Re: [Crash-utility] crash enhancements proposal

crash-utility-bounces(a)redhat.com wrote on 05/05/2006 09:06:55 AM: > > For lcrash (lkcdutils) we have a patch, which provides > > functionality to create an elf core dump out of a > > system crash dump. This core dump can > > then be processed with gdb. We already have code to > > include swap devices and files. > > > > Maybe that is also one option, which should be considered > > here. > > If I am not wrong you meant, that "lcrash" is able to show user space stack > backtrace because the dump includes data from swap devices & files? > Just wondering if you have used "crash" in the same manner? > There exist a patch for an older version of lcrash which implements the following functionality: * read in swap files, when you start lcrash. Something like: >> lcrash System.map dump Kerntypes swap1 swap2 .... The swapfiles have to be saved of course at boot time after a system crash. * implement a core command in lcrash: >> core <process ID of process XY> This writes an elf core file for process XY to disk. After you have the core file, you can use gdb to analyze the userspace problem: gdb XY core Any more questions?