[PATCH 0/2] Proxy Execution fixes for v7.1-rc

[John Stultz]

Hey All,
  So in testing with the full Proxy Execution series,
Vineeth Pillai managed to trip some interesting bugs which
initially looked to be KVM or RCU related[1], which he later
diagnosed as Proxy Execution related and created a useful test
driver to reproduce.

I found these same issues could be triggered with the upstream
portions of Proxy Execution, so I wanted to send along these
fixes for 7.1-rc

Again, a huge thanks to Vineeth for uncovering these issues
that have evaded all my stress testing so far!

Thanks
-john

[1]: https://lore.kernel.org/lkml/20260320125633.2290675-1-vineeth@xxxxxxxxxxxxxxx/

Cc: Vineeth Pillai <vineethrp@xxxxxxxxxx>
Cc: Sonam Sanju <sonam.sanju@xxxxxxxxx>
Cc: Sean Christopherson <seanjc@xxxxxxxxxx>
Cc: Kunwu Chan <kunwu.chan@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Joel Fernandes <joelagnelf@xxxxxxxxxx>
Cc: Qais Yousef <qyousef@xxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Juri Lelli <juri.lelli@xxxxxxxxxx>
Cc: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
Cc: Dietmar Eggemann <dietmar.eggemann@xxxxxxx>
Cc: Valentin Schneider <vschneid@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Waiman Long <longman@xxxxxxxxxx>
Cc: Boqun Feng <boqun.feng@xxxxxxxxx>
Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
Cc: Metin Kaya <Metin.Kaya@xxxxxxx>
Cc: Xuewen Yan <xuewen.yan94@xxxxxxxxx>
Cc: K Prateek Nayak <kprateek.nayak@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Cc: Suleiman Souhlal <suleiman@xxxxxxxxxx>
Cc: kuyo chang <kuyo.chang@xxxxxxxxxxxx>
Cc: hupu <hupu.gm@xxxxxxxxx>
Cc: kernel-team@xxxxxxxxxxx

John Stultz (2):
  sched: proxy-exec: Close race causing workqueue work being delayed
  locking: mutex: Fix proxy-exec potentially deactivating tasks marked
    TASK_RUNNING

 kernel/locking/mutex.c |  1 +
 kernel/sched/core.c    | 11 +++++++++++
 2 files changed, 12 insertions(+)

-- 
2.54.0.545.g6539524ca2-goog