On Thu, 2022-03-10 at 21:10 -0800, Yonghong Song wrote: > > On 3/10/22 4:11 PM, Delyan Kratunov wrote: [..] > > When I tried to build the patch set with parallel mode (-j), > make -C tools/testing/selftests/bpf -j > I hit the following errors: > > /bin/sh: line 1: 3484984 Bus error (core dumped) > /home/yhs/work/bpf-next/tools/testing/selftests/bpf/tools/sbin/bpftool > gen skeleton > /home/yhs/work/bpf-next/tools/testing/selftests/bpf/test_ksyms_weak.linked3.o > name test_ksyms_weak > > /home/yhs/work/bpf-next/tools/testing/selftests/bpf/test_ksyms_weak.skel.h > make: *** [Makefile:496: > /home/yhs/work/bpf-next/tools/testing/selftests/bpf/test_ksyms_weak.skel.h] > Error 135 > make: *** Deleting file > '/home/yhs/work/bpf-next/tools/testing/selftests/bpf/test_ksyms_weak.skel.h' > make: *** Waiting for unfinished jobs.... > make: Leaving directory > '/home/yhs/work/bpf-next/tools/testing/selftests/bpf' > > Probably some make file related issues. > I didn't hit this issue before without this patch set. Hm, that's interesting, can you reproduce it? I build everything with -j and have not seen any bpftool issues. I also use ASAN for bpftool and that's not complaining about anything either. SIGBUS suggests a memory mapped file was not there. I'll try and come up with ways that can happen, especially given that it's a `gen skeleton` invocation, which I haven't changed at all. --Delyan
