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. Thanks, --Arvind
On 2013-12-31, Arvind Nagarajan <arnagara at gmail.com> wrote:> > My linux machine hangs after some period of inactivity (8+ hrs). > Anyone experiencing similar issue.[snip]> Any pointers will be helpful.The canonical first place to check is your logs, many of which are in /var/log/ . Beyond that, information about running apps at the time you leave it before it crashes would be helpful, and you might try not logging in to see if the problem occurs with no user activity (if not, it points to an app that starts when you log in). --keith -- kkeller at wombat.san-francisco.ca.us
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