Thanks for the Inputs. As there is not kernel crash, crash files are not create here to debug more. Is there any way to force the kernel to create kernel crash files under /var/crash. This helps more If am not wrong.
Regards, Sri On Mon, Oct 10, 2011 at 9:20 PM, Mulyadi Santosa <[email protected]>wrote: > Hi... > > On Mon, Oct 10, 2011 at 13:34, sri <[email protected]> wrote: > > > > ######################## START OF LOGS ############################ > > Oct 1 14:16:56 server03 kernel: low stack detected by irq handler > > Oct 1 14:16:56 server03 kernel: [<c0405e9b>] do_IRQ+0x86/0xc3 > > Oct 1 14:16:56 server03 kernel: [<c04046e6>] common_interrupt+0x1a/0x20 > > Oct 1 14:16:56 server03 kernel: [<c05a5c06>] neigh_lookup+0x23/0x7f > > Oct 1 14:16:56 server03 kernel: [<c05d6800>] > arp_bind_neighbour+0x50/0x71 > > Oct 1 14:16:56 server03 kernel: [<c05b7b44>] rt_intern_hash+0x372/0x480 > > Oct 1 14:16:56 server03 kernel: [<c05b8352>] > __ip_route_output_key+0x700/ > > Looks like something is exhausting kernel stack way too fast. IIRC in > 4K kernel stack scenario, 4K is assigned for normal usage and another > 4K for irq. > > So, IMHO, either something is leaking, or code paths are mixing too > much and too fast so they all together exhaust the irq stack. > > For debugging, I am not sure...maybe ftrace stack usage could help > you. Grep your kernel .config and find out everything that contains > "stack". Or go to "kernel hacking" section and dig into ftrace > section. > > Good luck.... > > -- > regards, > > Mulyadi Santosa > Freelance Linux trainer and consultant > > blog: the-hydra.blogspot.com > training: mulyaditraining.blogspot.com > -- -- Krishna Mohan B
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