Hi Rahul Did you try to redirect console to a serial port? If a system crashes and all console messages (including kernel) will be sent to the serial console that will keep displaying the messages it received until the system is power cycled ...
-- ttyl Paolo Rahul Nabar wrote: > On my Centos system I installed kexec/kdump to investigate the cause of > some random system-crashes by getting access to a crash-dump. I installed > the rpm for kexec and then made the change to grub.conf that reserves the > additional memory for the new kernel. > > Also configured kdump.conf. I start the kexec service.and then I tried to > simulate a crash by echo c to sysrq-trigger. > > The system does crash and then after a while reboots itself. But I see no > vmcore when it coms back up. /var/crash is empty. This is when I tried to > write to local drive. > > I also tried a nfs write but then still no success. > > Any idea what could be missing in my steps? Or any other debug > suggestions? Any other kdump users on Beowulf? > _______________________________________________ Beowulf mailing list, [email protected] To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
