From: David Marchand <david.marchand@redhat.com>
To: Tyler Retzlaff <roretzla@linux.microsoft.com>
Cc: dev@dpdk.org, stable@dpdk.org
Subject: Re: [PATCH 1/2] eal: fix failure race and behavior of thread create
Date: Thu, 9 Mar 2023 10:17:06 +0100 [thread overview]
Message-ID: <CAJFAV8w=+7xcysnYxJHGiTrpmxFG=_qz-Kp0CTko=yd+0nu3dg@mail.gmail.com> (raw)
In-Reply-To: <CAJFAV8xm=qe1W1bLh6G-FXbGREJJiGj+7oQ3QokT8mp18gjphQ@mail.gmail.com>
On Tue, Mar 7, 2023 at 3:33 PM David Marchand <david.marchand@redhat.com> wrote:
> On Thu, Mar 2, 2023 at 7:44 PM Tyler Retzlaff
> <roretzla@linux.microsoft.com> wrote:
> >
> > In rte_thread_create setting affinity after pthread_create may fail.
> > Such a failure should result in the entire rte_thread_create failing
> > but doesn't.
> >
> > Additionally if there is a failure to set affinity a race exists where
> > the creating thread will free ctx and depending on scheduling of the new
> > thread it may also free ctx (double free).
> >
> > Resolve both of the above issues by using the pthread_setaffinity_np
> > prior to thread creation to set the affinity of the created thread. By
> > doing this no failure paths exist after pthread_create returns
> > successfully.
> >
> > Fixes: ce6e911d20f6 ("eal: add thread lifetime API")
> > Cc: stable@dpdk.org
> > Cc: roretzla@linux.microsoft.com
> >
> > Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
> Reviewed-by: David Marchand <david.marchand@redhat.com>
Series applied, thanks.
--
David Marchand
next prev parent reply other threads:[~2023-03-09 9:17 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-02 18:44 Tyler Retzlaff
2023-03-02 18:44 ` [PATCH 2/2] eal/windows: fix create thread failure behavior Tyler Retzlaff
2023-03-07 14:33 ` [PATCH 1/2] eal: fix failure race and behavior of thread create David Marchand
2023-03-09 9:17 ` David Marchand [this message]
2023-03-09 9:58 ` Thomas Monjalon
2023-03-09 20:49 ` Tyler Retzlaff
2023-03-09 21:05 ` David Marchand
2023-03-13 23:31 ` [PATCH v2 0/2] fix race in rte_thread_create failure path Tyler Retzlaff
2023-03-13 23:31 ` [PATCH v2 1/2] eal: make cpusetp to rte thread set affinity const Tyler Retzlaff
2023-03-13 23:31 ` [PATCH v2 2/2] eal: fix failure path race setting new thread affinity Tyler Retzlaff
2023-03-14 11:47 ` [PATCH v2 0/2] fix race in rte_thread_create failure path David Marchand
2023-03-14 13:59 ` Tyler Retzlaff
2023-03-14 22:44 ` [PATCH v3 " Tyler Retzlaff
2023-03-14 22:44 ` [PATCH v3 1/2] eal: make cpusetp to rte thread set affinity const Tyler Retzlaff
2023-03-14 22:44 ` [PATCH v3 2/2] eal: fix failure path race setting new thread affinity Tyler Retzlaff
2023-03-14 22:50 ` [PATCH v4 0/2] fix race in rte_thread_create failure path Tyler Retzlaff
2023-03-14 22:50 ` [PATCH v4 1/2] eal: make cpusetp to rte thread set affinity const Tyler Retzlaff
2023-03-14 22:50 ` [PATCH v4 2/2] eal: fix failure path race setting new thread affinity Tyler Retzlaff
2023-03-15 1:20 ` Stephen Hemminger
2023-03-15 1:26 ` Tyler Retzlaff
2023-03-16 0:04 ` [PATCH v4 0/2] fix race in rte_thread_create failure path Tyler Retzlaff
2023-03-16 0:04 ` [PATCH v4 1/2] eal: make cpusetp to rte thread set affinity const Tyler Retzlaff
2023-03-16 0:04 ` [PATCH v4 2/2] eal: fix failure path race setting new thread affinity Tyler Retzlaff
2023-03-16 0:07 ` [PATCH v5 0/2] fix race in rte_thread_create failure path Tyler Retzlaff
2023-03-16 0:07 ` [PATCH v5 1/2] eal: make cpusetp to rte thread set affinity const Tyler Retzlaff
2023-03-16 0:07 ` [PATCH v5 2/2] eal: fix failure path race setting new thread affinity Tyler Retzlaff
2023-03-17 10:45 ` David Marchand
2023-03-17 14:49 ` Tyler Retzlaff
2023-03-17 18:51 ` David Marchand
2023-03-17 21:20 ` Tyler Retzlaff
2023-03-17 18:52 ` [PATCH v6] eal/unix: fix thread creation David Marchand
2023-03-17 21:24 ` Tyler Retzlaff
2023-03-18 18:26 ` David Marchand
2023-03-18 18:26 ` David Marchand
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='CAJFAV8w=+7xcysnYxJHGiTrpmxFG=_qz-Kp0CTko=yd+0nu3dg@mail.gmail.com' \
--to=david.marchand@redhat.com \
--cc=dev@dpdk.org \
--cc=roretzla@linux.microsoft.com \
--cc=stable@dpdk.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).