From: Dan Carpenter <dan.carpenter@oracle.com>
To: Wolfram Sang <wsa@the-dreams.de>
Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
Erico Nunes <erico.nunes@datacom.ind.br>,
kernel-janitors@vger.kernel.org, LKP <lkp@01.org>
Subject: Re: [PATCH] Revert "i2c: dev: switch from register_chrdev to cdev API"
Date: Sat, 28 May 2016 12:15:59 +0300 [thread overview]
Message-ID: <20160528091559.GR11011@mwanda> (raw)
In-Reply-To: <1464426467-1824-1-git-send-email-wsa@the-dreams.de>
On Sat, May 28, 2016 at 11:07:47AM +0200, Wolfram Sang wrote:
> This reverts commit d6760b14d4a1243f918d983bba1e35c5a5cd5a6d. When
> hitting Linus' tree, buildbots ran additional checks and found boot
> problems. Although Dan Carpenter provided an obvious fix already, I
> still could not reproduce one problem manually (at least not on a
> Saturday morning). So we'll try again later after some more
> investigation.
>
These kinds of use after frees don't always cause a runtime problem. I
found it using static analysis, but I bet you could detect it if you
enabled kasan. The other option is to enable PAGE_POISONING?
regards,
dan carpenter
next prev parent reply other threads:[~2016-05-28 9:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-28 9:07 [PATCH] Revert "i2c: dev: switch from register_chrdev to cdev API" Wolfram Sang
2016-05-28 9:15 ` Dan Carpenter [this message]
2016-05-28 16:04 ` Wolfram Sang
2016-05-30 7:05 ` Dan Carpenter
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=20160528091559.GR11011@mwanda \
--to=dan.carpenter@oracle.com \
--cc=erico.nunes@datacom.ind.br \
--cc=kernel-janitors@vger.kernel.org \
--cc=linux-i2c@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lkp@01.org \
--cc=wsa@the-dreams.de \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).