Commit fec2e55bdef ("selftests: drv-net: Pull data before parsing headers") added __ksym external symbol to xdp_native.bpf.c which now requires a kernel with BTF. Enable BTF for driver selftests.
Before:
# TAP version 13 # 1..10 # # Exception| Traceback (most recent call last): # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/ksft.py", line 244, in ksft_run # # Exception| case(*args) # # Exception| ~~~~^^^^^^^ # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/drivers/net/./xdp.py", line 231, in test_xdp_native_pass_sb # # Exception| _test_pass(cfg, bpf_info, 256) # # Exception| ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^ # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/drivers/net/./xdp.py", line 209, in _test_pass # # Exception| prog_info = _load_xdp_prog(cfg, bpf_info) # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/drivers/net/./xdp.py", line 114, in _load_xdp_prog # # Exception| cmd( # # Exception| ~~~^ # # Exception| f"ip link set dev {cfg.ifname} mtu {bpf_info.mtu} xdpdrv obj {abs_path} sec {bpf_info.xdp_sec}", # # Exception| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ # # Exception| shell=True # # Exception| ^^^^^^^^^^ # # Exception| ) # # Exception| ^ # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/utils.py", line 75, in __init__ # # Exception| self.process(terminate=False, fail=fail, timeout=timeout) # # Exception| ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/utils.py", line 95, in process # # Exception| raise CmdExitFailure("Command failed: %s\nSTDOUT: %s\nSTDERR: %s" % # # Exception| (self.proc.args, stdout, stderr), self) # # Exception| net.lib.py.utils.CmdExitFailure: Command failed: ip link set dev eni30773np1 mtu 1500 xdpdrv obj /home/sdf/src/linux/tools/testing/selftests/net/lib/xdp_native.bpf.o sec xdp # # Exception| STDOUT: b'' # # Exception| STDERR: b"libbpf: kernel BTF is missing at '/sys/kernel/btf/vmlinux', was CONFIG_DEBUG_INFO_BTF enabled?\nlibbpf: failed to find '.BTF' ELF section in /lib/modules/6.17.0-rc6-virtme/build/vmlinux\nlibbpf: failed to find valid kernel BTF\nlib bpf: Error loading vmlinux BTF: -3\nlibbpf: failed to load object '/home/sdf/src/linux/tools/testing/selftests/net/lib/xdp_native.bpf.o'\n" # not ok 1 xdp.test_xdp_native_pass_sb ...
After:
# TAP version 13 # 1..10 # ok 1 xdp.test_xdp_native_pass_sb # ok 2 xdp.test_xdp_native_pass_mb # ok 3 xdp.test_xdp_native_drop_sb # ok 4 xdp.test_xdp_native_drop_mb # ok 5 xdp.test_xdp_native_tx_sb # ok 6 xdp.test_xdp_native_tx_mb # # Ignoring SIGTERM (cnt: 2), already exiting... # # Ignoring SIGTERM (cnt: 3), already exiting... # # Exception| Traceback (most recent call last): # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/ksft.py", line 244, in ksft_run # # Exception| case(*args) # # Exception| ~~~~^^^^^^^ # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/drivers/net/./xdp.py", line 506, in test_xdp_native_adjst_taa # # Exception| res = _test_xdp_native_tail_adjst( # # Exception| cfg, # # Exception| pkt_sz_lst, # # Exception| offset_lst, # # Exception| ) # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/drivers/net/./xdp.py", line 467, in _test_xdp_native_tail_adt # # Exception| recvd_str = _exchg_udp(cfg, port, test_str) # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/drivers/net/./xdp.py", line 72, in _exchg_udp # # Exception| with bkg(rx_udp_cmd, exit_wait=True) as nc: # # Exception| ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^ # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/utils.py", line 137, in __exit__ # # Exception| return self.process(terminate=terminate, fail=self.check_fail) # # Exception| ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/utils.py", line 85, in process # # Exception| stdout, stderr = self.proc.communicate(timeout) # # Exception| ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^ # # Exception| File "/usr/lib/python3.13/subprocess.py", line 1222, in communicate # # Exception| stdout, stderr = self._communicate(input, endtime, timeout) # # Exception| ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^ # # Exception| File "/usr/lib/python3.13/subprocess.py", line 2128, in _communicate # # Exception| ready = selector.select(timeout) # # Exception| File "/usr/lib/python3.13/selectors.py", line 398, in select # # Exception| fd_event_list = self._selector.poll(timeout) # # Exception| File "/home/sdf/src/linux/tools/testing/selftests/net/lib/py/ksft.py", line 208, in _ksft_intr # # Exception| raise KsftTerminate() # # Exception| net.lib.py.ksft.KsftTerminate # # Stopping tests due to KsftTerminate. # not ok 7 xdp.test_xdp_native_adjst_tail_grow_data # # Totals: pass:6 fail:1 xfail:0 xpass:0 skip:0 error:0
Signed-off-by: Stanislav Fomichev sdf@fomichev.me --- tools/testing/selftests/drivers/net/config | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/tools/testing/selftests/drivers/net/config b/tools/testing/selftests/drivers/net/config index f27172ddee0a..da5a5a94fa6a 100644 --- a/tools/testing/selftests/drivers/net/config +++ b/tools/testing/selftests/drivers/net/config @@ -5,3 +5,5 @@ CONFIG_NETCONSOLE=m CONFIG_NETCONSOLE_DYNAMIC=y CONFIG_NETCONSOLE_EXTENDED_LOG=y CONFIG_XDP_SOCKETS=y +CONFIG_DEBUG_INFO_BTF=y +CONFIG_DEBUG_INFO_BTF_MODULES=n