From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A602471435 for ; Sun, 4 Oct 2026 18:21:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791138093; cv=none; b=OZW+a6jbaXIE7lopOlZ0gkEGv2mP1rhOVgmAD7X06noKq/JI5r7QMBtn7SemlaBUr6WBH6cBa8OQdEJv1aymL/CrIyuglXsfHatgoMuEradG+wv4dR7g+j2fOOqTp1O90+zg09UyEw/8AzJau8gHgRd6qUoWp5iJaFxhTXd0Suo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791138093; c=relaxed/simple; bh=InHyPeCW6ameOspzFj4J/cMOx4oZKvzIUHBQzNfrsmc=; h=Date:To:From:Subject:Message-Id; b=j4tKH2XFBaM7xqCwhM2ABeLfEgqAPh4octRyQnLq0sU02R/RXTmPvhfpsEyP1d2p07m1K4/1YVJ5ksX6feWMGIt06A2lwSTQ4dGUe3oW+RN2jKJk3A+jvGjyFaTXrTWA7GUr+vt50oJI9cBMPxBNL7clCUaK4eJU33hqfKPUyYE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=HtfW/A1O; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="HtfW/A1O" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 270231F00893; Sun, 4 Oct 2026 18:21:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791138092; bh=NAnUf2j43XrikMGkQV0AkFmmhmMiugBrG+rBvQgir50=; h=Date:To:From:Subject; b=HtfW/A1OOe43n48A3wNhISl+xDlSVSUim3c9fTPUeXBXWSWzLiSe6aezjQweHvl13 6CNA/j1janlmwovHBDE9+AFLSFhhSeD8+lzmn44e2eH96x34OvYdfe4i05svwc0j24 2fFR++a1ywUnWbHcK45a6thlA+f3VQTva++0naQQ= Date: Sun, 04 Oct 2026 11:21:31 -0700 To: mm-commits@vger.kernel.org,atomlin@atomlin.com,akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] hung_task-log-summary-line-when-warning-budget-is-exhausted.patch removed from -mm tree Message-Id: <20261004182132.270231F00893@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: hung_task: log summary line when warning budget is exhausted has been removed from the -mm tree. Its filename was hung_task-log-summary-line-when-warning-budget-is-exhausted.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: Aaron Tomlin Subject: hung_task: log summary line when warning budget is exhausted Date: Sat, 29 Aug 2026 10:53:21 -0400 Once the warning budget is exhausted, hung_task_info() normally stops printing per-task details. When panic is triggered, full details are still printed so diagnostics remain available before panic. To retain visibility without restoring per-task output after budget exhaustion, emit a single aggregate summary line at the end of each watchdog scan that detects hung tasks with an exhausted budget. This keeps non-panic per-task reports budgeted during system-wide hangs. Link: https://lore.kernel.org/20260829145321.18423-3-atomlin@atomlin.com Signed-off-by: Aaron Tomlin Signed-off-by: Andrew Morton Suggested-by: Petr Mladek Suggested-by: Lance Yang Reviewed-by: Petr Mladek Reviewed-by: Lance Yang Reviewed-by: Bradley Morgan Cc: David Laight Cc: "Masami Hiramatsu (Google)" --- kernel/hung_task.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/kernel/hung_task.c~hung_task-log-summary-line-when-warning-budget-is-exhausted +++ a/kernel/hung_task.c @@ -277,7 +277,7 @@ static void hung_task_info(struct task_s debug_show_blocker(t, timeout); if (!hung_task_warnings_budget) - pr_info("Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings\n"); + pr_info("hung_task: further per-task details suppressed until warning budget is reset or panic is triggered (see sysctl kernel.hung_task_warnings)\n"); } touch_nmi_watchdog(); @@ -363,6 +363,10 @@ static void check_hung_uninterruptible_t return; } + if (!hung_task_warnings_budget && !hung_task_call_panic) + pr_info("hung_task: %lu hung tasks detected, warning budget exhausted\n", + this_round_count); + if (need_warning || hung_task_call_panic) { si_mask |= SYS_INFO_LOCKS; _ Patches currently in -mm which might be from atomlin@atomlin.com are