On Fri, May 25, 2018 at 04:00:33PM +0800, Dave Young wrote: > On 05/24/18 at 01:08pm, Bhupesh Sharma wrote: > > The kdump tool presently allows one to generate an ELF file containing > > the ELF header, PT_NOTE and PT_LOAD segments (which can be analyzed > > later by tools like 'readelf') of the crashdump read from memory, when > > passed with an appropriate 'elfcorehdr' value(which represents the > > physical address of the start of the ELF header). > > > > With the availability of tools like crash/gdb the analysis of the > > crashdump core has become rather easy, and it makes the kdump tool > > obsolete. Also the same naming convention (man page) causes confusion > > when compared to similarly named distribution specific kdump > > service/utilities. > > > > Also most distributions (like Fedora for e.g.) now support more > > enhanced kdump service and utilities which can be used to analyze the > > crashdump core contents better. Taking an example of the Fedora > > specific kdump service and utilities, the following sequence of steps > > happen when the primary kernel crashes: > > > > 1. If the crashkernel is loaded, then the system starts executing the > > same. > > > > 2. When the boot process gets to the point when kdump service is > > started, the crashdump core is usually copied out to disk (for e.g. > > inside '/var/crash') using 'cp' command from '/proc/vmcore': > > # cp /proc/vmcore <dump-file> > > > > 3. Thereafter the system is rebooted back into the normal kernel. > > > > 4. Once back to your normal kernel, one can use the crashdump core > > available on hard disk in conjunction with the previously installed > > kernel (with debuginfo) to perform postmortem analysis with tools like > > gdb/crash: > > # gdb vmlinux <dump-file> > > > > Accordingly, this patch removes the obsolete kdump tool from > > 'kexec-tools'. > > The main issue for me is the manpage kdump.8 cause confusion to people > The kdump tools is not a main problem to exist or not, but I think > removing the kdump tool along with the man page looks a good cleanup :) > > Reviewed-by: Dave Young <dyoung@xxxxxxxxxx> Thanks, applied. _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
