From: Steffen Klassert <steffen.klassert@secunet.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Dan Kruchinin <dkruchinin@acm.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/4] padata/pcrypt: fixes
Date: Tue, 20 Jul 2010 08:47:36 +0200 [thread overview]
Message-ID: <20100720064736.GB11081@secunet.com> (raw)
In-Reply-To: <20100719073255.GA20403@gondor.apana.org.au>
This patchset contains the following fixes:
1. padata - Fix a potential hang of the parallel worker threads on
cpu hotplug.
2. padata - Fix two NULL pointer dereference crashes if one of the
padata cpumasks is empty. The crashes can be triggered by doing
echo 0 > /sys/kernel/pcrypt/pencrypt/[parallel_cpumask/serial_cpumask]
3. padata - Fix a division by zero crash if the parallel cpumask
contains no active cpu. Can be triggered by doing
echo 0 > /sys/kernel/pcrypt/pencrypt/parallel_cpumask
4. pcrypt - Fix division by zero crash if the callback cpumask
is empty. Can be triggered by doing
echo 0 > /sys/kernel/pcrypt/pencrypt/serial_cpumask
I ran a script that does cpumask changes and cpu hotplugs as fast as
possible while sending IPsec packets on maximal rate with pcrypt.
It showed no furter crashes overnight, so I hope I've got them all.
padata API corrections and some minor fixes/cleanups are comming later.
Steffen
next prev parent reply other threads:[~2010-07-20 6:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-14 10:29 [PATCH 0/3] padata: cpumasks Dan Kruchinin
2010-07-19 6:04 ` Herbert Xu
2010-07-19 6:40 ` Steffen Klassert
2010-07-19 7:32 ` Herbert Xu
2010-07-20 6:47 ` Steffen Klassert [this message]
2010-07-20 6:48 ` [PATCH 1/4] padata: Fix cpu index counting Steffen Klassert
2010-07-20 6:49 ` [PATCH 2/4] padata: Allocate cpumask dependend recources in any case Steffen Klassert
2010-07-20 6:51 ` [PATCH 3/4] padata: Check for valid cpumasks Steffen Klassert
2010-07-20 6:52 ` [PATCH 4/4] crypto: pcrypt - Dont calulate a callback cpu on empty callback cpumask Steffen Klassert
2010-07-26 6:16 ` [PATCH 0/4] padata/pcrypt: fixes Herbert Xu
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=20100720064736.GB11081@secunet.com \
--to=steffen.klassert@secunet.com \
--cc=akpm@linux-foundation.org \
--cc=dkruchinin@acm.org \
--cc=herbert@gondor.apana.org.au \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@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 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).