bisecting cause commit starting from a1281601f88e924a2e8c7572065d3e9fecf3c3fb building syzkaller on a8529b82fb3bb45832b08a099e7eb51707da9b37 testing commit a1281601f88e924a2e8c7572065d3e9fecf3c3fb with gcc (GCC) 10.2.1 20210217 kernel signature: 221799527ff33c1e74a06d9f56003a5e22868a3cae195fc8f052f65a23f3b270 all runs: crashed: WARNING: refcount bug in register_netdevice testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217 kernel signature: e99cd9f143ce9d9fcac692e506c1f42fd7bad007e669bcc2d658384620d3ab58 all runs: OK # git bisect start a1281601f88e924a2e8c7572065d3e9fecf3c3fb f40ddce88593482919761f74910f42f4b84c004b Bisecting: 6774 revisions left to test after this (roughly 13 steps) [d99676af540c2dc829999928fb81c58c80a1dce4] Merge tag 'drm-next-2021-02-19' of git://anongit.freedesktop.org/drm/drm testing commit d99676af540c2dc829999928fb81c58c80a1dce4 with gcc (GCC) 10.2.1 20210217 kernel signature: 5ad479128f117a1d38bc7ee59edcdb592a5fda3fb52cbc77b71fa4437ceb8a6d run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: boot failed: WARNING in kvm_wait # git bisect good d99676af540c2dc829999928fb81c58c80a1dce4 Bisecting: 3452 revisions left to test after this (roughly 12 steps) [69264b4a43aff7307283e2bae29e9305ab6b7d47] sparc: sparc64_defconfig: remove duplicate CONFIGs testing commit 69264b4a43aff7307283e2bae29e9305ab6b7d47 with gcc (GCC) 10.2.1 20210217 kernel signature: a1348bc0a1ba7d642de4d2f1e3f1999988a91b64ec33b19ebc35d81f7b0e1c83 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: boot failed: WARNING in kvm_wait run #9: boot failed: WARNING in kvm_wait # git bisect good 69264b4a43aff7307283e2bae29e9305ab6b7d47 Bisecting: 1726 revisions left to test after this (roughly 11 steps) [9afc1163794707a304f107bf21b8b37e5c6c34f4] Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit 9afc1163794707a304f107bf21b8b37e5c6c34f4 with gcc (GCC) 10.2.1 20210217 kernel signature: 56d2c29edf9ba43e712e24a4c208200b86487d94bf12efc9d6de137d4490d171 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: boot failed: WARNING in kvm_wait # git bisect good 9afc1163794707a304f107bf21b8b37e5c6c34f4 Bisecting: 908 revisions left to test after this (roughly 10 steps) [84c7f6c33f42a12eb036ebf0f0e3670799304120] hinic: avoid gcc -Wrestrict warning testing commit 84c7f6c33f42a12eb036ebf0f0e3670799304120 with gcc (GCC) 10.2.1 20210217 kernel signature: 0fa7d9d505e41795ffca2c0bc5c49eb21f5d653549efdd4163b2d50c90c4c285 run #0: crashed: WARNING: refcount bug in register_netdevice run #1: crashed: WARNING: refcount bug in register_netdevice run #2: crashed: WARNING: refcount bug in register_netdevice run #3: crashed: WARNING: refcount bug in register_netdevice run #4: crashed: WARNING: refcount bug in register_netdevice run #5: crashed: WARNING: refcount bug in register_netdevice run #6: crashed: WARNING: refcount bug in register_netdevice run #7: boot failed: WARNING in kvm_wait run #8: boot failed: WARNING in kvm_wait run #9: boot failed: WARNING in kvm_wait # git bisect bad 84c7f6c33f42a12eb036ebf0f0e3670799304120 Bisecting: 408 revisions left to test after this (roughly 9 steps) [e09a59555a3028564f3cb0d10c24ab86f50cbb79] mlxsw: spectrum_matchall: Pass matchall entry to sampling operations testing commit e09a59555a3028564f3cb0d10c24ab86f50cbb79 with gcc (GCC) 10.2.1 20210217 kernel signature: c8d6df1482eeb2468c7ecb250f6b6a762dfbe355ef355d29ca43fc9021130258 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: boot failed: WARNING in kvm_wait run #9: boot failed: WARNING in kvm_wait # git bisect good e09a59555a3028564f3cb0d10c24ab86f50cbb79 Bisecting: 204 revisions left to test after this (roughly 8 steps) [1690d8a75d873bf3c45ddce319f4902956d84bb0] net: ipa: sequencer type is for TX endpoints only testing commit 1690d8a75d873bf3c45ddce319f4902956d84bb0 with gcc (GCC) 10.2.1 20210217 kernel signature: ae6488479aea58dccd50ac687c1c225e36a294d4bc260798ee8b43717b27b287 all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 1690d8a75d873bf3c45ddce319f4902956d84bb0 Bisecting: 204 revisions left to test after this (roughly 8 steps) [010e269f91be8fc1436c753bfbbd9ce561151e71] net: dsa: sync up switchdev objects and port attributes when joining the bridge testing commit 010e269f91be8fc1436c753bfbbd9ce561151e71 with gcc (GCC) 10.2.1 20210217 kernel signature: 3b70d97bd9bf3861ec734f8bf07ad05cd82efe045c0b9e1f18ab084b0d8d7fd0 run #0: crashed: WARNING: refcount bug in register_netdevice run #1: crashed: WARNING: refcount bug in register_netdevice run #2: crashed: WARNING: refcount bug in register_netdevice run #3: crashed: WARNING: refcount bug in register_netdevice run #4: crashed: WARNING: refcount bug in register_netdevice run #5: crashed: WARNING in kvm_wait run #6: crashed: WARNING: refcount bug in register_netdevice run #7: boot failed: WARNING in kvm_wait run #8: boot failed: WARNING in kvm_wait run #9: boot failed: WARNING in kvm_wait # git bisect bad 010e269f91be8fc1436c753bfbbd9ce561151e71 Bisecting: 156 revisions left to test after this (roughly 7 steps) [9b761574fefcead1c9c86b338a321e7ef392b833] ionic: fix unchecked reference testing commit 9b761574fefcead1c9c86b338a321e7ef392b833 with gcc (GCC) 10.2.1 20210217 kernel signature: da53b42b84c3cada018462de0b00fc77ceb302bc811121705a367c4476b9930f run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: boot failed: WARNING in kvm_wait run #8: boot failed: WARNING in kvm_wait run #9: boot failed: WARNING in kvm_wait # git bisect good 9b761574fefcead1c9c86b338a321e7ef392b833 Bisecting: 78 revisions left to test after this (roughly 6 steps) [861aae786f2f7e1cab7926f7bb7783cb893e7edb] bnxt_en: Enhance retry of the first message to the firmware. testing commit 861aae786f2f7e1cab7926f7bb7783cb893e7edb with gcc (GCC) 10.2.1 20210217 kernel signature: c716337056c72d51283003cba55c0fb78916f2ca54e3b46403f33dfe594fc372 all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 861aae786f2f7e1cab7926f7bb7783cb893e7edb Bisecting: 78 revisions left to test after this (roughly 6 steps) [37537fa8e97379afa68959094242b1601407e205] net: ipa: define QSB limits in configuration data testing commit 37537fa8e97379afa68959094242b1601407e205 with gcc (GCC) 10.2.1 20210217 kernel signature: 8a93e4803ea347aa83214af28b2e9708bc5fb2af48f0cfa41c99cf5a0889a5ce run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: boot failed: WARNING in kvm_wait # git bisect good 37537fa8e97379afa68959094242b1601407e205 Bisecting: 60 revisions left to test after this (roughly 6 steps) [fc199d7c08c837095083e4c77678d9de1546945c] mlxsw: spectrum_router: Add nexthop trap action support testing commit fc199d7c08c837095083e4c77678d9de1546945c with gcc (GCC) 10.2.1 20210217 kernel signature: 63985faf2d581cc3aedb73b9ca55827b8110e185e1dd48ed45d27efece2ba55b all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip fc199d7c08c837095083e4c77678d9de1546945c Bisecting: 60 revisions left to test after this (roughly 6 steps) [c1efd50002c00cbe51014ddf357d55162cd7d6d8] mlxsw: spectrum_router: Avoid unnecessary neighbour updates testing commit c1efd50002c00cbe51014ddf357d55162cd7d6d8 with gcc (GCC) 10.2.1 20210217 kernel signature: 63985faf2d581cc3aedb73b9ca55827b8110e185e1dd48ed45d27efece2ba55b all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip c1efd50002c00cbe51014ddf357d55162cd7d6d8 Bisecting: 60 revisions left to test after this (roughly 6 steps) [b54eb093f5ce784ca00170d4512c47cdc755397e] dpaa2-switch: add support for configuring per port broadcast flooding testing commit b54eb093f5ce784ca00170d4512c47cdc755397e with gcc (GCC) 10.2.1 20210217 kernel signature: 63985faf2d581cc3aedb73b9ca55827b8110e185e1dd48ed45d27efece2ba55b run #0: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects run #1: boot failed: WARNING in kvm_wait run #2: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects run #3: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects run #4: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects