KDB is a wonderful tool, but I am having problems using the version shipped with the linux-2.4.18-18SGI_XFS_1.2pre5 kernel (out of the XFS project at oss.sgi.com).
First, I am not getting any symbols out of the stack backtraces. Second, I am not able to break into a system hang - making the debugger useless for what I really need it for. In previous versions (namely, linux-2.4.18-4SGI_XFS_1.1) I was able to fix the break-in problem by applying an apic patch that distributed interrupts so that everything was not going through CPU0. This patch does not work with the 2.4.18-18 Red Hat kernel, though...... so..... Is there any new patch recommended to help debug CPU0 hangs on the Red Hat 2.4.18 (current) distributions ? Is there anything I need to do special to get symbols in the KDB tracebacks (like configure in stack frame pointers, maybe?) ? Is there anything that anyone could recommend that I read which would help me figure this stuff out ? Thanks, Jim Foris
