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Mon, 01 Jun 2026 11:38:47 -0400 X-MC-Unique: GsjfY8OuMkyGEWxwisTCsw-1 X-Mimecast-MFC-AGG-ID: GsjfY8OuMkyGEWxwisTCsw_1780328326 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id D64571955EBA; Mon, 1 Jun 2026 15:38:45 +0000 (UTC) Received: from fedora-pc.redhat.corp (headnet01.pony-001.prod.iad2.dc.redhat.com [10.2.32.101]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 289BE18004A3; Mon, 1 Jun 2026 15:38:42 +0000 (UTC) From: Gabriele Monaco To: linux-kernel@vger.kernel.org Cc: Gabriele Monaco , Steven Rostedt , Nam Cao , Wen Yang , linux-trace-kernel@vger.kernel.org Subject: [PATCH v4 00/13] rv: Fixes on Deterministic and Hybrid Automata Date: Mon, 1 Jun 2026 17:38:27 +0200 Message-ID: <20260601153840.124372-1-gmonaco@redhat.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 X-Mimecast-MFC-PROC-ID: FzlO6TaJjvqrV6Cywh8EPy6fVIfMrSLJ0SFVdGZxFE0_1780328326 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true Fix issues that were reported by bots or visible only after integration: * Make sure timers are always terminated and waited for when disabling the monitor or when the target terminates * Run per-cpu monitors with migration disabled since preemption is now enabled from tracepoints * Fix a wrong __user specifier in a helper function * Other cleanup and concurrency issues Differences since V3 [1]: * Use separate reset functions for HA init/reset to avoid globals * Reset monitor before sync stopping the timer on HA per-task exit hook Differences since V2 [2]: * Applied from reviews changes to commit messages * Rearranged order to put non-fixes and not-reviewed patches in the end * Synchronise monitors before resetting them to avoid rearming * Protect against racing timer callbacks during destruction Differences since V1 [3]: * Fix memory consistency with timer callbacks racing with resets * Add per-obj deallocation hook in rvgen generated code * Do not rely on clean monitor when initialising HA * Add tracepoint synchronisation before returning per-task slots * Fix suffix strip in dot2k * Generate stub deallocation hooks instead of failing build when per-obj miss those [1] - https://lore.kernel.org/lkml/20260530141652.58084-1-gmonaco@redhat.com [2] - https://lore.kernel.org/lkml/20260527062313.39908-1-gmonaco@redhat.com [3] - https://lore.kernel.org/lkml/20260512140250.262190-1-gmonaco@redhat.com Cc: Steven Rostedt Cc: Nam Cao Cc: Wen Yang Cc: linux-trace-kernel@vger.kernel.org Gabriele Monaco (12): rv: Fix __user specifier usage in extract_params() rv: Reset per-task DA monitors before releasing the slot rv: Prevent in-flight per-task handlers from using invalid slots rv: Ensure all pending probes terminate on per-obj monitor destroy rv: Do not rely on clean monitor when initialising HA rv: Add automatic cleanup handlers for per-task HA monitors rv: Ensure synchronous cleanup for HA monitors rv: Prevent task migration while handling per-CPU events rv: Use 0 to check preemption enabled in opid verification/rvgen: Fix suffix strip in dot2k rv: Fix read_lock scope in per-task DA cleanup verification/rvgen: Generate cleanup hook for per-obj monitor Wen Yang (1): rv: Fix monitor start ordering and memory ordering for monitoring flag include/rv/da_monitor.h | 145 ++++++++++++++---- include/rv/ha_monitor.h | 91 ++++++++++- include/rv/ltl_monitor.h | 1 + kernel/trace/rv/monitors/deadline/deadline.h | 3 +- kernel/trace/rv/monitors/nomiss/nomiss.c | 4 +- kernel/trace/rv/monitors/opid/opid.c | 12 +- kernel/trace/rv/monitors/stall/stall.c | 4 +- tools/verification/rvgen/rvgen/dot2k.py | 19 ++- .../rvgen/rvgen/templates/dot2k/main.c | 4 +- 9 files changed, 234 insertions(+), 49 deletions(-) base-commit: e43ffb69e0438cddd72aaa30898b4dc446f664f8 -- 2.54.0