From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C8EEECAAD5 for ; Fri, 2 Sep 2022 08:37:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235494AbiIBIhb (ORCPT ); Fri, 2 Sep 2022 04:37:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37786 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235897AbiIBIhQ (ORCPT ); Fri, 2 Sep 2022 04:37:16 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 33BDDDEF2 for ; Fri, 2 Sep 2022 01:36:31 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id D9678B82A15 for ; Fri, 2 Sep 2022 08:36:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 8E933C433D7 for ; Fri, 2 Sep 2022 08:36:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1662107788; bh=VaCKPPKJxy2pciFNT96gxT2F7TKJcAH+V9q+W/Ub4OI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Z8fRsX1MflWdWMMXTbIPWXx/hfEIF/JgT5NobxUBeQlerCE5f/JGzLu/OpDSRNccj qPv4ci5QIdscIPM30kX7OvX9U5sE911MhP7+8irQxF0Ye+Nsi2W7Va2jnZeBQmmqHB DYIoTBQtXhuTLwsCzYZX8/mWsF3ZMqvN8+5wjgO9vxoPhoApbTQRPRyCb/fzBG5ytU Lvgf0HqQEj6bXZBjSsqheDCC/RIliyKlemsw1hnC83REGtFXcdebmtb9NqzuQvmAal fRrElC3/7AsXKA9rv5ZYHwA45frgG7cLNds7HINadqVYMLQz1p/SLO0xoJ4/0VwlvK YP/mpQfYuTSDQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 78D92C433E9; Fri, 2 Sep 2022 08:36:28 +0000 (UTC) From: bugzilla-daemon@kernel.org To: kvm@vger.kernel.org Subject: [Bug 216388] On Host, kernel errors in KVM, on guests, it shows CPU stalls Date: Fri, 02 Sep 2022 08:36:28 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Product: Virtualization X-Bugzilla-Component: kvm X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: nanook@eskimo.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D216388 --- Comment #11 from Robert Dinse (nanook@eskimo.com) --- Well still happening with gcc-12.2.0 but seems to be somewhat less frequent. [ 7.092312] rcu: INFO: rcu_sched detected expedited stalls on CPUs/tasks= : { 4-... } 3 jiffies s: 389 root: 0x10/. [ 7.092329] rcu: blocking rcu_node structures (internal RCU debug): [ 7.092332] Task dump for CPU 4: [ 7.092334] task:modprobe state:R running task stack: 0 p= id: 1502 ppid: 8 flags:0x0000400a [ 7.092338] Call Trace: [ 7.092344] [ 7.092347] ? __wake_up_common_lock+0x87/0xc0 [ 7.092355] ? sysvec_apic_timer_interrupt+0x90/0xa0 [ 7.092361] ? insn_get_prefixes+0x1f1/0x440 [ 7.092365] ? load_new_mm_cr3+0x7f/0xe0 [ 7.092368] ? cpumask_any_but+0x35/0x50 [ 7.092372] ? x2apic_send_IPI_allbutself+0x2f/0x40 [ 7.092375] ? do_sync_core+0x2a/0x30 [ 7.092379] ? cpumask_next+0x23/0x30 [ 7.092381] ? smp_call_function_many_cond+0xea/0x370 [ 7.092386] ? text_poke_memset+0x20/0x20 [ 7.092389] ? arch_unregister_cpu+0x50/0x50 [ 7.092394] ? __fscache_acquire_cookie+0x4f4/0x500 [fscache] [ 7.092407] ? on_each_cpu_cond_mask+0x1d/0x30 [ 7.092409] ? text_poke_bp_batch+0xaf/0x210 [ 7.092412] ? __traceiter_fscache_volume+0x60/0x60 [fscache] [ 7.092421] ? __fscache_acquire_cookie+0x4f4/0x500 [fscache] [ 7.092429] ? __fscache_acquire_cookie+0x4f4/0x500 [fscache] [ 7.092438] ? text_poke_bp+0x49/0x70 [ 7.092440] ? __static_call_transform+0x7f/0x120 [ 7.092442] ? arch_static_call_transform+0x87/0xa0 [ 7.092446] ? __static_call_init+0x167/0x210 [ 7.092450] ? static_call_module_notify+0x13e/0x1a0 [ 7.092452] ? blocking_notifier_call_chain_robust+0x72/0xd0 [ 7.092456] ? load_module+0x2068/0x25e0 [ 7.092459] ? ima_post_read_file+0xd5/0x100 [ 7.092464] ? __do_sys_finit_module+0xbd/0x130 [ 7.092466] ? __do_sys_finit_module+0xbd/0x130 [ 7.092469] ? __x64_sys_finit_module+0x18/0x20 [ 7.092470] ? do_syscall_64+0x5b/0x80 [ 7.092474] ? ksys_mmap_pgoff+0x108/0x250 [ 7.092478] ? do_syscall_64+0x67/0x80 [ 7.092480] ? exit_to_user_mode_prepare+0x41/0x1e0 [ 7.092485] ? syscall_exit_to_user_mode+0x1b/0x40 [ 7.092487] ? do_syscall_64+0x67/0x80 [ 7.092489] ? do_syscall_64+0x67/0x80 [ 7.092492] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 7.092496] --=20 You may reply to this email to add a comment. 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