: Valgrind meets UML
Date: Sat, 21 Dec 2002 11:05:25 -0500 [thread overview]
Message-ID: <200212211605.LAA01502@ccure.karaya.com> (raw)
In-Reply-To: Your message of "20 Dec 2002 23:32:21 PST." <1040455941.1841.123.camel@ixodes.goop.org>
jeremy@goop.org said:
> The main problem will be that newly allocated memory will still be
> considered initialized by its previous owner. Also, if UML allocates
> memory using mmap, all memory will be considered to be initialized.
What I was doing was having kfree and free_pages set the freed object to
noaccess. Presumably, that tells valgrind to consider the memory
uninitialized.
Presumably, that will also cause errors from inside the allocator if it
touches that memory at all before it's allocated again.
Jeff
next prev parent reply other threads:[~2002-12-21 15:53 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-20 2:41 Valgrind meets UML Jeff Dike
2002-12-20 15:26 ` John Reiser
2002-12-20 22:58 ` Jeff Dike
2002-12-20 23:32 ` John Reiser
2002-12-21 2:49 ` Jeff Dike
2002-12-21 7:32 ` Jeremy Fitzhardinge
2002-12-21 16:05 ` Jeff Dike [this message]
2002-12-21 14:40 ` John Reiser
2002-12-21 16:07 ` Jeff Dike
2002-12-21 16:15 ` John Reiser
2002-12-21 18:57 ` Jeff Dike
2002-12-21 19:07 ` Jeremy Fitzhardinge
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