From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.web.de (mout.web.de [212.227.17.12]) (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 AE3D91898E5 for ; Fri, 30 Aug 2024 12:35:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.17.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725021357; cv=none; b=h7Cz/4xA/GR9C0REFkXBOTWiD4Ymg60MUMHIiVWCQuNYeic8ZLQbIpqeASvZJqsAwGyF1wfE2uf43Llxu0552xgmpETdKNlJrQRM0TIVmMCnR1UL1jiFCcQFB394TDnMhhvA4+86JNmpu/O/8GiXBGFxzJja+C/wFr1U6KuLbhc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725021357; c=relaxed/simple; bh=mZj/imiSVkpXgD5AHKUTaDYg7AqBlz8uK0U/HLKNt7o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ua8Y96lP7bSdh6gVF6oeSuNN29HdP7FAFQws8z1pHMD/r48mcH36O5djJTAlr8B+4aJ+eL4l4y5P7CwEGUdLKjB+F3qEMtosxjpltGV71W3NKxiMnu5nYW2b3xd3GMJS5KFQoNyEGf2lzSijY7Nxjm4LGCgwua+W2UBAEzqRJ8k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de; spf=pass smtp.mailfrom=web.de; dkim=pass (2048-bit key) header.d=web.de header.i=spasswolf@web.de header.b=b2kpA9mn; arc=none smtp.client-ip=212.227.17.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=web.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=web.de header.i=spasswolf@web.de header.b="b2kpA9mn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1725021301; x=1725626101; i=spasswolf@web.de; bh=4nbOvOVDATFNtTnDtR8RSedgSxHedphyClRNJUDjV2I=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:Message-ID:In-Reply-To: References:MIME-Version:cc:content-transfer-encoding:content-type: date:from:message-id:mime-version:reply-to:subject:to; b=b2kpA9mn3CRTll3lwC+tFMlzFEPc6Sr/QcL3m7QgTUor4EmDbUjMFm7wis7RPU55 AHO9GUeJdldqqSJy5QCqCqLDcZbzKWvm4LFkj0Ygp5VsbvKi//6uPzd5Qst6OajKA v1WDzdJxVAox50P34+IX0L2BmRtHx29hINXb6CPDRstYGDuzOAGhMpNeUoZHADQo4 zTuGpqqnPJ2VBOydTCExF4lXhrcAMuJGweq/s1vROZa+bfE5Ey/sQrPJUN4E4p+Jx VbBOcjCwUZy9ubu6WghvrpsFAy4c8d+ro6+wBPkSQHJTq/rGF0qIDtErOCLS9kyrn moDfEGDojwlB4d7cow== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from localhost.localdomain ([84.119.92.193]) by smtp.web.de (mrweb106 [213.165.67.124]) with ESMTPSA (Nemesis) id 1Mho0A-1s6GEn30Vc-00mKhP; Fri, 30 Aug 2024 14:35:01 +0200 From: Bert Karwatzki To: Peter Zijlstra Cc: Bert Karwatzki , linux-kernel@vger.kernel.org, bsegall@google.com, dietmar.eggemann@arm.com, efault@gmx.de, juri.lelli@redhat.com, kprateek.nayak@amd.com, mgorman@suse.de, mingo@redhat.com, rostedt@goodmis.org, tglx@linutronix.de, vincent.guittot@linaro.org, vschneid@redhat.com, wuyun.abel@bytedance.com, youssefesmat@chromium.org Subject: Re: [PATCH 17/24] sched/fair: Implement delayed dequeue Date: Fri, 30 Aug 2024 14:34:56 +0200 Message-ID: <20240830123458.3557-1-spasswolf@web.de> X-Mailer: git-send-email 2.45.2 In-Reply-To: 20240727105030.226163742@infradead.org References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Provags-ID: V03:K1:Qf/dK0i6GtjSXQL8BhzlRxzi7gFe6iAy2qqnsIR1XVUJ2fZzYlF cf69hF/02wemnHE9vDfGIv+uZuYSPON3iEjUO5P+TU03Ld6JvgN+wTloFkHepAMOmQCTGR2 wRvBniQC71xW7OL2Q3TahuG7/N0QNXrEKAk1G3yLY66tbSxFPjOPwmcSDdcTAH3MWXyG7w9 2jim0hhJ/lwvmOfd2QQKg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:yhoQen5k9PM=;o9xImAfzxUwIQRw7doM/8R5Y05w XWCgqNQfXLldyu2XOZJ48VsrDi35vbplbaMjB7hlUC04OMLjl2/IrLCvYBS793PDVH3iMy5S1 Z4dz/+6OvLmtQT2ukkYjaxjmcl2oCIjAw4StVmCBbdQcaYF3cOjBlkCKDRD47moUMslV3d0xi ewBimnO5x3IgR6RWQvaocKJs7gIE9XmFoFKXzqGzbNQNPs1O6gt36pvlfpc0tVSYBgboed+Ut JMsiqvNlo6AP4/gyTrX9BX1QlMWrIZnwlmbzZXHn5Sh9IXmV317ZfunwXZVb+ETjM5pEe/dF+ N2YvqkdQRVRCxKsNmb147gMy2GwpBH7N9zscKcvjHUHiVWYYsSNHRdmpS7x9m+eLOZgCSCFWS HmtckD6WNUXfMy/XOWkRc27kGDL9Qze2fnMlcqNieluz3yLQ1dwJsCf25amZLV73TWq26UuH/ v+KlXobmI6b2MZdAAgJ/Qog5Xg5jOG8D68yiABvvvhzjhBIQ9SwVEYDR0UUmYHE3HfRYj9ceU zNss3kauXh4xITd8PrFVyWTnuNd8Sja/DXmrTduAVHcJqpz/6dmwJA3SZ4TzHTEvj37aQgRNA vyTo23VRfts6AvSuOYYWIzsdqzEoH4GcabQCEkjc3PgSkIJz7Olpk3idJUR0VA4sRekbsigv/ Fd9nzmzQ8PtWwKuQ3ZUTyfUymYYB94EVawiX5Cq4nztKTt9P94Gx3KybTfD8AcmTUx237a3Ph ayxY6ODtjt1A3Zondc6i91V+wsF64ZSbq284RsU3KanftRFgq5cNOI+ehfEZsubHV726XFZkT ouHn30evrW/3CsPTA09kyI9Q== Since linux next-20240820 the following messages appears when booting: [ T1] smp: Bringing up secondary CPUs ... [ T1] smpboot: x86: Booting SMP configuration: [ T1] .... node #0, CPUs: #2 #4 #6 #8 #10 #12 #14 #1 This is the line I'm concerend about: [ T1] psi: inconsistent task state! task=61:cpuhp/3 cpu=0 psi_flags=4 clear=0 set=4 [ T1] #3 #5 #7 #9 #11 #13 #15 [ T1] Spectre V2 : Update user space SMT mitigation: STIBP always-on [ T1] smp: Brought up 1 node, 16 CPUs [ T1] smpboot: Total of 16 processors activated (102216.16 BogoMIPS) I bisected this to commit 152e11f6df29 ("sched/fair: Implement delayed dequeue"). Is this normal or is this something I should worry about? Bert Karwatzki