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fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2026 01:55:24 -0700 Date: Wed, 12 Aug 2026 16:55:20 +0800 From: kernel test robot To: Tristan Madani Cc: oe-lkp@lists.linux.dev, lkp@intel.com, netdev@vger.kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, maheshb@google.com, stable@vger.kernel.org, linux-kernel@vger.kernel.org, Tristan Madani , yi1.lai@intel.com Subject: Re: [PATCH net v3] net: reduce XMIT_RECURSION_LIMIT under KASAN Message-ID: <202608121039.ca91f25a-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260727200454.4048141-1-tristmd@gmail.com> Hello, kernel test robot noticed "kselftests-bpf.net/forwarding fail" on: commit: ef83ebe178d46ab0d26a906be5fcd654a488c730 ("[PATCH net v3] net: reduce XMIT_RECURSION_LIMIT under KASAN") url: https://github.com/intel-lab-lkp/linux/commits/Tristan-Madani/net-reduce-XMIT_RECURSION_LIMIT-under-KASAN/20260728-072802 base: https://git.kernel.org/cgit/linux/kernel/git/davem/net.git bd0e9289e2642f6a5c54faad304ce0f41e926d22 patch link: https://lore.kernel.org/all/20260727200454.4048141-1-tristmd@gmail.com/ patch subject: [PATCH net v3] net: reduce XMIT_RECURSION_LIMIT under KASAN in testcase: kselftests-bpf version: with following parameters: group: net/forwarding failed cases: forwarding.custom_multipath_hash.sh forwarding.vxlan_asymmetric.sh forwarding.vxlan_asymmetric_ipv6.sh forwarding.vxlan_symmetric.sh forwarding.vxlan_symmetric_ipv6.sh config: x86_64-rhel-9.4-bpf compiler: gcc-14 test machine: 16 threads Intel(R) Core(TM) i7-13620H (Raptor Lake) with 32G memory (please refer to attached dmesg/kmsg for entire log/backtrace) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202608121039.ca91f25a-lkp@intel.com KERNEL SELFTESTS: linux_headers_dir is /usr/src/linux-headers-x86_64-rhel-9.4-bpf-ef83ebe178d46ab0d26a906be5fcd654a488c730 2026-08-04 22:51:54 sed -i s/default_timeout=45/default_timeout=300/ kselftest/runner.sh 2026-08-04 22:51:54 make -j16 TARGETS=net/forwarding run_tests # timeout set to 0 # selftests: net/forwarding: custom_multipath_hash.sh # TEST: ping [ OK ] # TEST: ping6 [ OK ] # INFO: Running IPv4 custom multipath hash tests # TEST: Multipath hash field: Source IP (balanced) [ OK ] # INFO: Packets sent on path1 / path2: 6600 / 6001 # TEST: Multipath hash field: Source IP (unbalanced) [ OK ] # INFO: Packets sent on path1 / path2: 0 / 12600 # TEST: Multipath hash field: Destination IP (balanced) [ OK ] # INFO: Packets sent on path1 / path2: 5950 / 6650 # TEST: Multipath hash field: Destination IP (unbalanced) [ OK ] # INFO: Packets sent on path1 / path2: 0 / 12600 # TEST: Multipath hash field: Source port (balanced) [ OK ] # INFO: Packets sent on path1 / path2: 16505 / 16265 # TEST: Multipath hash field: Source port (unbalanced) [ OK ] # INFO: Packets sent on path1 / path2: 0 / 32771 # TEST: Multipath hash field: Destination port (balanced) [ OK ] # INFO: Packets sent on path1 / path2: 16504 / 16266 # TEST: Multipath hash field: Destination port (unbalanced) [ OK ] # INFO: Packets sent on path1 / path2: 32769 / 0 # INFO: Running IPv6 custom multipath hash tests # TEST: Multipath hash field: Source IP (balanced) [ OK ] # INFO: Packets sent on path1 / path2: 6102 / 6500 # TEST: Multipath hash field: Source IP (unbalanced) [ OK ] # INFO: Packets sent on path1 / path2: 12600 / 0 # TEST: Multipath hash field: Destination IP (balanced) [ OK ] # INFO: Packets sent on path1 / path2: 6100 / 6500 # TEST: Multipath hash field: Destination IP (unbalanced) [ OK ] # INFO: Packets sent on path1 / path2: 12600 / 0 # TEST: Multipath hash field: Flowlabel (balanced) [FAIL] # Expected traffic to be balanced, but it is not # INFO: Packets sent on path1 / path2: 1 / 0 # TEST: Multipath hash field: Flowlabel (unbalanced) [ OK ] # INFO: Packets sent on path1 / path2: 0 / 12600 # TEST: Multipath hash field: Source port (balanced) [ OK ] # INFO: Packets sent on path1 / path2: 16422 / 16347 # TEST: Multipath hash field: Source port (unbalanced) [ OK ] # INFO: Packets sent on path1 / path2: 32771 / 0 # TEST: Multipath hash field: Destination port (balanced) [ OK ] # INFO: Packets sent on path1 / path2: 16422 / 16347 # TEST: Multipath hash field: Destination port (unbalanced) [ OK ] # INFO: Packets sent on path1 / path2: 32769 / 0 not ok 17 selftests: net/forwarding: custom_multipath_hash.sh # exit=1 # selftests: net/forwarding: vxlan_asymmetric.sh # RTNETLINK answers: File exists # RTNETLINK answers: File exists # TEST: ping: local->local vid 10->vid 20 [ OK ] # TEST: ping: local->remote vid 10->vid 10 [ OK ] # TEST: ping: local->remote vid 20->vid 20 [ OK ] # TEST: ping: local->remote vid 10->vid 20 [FAIL] # TEST: ping: local->remote vid 20->vid 10 [FAIL] # INFO: deleting neighbours from vlan interfaces # TEST: ping: local->local vid 10->vid 20 [ OK ] # TEST: ping: local->remote vid 10->vid 10 [ OK ] # TEST: ping: local->remote vid 20->vid 20 [ OK ] # TEST: ping: local->remote vid 10->vid 20 [FAIL] # TEST: ping: local->remote vid 20->vid 10 [FAIL] # selftests: net/forwarding: vxlan_asymmetric_ipv6.sh # TEST: ping6: local->local vid 10->vid 20 [ OK ] # TEST: ping6: local->remote vid 10->vid 10 [ OK ] # TEST: ping6: local->remote vid 20->vid 20 [ OK ] # TEST: ping6: local->remote vid 10->vid 20 [FAIL] # TEST: ping6: local->remote vid 20->vid 10 [FAIL] # INFO: deleting neighbours from vlan interfaces # TEST: ping6: local->local vid 10->vid 20 [ OK ] # TEST: ping6: local->remote vid 10->vid 10 [ OK ] # TEST: ping6: local->remote vid 20->vid 20 [ OK ] # TEST: ping6: local->remote vid 10->vid 20 [FAIL] # TEST: ping6: local->remote vid 20->vid 10 [FAIL] not ok 100 selftests: net/forwarding: vxlan_asymmetric_ipv6.sh # exit=1 # selftests: net/forwarding: vxlan_symmetric.sh # RTNETLINK answers: File exists # RTNETLINK answers: File exists # TEST: ping: local->local vid 10->vid 20 [ OK ] # TEST: ping: local->remote vid 10->vid 10 [ OK ] # TEST: ping: local->remote vid 20->vid 20 [ OK ] # TEST: ping: local->remote vid 10->vid 20 [FAIL] # TEST: ping: local->remote vid 20->vid 10 [FAIL] not ok 111 selftests: net/forwarding: vxlan_symmetric.sh # exit=1 # timeout set to 0 # selftests: net/forwarding: vxlan_symmetric_ipv6.sh # TEST: ping6: local->local vid 10->vid 20 [ OK ] # TEST: ping6: local->remote vid 10->vid 10 [ OK ] # TEST: ping6: local->remote vid 20->vid 20 [ OK ] # TEST: ping6: local->remote vid 10->vid 20 [FAIL] # TEST: ping6: local->remote vid 20->vid 10 [FAIL] not ok 112 selftests: net/forwarding: vxlan_symmetric_ipv6.sh # exit=1 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260812/202608121039.ca91f25a-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki