From: Will Deacon <will.deacon@arm.com>
To: "Wang, Yalin" <Yalin.Wang@sonymobile.com>
Cc: "'linux-mmc@vger.kernel.org'" <linux-mmc@vger.kernel.org>,
"'linux-arch-owner@vger.kernel.org'"
<linux-arch-owner@vger.kernel.org>
Subject: Re: how to creat watchpoint in kernel for data access debug
Date: Wed, 4 Jun 2014 19:01:39 +0100 [thread overview]
Message-ID: <20140604180139.GD27881@arm.com> (raw)
In-Reply-To: <35FD53F367049845BC99AC72306C23D1029A27656A2F@CNBJMBX05.corpusers.net>
On Wed, Jun 04, 2014 at 04:05:03AM +0100, Wang, Yalin wrote:
> Hi Will,
>
> Thanks for your proposal,
> The patch google made is just like
> The one I tried before ,
> Then the problems come :
> After register the perf_event callback,
> In the callback function ,
> In google's patch , it is function crbug_345917_handler( ),
> It just call panic( ) ,
> But My callback function will do some check ,
> Sometimes, I want to bypass this time's breakpoint,
> Problems is that I don't know how to bypass it,
> If I return directly in the callback function ,
> The breakpoint will trap again and again endless ..
Take a look at enable_single_step, which uses mismatch breakpoints to try
and do the step.
Will
next prev parent reply other threads:[~2014-06-04 18:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-23 2:50 (unknown), Wang, Yalin
2014-05-23 2:51 ` how to creat watchpoint in kernel for data access debug Wang, Yalin
2014-05-23 13:45 ` Will Deacon
2014-05-24 3:48 ` Wang, Yalin
2014-06-03 16:45 ` Will Deacon
2014-06-04 3:05 ` Wang, Yalin
2014-06-04 18:01 ` Will Deacon [this message]
2014-06-05 3:40 ` Wang, Yalin
2014-06-16 12:55 ` Will Deacon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140604180139.GD27881@arm.com \
--to=will.deacon@arm.com \
--cc=Yalin.Wang@sonymobile.com \
--cc=linux-arch-owner@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.