From: Mathieu Desnoyers <compudj@krystal.dyndns.org>
To: Roland McGrath <roland@redhat.com>
Cc: systemtap@sources.redhat.com
Subject: Re: double fault -> PAGE_KERNEL flagged memory
Date: Wed, 23 Nov 2005 22:44:00 -0000 [thread overview]
Message-ID: <20051123224411.GA17787@Krystal> (raw)
In-Reply-To: <20051123223409.9E2DB1809B9@magilla.sf.frob.com>
* Roland McGrath (roland@redhat.com) wrote:
> In the current Linus kernel, the i386 do_page_fault routine is marked with
> __kprobes. As I understand it, this puts it in a special section and no
> kprobe can be inserted inside the function. If that's the case, I'm a bit
> confused as to how this is coming up.
>
Well, it's getting clear now that only the vmalloc_fault path of this function
is problematic. It's ok as long as this path does not call any external
function.
Mathieu
OpenPGP public key: http://krystal.dyndns.org:8080/key/compudj.gpg
Key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next prev parent reply other threads:[~2005-11-23 22:44 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-22 1:12 double fault Stone, Joshua I
2005-11-22 1:25 ` Roland McGrath
2005-11-22 9:29 ` Richard J Moore
2005-11-22 14:00 ` double fault -> PAGE_KERNEL flagged memory Mathieu Desnoyers
2005-11-22 15:12 ` Tom Zanussi
2005-11-22 15:24 ` Mathieu Desnoyers
2005-11-22 16:52 ` Tom Zanussi
2005-11-22 18:59 ` Mathieu Desnoyers
2005-11-23 15:13 ` Tom Zanussi
2005-11-23 17:53 ` Mathieu Desnoyers
2005-11-23 20:16 ` Tom Zanussi
2005-11-23 21:00 ` Frank Ch. Eigler
2005-11-23 21:51 ` Roland McGrath
2005-11-23 21:56 ` Mathieu Desnoyers
2005-11-23 22:34 ` Roland McGrath
2005-11-23 22:44 ` Mathieu Desnoyers [this message]
2005-11-23 23:20 ` Tom Zanussi
2005-11-24 18:10 ` Frank Ch. Eigler
2005-11-24 22:09 ` Roland McGrath
2005-11-23 22:18 ` Tom Zanussi
2005-11-23 22:25 ` Frank Ch. Eigler
2005-11-23 23:21 ` Mathieu Desnoyers
2005-11-22 15:17 ` Mathieu Desnoyers
2005-11-22 15:42 ` Frank Ch. Eigler
2005-11-22 16:01 ` Mathieu Desnoyers
2005-11-23 8:34 ` double fault Martin Hunt
2005-11-23 17:21 ` Mathieu Desnoyers
2005-11-23 17:54 ` Martin Hunt
2005-11-23 18:09 ` Mathieu Desnoyers
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