From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 EBD54193425 for ; Sat, 14 Dec 2024 17:36:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734197770; cv=none; b=iLTCgO7CijJIlkZMm5jl6LQQOCOCsOoDwcRP4tpyFEuBDhOIdr9axYnvOU5JZ1W8S7e2L4g98QmOlhgpDyPRZ+htLLOT5JZxtQWvXcM0C/OBvx2iV69v8zX22s62Ghat5XcFfCQCQBJ/DwjGzT77XRlsx01LNYaxSGNXykkSqcA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734197770; c=relaxed/simple; bh=T0XboCLi33hcXHbovIiOUO3Y6978HPciv6+UKqshpwM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=SXx323XxP0M9zVok8ak5hP9OUoewf1Vk8fTStZyn2Pb23vUUKGkd0rix0AyencbRZAz7WR/AAlPeSGbtWtXesw5GGkFTTP0n/it32JTORd0di60t8fB6xNBHCU8D+3ofugY8F7KsPhcwGSvJL/NSeUj1WwCVswtaQMlwdXxHuG0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eFdCoRtk; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="eFdCoRtk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4CA31C4CED1; Sat, 14 Dec 2024 17:36:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734197769; bh=T0XboCLi33hcXHbovIiOUO3Y6978HPciv6+UKqshpwM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=eFdCoRtkm/AfEcKwUuQsgEyY05/qvRRnlJ5uLpK93I+YqNJlOMn7ViAyMPDrK4AiP K0RNgEDTDwxGBE0V7SALWjAVxAlx3BsMdsIz06smxSK4u/2KEojogOBVPs4K2nsFlG NHUUbFfdLG5ldbUe+xDOhKeSMhWA+z1H5BZpZzJ+E1u+rsoloo2D+T1SH2MaXunTR3 xdErP76VymRLLvWzrElGhqKyahFLfZtU2kh75mPYN+TQlsG0i6EedccV7AH2WPWDx5 L27V93hX6b5Gx+1U2hcK1zG7vHKSGLSPNRVOMFF9bw9A0ogeRDu8kiY9Na6cJPVZQR uxrXMDcqWf4yA== Date: Sat, 14 Dec 2024 12:36:07 -0500 From: Sasha Levin To: Borislav Petkov Cc: Linus Torvalds , x86-ml , lkml Subject: Re: [GIT PULL] sched/urgent for v6.13-rc3 Message-ID: References: <20241209094822.GAZ1a85tp2J_T7_Ctd@fat_crate.local> 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=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20241209094822.GAZ1a85tp2J_T7_Ctd@fat_crate.local> On Mon, Dec 09, 2024 at 10:48:22AM +0100, Borislav Petkov wrote: >Hi Linus, > >please pull the sched/urgent lineup for v6.13-rc3. Hey Boris, I'm a bit late to this party, but I've started seeing the following warning. I'm not 100% sure that this PR is the culprit because Linus ended up pulling it before I could run tests on it, but I haven't seen this warning before. [ 1107.003243] ------------[ cut here ]------------ [ 1107.010677] WARNING: CPU: 0 PID: 16 at kernel/sched/deadline.c:1995 enqueue_dl_entity+0x4a8/0x570 [ 1107.021252] Modules linked in: crct10dif_ce sm3_ce sm3 sha3_ce sha512_ce sha512_arm64 fuse drm backlight ip_tables x_tables [last unloaded: ftrace_direct] [ 1107.056578] CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.13.0-rc2 #1 [ 1107.064302] Hardware name: linux,dummy-virt (DT) [ 1107.071887] pstate: a24020c9 (NzCv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 1107.080224] pc : enqueue_dl_entity+0x4a8/0x570 [ 1107.086456] lr : return_to_handler+0x0/0x48 [ 1107.093564] sp : ffff8000800d3a40 [ 1107.098945] x29: ffff8000800d3a40 x28: fff00000ff6e8d80 x27: 0000000000000000 [ 1107.112664] x26: 0000000000000001 x25: 0000000000000000 x24: 0000000000000048 [ 1107.125440] x23: fff00000ff6c6d80 x22: 0000000000000001 x21: 000000000016e360 [ 1107.137742] x20: 0000000000000001 x19: fff00000ff6c76e8 x18: 0000000000000000 [ 1107.150485] x17: 0000000000000000 x16: ffff800080008000 x15: 0000000000000000 [ 1107.163991] x14: fff00000ff6e8e00 