run #5: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects run #6: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects run #7: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects run #8: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects run #9: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip b54eb093f5ce784ca00170d4512c47cdc755397e Bisecting: 60 revisions left to test after this (roughly 6 steps) [248136fa251abfbd862194175977afd57ab5e760] mlxsw: spectrum_router: Adjust comments on nexthop fields testing commit 248136fa251abfbd862194175977afd57ab5e760 with gcc (GCC) 10.2.1 20210217 kernel signature: 63985faf2d581cc3aedb73b9ca55827b8110e185e1dd48ed45d27efece2ba55b all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 248136fa251abfbd862194175977afd57ab5e760 Bisecting: 60 revisions left to test after this (roughly 6 steps) [21606584f1bb4c76aeb5a113e0e8a72681a270e4] ice: Add non-IP Layer2 protocol FDIR filter for AVF testing commit 21606584f1bb4c76aeb5a113e0e8a72681a270e4 with gcc (GCC) 10.2.1 20210217 kernel signature: ae6488479aea58dccd50ac687c1c225e36a294d4bc260798ee8b43717b27b287 all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 21606584f1bb4c76aeb5a113e0e8a72681a270e4 Bisecting: 60 revisions left to test after this (roughly 6 steps) [29017c643476daf57495c2ccd1a5fdc8dc5186ea] mlxsw: spectrum_router: Encapsulate nexthop update in a function testing commit 29017c643476daf57495c2ccd1a5fdc8dc5186ea with gcc (GCC) 10.2.1 20210217 kernel signature: 63985faf2d581cc3aedb73b9ca55827b8110e185e1dd48ed45d27efece2ba55b all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 29017c643476daf57495c2ccd1a5fdc8dc5186ea Bisecting: 60 revisions left to test after this (roughly 6 steps) [405a129f59384c474343d6261a2e0a75650d29a8] linux/qed: Mundane spelling fixes throughout the file testing commit 405a129f59384c474343d6261a2e0a75650d29a8 with gcc (GCC) 10.2.1 20210217 kernel signature: c716337056c72d51283003cba55c0fb78916f2ca54e3b46403f33dfe594fc372 all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 405a129f59384c474343d6261a2e0a75650d29a8 Bisecting: 60 revisions left to test after this (roughly 6 steps) [424603ccdd5eb00725f9080d7e8c018039816d17] mlxsw: spectrum_router: Rename nexthop update function to reflect its type testing commit 424603ccdd5eb00725f9080d7e8c018039816d17 with gcc (GCC) 10.2.1 20210217 kernel signature: 63985faf2d581cc3aedb73b9ca55827b8110e185e1dd48ed45d27efece2ba55b all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 424603ccdd5eb00725f9080d7e8c018039816d17 Bisecting: 60 revisions left to test after this (roughly 6 steps) [213528fed2f609a0d67f59337145057f63c5bb0b] ice: Add more FDIR filter type for AVF testing commit 213528fed2f609a0d67f59337145057f63c5bb0b with gcc (GCC) 10.2.1 20210217 kernel signature: ae6488479aea58dccd50ac687c1c225e36a294d4bc260798ee8b43717b27b287 all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 213528fed2f609a0d67f59337145057f63c5bb0b Bisecting: 60 revisions left to test after this (roughly 6 steps) [1be2361e3ca715cd9315c3c4ebede8cdcfcbf7d5] mlxsw: spectrum_router: Prepare for nexthops with trap action testing commit 1be2361e3ca715cd9315c3c4ebede8cdcfcbf7d5 with gcc (GCC) 10.2.1 20210217 kernel signature: 63985faf2d581cc3aedb73b9ca55827b8110e185e1dd48ed45d27efece2ba55b all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 1be2361e3ca715cd9315c3c4ebede8cdcfcbf7d5 Bisecting: 60 revisions left to test after this (roughly 6 steps) [3adffc762d5fa8f7d0087819839305a6fba68ced] Merge branch 'lantiq-xrx300-xrx330' testing commit 3adffc762d5fa8f7d0087819839305a6fba68ced with gcc (GCC) 10.2.1 20210217 kernel signature: 63985faf2d581cc3aedb73b9ca55827b8110e185e1dd48ed45d27efece2ba55b all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 3adffc762d5fa8f7d0087819839305a6fba68ced Bisecting: 60 revisions left to test after this (roughly 6 steps) [031d5c16065606efc387aa6865690037c13cefc4] mlxsw: spectrum_router: Introduce