From: Thomas Gleixner <tglx@kernel.org>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
LKML <linux-kernel@vger.kernel.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>,
Boqun Feng <boqun.feng@gmail.com>,
Jonathan Corbet <corbet@lwn.net>,
Prakash Sangappa <prakash.sangappa@oracle.com>,
Madadi Vineeth Reddy <vineethr@linux.ibm.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
Steven Rostedt <rostedt@goodmis.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Arnd Bergmann <arnd@arndb.de>,
linux-arch@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
Peter Zijlstra <peterz@infradead.org>,
Ron Geva <rongevarg@gmail.com>, Waiman Long <longman@redhat.com>
Subject: Re: [patch V6 09/11] rseq: Implement rseq_grant_slice_extension()
Date: Sun, 11 Jan 2026 11:22:05 +0100 [thread overview]
Message-ID: <87bjj0ih4i.ffs@tglx> (raw)
In-Reply-To: <87bjjvbc99.ffs@tglx>
On Fri, Dec 19 2025 at 00:28, Thomas Gleixner wrote:
> On Tue, Dec 16 2025 at 10:25, Mathieu Desnoyers wrote:
>> On 2025-12-15 13:24, Thomas Gleixner wrote:
>> [...]
>>> In case that the user space access faults or invalid state is detected, the
>>> task is terminated with SIGSEGV.
>>
>> It appears that only access faults trigger SIGSEGV. Perhaps removing
>> "or invalid state is detected" should be removed, or the code is missing
>> some state validation ?
>
> Seems I dropped a debug path somewhere down the road.
On purpose, so I reword the change log.
next prev parent reply other threads:[~2026-01-11 10:22 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-15 16:52 [patch V6 00/11] rseq: Implement time slice extension mechanism Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2025-12-15 16:52 ` [patch V6 01/11] rseq: Add fields and constants for time slice extension Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2025-12-16 14:36 ` Mathieu Desnoyers
2025-12-18 23:21 ` Thomas Gleixner
2026-01-07 21:11 ` Mathieu Desnoyers
2026-01-11 17:11 ` Thomas Gleixner
2026-01-13 23:45 ` Florian Weimer
2026-01-14 21:59 ` Thomas Gleixner
2026-01-17 16:16 ` Mathieu Desnoyers
2026-01-19 10:21 ` Peter Zijlstra
2026-01-19 10:30 ` Mathieu Desnoyers
2026-01-19 11:03 ` Peter Zijlstra
2026-01-19 11:10 ` Mathieu Desnoyers
2026-01-19 11:27 ` Peter Zijlstra
2026-01-19 10:46 ` Florian Weimer
2026-01-17 9:36 ` Peter Zijlstra
2026-01-19 10:10 ` Peter Zijlstra
2026-01-22 10:16 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 02/11] rseq: Provide static branch for time slice extensions Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2026-01-22 10:16 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 03/11] rseq: Add statistics " Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2026-01-22 10:16 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 04/11] rseq: Add prctl() to enable " Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2026-01-22 10:16 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 05/11] rseq: Implement sys_rseq_slice_yield() Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2025-12-16 14:59 ` Mathieu Desnoyers
2026-01-22 10:16 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 06/11] rseq: Implement syscall entry work for time slice extensions Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2025-12-16 15:05 ` Mathieu Desnoyers
2025-12-18 22:28 ` Thomas Gleixner
2025-12-18 22:30 ` Mathieu Desnoyers
2026-01-22 10:16 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 07/11] rseq: Implement time slice extension enforcement timer Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2025-12-16 7:18 ` Randy Dunlap
2025-12-16 17:55 ` Prakash Sangappa
2025-12-16 8:26 ` [patch V6.1 " Thomas Gleixner
2025-12-16 15:13 ` [patch V6 " Mathieu Desnoyers
2025-12-18 15:05 ` Peter Zijlstra
2025-12-18 23:26 ` Thomas Gleixner
2025-12-19 10:05 ` Peter Zijlstra
2026-01-16 18:15 ` Peter Zijlstra
2026-01-18 10:46 ` Thomas Gleixner
2026-01-19 10:01 ` Peter Zijlstra
2025-12-18 15:18 ` Peter Zijlstra
2025-12-18 23:25 ` Thomas Gleixner
2026-01-17 9:57 ` Peter Zijlstra
2026-01-23 17:38 ` Prakash Sangappa
2026-01-23 17:41 ` Prakash Sangappa
2026-01-27 18:48 ` Peter Zijlstra
2026-01-22 10:16 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 08/11] rseq: Reset slice extension when scheduled Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2025-12-16 15:17 ` Mathieu Desnoyers
2026-01-22 10:16 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 09/11] rseq: Implement rseq_grant_slice_extension() Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2025-12-16 15:25 ` Mathieu Desnoyers
2025-12-18 23:28 ` Thomas Gleixner
2026-01-11 10:22 ` Thomas Gleixner [this message]
2026-01-22 10:15 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 10/11] entry: Hook up rseq time slice extension Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2025-12-16 15:37 ` Mathieu Desnoyers
2025-12-19 11:07 ` Peter Zijlstra
2026-01-11 11:01 ` Thomas Gleixner
2026-01-17 9:51 ` Peter Zijlstra
2026-01-22 10:15 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2025-12-15 16:52 ` [patch V6 11/11] selftests/rseq: Implement time slice extension test Thomas Gleixner
2025-12-15 18:24 ` Thomas Gleixner
2026-01-22 10:15 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
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