Bruno Wolff III wrote: > You might see if 431882 looks to be the same bug. If it is then you will at > least have a way to tell if things didn't work correctly early in the boot > process so that you can reboot right away. > I looked at my /var/log/messages and I see a "CPU 1 Not Responding". Could this indicate that my hardware, the CPU, has actually lost one of the two cores due to some electronic failure? (I had a Ubuntu 7.x CD laying around, i booted w/ it (but did not install anything), and it too showed just 1 core.) May be I have a chip failure of some type? Gautam Mar 27 11:20:02 zadapi-L kernel: CPU 0 irqstacks, hard=c07a9000 soft=c0789000 Mar 27 11:20:02 zadapi-L kernel: PID hash table entries: 4096 (order: 12, 16384 bytes) Mar 27 11:20:02 zadapi-L kernel: Detected 2109.586 MHz processor. Mar 27 11:20:02 zadapi-L kernel: Console: colour VGA+ 80x25 Mar 27 11:20:02 zadapi-L kernel: console [tty0] enabled Mar 27 11:20:02 zadapi-L kernel: Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) Mar 27 11:20:02 zadapi-L kernel: Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) Mar 27 11:20:02 zadapi-L kernel: Memory: 3044772k/3079040k available (2187k kernel code, 33064k reserved, 1118k data, 280k init, 2161536k highmem) Mar 27 11:20:02 zadapi-L kernel: virtual kernel memory layout: Mar 27 11:20:02 zadapi-L kernel: fixmap : 0xffc53000 - 0xfffff000 (3760 kB) Mar 27 11:20:02 zadapi-L kernel: pkmap : 0xff800000 - 0xffc00000 (4096 kB) Mar 27 11:20:02 zadapi-L kernel: vmalloc : 0xf8800000 - 0xff7fe000 ( 111 MB) Mar 27 11:20:02 zadapi-L kernel: lowmem : 0xc0000000 - 0xf8000000 ( 896 MB) Mar 27 11:20:02 zadapi-L kernel: .init : 0xc0740000 - 0xc0786000 ( 280 kB) Mar 27 11:20:02 zadapi-L kernel: .data : 0xc0622d15 - 0xc073a544 (1118 kB) Mar 27 11:20:02 zadapi-L kernel: .text : 0xc0400000 - 0xc0622d15 (2187 kB) Mar 27 11:20:02 zadapi-L kernel: Checking if this processor honours the WP bit even in supervisor mode... Ok. Mar 27 11:20:02 zadapi-L kernel: SLUB: Genslabs=22, HWalign=64, Order=0-1, MinObjects=4, CPUs=2, Nodes=1 Mar 27 11:20:02 zadapi-L kernel: Calibrating delay using timer specific routine.. 4222.40 BogoMIPS (lpj=2111203) Mar 27 11:20:02 zadapi-L kernel: Security Framework v1.0.0 initialized Mar 27 11:20:02 zadapi-L kernel: SELinux: Initializing. Mar 27 11:20:02 zadapi-L kernel: selinux_register_security: Registering secondary module capability Mar 27 11:20:02 zadapi-L kernel: Capability LSM initialized as secondary Mar 27 11:20:02 zadapi-L kernel: Mount-cache hash table entries: 512 Mar 27 11:20:02 zadapi-L kernel: CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) Mar 27 11:20:02 zadapi-L kernel: CPU: L2 Cache: 512K (64 bytes/line) Mar 27 11:20:02 zadapi-L kernel: CPU 0(2) -> Core 0 Mar 27 11:20:02 zadapi-L kernel: Intel machine check architecture supported. Mar 27 11:20:02 zadapi-L kernel: Intel machine check reporting enabled on CPU#0. Mar 27 11:20:02 zadapi-L kernel: Compat vDSO mapped to ffffe000. Mar 27 11:20:02 zadapi-L kernel: Checking 'hlt' instruction... OK. Mar 27 11:20:02 zadapi-L kernel: SMP alternatives: switching to UP code Mar 27 11:20:02 zadapi-L kernel: ACPI: Core revision 20070126 Mar 27 11:20:02 zadapi-L kernel: CPU0: AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ stepping 01 Mar 27 11:20:02 zadapi-L kernel: SMP alternatives: switching to SMP code Mar 27 11:20:02 zadapi-L kernel: Booting processor 1/1 eip 3000 Mar 27 11:20:02 zadapi-L kernel: CPU 1 irqstacks, hard=c07aa000 soft=c078a000 Mar 27 11:20:02 zadapi-L kernel: Not responding. Mar 27 11:20:02 zadapi-L kernel: Inquiring remote APIC #1... Mar 27 11:20:02 zadapi-L kernel: ... APIC #1 ID: 1000000 Mar 27 11:20:02 zadapi-L kernel: ... APIC #1 VERSION: 80050010 Mar 27 11:20:02 zadapi-L kernel: ... APIC #1 SPIV: ff Mar 27 11:20:02 zadapi-L kernel: CPU #1 not responding - cannot use it. Mar 27 11:20:02 zadapi-L kernel: Total of 1 processors activated (4222.40 BogoMIPS). Mar 27 11:20:02 zadapi-L kernel: ENABLING IO-APIC IRQs Mar 27 11:20:02 zadapi-L kernel: ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1 Mar 27 11:20:02 zadapi-L kernel: Brought up 1 CPUs