On Thu, Mar 16, 2017 at 03:39:36PM +0100, Arnd Bergmann wrote: > On Thu, Mar 16, 2017 at 2:59 PM, Jiri Olsa <jolsa@xxxxxxxxxx> wrote: > > On Thu, Mar 16, 2017 at 02:44:45PM +0100, Arnd Bergmann wrote: > >> On Thu, Mar 16, 2017 at 1:49 PM, Jiri Olsa <jolsa@xxxxxxxxxx> wrote: > >> > On Thu, Mar 16, 2017 at 09:29:07AM -0300, Arnaldo Carvalho de Melo wrote: > >> >> Em Wed, Mar 15, 2017 at 02:15:22PM +0100, Arnd Bergmann escreveu: > >> >> > On Wed, Mar 15, 2017 at 8:22 AM, gregkh <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > >> >> > > > >> >> > > All now queued up in the stable trees, thanks. > >> >> > > >> >> > Like 4.9.y it builds clean except for a couple of stack frame size warnings > >> >> > and this one that continues to puzzle me. > >> >> > > >> >> > /bin/sh: 1: /home/buildslave/workspace/kernel-builder/arch/x86/defconfig/allmodconfig+CONFIG_OF=n/label/builder/next/build-x86/tools/objtool//fixdep: > >> >> > Permission denied > >> >> > >> >> Jiri? Josh? > >> > > >> > hum, looks like it imight be related to this fix we did for perf: > >> > abb26210a395 perf tools: Force fixdep compilation at the start of the build > >> > > >> > it's forcing fixdep to be build as first.. having it as a simple dependency > >> > (which AFAICS is objtool case), the make -jX occasionaly raced on high cpu > >> > servers, and executed unfinished binary, hence the permission fail > >> > >> It's probably another variation of this bug, but the commit you cite got merged > >> into 4.10-rc1, while the problem still persists in mainline (4.11-rc2+). > > > > the problem is in objtool build right? the fix was for perf build > > Ah, got it. Yes, that must be it then. I supposed we coul duplicate what you > did for perf in objtool, but a cleaner way would be to generalize it for all of > tools/, right? This is a shot in the dark, since I don't have a way to recreate, but can you try the following patch? This should make sure that objtool only tries to build fixdep once. diff --git a/tools/build/Makefile.include b/tools/build/Makefile.include index ad22e4e..179f4f0 100644 --- a/tools/build/Makefile.include +++ b/tools/build/Makefile.include @@ -1,6 +1,8 @@ build := -f $(srctree)/tools/build/Makefile.build dir=. obj -fixdep: +fixdep: $(OUTPUT)fixdep + +$(OUTPUT)fixdep: $(Q)$(MAKE) -C $(srctree)/tools/build CFLAGS= LDFLAGS= $(OUTPUT)fixdep .PHONY: fixdep
