In my case this ended up being a bad power supply. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1159065
Title: kernel hard freezes unless processor.max_cstates=1 is used Status in “linux” package in Ubuntu: Confirmed Bug description: My system hard freezes, no response to MagicKeys + REISUB, no error messages in /var/log/syslog or kern.log. Cannot ping or ssh. This happens consistently after running for 24-48 hours. When I use process.max_cstates=1 I have no problems with freezes, but I would like my cpus to enter in deeper cstates for power saving. I've tried kernel versions 3.2, 3.5, and 3.6.9 Hardware: Intel i7-3930k, Motherboard: DX79TO Partial output of dmesg: [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.6.9-030609-generic root=UUID=61abb01f-8268-421b-a83f-e0fcea737f56 ro crashkernel=384M-2G:64M,2G-:128M quiet splash notsc acpi_enforce_resources=lax clocksource=hpet hpet=force acpi=hpet intel_idle.max_cstate=0 processor.max_cstate=1 idle=mwait [ 0.000000] tsc: Kernel compiled with CONFIG_X86_TSC, cannot disable TSC completely [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] __ex_table already sorted, skipping sort [ 0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340 [ 0.000000] Checking aperture... [ 0.000000] No AGP bridge found [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! [ 0.000000] Memory: 16209188k/17301504k available (6894k kernel code, 601880k absent, 490436k reserved, 6299k data, 956k init) [ 0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=16, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU dyntick-idle grace-period acceleration is enabled. [ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=16. [ 0.000000] NR_IRQS:16640 nr_irqs:1216 16 [ 0.000000] Extended CMOS year: 2000 [ 0.000000] Console: colour VGA+ 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] allocated 67108864 bytes of page_cgroup [ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups [ 0.000000] hpet clockevent registered [ 0.000000] tsc: Fast TSC calibration using PIT [ 0.004000] tsc: Detected 3199.972 MHz processor [ 0.004000] Calibrating delay loop... 6361.08 BogoMIPS (lpj=12722176) [ 0.028000] pid_max: default: 32768 minimum: 301 [ 0.028000] Security Framework initialized [ 0.028000] AppArmor: AppArmor initialized [ 0.028000] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes) [ 0.028000] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.032000] Mount-cache hash table entries: 256 [ 0.032000] Initializing cgroup subsys cpuacct [ 0.032000] Initializing cgroup subsys memory [ 0.032000] Initializing cgroup subsys devices [ 0.032000] Initializing cgroup subsys freezer [ 0.032000] Initializing cgroup subsys blkio [ 0.032000] Initializing cgroup subsys perf_event [ 0.032000] Initializing cgroup subsys hugetlb [ 0.032000] CPU: Physical Processor ID: 0 [ 0.032000] CPU: Processor Core ID: 0 [ 0.032000] mce: CPU supports 18 MCE banks [ 0.032000] CPU0: Thermal monitoring enabled (TM1) [ 0.032000] process: using mwait in idle threads [ 0.032000] Last level iTLB entries: 4KB 512, 2MB 0, 4MB 0 [ 0.032000] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32 [ 0.032000] tlb_flushall_shift is 0x5 [ 0.032000] ACPI: Core revision 20120711 [ 0.040000] ftrace: allocating 28053 entries in 110 pages [ 0.052000] dmar: Host address width 40 [ 0.052000] dmar: DRHD base: 0x000000fe901000 flags: 0x0 [ 0.052000] dmar: IOMMU 0: reg_base_addr fe901000 ver 1:0 cap d2008c10ef0462 ecap f0207a [ 0.052000] dmar: DRHD base: 0x000000fe900000 flags: 0x1 [ 0.052000] dmar: IOMMU 1: reg_base_addr fe900000 ver 1:0 cap d2078c106f0462 ecap f020fe [ 0.052000] dmar: RMRR base: 0x000000d8dd9000 end: 0x000000d8dd9fff [ 0.052000] dmar: RMRR base: 0x000000d8ddb000 end: 0x000000d8ddbfff [ 0.052000] Switched APIC routing to physical flat. [ 0.052000] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.092000] smpboot: CPU0: Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz stepping 07 [ 0.092000] Performance Events: PEBS fmt1+, 16-deep LBR, SandyBridge events, Intel PMU driver. [ 0.092000] ... version: 3 [ 0.092000] ... bit width: 48 [ 0.092000] ... generic registers: 4 [ 0.092000] ... value mask: 0000ffffffffffff [ 0.092000] ... max period: 000000007fffffff [ 0.092000] ... fixed-purpose events: 3 [ 0.092000] ... event mask: 000000070000000f [ 0.092000] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter. [ 0.092000] smpboot: Booting Node 0, Processors #1 [ 0.104000] TSC synchronization [CPU#0 -> CPU#1]: [ 0.104000] Measured 487730108 cycles TSC warp between CPUs, turning off TSC clock. [ 0.008000] tsc: Marking TSC unstable due to check_tsc_sync_source failed [ 0.104006] #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 [ 0.216013] Brought up 12 CPUs [ 0.216013] smpboot: Total of 12 processors activated (76333.05 BogoMIPS) [ 0.220013] devtmpfs: initialized [ 0.224014] EVM: security.selinux [ 0.224014] EVM: security.SMACK64 [ 0.224014] EVM: security.capability [ 0.224014] PM: Registering ACPI NVS region [mem 0xd84a9000-0xd858cfff] (933888 bytes) [ 0.224014] PM: Registering ACPI NVS region [mem 0xd89c7000-0xd8ac6fff] (1048576 bytes) [ 0.224014] PM: Registering ACPI NVS region [mem 0xdb704000-0xdb7befff] (765952 bytes) [ 0.224014] dummy: 2) Description: Ubuntu 12.04.2 LTS Release: 12.04 3) Not to crash after 24 hours 4) Hard freezes --- ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MarkForUpload: True NonfreeKernelModules: nvidia Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash Tags: precise running-unity Uname: Linux 3.6.9-030609-generic x86_64 UnreportableReason: This is not an official Ubuntu package. Please remove any third party package and try again. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1159065/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
