On Fri, Oct 18, 2019 at 02:32:15PM +0800, Liu Yiding wrote: > Hi All. > > The patch 5c069b6dedef "selftests: Move test output to diagnostic lines" > from Apr 24, 2019, > > leads to `make run_tests -C bpf` hanging forever. I can't even run this, the autodetection seems broken. I have BPF and libelf installed.... $ make run_tests -C bpf [...] Auto-detecting system features: ... libelf: [ OFF ] ... bpf: [ OFF ] Auto-detecting system features: ... libelf: [ OFF ] ... bpf: [ OFF ] No libelf found Makefile:269: recipe for target 'elfdep' failed make[2]: *** [elfdep] Error 1 Makefile:154: recipe for target 'all' failed make[1]: *** [all] Error 2 > Bpf includes many subtest, when cmd `make run_tests -C bpf` runs to > test_lwt_seg6local.sh, task will hang and runner.sh never run next task. I > checked ps aux, prefix.pl will never exit. > > ``` > > 91058 [ 811.451584] # [25] VAR __license type_id=24 linkage=1 > 91059 [ 811.451586]- > 91060 [ 811.455365] # [26] DATASEC license size=0 vlen=1 size == 0 > 91061 [ 811.455367]- > 91062 [ 811.457424] #- > 91063 [ 811.457425]- > 91064 [ 811.460912] # selftests: test_lwt_seg6local [PASS] > 91065 [ 811.460914]- > 91066 [ 3620.461986] Thu Oct 17 14:54:05 CST 2019 detected soft_timeout > > ``` > > Ignore test_lwt_seg6local and run `make run_tests -C bpf` again, task will > hang on test_tc_tunnel.sh. > > > Kushwaha also meet this issue, `make run_tests -C bpf` hang on > test_lwt_ip_encap.sh (This test failed on my localhost). If it keeps hanging on progressively later tests, it sounds like some kind of stdout/stderr flushing (or reading) is missing. This is hard for me to debug without understanding how to have the kernel tree notice my installed libraries, though. -- Kees Cook
