On 31.12.2013 03:00, Arvind Nagarajan wrote: > Hi, > > My linux machine hangs after some period of inactivity (8+ hrs). > Anyone experiencing similar issue. > > CentOS > Release 6.5(Final) > Kernel Linux 2.6.32-431.el6_x86_64 > GNOME 2.28.2 > > Processor (0 - 7): > Intel(R) Core(TM) i7-4770 CPU @ 3.40 GHz > > Any pointers will be helpful. You can try running the machine with the kernel option "pcie_aspm=off" and see if that helps and also try to disable C-States or Power Saving all together in the BIOS. More Details here: https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Power_Management_Guide/ASPM.html http://lists.us.dell.com/pipermail/linux-poweredge/2011-June/044901.html I've experienced lock-ups in the past because of these issues. The network device hung because it tried to go into power saving mode using ASPM and it failed and whole servers locked-up after being idle for a while because of a bug in Intel Processors regarding the deeper power saving modes (C-States) although these are supposed to be fixed since 6.3. Hope this helps. Regards, Dennis _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos