bisecting fixing commit since ea200dec51285c82655e50ddb774fdb6b97e784d building syzkaller on d13d795888186e87aeec9ce670986d183036c348 testing commit ea200dec51285c82655e50ddb774fdb6b97e784d with gcc (GCC) 8.1.0 kernel signature: 5c64914cf143cd77588bf2ecb778f53eb653832150e8e6d30c60fb0fcd0935c5 all runs: crashed: WARNING in hsr_addr_subst_dest testing current HEAD 0e698dfa282211e414076f9dc7e83c1c288314fd testing commit 0e698dfa282211e414076f9dc7e83c1c288314fd with gcc (GCC) 8.1.0 kernel signature: 8cc665ad4a4de6ca22e783a3a60cafd60fa3043e93cb0500ab5ae290de4fef10 all runs: OK # git bisect start 0e698dfa282211e414076f9dc7e83c1c288314fd ea200dec51285c82655e50ddb774fdb6b97e784d Bisecting: 14587 revisions left to test after this (roughly 14 steps) [e941484541036ba3652b658ed5536c7bca5bdb89] Merge branch 'for-5.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup testing commit e941484541036ba3652b658ed5536c7bca5bdb89 with gcc (GCC) 8.1.0 kernel signature: 07ab32224d6f1480ac3103118ca8f7b1bc1ede0f826ac060831043258ef5b799 all runs: crashed: WARNING in hsr_addr_subst_dest # git bisect good e941484541036ba3652b658ed5536c7bca5bdb89 Bisecting: 7984 revisions left to test after this (roughly 13 steps) [4646de87d32526ee87b46c2e0130413367fb5362] Merge tag 'mailbox-v5.7' of git://git.linaro.org/landing-teams/working/fujitsu/integration testing commit 4646de87d32526ee87b46c2e0130413367fb5362 with gcc (GCC) 8.1.0 kernel signature: b124bbf8d50804e5f18da39ecd7b2c76dc3bda922bdcea4d47b088a7e19788de all runs: OK # git bisect bad 4646de87d32526ee87b46c2e0130413367fb5362 Bisecting: 3300 revisions left to test after this (roughly 12 steps) [97cddfc34549014b902f5954953ebd9a4f3f040a] Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 97cddfc34549014b902f5954953ebd9a4f3f040a with gcc (GCC) 8.1.0 kernel signature: 29376cf679ccac717253a20dae5e22dca49d8ac6245aba36abc3181441ff68cd all runs: crashed: WARNING in hsr_addr_subst_dest # git bisect good 97cddfc34549014b902f5954953ebd9a4f3f040a Bisecting: 1649 revisions left to test after this (roughly 11 steps) [e28596012d1a482641a2110ed1c4c09ce98562b3] Merge branch 'net-tls-Annotate-lockless-access-to-sk_prot' testing commit e28596012d1a482641a2110ed1c4c09ce98562b3 with gcc (GCC) 8.1.0 kernel signature: 2b0ef65d472e6a139cfc6ca22cfb7a384cb413c65d6e1b5a4b513ca0b1b5e94c all runs: OK # git bisect bad e28596012d1a482641a2110ed1c4c09ce98562b3 Bisecting: 878 revisions left to test after this (roughly 10 steps) [442a46ad103ed38ddaaba1d9f7d316beb492c66e] bcm63xx_enet: remove redundant variable definitions testing commit 442a46ad103ed38ddaaba1d9f7d316beb492c66e with gcc (GCC) 8.1.0 kernel signature: c43b9e2b13ae7c3631265efee461a75d9ea223f030c2745a7a45f12a7e9e9a07 all runs: OK # git bisect bad 442a46ad103ed38ddaaba1d9f7d316beb492c66e Bisecting: 385 revisions left to test after this (roughly 9 steps) [ce69e2162f158d9d4a0e513971d02dabc7d14cb7] mdio_bus: Add generic mdio_find_bus() testing commit ce69e2162f158d9d4a0e513971d02dabc7d14cb7 with gcc (GCC) 8.1.0 kernel signature: 920b4f88fcc5eb9afa8f7ca63ede27a214fe0ebd690ec39415ff3f2b4c016cea all runs: crashed: WARNING in hsr_addr_subst_dest # git bisect good ce69e2162f158d9d4a0e513971d02dabc7d14cb7 Bisecting: 209 revisions left to test after this (roughly 8 steps) [9a834f9b04bc5ed2db27eb45b0cc6415ce7c314c] Merge branch 'net-cleanup-datagram-receive-helpers' testing commit 9a834f9b04bc5ed2db27eb45b0cc6415ce7c314c with gcc (GCC) 8.1.0 kernel signature: d69395a2954c082b19470c8bade212a133b5f592208335d05ce5641eb8e1f55b all runs: crashed: WARNING in hsr_addr_subst_dest # git bisect good 9a834f9b04bc5ed2db27eb45b0cc6415ce7c314c Bisecting: 104 revisions left to test after this (roughly 7 steps) [c04d102ba56ee305791edab08958fa35f39a3f8b] doc: sfp-phylink: correct code indentation testing commit c04d102ba56ee305791edab08958fa35f39a3f8b with gcc (GCC) 8.1.0 kernel signature: 06c00c00818cb6fe1727383e74ae05ad97c80639733dd31e9ff4adac6669ce57 all runs: OK # git bisect bad c04d102ba56ee305791edab08958fa35f39a3f8b Bisecting: 52 revisions left to test after this (roughly 6 steps) [892e09153fa3564fcbf9f422760b61eba48c123e] net: ag71xx: port to phylink testing commit 892e09153fa3564fcbf9f422760b61eba48c123e with gcc (GCC) 8.1.0 kernel signature: 1444cf73acc11b8f9aac5eb11382862eb1c2b3e377f772dc2cfb73bcd893a175 all runs: crashed: WARNING in hsr_addr_subst_dest # git bisect good 892e09153fa3564fcbf9f422760b61eba48c123e Bisecting: 26 revisions left to test after this (roughly 5 steps) [8315f9b2dcb8c6eae9d3837ffcd09aa63ab34280] octeontx2-af: Set discovery ID for RVUM block testing commit 8315f9b2dcb8c6eae9d3837ffcd09aa63ab34280 with gcc (GCC) 8.1.0 kernel signature: 84f38c17f478c5f281ad27e33bc6ba9c04c851fb031b5954b82d66ee29d106f7 all runs: OK # git bisect bad 8315f9b2dcb8c6eae9d3837ffcd09aa63ab34280 Bisecting: 12 revisions left to test after this (roughly 4 steps) [207644f5138fb8e14debaa22f72adaa78c6a08cc] net: ip6_route: Replace zero-length array with flexible-array member testing commit 207644f5138fb8e14debaa22f72adaa78c6a08cc with gcc (GCC) 8.1.0 kernel signature: 777a5d0109795a74af8a2ec823a74c0861c02e7d482abd938b1b123a29b0130e all runs: OK # git bisect bad 207644f5138fb8e14debaa22f72adaa78c6a08cc Bisecting: 6 revisions left to test after this (roughly 3 steps) [68e2c37690b0da7539cfa2928bf1e4f50d88a1bb] Merge branch 'hsr-several-code-cleanup-for-hsr-module' testing commit 68e2c37690b0da7539cfa2928bf1e4f50d88a1bb with gcc (GCC) 8.1.0 kernel signature: 04a6e7a70aadd8a52f8bb048f419064c75f2e9e15967cd9b32f320efdc6213f0 all runs: OK # git bisect bad 68e2c37690b0da7539cfa2928bf1e4f50d88a1bb Bisecting: 2 revisions left to test after this (roughly 2 steps) [4b793acdca0050739b99ace6a8b9e7f717f57c6b] hsr: use netdev_err() instead of WARN_ONCE() testing commit 4b793acdca0050739b99ace6a8b9e7f717f57c6b with gcc (GCC) 8.1.0 kernel signature: c9a668f362b68719dbf05e3861f70e7707d97087dc360e230d56184bb3e96e3f all runs: OK # git bisect bad 4b793acdca0050739b99ace6a8b9e7f717f57c6b Bisecting: 0 revisions left to test after this (roughly 1 step) [13eeb5fea68e11765020b846ef692809c5fe04aa] hsr: use extack error message instead of netdev_info testing commit 13eeb5fea68e11765020b846ef692809c5fe04aa with gcc (GCC) 8.1.0 kernel signature: f806de5c4d82c718af0ba41b515aadbd863400a72f3a2fb7a3555fc82fcf76a6 all runs: crashed: WARNING in hsr_addr_subst_dest # git bisect good 13eeb5fea68e11765020b846ef692809c5fe04aa 4b793acdca0050739b99ace6a8b9e7f717f57c6b is the first bad commit commit 4b793acdca0050739b99ace6a8b9e7f717f57c6b Author: Taehee Yoo Date: Fri Feb 28 18:01:46 2020 +0000 hsr: use netdev_err() instead of WARN_ONCE() When HSR interface is sending a frame, it finds a node with the destination ethernet address from the list. If there is no node, it calls WARN_ONCE(). But, using WARN_ONCE() for this situation is a little bit overdoing. So, in this patch, the netdev_err() is used instead. Signed-off-by: Taehee Yoo Signed-off-by: David S. Miller net/hsr/hsr_framereg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) culprit signature: c9a668f362b68719dbf05e3861f70e7707d97087dc360e230d56184bb3e96e3f parent signature: f806de5c4d82c718af0ba41b515aadbd863400a72f3a2fb7a3555fc82fcf76a6 revisions tested: 16, total time: 3h36m49.713701132s (build: 1h41m15.215508627s, test: 1h53m31.733127743s) first good commit: 4b793acdca0050739b99ace6a8b9e7f717f57c6b hsr: use netdev_err() instead of WARN_ONCE() cc: ["ap420073@gmail.com" "davem@davemloft.net" "kuba@kernel.org" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"]