From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (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 1BB38184; Fri, 4 Jul 2025 10:21:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751624491; cv=none; b=Cbxknolp2GqrFBokliFapRdP668Dak7ZAP0RkV1SLljfhwwxqoLStP62k61dUxBCScyvITA1dqnjokYm80XFZ/aTA0iyKYNAEsTRuik9D4epKdbrW1rvnJsKWipVrL172pA6BjKrPY+o5xhgz8Qkkn5akDflWw7EcOjU8yAqrr8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751624491; c=relaxed/simple; bh=+XTJSMqwvfGK5IaXH2uugAcTTaHPKMluCrXOEA+EqlU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TUowk8Q/uG7LyuhpPgpIWYGDjSl5lqR2nuSVBhZhbZ+UHETwz4z81CygCr8x0gS2t/+T4lHij1zeE+HnLjCrEW24JtB36seyNAFXQwDcI4bN6zkE51pcknM63pebW/GJKAzsm4x2BZuRwdjwg2dbrwDVT7ciqqMUO8P+6bHBpus= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=h0+Aa50G; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="h0+Aa50G" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 7C05D40E021C; Fri, 4 Jul 2025 10:21:23 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id SS55zBZ0gJcF; Fri, 4 Jul 2025 10:21:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1751624477; bh=zuTBinfrd7r5RN2nXX6H17V7ulbklGFTT6rEOZ/+Ofw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=h0+Aa50G1R9eOn6mk524xR/X6hJUJPvY8bFWADAqzL6b7jKxDv6DCcPiKdVYit6dJ 2JiBEzvFcKJlGtrS6p+8qWvx0HXVMysnrkDKkV7QS9J0fPc28AktTnlEZ05502alF6 zL1RurADea1G4ad4+duF6Bho8bMazk0m89ToaQJ8/jptWLqC23HkZbqZYhujDLGJxY i+OvtKeqcAKAWo4bente4TYPlaOfCVYC9JPOqpVRh8FlPgxPUhbtZU+WDAMCkUHHC1 thqod0Sf1Z62W9poQJw/JNHk1GVMVDXd50PMc0p18Yc1rilssYyevBEuwjsHVbzBzl zTiQJxxb4Ibhz6JyVeR1j7cIeYVTvWg5M1YNoQ8L2e9PEyxAn12fuo2rqSoxVjOklc w9i8EH7spypr1Q/6/0t9LT7UHrbuqQ0MTwdfa1Q9/9Ev0RlEG+YGUaHzQK8wkRHOyl 2m76P7f42r8rJGw6D34hHyn42dAHwgBEkT1SKnA9ZFXOZn11PRzRL3Hau5OH3CysfJ b3k5Q4sOJNz0TJBsJev6xjVg11hWHA69uVztOxlzhzGnIOiH0r+mjWh8r5DmTlZZ2r xdZoaWZ7h0IPTm8dh/AaUEDB+KQB9O8Q2xj3qqZjw0eQbWflaFXGRRJ/6zrQK6m7j+ 0WrRDO+pctdCsSFgpnpmLG1U= Received: from zn.tnic (p57969c58.dip0.t-ipconnect.de [87.150.156.88]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 88F7A40E00DD; Fri, 4 Jul 2025 10:21:09 +0000 (UTC) Date: Fri, 4 Jul 2025 12:21:03 +0200 From: Borislav Petkov To: K Prateek Nayak Cc: linux-kernel@vger.kernel.org, linux-tip-commits@vger.kernel.org, Leon Romanovsky , Valentin Schneider , "Peter Zijlstra (Intel)" , Steve Wahl , x86@kernel.org Subject: Re: [tip: sched/urgent] sched/fair: Use sched_domain_span() for topology_span_sane() Message-ID: <20250704102103.GAaGerDxWX7VhePA3j@fat_crate.local> References: <20250630061059.1547-1-kprateek.nayak@amd.com> <175162039637.406.8610358723761872462.tip-bot2@tip-bot2> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <175162039637.406.8610358723761872462.tip-bot2@tip-bot2> On Fri, Jul 04, 2025 at 09:13:16AM -0000, tip-bot2 for K Prateek Nayak wrote: > The following commit has been merged into the sched/urgent branch of tip: > > Commit-ID: 02bb4259ca525efa39a2531cb630329fb87fc968 > Gitweb: https://git.kernel.org/tip/02bb4259ca525efa39a2531cb630329fb87fc968 > Author: K Prateek Nayak > AuthorDate: Mon, 30 Jun 2025 06:10:59 > Committer: Peter Zijlstra > CommitterDate: Fri, 04 Jul 2025 10:35:56 +02:00 > > sched/fair: Use sched_domain_span() for topology_span_sane() My guest doesn't like this one and reverting it ontop of the whole tip lineup fixes it. Holler for more data if needed. [ 0.280062] Timer migration: 2 hierarchy levels; 8 children per group; 2 crossnode