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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, TVD_SPACE_RATIO,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BEC21C43214 for ; Tue, 10 Aug 2021 13:42:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A2BF26108C for ; Tue, 10 Aug 2021 13:42:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241825AbhHJNnR (ORCPT ); Tue, 10 Aug 2021 09:43:17 -0400 Received: from foss.arm.com ([217.140.110.172]:55776 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241711AbhHJNnE (ORCPT ); Tue, 10 Aug 2021 09:43:04 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E3E75106F; Tue, 10 Aug 2021 06:42:41 -0700 (PDT) Received: from e113632-lin.cambridge.arm.com (e113632-lin.cambridge.arm.com [10.1.194.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id AF1143F70D; Tue, 10 Aug 2021 06:42:40 -0700 (PDT) From: Valentin Schneider To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Cc: Will Deacon , Mark Rutland , Marc Zyngier , Thomas Gleixner , Sebastian Andrzej Siewior , Mel Gorman Subject: [SPLAT 2/3] irqchip/gic-v3-its: Sleeping spinlocks down gic_reserve_range() Date: Tue, 10 Aug 2021 14:41:26 +0100 Message-Id: <20210810134127.1394269-3-valentin.schneider@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210810134127.1394269-1-valentin.schneider@arm.com> References: <20210810134127.1394269-1-valentin.schneider@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ 0.134518] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:35 [ 0.134520] in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 0, name: swapper/1 [ 0.134522] 1 lock held by swapper/1/0: [ 0.134523] #0: ffff008f3624f728 ((lock).lock){+.+.}-{2:2}, at: get_page_from_freelist (mm/page_alloc.c:3673 mm/page_alloc.c:3704 mm/page_alloc.c:4166) [ 0.134533] irq event stamp: 0 [ 0.134534] hardirqs last enabled at (0): 0x0 [ 0.134538] hardirqs last disabled at (0): copy_process (./include/linux/lockdep.h:195 ./include/linux/lockdep.h:202 ./include/linux/lockdep.h:208 ./include/linux/seqlock.h:78 kernel/fork.c:2084) [ 0.134542] softirqs last enabled at (0): copy_process (./include/linux/lockdep.h:195 ./include/linux/lockdep.h:202 ./include/linux/lockdep.h:208 ./include/linux/seqlock.h:78 kernel/fork.c:2084) [ 0.134545] softirqs last disabled at (0): 0x0 [ 0.134547] Preemption disabled at: [ 0.134547] rt_mutex_slowunlock (kernel/locking/rtmutex.c:1223) [ 0.134552] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.14.0-rc4-rt6-torture+ #56 [ 0.134555] Call trace: [ 0.134556] dump_backtrace (arch/arm64/kernel/stacktrace.c:151) [ 0.134558] show_stack (arch/arm64/kernel/stacktrace.c:217) [ 0.134559] dump_stack_lvl (lib/dump_stack.c:106) [ 0.134563] dump_stack (lib/dump_stack.c:113) [ 0.134565] ___might_sleep (kernel/sched/core.c:9306) [ 0.134567] rt_spin_lock (kernel/locking/rtmutex.c:1641 (discriminator 4) kernel/locking/spinlock_rt.c:30 (discriminator 4) kernel/locking/spinlock_rt.c:36 (discriminator 4) kernel/locking/spinlock_rt.c:44 (discriminator 4)) [ 0.134569] get_page_from_freelist (mm/page_alloc.c:3673 mm/page_alloc.c:3704 mm/page_alloc.c:4166) [ 0.134571] __alloc_pages (mm/page_alloc.c:5391) [ 0.134573] alloc_page_interleave (mm/mempolicy.c:2119) [ 0.134576] alloc_pages (mm/mempolicy.c:2249) [ 0.134577] new_slab (mm/slub.c:1740 mm/slub.c:1877 mm/slub.c:1940) [ 0.134580] ___slab_alloc (mm/slub.c:2951) [ 0.134582] __slab_alloc.isra.0 (mm/slub.c:3038) [ 0.134584] kmem_cache_alloc_trace (mm/slub.c:3129 mm/slub.c:3171 mm/slub.c:3188) [ 0.134587] efi_mem_reserve_iomem (drivers/firmware/efi/efi.c:905) [ 0.134590] efi_mem_reserve_persistent (drivers/firmware/efi/efi.c:952) [ 0.134593] its_cpu_init (drivers/irqchip/irq-gic-v3-its.c:3074 drivers/irqchip/irq-gic-v3-its.c:5196) [ 0.134596] gic_starting_cpu (drivers/irqchip/irq-gic.c:798) [ 0.134599] cpuhp_invoke_callback (kernel/cpu.c:180) [ 0.134601] cpuhp_invoke_callback_range (kernel/cpu.c:656) [ 0.134603] notify_cpu_starting (kernel/cpu.c:1270) [ 0.134605] secondary_start_kernel (arch/arm64/kernel/smp.c:243) [ 0.134608] __secondary_switched (arch/arm64/kernel/head.S:661)