On 08/09/20 16:03, Vincent Guittot wrote: > Adding Valentin as this seems related to the patch "sched/topology: > Move sd_flag_debug out of linux/sched/topology.h" > Thanks! > > On Tue, 8 Sep 2020 at 16:48, Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: >> >> On 9/8/20 3:56 AM, Stephen Rothwell wrote: >> > Hi all, >> > >> > Changes since 20200903: >> > >> >> on i386: >> >> ld: kernel/sched/topology.o: in function `cpu_attach_domain': >> topology.c:(.text+0xf03): undefined reference to `sd_flag_debug' >> ld: topology.c:(.text+0xf4f): undefined reference to `sd_flag_debug' >> ld: topology.c:(.text+0xfc2): undefined reference to `sd_flag_debug' >> So that should be in sched_domain_debug_one() which only gets defined for CONFIG_SCHED_DEBUG. Now, sd_flag_debug is: - declared in include/linux/sched/topology.h if CONFIG_SCHED_DEBUG - defined in kernel/sched/debug.c (only built if CONFIG_SCHED_DEBUG) I've compile-tested this for arm64 & x86 (default configs + toggling CONFIG_SCHED_DEBUG). UP can't be the cause because topology.c wouldn't even be compiled then. IIUC this is a build with CONFIG_SCHED_DEBUG but for some reason it doesn't link with kernel/sched/debug.o? >> >> Full randconfig file is attached. >> I wanted to peek at that config, but can't find that email. The thread view on lore [1] also shows it as AWOL; any chance you (or someone else) could re-send it? [1]: https://lore.kernel.org/lkml/20200908205659.361b0a1b@xxxxxxxxxxxxxxxx/ >> >> -- >> ~Randy >> Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
