Linux Trace Kernel
 help / color / mirror / Atom feed
From: Crystal Wood <crwood@redhat.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Tomas Glozar <tglozar@redhat.com>, John Kacur <jkacur@redhat.com>,
	linux-trace-kernel@vger.kernel.org,
	Crystal Wood <crwood@redhat.com>
Subject: [PATCH v2 0/9] tracing/osnoise: Synchronization fixes
Date: Fri,  9 Oct 2026 21:23:29 -0500	[thread overview]
Message-ID: <20261010022338.2507589-1-crwood@redhat.com> (raw)

Various improvements to synchronization in osnoise/timerlat.

v2 addresses issues raised by Sashiko, as well as a few more problems
discovered in additional testing.

v1: https://lore.kernel.org/all/20260824211544.3984835-1-crwood@redhat.com/

Crystal Wood (9):
  tracing/osnoise: Variable cleanup
  tracing/osnoise: Hold a ref on osn->kthread
  tracing/osnoise: Per-cpu mutexes and fd detachment
  tracing/osnoise: kthreads: Verify CPU after migrate_disable()
  tracing/osnoise: start_kthread: Always check OSN_WORKLOAD
  tracing/osnoise: Take trace_types_lock in timerlat_fd_open
  tracing/osnoise: Split out per-cpu variable resets
  tracing/osnoise: Print taint message for timerlat
  tracing/osnoise: Refuse timerlat fd open if tracer inactive

 Documentation/trace/timerlat-tracer.rst |   5 +-
 kernel/trace/trace_osnoise.c            | 462 ++++++++++++++----------
 2 files changed, 280 insertions(+), 187 deletions(-)

-- 
2.54.0


             reply	other threads:[~2026-10-10  2:24 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-10  2:23 Crystal Wood [this message]
2026-10-10  2:23 ` [PATCH v2 1/9] tracing/osnoise: Variable cleanup Crystal Wood
2026-10-10  2:23 ` [PATCH v2 2/9] tracing/osnoise: Hold a ref on osn->kthread Crystal Wood
2026-10-10  2:23 ` [PATCH v2 3/9] tracing/osnoise: Per-cpu mutexes and fd detachment Crystal Wood
2026-10-10  2:35   ` sashiko-bot
2026-10-10  2:23 ` [PATCH v2 4/9] tracing/osnoise: kthreads: Verify CPU after migrate_disable() Crystal Wood
2026-10-10  2:23 ` [PATCH v2 5/9] tracing/osnoise: start_kthread: Always check OSN_WORKLOAD Crystal Wood
2026-10-10  2:34   ` sashiko-bot
2026-10-10  2:23 ` [PATCH v2 6/9] tracing/osnoise: Take trace_types_lock in timerlat_fd_open Crystal Wood
2026-10-10  2:23 ` [PATCH v2 7/9] tracing/osnoise: Split out per-cpu variable resets Crystal Wood
2026-10-10  2:36   ` sashiko-bot
2026-10-10  2:23 ` [PATCH v2 8/9] tracing/osnoise: Print taint message for timerlat Crystal Wood
2026-10-10  2:23 ` [PATCH v2 9/9] tracing/osnoise: Refuse timerlat fd open if tracer inactive Crystal Wood

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=20261010022338.2507589-1-crwood@redhat.com \
    --to=crwood@redhat.com \
    --cc=jkacur@redhat.com \
    --cc=linux-trace-kernel@vger.kernel.org \
    --cc=rostedt@goodmis.org \
    --cc=tglozar@redhat.com \
    /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