Hi... On Tue, Feb 15, 2011 at 10:50, naveen yadav <[email protected]> wrote: > Hi All, > > I need small clarification for multicore linux kernel > > Case;1 > Kernel space: > > 1. If on two CPU's both running in kernel space and both crash at same > time t. what will happen will we get two crash dumps of registers or > single ?
I somewhat agree with Joongyu. So in the best case, you get one crash dump representing states of both CPUs. In worst case, you got none. IMO, it would always be single crash dump.....no matter how much CPUs you have...kernel AFAIK is single entity... > Case :2 > > User Space: > > 1. If on two CPU's both running in User space and both crash at same > time t. what will happen will we get two core files, Single core with > dump for both ? ok, you mean both CPUs running different programs and currently in user mode? now in this case you shall have two core files. One core file represent single task process address space AFAIK. -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com _______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
