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Tue, 24 Sep 2024 19:35:41 +0200 Message-ID: Subject: Re: [PATCH 10/24] sched/uclamg: Handle delayed dequeue From: Mike Galbraith To: Luis Machado , Peter Zijlstra Cc: Dietmar Eggemann , Vincent Guittot , Hongyan Xia , mingo@redhat.com, juri.lelli@redhat.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, linux-kernel@vger.kernel.org, kprateek.nayak@amd.com, wuyun.abel@bytedance.com, youssefesmat@chromium.org, tglx@linutronix.de Date: Tue, 24 Sep 2024 19:35:39 +0200 In-Reply-To: References: <20240905145354.GP4723@noisy.programming.kicks-ass.net> <20240906104525.GG4928@noisy.programming.kicks-ass.net> <8d0d01b9-a430-49cc-93a5-67b4d68aa35c@arm.com> <20240910140524.GH4723@noisy.programming.kicks-ass.net> <52ca4cea-8f65-434e-af17-e4bf664d9488@arm.com> <20240911084528.GJ4723@noisy.programming.kicks-ass.net> <4fde8f26a9aeaeafda15b81bbb17b0ffc96941f0.camel@gmx.de> <20240911091328.GM4723@noisy.programming.kicks-ass.net> <2030b198180259eede6384cc6a6bc9bc9f64f874.camel@gmx.de> <627e37090198cee91bf79c41b1cd8c20c2e2d71f.camel@gmx.de> <1e89e5bcbd43934c65f8da23e7fbd59da950a0a3.camel@gmx.de> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.4 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:eGefuFChs6vbk8IWHcJPcFvSY9cOUqmJsAOnfur6MnDnvUhn5o0 uK389kZ7aAnMa1gC2/oU2gdGbMmjSDfTfWpNYM1v48poox79XoGPrjuP3SCZayqbtHAkdJN 8bIt4roQd93TTq4H0q9xsXsIseM/eTXmkDREOX8I+AjOG3t9x2vPhxOde/iUmhNBJoaNVUn OC+mvrKmtDtmKQ1PVHaVg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:E8T3M8AJvMY=;fz1cZxbI9VfX9la1knerCRWe5F1 ONxiVkbQrQSoIpcigYgUDKXx+8PiueG+PoInGy9AnyM0duG2eH/bfeMPYOVPoP33+7UlqasT0 QYlnpIc9Jkg//g/2KkDd3W+y7akbP2OyOpXQHeSfDzo5D1MuWLirIvyNcm6hoX7ONBO67x+Ht YR6yi7B8n6rfvIyTCWO0XIWX1aDiNMTN+jlKaUbPmWV/7gXHFhSC/z3y6uwRwV0cONqoWSHeD KelMJ7qTf0xuFPURyPhLJcld069PlLEEiJdCuTqDCPUadeJvnR6+VD0YNtBX2dZSEhZqhVhDe aEIkpwz6OZRn/helFVeT4iAd5bg+FCzFOXXk3Ko4eLaWf4UbGlaZfjEaH4HiY7MpL4tb03LOR IuOGAiCR3U+uULAL6+4Ye1n9DRHTuk/M5P86eLd7BXIee8PVy/+VW9OcS3IooaCDYBwNe4a4K tCMe+jk3uD4JPS9hDlv+ehG2/HEsS5imvYGtclGxzElKyov5l+kUKnd6Ewzkid6itETRNRkTy j8AUxo6EDyAhd5RcP0uO/GV5ZsUnOS2E3VwYANTPP298SRJ50cCwmr3d4sM0DnyCTjbylrMSj olWPKn96qerFetphCJ0Ahza7cNlvwIENRYL6vqqj3/Z0v3uDbijIO7ou928gXPvvJMrGSPMF5 bAE4VqknbFxzzXyURE4B5dDMieyuu3bawpl3x9T1rUOfx2BEU13YtnuA4DCM07Oilj4p9mHcZ W/XBpAroPGTNzgvcps275yvkH3MZ8duR608cL5RnI3bm2ZnlFwbdHzZ7yDN4SgUBI7OtCDjmO aGSqIJ1MvBT/Z7dPjnZCXUBQ== On Tue, 2024-09-24 at 16:16 +0100, Luis Machado wrote: > On 9/14/24 04:40, Mike Galbraith wrote: > > On Fri, 2024-09-13 at 18:39 +0200, Mike Galbraith wrote: > > > tip 4c293d0fa315 (sans sched/eevdf: More PELT vs DELAYED_DEQUEUE) > > > seems > > > to be stable. > > > > Belay that, it went boom immediately this morning while trying to > > trigger a warning I met elsewhere. > > > > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0-Mike > > Are you still hitting this one? > > I was trying to reproduce this one on the Pixel 6 (manifests as > a boot crash) but couldn't so far. Something might've changed a bit. I'm also having no luck triggering it. -Mike