x13: 0000000000000001 x12: 0000000000002229 [ 1107.174756] x11: ffffb0af24c4a670 x10: ffff8000800d3a70 x9 : ffffb0af227176d0 [ 1107.187747] x8 : ffff8000800d38d8 x7 : 0000000002d37310 x6 : fff00000c6d27500 [ 1107.200948] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 [ 1107.215525] x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000001 [ 1107.228386] Call trace: [ 1107.233927] enqueue_dl_entity+0x4a8/0x570 (P) [ 1107.240669] dl_server_start+0x4c/0x138 (F) [ 1107.246980] enqueue_task_fair+0x128/0x4b0 (F) [ 1107.253826] enqueue_task+0x44/0x80 (F) [ 1107.259958] activate_task+0x70/0x90 (F) [ 1107.265928] attach_task+0x54/0x88 (F) [ 1107.272053] sched_balance_rq+0x714/0xc18 (F) [ 1107.278502] sched_balance_newidle.isra.0+0x1c0/0x408 (F) [ 1107.285769] pick_next_task_fair+0x58/0x310 (F) [ 1107.292581] __schedule+0x13c/0x918 (F) [ 1107.298583] schedule+0x38/0x110 [ 1107.304448] smpboot_thread_fn+0x90/0x208 (F) [ 1107.310822] kthread+0x104/0x118 [ 1107.317269] ret_from_fork+0x10/0x20 [ 1107.323922] ---[ end trace 0000000000000000 ]--- [ 1107.331245] ------------[ cut here ]------------ [ 1107.337711] WARNING: CPU: 0 PID: 16 at kernel/sched/deadline.c:1971 enqueue_dl_entity+0x4dc/0x570 [ 1107.346972] Modules linked in: crct10dif_ce sm3_ce sm3 sha3_ce sha512_ce sha512_arm64 fuse drm backlight ip_tables x_tables [last unloaded: ftrace_direct] [ 1107.379887] CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Tainted: G W 6.13.0-rc2 #1 [ 1107.388490] Tainted: [W]=WARN [ 1107.394103] Hardware name: linux,dummy-virt (DT) [ 1107.400895] pstate: a24020c9 (NzCv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 1107.410286] pc : enqueue_dl_entity+0x4dc/0x570 [ 1107.417196] lr : enqueue_dl_entity+0x21c/0x570 [ 1107.423700] sp : ffff8000800d3a40 [ 1107.428962] x29: ffff8000800d3a40 x28: fff00000ff6e8d80 x27: 0000000000000000 [ 1107.441295] x26: 0000000000000001 x25: 0000000000000000 x24: 0000000000000048 [ 1107.453709] x23: fff00000ff6c6d80 x22: 0000000000000001 x21: 000000000016e360 [ 1107.465918] x20: fff00000ff6c6d80 x19: fff00000ff6c76e8 x18: 0000000000000000 [ 1107.478257] x17: 0000000000000000 x16: ffff800080008000 x15: 0000000000000000 [ 1107.490615] x14: fff00000ff6e8e00 x13: 0000000000000001 x12: 0000000000002229 [ 1107.502996] x11: ffffb0af24c4a670 x10: ffff8000800d3a40 x9 : 0000000000000001 [ 1107.515024] x8 : 000000003b9aca00 x7 : 00000000000cf95d x6 : 00000000000ee6b2 [ 1107.527426] x5 : fff00000ff6c76e8 x4 : 000000003b9aca00 x3 : 000000003b9aca00 [ 1107.541958] x2 : 0000000033e57787 x1 : 0000002000000000 x0 : 0000000000000001 [ 1107.555125] Call trace: [ 1107.560909] enqueue_dl_entity+0x4dc/0x570 (P) [ 1107.568530] dl_server_start+0x4c/0x138 (F) [ 1107.574623] enqueue_task_fair+0x128/0x4b0 (F) [ 1107.580979] enqueue_task+0x44/0x80 (F) [ 1107.586877] activate_task+0x70/0x90 (F) [ 1107.592854] attach_task+0x54/0x88 (F) [ 1107.598655] sched_balance_rq+0x714/0xc18 (F) [ 1107.605092] sched_balance_newidle.isra.0+0x1c0/0x408 (F) [ 1107.612589] pick_next_task_fair+0x58/0x310 (F) [ 1107.619724] __schedule+0x13c/0x918 (F) [ 1107.626871] schedule+0x38/0x110 [ 1107.633403] smpboot_thread_fn+0x90/0x208 (F) [ 1107.641197] kthread+0x104/0x118 [ 1107.647508] ret_from_fork+0x10/0x20 [ 1107.653843] ---[ end trace 0000000000000000 ]---