Log Date/time doesn't change with system time

saurabhchokshi · 06-29-2010, 05:12 PM

Hello Folks,

I have the application and kernel module running on my system. In the meantime, I am changing the date and time of the system. However, this change doesn't reflect on log messages of the application that's being executed.

Please share your thoughts and idea to sort out this issue w/o restarting the application.

Thanks,
Saurabh Chokshi

TB0ne · 06-29-2010, 05:58 PM

Quote:

Originally Posted by saurabhchokshi

Hello Folks,

I have the application and kernel module running on my system. In the meantime, I am changing the date and time of the system. However, this change doesn't reflect on log messages of the application that's being executed.

Please share your thoughts and idea to sort out this issue w/o restarting the application.

Don't know exactly what you think we can tell you, based on your question. We have no idea what "the application" is, what "kernel module" you're referring to, on what version/distro of Linux, etc. You tell us nothing about how the system is set up, where it gets its time from now, and what log file you're talking about.

Provide details, and perhaps you can get help.

saurabhchokshi · 06-30-2010, 02:08 AM

Hi,

I am executing PCIe Device Driver and IOCTL File operations driver as a kernel that is connected with PCIe interface. This driver is being used by application through IOCTL calls to compute the incoming data coming from peripheral device through PCIe.

I am using Centos 5.3 Linux Distribution with Linux kernel 2.6.27.20. I am modifying the local date and time of the system. I hope this information helps.

Thanks,
Saurabh Chokshi

saurabhchokshi · 07-01-2010, 02:43 PM

Hello Folks,

Any updates or inputs for this post?

Thanks,
Saurabh

saurabhchokshi · 07-06-2010, 07:05 PM

Hello ,

Please help me out to resolve this issue.

Is this issue unsolvable?

Thanks,
Saurabh

RandomTroll · 07-07-2010, 12:27 AM

I'm not confident I know what's going on.

Are you changing the hardware clock and hoping that that will change the system time? It won't unless you synchronize the system time with the hardware clock. I use hwclock for this.

Are you running a time daemon that updates the system clock?

Could the application get its time from elsewhere, such as an external device to which it is attached?

One could write an application that keeps its own time. Do the entries in /var/log/messages show that the time has changed?