nexthop action field testing commit 031d5c16065606efc387aa6865690037c13cefc4 with gcc (GCC) 10.2.1 20210217 kernel signature: 63985faf2d581cc3aedb73b9ca55827b8110e185e1dd48ed45d27efece2ba55b all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 031d5c16065606efc387aa6865690037c13cefc4 Bisecting: 60 revisions left to test after this (roughly 6 steps) [0dbfbabb840d711d7ea1627d88afd0520f374a90] iavf: Add framework to enable ethtool ntuple filters testing commit 0dbfbabb840d711d7ea1627d88afd0520f374a90 with gcc (GCC) 10.2.1 20210217 kernel signature: ae6488479aea58dccd50ac687c1c225e36a294d4bc260798ee8b43717b27b287 all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 0dbfbabb840d711d7ea1627d88afd0520f374a90 Bisecting: 60 revisions left to test after this (roughly 6 steps) [5961d6a12c13df834343e56e37672169fe88756b] net: dsa: inherit the actual bridge port flags at join time testing commit 5961d6a12c13df834343e56e37672169fe88756b with gcc (GCC) 10.2.1 20210217 kernel signature: 0d57f0d8cda7b9b11da126e9c58111d0f268b67b2a86c3330e0ceb36e86ad686 run #0: crashed: WARNING: refcount bug in register_netdevice run #1: crashed: WARNING: refcount bug in register_netdevice run #2: crashed: WARNING: refcount bug in register_netdevice run #3: crashed: WARNING: refcount bug in register_netdevice run #4: crashed: WARNING: refcount bug in register_netdevice run #5: crashed: WARNING: refcount bug in register_netdevice run #6: crashed: WARNING: refcount bug in register_netdevice run #7: crashed: WARNING: refcount bug in register_netdevice run #8: crashed: WARNING: refcount bug in register_netdevice run #9: boot failed: WARNING in kvm_wait # git bisect bad 5961d6a12c13df834343e56e37672169fe88756b Bisecting: 60 revisions left to test after this (roughly 6 steps) [527691bf0682d7ddcca77fc17dabd2fa090572ff] iavf: Support IPv4 Flow Director filters testing commit 527691bf0682d7ddcca77fc17dabd2fa090572ff with gcc (GCC) 10.2.1 20210217 kernel signature: ae6488479aea58dccd50ac687c1c225e36a294d4bc260798ee8b43717b27b287 all runs: boot failed: WARNING: refcount bug in net_rx_queue_update_kobjects # git bisect skip 527691bf0682d7ddcca77fc17dabd2fa090572ff Bisecting: 60 revisions left to test after this (roughly 6 steps) [1fa81e259b49479fc54658a6e6c3ff629e35777a] igc: Remove unused MII_CR_SPEED testing commit 1fa81e259b49479fc54658a6e6c3ff629e35777a with gcc (GCC) 10.2.1 20210217 kernel signature: aa3c40ff6033794c2fb736ca35ced9cbae50cc4f4c9362748a3a769596b71930 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: boot failed: WARNING in kvm_wait run #9: boot failed: WARNING in kvm_wait # git bisect good 1fa81e259b49479fc54658a6e6c3ff629e35777a Bisecting: 58 revisions left to test after this (roughly 6 steps) [22f67cdfae6aaa7e841ced17207391fb368c8e9e] net: bridge: add helper to replay VLANs installed on port testing commit 22f67cdfae6aaa7e841ced17207391fb368c8e9e with gcc (GCC) 10.2.1 20210217 kernel signature: ea5479000d2a55d2bf5619874b245deb536dafc063a62992ebad3581d1f4dc4c run #0: crashed: WARNING: refcount bug in register_netdevice run #1: crashed: WARNING: refcount bug in register_netdevice run #2: crashed: WARNING: refcount bug in register_netdevice run #3: crashed: WARNING: refcount bug in register_netdevice run #4: crashed: WARNING: refcount bug in register_netdevice run #5: crashed: WARNING: refcount bug in register_netdevice run #6: crashed: WARNING: refcount bug in register_netdevice run #7: crashed: WARNING: refcount bug in register_netdevice run #8: crashed: WARNING: refcount bug in register_netdevice run #9: boot failed: WARNING in kvm_wait # git bisect bad 22f67cdfae6aaa7e841ced17207391fb368c8e9e Bisecting: 57 revisions left to test after this (roughly 6 steps) [80a9641f09f890a27a57e8ad30472553e0f769a6] bnxt_en: Improve wait for firmware commands completion revisions tested: 29, total time: 8h3m25.2664634s (build: 3h9m0.079190409s, test: 4h52m20.083249458s) error: bisection is taking too long (>8h0m0s), aborting