On Fri, Oct 05, 2018 at 05:22:29AM -0600, Jan Beulich wrote: > >>> On 05.10.18 at 12:28, <[email protected]> wrote: > > On Fri, Oct 05, 2018 at 04:12:10AM -0600, Jan Beulich wrote: > >> Now that CONFIG_HVM can (and should) be turned off for the shim, gcc 8.2 > >> apparently is no longer sure that "port" is indeed initialized at > >> > >> if ( sched_poll->nr_ports == 1 ) > >> v->poll_evtchn = port; > >> > >> It doesn't look to be impossible for the compiler to prove it is not, > >> but we also can't rely on that to be the case. Add an initializer. > >> > >> Signed-off-by: Jan Beulich <[email protected]> > > > > TBH I fail to see how CONFIG_HVM would affect do_poll. Also there is > > already build test with gcc 8.2 which never discovered the issue you > > described. > > I can't explain the sudden diagnostic too (without taking apart what > exactly the compiler does), but the same config (just with HVM=y) > built fine before. Without any further insight (which I don't think is > worth the time) I don't see how I could improve the description.
Oh well. Acked-by: Wei Liu <[email protected]> > > Jan > > _______________________________________________ Xen-devel mailing list [email protected] https://lists.xenproject.org/mailman/listinfo/xen-devel
