On a machine rebooted this morning (and predating the reboot, though I cannot say for sure what version of the kernel was running before reboot), the machine keeps gaining time and resetting it, multiple times per hour.
lshw says (in part):
description: Rack Mount Chassis
product: ProLiant DL380 G7
vendor: HP
width: 64 bits
capabilities: smbios-2.7 dmi-2.7 vsyscall64 vsyscall32
configuration: boot=normal chassis=rackmount uuid=34373030-3635-435A-3231-32333036424C
*-core
description: Motherboard
physical id: 0
*-firmware
description: BIOS
vendor: HP
physical id: 0
version: P67 (05/05/2011)
size: 64KiB
capacity: 8128KiB
capabilities: pci pnp upgrade shadowing escd cdboot bootselect edd int13floppy360 int13floppy1200 int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification netboot
*-cpu:0
description: CPU
product: Intel(R) Xeon(R) CPU E5649 @ 2.53GHz
vendor: Intel Corp.
physical id: 400
bus info: cpu@0
version: Intel(R) Xeon(R) CPU E5649 @ 2.53GHz
slot: Proc 1
size: 2528MHz
capacity: 2528MHz
width: 64 bits
clock: 133MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt aes lahf_lm ida arat tpr_shadow vnmi flexpriority ept vpid cpufreq
...
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 920649
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.