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Message-ID: <20141011051627.GB21803@wfg-t540p.sh.intel.com> Date: Sat, 11 Oct 2014 13:16:27 +0800 From: Fengguang Wu <fengguang.wu@...el.com> To: Jiang Liu <jiang.liu@...ux.intel.com> Cc: LKML <linux-kernel@...r.kernel.org>, lkp@...org Subject: [x86, PCI, ACPI] WARNING: CPU: 0 PID: 3 at kernel/rcu/tree.c:2360 rcu_process_callbacks+0x43f/0x531() Hi Jiang, FYI, we noticed the below changes on https://github.com/jiangliu/linux.git ioapic/hotplug_v6 commit e96f3bd3186db57bbde9f4e5c57d8328f7f0ec79 ("x86, PCI, ACPI: Kill private function resource_to_addr() in arch/x86/pci/acpi.c") +------------------------------------------------------+------------+------------+ | | 452b6361c4 | e96f3bd318 | +------------------------------------------------------+------------+------------+ | boot_successes | 20 | 13 | | boot_failures | 0 | 6 | | WARNING:at_kernel/rcu/tree.c:rcu_process_callbacks() | 0 | 6 | | backtrace:smpboot_thread_fn | 0 | 4 | | page_allocation_failure:order:,mode | 0 | 1 | | backtrace:cpu_startup_entry | 0 | 1 | | backtrace:vmalloc | 0 | 1 | | backtrace:SyS_init_module | 0 | 1 | | backtrace:acpi_bus_scan | 0 | 1 | | backtrace:acpi_scan_init | 0 | 1 | | backtrace:acpi_init | 0 | 1 | | backtrace:kernel_init_freeable | 0 | 1 | +------------------------------------------------------+------------+------------+ [ 1.323479] PCI: CLS 0 bytes, default 64 [ 1.325701] Trying to unpack rootfs image as initramfs... [ 1.852166] ------------[ cut here ]------------ [ 1.853652] WARNING: CPU: 0 PID: 3 at kernel/rcu/tree.c:2360 rcu_process_callbacks+0x43f/0x531() [ 1.856015] Modules linked in: [ 1.856015] CPU: 0 PID: 3 Comm: ksoftirqd/0 Not tainted 3.17.0-rc6-00063-g1e527ce #1 [ 1.856015] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1.856015] 0000000000000000 ffff8800136efd58 ffffffff819d5e8b 0000000000000000 [ 1.856015] ffff8800136efd90 ffffffff810e7670 ffffffff8112f441 ffffffff82057400 [ 1.856015] 0000000000000004 0000000000000000 0000000000000246 ffff8800136efda0 [ 1.856015] Call Trace: [ 1.856015] [<ffffffff819d5e8b>] dump_stack+0x4d/0x66 [ 1.856015] [<ffffffff810e7670>] warn_slowpath_common+0x7f/0x98 [ 1.856015] [<ffffffff8112f441>] ? rcu_process_callbacks+0x43f/0x531 [ 1.856015] [<ffffffff810e773c>] warn_slowpath_null+0x1a/0x1c [ 1.856015] [<ffffffff8112f441>] rcu_process_callbacks+0x43f/0x531 [ 1.856015] [<ffffffff810eac98>] __do_softirq+0x131/0x2e4 [ 1.856015] [<ffffffff810eae74>] run_ksoftirqd+0x29/0x65 [ 1.856015] [<ffffffff81102c0a>] smpboot_thread_fn+0x194/0x1b2 [ 1.856015] [<ffffffff81102a76>] ? SyS_setgroups+0x106/0x106 [ 1.856015] [<ffffffff810ffd7b>] kthread+0xe4/0xec [ 1.856015] [<ffffffff810ffc97>] ? kthread_create_on_node+0x18c/0x18c [ 1.856015] [<ffffffff819dd27c>] ret_from_fork+0x7c/0xb0 [ 1.856015] [<ffffffff810ffc97>] ? kthread_create_on_node+0x18c/0x18c [ 1.856015] ---[ end trace c038ce2226e5515b ]--- [ 2.010076] Freeing initrd memory: 4692K (ffff880013b5b000 - ffff880013ff0000) Thanks, Fengguang -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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