Package: src:linux Version: 3.16.7-ckt11-1+deb8u2 Severity: normal File: /boot/vmlinuz-3.16.0-4-amd64
Hello, I am regularly getting messages of the following form from the kernel: | Jul 23 06:46:30 ebox kernel: [ 1.432009] perf interrupt took too long (3688 > 2500), lowering kernel.perf_event_max_sample_rate to 50000 | Jul 23 07:01:11 ebox kernel: [ 883.330989] NMI handler (perf_event_nmi_handler) took too long to run: xxx msecs where xxx is typically multiple msecs. I am not using perf, and this happens even right after boot (see the timestamp above). This looks as if it is related to http://linux-kernel.2935.n7.nabble.com/scheduling-while-atomic-amp-hang-td679062i20.html. Best, -Nikolaus -- Package-specific info: ** Version: Linux version 3.16.0-4-amd64 ([email protected]) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 SMP Debian 3.16.7-ckt11-1+deb8u2 (2015-07-17) ** Command line: BOOT_IMAGE=/root/boot/vmlinuz-3.16.0-4-amd64 root=/dev/sda ro rootflags=subvol=root console=ttyS0,19200n8 ** Not tainted ** Kernel log: [ 1.376821] systemd[1]: Inserted module 'autofs4' [ 1.377948] systemd[1]: Set hostname to <ebox>. [ 1.432009] perf interrupt took too long (3688 > 2500), lowering kernel.perf_event_max_sample_rate to 50000 [ 1.438130] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory. [ 1.441345] systemd[1]: Expecting device dev-ttyS0.device... [ 1.443868] systemd[1]: Starting Forward Password Requests to Wall Directory Watch. [ 1.445187] systemd[1]: Started Forward Password Requests to Wall Directory Watch. [ 1.446518] systemd[1]: Starting Remote File Systems (Pre). [ 1.448749] systemd[1]: Reached target Remote File Systems (Pre). [ 1.449796] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point. [ 1.453026] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ 1.455141] systemd[1]: Starting Encrypted Volumes. [ 1.457297] systemd[1]: Reached target Encrypted Volumes. [ 1.458288] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch. [ 1.459711] systemd[1]: Started Dispatch Password Requests to Console Directory Watch. [ 1.460998] systemd[1]: Starting Paths. [ 1.462654] systemd[1]: Reached target Paths. [ 1.463391] systemd[1]: Expecting device dev-sdb.device... [ 1.465424] systemd[1]: Expecting device dev-sda.device... [ 1.467370] systemd[1]: Starting Root Slice. [ 1.469176] systemd[1]: Created slice Root Slice. [ 1.469957] systemd[1]: Starting User and Session Slice. [ 1.472220] systemd[1]: Created slice User and Session Slice. [ 1.473229] systemd[1]: Starting Delayed Shutdown Socket. [ 1.475477] systemd[1]: Listening on Delayed Shutdown Socket. [ 1.476481] systemd[1]: Starting /dev/initctl Compatibility Named Pipe. [ 1.479219] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe. [ 1.480493] systemd[1]: Starting Journal Socket (/dev/log). [ 1.482755] systemd[1]: Listening on Journal Socket (/dev/log). [ 1.483823] systemd[1]: Starting udev Kernel Socket. [ 1.485828] systemd[1]: Listening on udev Kernel Socket. [ 1.486724] systemd[1]: Starting udev Control Socket. [ 1.488792] systemd[1]: Listening on udev Control Socket. [ 1.489686] systemd[1]: Starting Journal Socket. [ 1.491529] systemd[1]: Listening on Journal Socket. [ 1.492424] systemd[1]: Starting System Slice. [ 1.494513] systemd[1]: Created slice System Slice. [ 1.495329] systemd[1]: Started File System Check on Root Device. [ 1.496339] systemd[1]: Starting system-systemd\x2dfsck.slice. [ 1.498750] systemd[1]: Created slice system-systemd\x2dfsck.slice. [ 1.499872] systemd[1]: Starting system-serial\x2dgetty.slice. [ 1.502153] systemd[1]: Created slice system-serial\x2dgetty.slice. [ 1.503216] systemd[1]: Starting Increase datagram queue length... [ 1.507085] systemd[1]: Starting Load Kernel Modules... [ 1.509518] systemd[1]: Starting Create list of required static device nodes for the current kernel... [ 1.513371] systemd[1]: Starting udev Coldplug all Devices... [ 1.518738] systemd[1]: Mounting Huge Pages File System... [ 1.520698] tsc: Refined TSC clocksource calibration: 2800.076 MHz [ 1.524858] fuse init (API version 7.23) [ 1.529101] systemd[1]: Started Set Up Additional Binary Formats. [ 1.530156] systemd[1]: Mounting POSIX Message Queue File System... [ 1.533151] systemd[1]: Mounting Debug File System... [ 1.535665] systemd[1]: Starting Slices. [ 1.539506] systemd[1]: Reached target Slices. [ 1.542982] systemd[1]: Starting Remount Root and Kernel File Systems... [ 1.550397] systemd[1]: Started Increase datagram queue length. [ 1.553028] systemd[1]: Started Load Kernel Modules. [ 1.556443] systemd[1]: Started Create list of required static device nodes for the current kernel. [ 1.564616] systemd[1]: Starting Create Static Device Nodes in /dev... [ 1.572570] BTRFS info (device sda): disk space caching is enabled [ 1.575423] systemd[1]: Mounted Configuration File System. [ 1.579904] systemd[1]: Mounting FUSE Control File System... [ 1.586042] systemd[1]: Starting Apply Kernel Variables... [ 1.591751] systemd[1]: Starting Syslog Socket. [ 1.596204] systemd[1]: Listening on Syslog Socket. [ 1.598167] systemd[1]: Starting Journal Service... [ 1.601993] systemd[1]: Started Journal Service. [ 1.652649] systemd-udevd[178]: starting version 215 [ 1.712918] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2 [ 1.714457] ACPI: Power Button [PWRF] [ 1.726485] piix4_smbus 0000:00:01.3: SMBus Host Controller at 0x700, revision 0 [ 1.731859] [drm] Initialized drm 1.1.0 20060810 [ 1.737006] input: PC Speaker as /devices/platform/pcspkr/input/input3 [ 1.785301] AVX version of gcm_enc/dec engaged. [ 1.807396] Adding 262140k swap on /dev/sdb. Priority:-1 extents:1 across:262140k FS [ 1.817676] ppdev: user-space parallel port driver [ 1.819850] alg: No test for __gcm-aes-aesni (__driver-gcm-aes-aesni) [ 1.828955] random: nonblocking pool is initialized [ 1.856274] alg: No test for crc32 (crc32-pclmul) [ 1.937561] systemd-journald[177]: Received request to flush runtime journal from PID 1 [ 2.409036] ip_tables: (C) 2000-2006 Netfilter Core Team [ 2.471744] nf_conntrack version 0.5.0 (8002 buckets, 32008 max) [ 2.482590] tun: Universal TUN/TAP device driver, 1.6 [ 2.483417] tun: (C) 1999-2004 Max Krasnyansky <[email protected]> [ 2.582265] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input4 [ 2.628009] perf interrupt took too long (7140 > 5000), lowering kernel.perf_event_max_sample_rate to 25000 [ 3.561638] perf interrupt took too long (10299 > 10000), lowering kernel.perf_event_max_sample_rate to 12500 [ 6.804009] perf interrupt took too long (22551 > 20000), lowering kernel.perf_event_max_sample_rate to 6250 [ 883.330989] perf interrupt took too long (40417 > 38461), lowering kernel.perf_event_max_sample_rate to 3250 [ 3335.619344] perf interrupt took too long (77281 > 71428), lowering kernel.perf_event_max_sample_rate to 1750 [ 5318.728154] perf interrupt took too long (143697 > 125000), lowering kernel.perf_event_max_sample_rate to 1000 [ 5718.600013] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 1.213 msecs [10577.262551] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 1.234 msecs [11242.180440] perf interrupt took too long (254126 > 250000), lowering kernel.perf_event_max_sample_rate to 500 [13235.256007] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 143.779 msecs [13235.256007] perf interrupt took too long (1399797 > 500000), lowering kernel.perf_event_max_sample_rate to 250 [14477.800068] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 199.616 msecs [15361.013057] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 201.356 msecs [21339.824010] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 229.600 msecs [22534.624019] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 319.880 msecs ** Model information sys_vendor: QEMU product_name: Standard PC (i440FX + PIIX, 1996) product_version: pc-i440fx-2.3 chassis_vendor: QEMU chassis_version: pc-i440fx-2.3 bios_vendor: SeaBIOS bios_version: rel-1.8.1-0-g4adadbd-20150316_085822-nilsson.home.kraxel.org ** Loaded modules: xt_nat xt_LOG xt_limit xt_conntrack ipt_REJECT iptable_filter xt_REDIRECT xt_tcpudp xt_recent iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat tun nf_conntrack ip_tables x_tables crc32_pclmul ghash_clmulni_intel ppdev aesni_intel aes_x86_64 lrw gf128mul glue_helper ttm ablk_helper drm_kms_helper cryptd evdev psmouse serio_raw pcspkr drm i2c_piix4 i2c_core parport_pc processor parport thermal_sys button fuse autofs4 btrfs xor raid6_pq sg sd_mod crc_t10dif crct10dif_generic sr_mod cdrom ata_generic virtio_scsi virtio_net crct10dif_pclmul crct10dif_common crc32c_intel ata_piix floppy libata scsi_mod virtio_pci virtio_ring virtio ** PCI devices: not available ** USB devices: not available -- System Information: Debian Release: 8.1 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 3.16.0-4-amd64 (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages linux-image-3.16.0-4-amd64 depends on: ii debconf [debconf-2.0] 1.5.56 ii initramfs-tools [linux-initramfs-tool] 0.120 ii kmod 18-3 ii linux-base 3.5 Versions of packages linux-image-3.16.0-4-amd64 recommends: ii firmware-linux-free 3.3 ii irqbalance 1.0.6-3 Versions of packages linux-image-3.16.0-4-amd64 suggests: pn debian-kernel-handbook <none> ii grub-pc 2.02~beta2-22 pn linux-doc-3.16 <none> Versions of packages linux-image-3.16.0-4-amd64 is related to: pn firmware-atheros <none> pn firmware-bnx2 <none> pn firmware-bnx2x <none> pn firmware-brcm80211 <none> pn firmware-intelwimax <none> pn firmware-ipw2x00 <none> pn firmware-ivtv <none> pn firmware-iwlwifi <none> pn firmware-libertas <none> pn firmware-linux <none> pn firmware-linux-nonfree <none> pn firmware-myricom <none> pn firmware-netxen <none> pn firmware-qlogic <none> pn firmware-ralink <none> pn firmware-realtek <none> pn xen-hypervisor <none> -- debconf information: linux-image-3.16.0-4-amd64/prerm/removing-running-kernel-3.16.0-4-amd64: true linux-image-3.16.0-4-amd64/postinst/depmod-error-initrd-3.16.0-4-amd64: false linux-image-3.16.0-4-amd64/postinst/mips-initrd-3.16.0-4-amd64: -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". 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