On Tue, 18 Oct 2022 18:17:55 +0200 Uladzislau Rezki <urezki@xxxxxxxxx> wrote: > Hello, Steven. > > > > > [auto build test ERROR on akpm-mm/mm-everything] > > [also build test ERROR on linus/master v6.1-rc1 next-20221017] > > [If your patch is applied to the wrong git tree, kindly drop us a note. > > And when submitting patch, we suggest to use '--base' as documented in > > https://git-scm.com/docs/git-format-patch#_base_tree_information] > > > > url: https://github.com/intel-lab-lkp/linux/commits/Uladzislau-Rezki-Sony/Add-basic-trace-events-for-vmap-vmalloc/20221018-000544 > > base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything > > patch link: https://lore.kernel.org/r/20221017160233.16582-7-urezki%40gmail.com > > patch subject: [PATCH 4/7] mm/vmalloc: Use a trace_alloc_vmap_area event > > config: um-i386_defconfig > > compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 > > reproduce (this is a W=1 build): > > # https://github.com/intel-lab-lkp/linux/commit/fbc853c689b29d3bb9fe250b2653fd2dd8046fc7 > > git remote add linux-review https://github.com/intel-lab-lkp/linux > > git fetch --no-tags linux-review Uladzislau-Rezki-Sony/Add-basic-trace-events-for-vmap-vmalloc/20221018-000544 > > git checkout fbc853c689b29d3bb9fe250b2653fd2dd8046fc7 > > # save the config file > > mkdir build_dir && cp config build_dir/.config > > make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash > > > > If you fix the issue, kindly add following tag where applicable > > | Reported-by: kernel test robot <lkp@xxxxxxxxx> > > > > All errors (new ones prefixed by >>): > > > > In file included from include/trace/events/vmap.h:123, > > from mm/vmalloc.c:47: > > >> include/trace/define_trace.h:84:34: fatal error: trace/events/kernel_vmap.h: No such file or directory > > 84 | # define __TRACE_INCLUDE(system) <trace/events/system.h> > > | ^ > > compilation terminated. > > > I can reproduce it. It seems it happens so far only on the ARCH=um case. > For regular arm/x86 i do not see such build error. > > If i rename the TRACE_SYSTEM macro to something different then "vmap" > it compiles fine. In case of: > > #define TRACE_SYSTEM vmap > > the prefix "kernel_" is added, thus the header name becomes as kernel_vmap.h > > Steven can you give some indications? Or any thoughts about it? > > Thank you in advance! It comes from this: arch/um/Makefile:# -Dvmap=kernel_vmap prevents anything from referencing the libpcap.o symbol so arch/um/Makefile: $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \ It defines "vmap" to "kernel_vmap" which will change the above TRACE_SYSTEM Define to: #define TRACE_SYSTEM kernel_vmap and that will confuse everything else. -- Steve > > -- > Uladzislau Rezki