level [ 0.282922] NMI watchdog: Enabled. Permanently consumes one hw-PMU counter. [ 0.287572] smp: Bringing up secondary CPUs ... [ 0.288623] smpboot: x86: Booting SMP configuration: [ 0.289085] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 [ 0.302358] smp: Brought up 1 node, 16 CPUs [ 0.304445] smpboot: Total of 16 processors activated (118401.12 BogoMIPS) [ 0.307884] BUG: unable to handle page fault for address: 0000000089c402fb [ 0.307884] #PF: supervisor read access in kernel mode [ 0.307884] #PF: error_code(0x0000) - not-present page [ 0.307884] PGD 0 P4D 0 [ 0.307950] Oops: Oops: 0000 [#1] SMP NOPTI [ 0.308344] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.16.0-rc4+ #1 PREEMPT(full) [ 0.309115] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 2023.11-8 02/21/2024 [ 0.309934] RIP: 0010:build_sched_domains+0x627/0x1550 [ 0.310086] Code: 84 75 06 00 00 f3 48 0f bc c0 48 63 f8 89 c0 48 0f a3 05 c4 cf 95 08 0f 83 6c 06 00 00 48 8b 3c fd c0 db 29 82 49 8b 44 24 18 <48> 8b 04 07 48 8b 80 90 00 00 00 48 33 86 90 00 00 00 66 85 c0 0f [ 0.310086] RSP: 0018:ffffc9000001fe60 EFLAGS: 00010247 [ 0.310086] RAX: ffffffff89c402f8 RBX: ffff88800cea8e40 RCX: 0000000000000001 [ 0.310086] RDX: ffffffffffffffff RSI: ffff88800ceaacc0 RDI: 0000000100000003 [ 0.310086] RBP: ffff88800cc4e3e0 R08: 0000000000000000 R09: 0000000000000000 [ 0.310086] R10: 00000000fffedb1d R11: 00000000fffedb1d R12: ffff88800ceda4c0 [ 0.310086] R13: ffff88800cea9500 R14: 0000000000000010 R15: 000000000000000f [ 0.310086] FS: 0000000000000000(0000) GS:ffff8880f39f2000(0000) knlGS:0000000000000000 [ 0.310086] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 0.310086] CR2: 0000000089c402fb CR3: 0000000002c1a000 CR4: 00000000003506f0 [ 0.310086] Call Trace: [ 0.310086] [ 0.310086] ? sched_init_domains+0x58/0xa0 [ 0.310086] sched_init_smp+0x29/0x90 [ 0.310086] kernel_init_freeable+0xa3/0x290 [ 0.310086] ? __pfx_kernel_init+0x10/0x10 [ 0.310086] kernel_init+0x1a/0x1c0 [ 0.310086] ret_from_fork+0x85/0xf0 [ 0.310086] ? __pfx_kernel_init+0x10/0x10 [ 0.310086] ret_from_fork_asm+0x1a/0x30 [ 0.310086] [ 0.310086] Modules linked in: [ 0.310086] CR2: 0000000089c402fb [ 0.310086] ---[ end trace 0000000000000000 ]--- [ 0.310086] RIP: 0010:build_sched_domains+0x627/0x1550 [ 0.310086] Code: 84 75 06 00 00 f3 48 0f bc c0 48 63 f8 89 c0 48 0f a3 05 c4 cf 95 08 0f 83 6c 06 00 00 48 8b 3c fd c0 db 29 82 49 8b 44 24 18 <48> 8b 04 07 48 8b 80 90 00 00 00 48 33 86 90 00 00 00 66 85 c0 0f [ 0.310086] RSP: 0018:ffffc9000001fe60 EFLAGS: 00010247 [ 0.310086] RAX: ffffffff89c402f8 RBX: ffff88800cea8e40 RCX: 0000000000000001 [ 0.310086] RDX: ffffffffffffffff RSI: ffff88800ceaacc0 RDI: 0000000100000003 [ 0.310086] RBP: ffff88800cc4e3e0 R08: 0000000000000000 R09: 0000000000000000 [ 0.310086] R10: 00000000fffedb1d R11: 00000000fffedb1d R12: ffff88800ceda4c0 [ 0.310086] R13: ffff88800cea9500 R14: 0000000000000010 R15: 000000000000000f [ 0.310086] FS: 0000000000000000(0000) GS:ffff8880f39f2000(0000) knlGS:0000000000000000 [ 0.310086] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 0.310086] CR2: 0000000089c402fb CR3: 0000000002c1a000 CR4: 00000000003506f0 [ 0.310086] note: swapper/0[1] exited with irqs disabled [ 0.310091] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 [ 0.311130] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 ]--- -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette