On 25/04/18 12:08, Petr Tesarik wrote: > Xen PV domains cannot shut down and start a crash kernel. Instead, > the crashing kernel makes a SCHEDOP_shutdown hypercall with the > reason code SHUTDOWN_crash, cf. xen_crash_shutdown() machine op in > arch/x86/xen/enlighten_pv.c. > > A crash kernel reservation is merely a waste of RAM in this case. It > may also confuse users of kexec_load(2) and/or kexec_file_load(2). > When flags include KEXEC_ON_CRASH or KEXEC_FILE_ON_CRASH, > respectively, these syscalls return success, which is technically > correct, but the crash kexec image will never be actually used. > > Signed-off-by: Petr Tesarik <[email protected]>
Reviewed-by: Juergen Gross <[email protected]> Juergen
