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 DD013C4332F for ; Thu, 9 Nov 2023 19:30:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344567AbjKITac (ORCPT ); Thu, 9 Nov 2023 14:30:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54966 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230150AbjKITaa (ORCPT ); Thu, 9 Nov 2023 14:30:30 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 81DF63C14 for ; Thu, 9 Nov 2023 11:30:28 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPS id 102BFC433C8; Thu, 9 Nov 2023 19:30:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1699558228; bh=phixewqizGe+SBDzZcFJRD1v4skCnp3xVsHaSY0lgYw=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=huSZHBmEaowJqPBfCijYdwP27Yg2gGZpPEiF0Vd53KsJbxGmK3xVIMbbtzBUiWXAU j/PviM/cw/JkiczVOVrUspBfiAiDse0qJWJmJ/VyPG3uwLIg09qonzwNkEfeKHH3Tk iJLgS1eHUEecuH2IRfMqQyueXTo0uDBUTQpyZqR0PkcH1KYI0GD+q1+96C2tY44PDX fMlifMaNls50CWBjXKUpwtUPWNlRaxTPj+OKBC7joc92E0uV+Ungx4wOXeZF+tN9br 68Sj4zCpY7DAPcZkXlpi3uAyK4xXfuXSuiciVWl/HmuCFGJTXjIStkSi3w2cyiMrmR +nFYB5UMJ/ZNQ== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id E865FC3274C; Thu, 9 Nov 2023 19:30:27 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH -fixes v2] drivers: perf: Do not broadcast to other cpus when starting a counter From: patchwork-bot+linux-riscv@kernel.org Message-Id: <169955822794.13763.6368866008257927086.git-patchwork-notify@kernel.org> Date: Thu, 09 Nov 2023 19:30:27 +0000 References: <20231026084010.11888-1-alexghiti@rivosinc.com> In-Reply-To: <20231026084010.11888-1-alexghiti@rivosinc.com> To: Alexandre Ghiti Cc: linux-riscv@lists.infradead.org, atishp@atishpatra.org, anup@brainfault.org, will@kernel.org, mark.rutland@arm.com, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, ajones@ventanamicro.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, cleger@rivosinc.com, peterlin@andestech.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello: This patch was applied to riscv/linux.git (for-next) by Palmer Dabbelt : On Thu, 26 Oct 2023 10:40:10 +0200 you wrote: > This command: > > $ perf record -e cycles:k -e instructions:k -c 10000 -m 64M dd if=/dev/zero of=/dev/null count=1000 > > gives rise to this kernel warning: > > [ 444.364395] WARNING: CPU: 0 PID: 104 at kernel/smp.c:775 smp_call_function_many_cond+0x42c/0x436 > [ 444.364515] Modules linked in: > [ 444.364657] CPU: 0 PID: 104 Comm: perf-exec Not tainted 6.6.0-rc6-00051-g391df82e8ec3-dirty #73 > [ 444.364771] Hardware name: riscv-virtio,qemu (DT) > [ 444.364868] epc : smp_call_function_many_cond+0x42c/0x436 > [ 444.364917] ra : on_each_cpu_cond_mask+0x20/0x32 > [ 444.364948] epc : ffffffff8009f9e0 ra : ffffffff8009fa5a sp : ff20000000003800 > [ 444.364966] gp : ffffffff81500aa0 tp : ff60000002b83000 t0 : ff200000000038c0 > [ 444.364982] t1 : ffffffff815021f0 t2 : 000000000000001f s0 : ff200000000038b0 > [ 444.364998] s1 : ff60000002c54d98 a0 : ff60000002a73940 a1 : 0000000000000000 > [ 444.365013] a2 : 0000000000000000 a3 : 0000000000000003 a4 : 0000000000000100 > [ 444.365029] a5 : 0000000000010100 a6 : 0000000000f00000 a7 : 0000000000000000 > [ 444.365044] s2 : 0000000000000000 s3 : ffffffffffffffff s4 : ff60000002c54d98 > [ 444.365060] s5 : ffffffff81539610 s6 : ffffffff80c20c48 s7 : 0000000000000000 > [ 444.365075] s8 : 0000000000000000 s9 : 0000000000000001 s10: 0000000000000001 > [ 444.365090] s11: ffffffff80099394 t3 : 0000000000000003 t4 : 00000000eac0c6e6 > [ 444.365104] t5 : 0000000400000000 t6 : ff60000002e010d0 > [ 444.365120] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003 > [ 444.365226] [] smp_call_function_many_cond+0x42c/0x436 > [ 444.365295] [] on_each_cpu_cond_mask+0x20/0x32 > [ 444.365311] [] pmu_sbi_ctr_start+0x7a/0xaa > [ 444.365327] [] riscv_pmu_start+0x48/0x66 > [ 444.365339] [] perf_adjust_freq_unthr_context+0x196/0x1ac > [ 444.365356] [] perf_event_task_tick+0x78/0x8c > [ 444.365368] [] scheduler_tick+0xe6/0x25e > [ 444.365383] [] update_process_times+0x80/0x96 > [ 444.365398] [] tick_sched_handle+0x26/0x52 > [ 444.365410] [] tick_sched_timer+0x50/0x98 > [ 444.365422] [] __hrtimer_run_queues+0x126/0x18a > [ 444.365433] [] hrtimer_interrupt+0xce/0x1da > [ 444.365444] [] riscv_timer_interrupt+0x30/0x3a > [ 444.365457] [] handle_percpu_devid_irq+0x80/0x114 > [ 444.365470] [] generic_handle_domain_irq+0x1c/0x2a > [ 444.365483] [] riscv_intc_irq+0x2e/0x46 > [ 444.365497] [] handle_riscv_irq+0x4a/0x74 > [ 444.365521] [] do_irq+0x7c/0x7e > [ 444.365796] ---[ end trace 0000000000000000 ]--- > > [...] Here is the summary with links: - [-fixes,v2] drivers: perf: Do not broadcast to other cpus when starting a counter https://git.kernel.org/riscv/c/61e3d993c8bd You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html