On Thu, 2010-03-25 at 10:41 +0800, Csdncannon wrote: > In my program, the value of the 64-bit time base register is > read out, and you will find the later value is even smaller than the > earlier value from the log “log_timebase”. While the kernel depends on > the accuracy of the timebase for the compensation of the lost PIT > interrupt, the negative value between two continual timebase reading > will bring to the jump of the jiffies. And this timebase problem will > bring to the instability of the gettimeofday system call. > > Do you have any idea about this problem, thanks for your any > advice. Attached is the code and log.
This is a concern, it should definitely not happen. What machine is that ? is the code compiled 32-bit or 64-bit ? What kernel version ? Arnd, any chance that could relate to the bug you've been chasing on Cell ? Cheers, Ben. > > Thanks > > Gino > > > > > > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
