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Date: Thu, 9 May 2013 14:29:18 +0200 (CEST) From: Jiri Kosina <jkosina@...e.cz> To: Frederic Weisbecker <fweisbec@...il.com> Cc: Tony Luck <tony.luck@...el.com>, Borislav Petkov <bp@...en8.de>, linux-kernel@...r.kernel.org, x86@...nel.org Subject: NOHZ: WARNING: at arch/x86/kernel/smp.c:123 native_smp_send_reschedule Hi, I just got the warning below when resuming from hibernation with kernel that has NO_HZ_FULL_ALL=y. This is with topmost commit e0fd9affeb640. [ ... snip ... ] PM: Hibernation mode set to 'shutdown' PM: Marking nosave pages: [mem 0x0009e000-0x000fffff] PM: Marking nosave pages: [mem 0x7c4a1000-0x7c4a6fff] PM: Marking nosave pages: [mem 0x7c5b7000-0x7c60efff] PM: Marking nosave pages: [mem 0x7c6c6000-0x7c9fefff] PM: Basic memory bitmaps created PM: Syncing filesystems ... done. Freezing user space processes ... (elapsed 0.01 seconds) done. PM: Preallocating image memory... done (allocated 194411 pages) PM: Allocated 777644 kbytes in 0.29 seconds (2681.53 MB/s) Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done. Suspending console(s) (use no_console_suspend to debug) mei_me 0000:00:03.0: suspend mei_me 0000:00:03.0: wait hw ready failed. status = 0x0 PM: freeze of devices complete after 406.995 msecs PM: late freeze of devices complete after 0.543 msecs PM: noirq freeze of devices complete after 1.379 msecs Disabling non-boot CPUs ... smpboot: CPU 1 is now offline PM: Creating hibernation image: PM: Need to copy 193377 pages PM: Normal pages needed: 193377 + 1024, available pages: 316026 microcode: CPU0 sig=0x10676, pf=0x80, revision=0x60f Enabling non-boot CPUs ... smpboot: Booting Node 0 Processor 1 APIC 0x1 CPU1 microcode updated early to revision 0x60f, date = 2010-09-29 Disabled fast string operations ------------[ cut here ]------------ WARNING: at arch/x86/kernel/smp.c:123 native_smp_send_reschedule+0x59/0x60() Modules linked in: af_packet tun iptable_mangle xt_DSCP nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables cpufreq_conservative cpufreq_userspace cpufreq_powersave iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant snd_hda_intel snd_hda_codec acpi_cpufreq mperf snd_hwdep kvm_intel kvm snd_pcm iwldvm thinkpad_acpi mac80211 snd_seq sg microcode iwlwifi snd_timer snd_seq_device cfg80211 i2c_i801 pcspkr rfkill lpc_ich e1000e mfd_core snd mei_me mei ptp snd_page_alloc ehci_pci pps_core wmi soundcore ac battery tpm_tis tpm tpm_bios autofs4 uhci_hcd i915 ehci_hcd drm_kms_helper drm i2c_algo_bit video usbcore button usb_common edd fan processor ata_generic thermal thermal_sys CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.9.0-11789-ge0fd9af #1 Hardware name: LENOVO 7470BN2/7470BN2, BIOS 6DET38WW (2.02 ) 12/19/2008 000000000000007b ffff880079851da8 ffffffff81547dde ffff880079851de8 ffffffff8104212b ffff880079851dd8 0000000000000001 ffff88007c28cca0 ffff880079878000 000000010003fb57 0000000000000096 ffff880079851df8 Call Trace: [<ffffffff81547dde>] dump_stack+0x19/0x1b [<ffffffff8104212b>] warn_slowpath_common+0x6b/0xa0 [<ffffffff81042175>] warn_slowpath_null+0x15/0x20 [<ffffffff81026b09>] native_smp_send_reschedule+0x59/0x60 [<ffffffff810774dc>] wake_up_nohz_cpu+0x9c/0xa0 [<ffffffff810529db>] add_timer_on+0xdb/0x110 [<ffffffff8101e4f4>] mce_start_timer+0x64/0x70 [<ffffffff8101e552>] __mcheck_cpu_init_timer+0x52/0x60 [<ffffffff8153dc8e>] mcheck_cpu_init+0x6f/0x111 [<ffffffff8153b3ae>] identify_cpu+0x3cc/0x3f9 [<ffffffff8153b3ed>] identify_secondary_cpu+0x12/0x1d [<ffffffff8153f836>] smp_store_cpu_info+0x3a/0x3c [<ffffffff8153f922>] smp_callin+0xea/0x1c1 [<ffffffff8153fa1d>] start_secondary+0x24/0x97 ---[ end trace 2c2f8914d9cd6bb0 ]--- microcode: CPU1 sig=0x10676, pf=0x80, revision=0x60f CPU1 is up i915 0000:00:02.0: power state changed by ACPI to D0 [ ... snip ... ] -- Jiri Kosina SUSE Labs -- 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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