[Crash-utility] [PATCH 4/11] Fix percpu handling for symbols without debuginfo

When trying to show a percpu symbol without debuginfo, crash fails like this: crash> p fcoe_percpu:0 p: gdb request failed: p *(<data variable, no debug info>*) 0xffff88011e2d4900 This is because gdb does not really fail if the type is unknown: crash> gdb whatis fcoe_percpu type = <data variable, no debug info> crash> gdb info variables fcoe_percpu All variables matching regular expression "fcoe_percpu": Non-debugging symbols: 0x0000000000014900 fcoe_percpu Of course, the actual contents cannot be shown in this case, but crash should at least display the address: crash> p fcoe_percpu:0 &per_cpu(fcoe_percpu, 0) = $1 = (void *) 0xffff88011e214900 Signed-off-by: Petr Tesarik <ptesarik(a)suse.cz&gt;