On Fri, Nov 15, 2019 at 10:38:30AM -0600, Josh Poimboeuf wrote: > On Fri, Nov 15, 2019 at 08:02:30AM -0800, Randy Dunlap wrote: > > On 11/15/19 12:05 AM, Stephen Rothwell wrote: > > > Hi all, > > > > > > Changes since 20191114: > > > > > > > on x86_64: > > > > already reported and Josh supplied a fix (yet unmerged), > > but this is still around: > > > > kernel/exit.o: warning: objtool: __x64_sys_exit_group()+0x14: unreachable instruction > > My apologies, I have a growing backlog of objtool fixes which I hope to > post next week. > > > > > new AFAIK: > > > > drivers/gpu/drm/bridge/cdns-dsi.o: warning: objtool: cdns_dsi_bridge_enable()+0x3e0: unreachable instruction > > > > obj file for latter one is attached. > > This seems fishy. cdns_dsi_init_link() never returns, it always dies a > with UD2. I bet GCC decided that it always does a divide-by-zero, and > so it forces a crash as a result. Will try to dig deeper next week... Hi Randy, (Digging up old objtool threads...) This is another one that it would be nice to recreate, so I can open a GCC bug if needed. If you can still recreate it, can you provide the config file and GCC version? -- Josh
