Linux RCU subsystem development
 help / color / mirror / Atom feed
From: Joel Fernandes <joel@joelfernandes.org>
To: rcu@vger.kernel.org
Cc: paulmck@vger.kernel.org
Subject: [BUG] Boost failure on stable kernel 6.5.y-rc1
Date: Fri, 1 Sep 2023 02:41:03 +0000	[thread overview]
Message-ID: <20230901024103.GA3750199@google.com> (raw)

I got a boost failure that looks like the following. The Reader pipe counts
look good to me but there seem to be boost failures.

FWIW, I have seen this occasionally on older kernels but it was not at all
consistently reproducible. I am archiving it here for future reference:

BUG: TREE03 FAILURE, 0 instances
[ 1523.216753] rcu-torture: !!! 
[ 1523.225344] WARNING: CPU: 5 PID: 170 at kernel/rcu/rcutorture.c:2227 rcu_torture_stats_print+0x5b2/0x620
[ 1523.365730] Call Trace:
[ 1538.579852] rcu-torture: !!! Reader Pipe:  3676261572 201726 0 0 0 0 0 0 0 0 0
[ 1554.053752] rcu-torture: !!! Reader Pipe:  3714202738 203792 0 0 0 0 0 0 0 0 0
[ 1569.304750] rcu-torture: !!! Reader Pipe:  3750940990 205374 0 0 0 0 0 0 0 0 0
[ 1587.205665] rcu-torture: !!! Reader Pipe:  3783052619 207952 0 0 0 0 0 0 0 0 0
[ 1602.581730] rcu-torture: !!! Reader Pipe:  3815601996 209733 0 0 0 0 0 0 0 0 0
[ 1617.935231] rcu-torture: !!! Reader Pipe:  3851086565 211846 0 0 0 0 0 0 0 0 0
[ 1633.300072] rcu-torture: !!! Reader Pipe:  3903324168 213499 0 0 0 0 0 0 0 0 0

Full torture test directory on this failure is at:
http://box.joelfernandes.org:9080/job/rcutorture_stable/job/linux-6.5.y/2/artifact/tools/testing/selftests/rcutorture/res/2023.08.31-21.44.10/TREE03/

thanks,

 - Joel


                 reply	other threads:[~2023-09-01  2:41 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=20230901024103.GA3750199@google.com \
    --to=joel@joelfernandes.org \
    --cc=paulmck@vger.kernel.org \
    --cc=rcu@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