bisecting cause commit starting from d03154e8bb6a9830c4d3c4a993f964c8518c7bfa building syzkaller on 7df34f59bca2c74f1dfa5c198b94577cf918cbb2 testing commit d03154e8bb6a9830c4d3c4a993f964c8518c7bfa with gcc (GCC) 8.1.0 kernel signature: ae97c802e4dfc4a880ac0ee0142a15ac8977b335494e6a62761f6d514d89a9dd all runs: crashed: WARNING in cfg80211_change_iface testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 8.1.0 kernel signature: 0ac21c7bec8a01fc2233fe2faf9cb6641f5d6068f7226445cdb28206bf6f01d9 all runs: OK # git bisect start d03154e8bb6a9830c4d3c4a993f964c8518c7bfa 2c85ebc57b3e1817b6ce1a6b703928e113a90442 Bisecting: 10868 revisions left to test after this (roughly 13 steps) [48c1c40ab40cb087b992e7b77518c3a2926743cc] Merge tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit 48c1c40ab40cb087b992e7b77518c3a2926743cc with gcc (GCC) 8.1.0 kernel signature: 857e6da451ec09763e2043f15c09b8d755957794c179f2ec3d513fc92badb1c0 all runs: OK # git bisect good 48c1c40ab40cb087b992e7b77518c3a2926743cc Bisecting: 5438 revisions left to test after this (roughly 12 steps) [3e40ad39e3080ed7835adf5cd4482d844b3a3938] Merge remote-tracking branch 'v9fs/9p-next' testing commit 3e40ad39e3080ed7835adf5cd4482d844b3a3938 with gcc (GCC) 8.1.0 kernel signature: 10b8bf5993513aa9b88f543611724fa0a5c0147a7e02704b8c0d6096d7d5a3ec all runs: OK # git bisect good 3e40ad39e3080ed7835adf5cd4482d844b3a3938 Bisecting: 2647 revisions left to test after this (roughly 11 steps) [7a09577d80bb5632893a32cbbc6ca7cb29cc080f] Merge remote-tracking branch 'drm/drm-next' testing commit 7a09577d80bb5632893a32cbbc6ca7cb29cc080f with gcc (GCC) 8.1.0 kernel signature: 0a79f52e52a5517ac8e90f8d2cc6659b607c9703ade395f46b0597c8ccaea1cc all runs: crashed: WARNING in cfg80211_change_iface # git bisect bad 7a09577d80bb5632893a32cbbc6ca7cb29cc080f Bisecting: 1305 revisions left to test after this (roughly 11 steps) [7426957d237f03932c2673754af5c8a88c7cd3da] Merge remote-tracking branch 'net-next/master' testing commit 7426957d237f03932c2673754af5c8a88c7cd3da with gcc (GCC) 8.1.0 kernel signature: c1a2096dbdcfedda5e3d49d2f2a32d12546c1a5dc5df183d24db25ce3228d928 all runs: OK # git bisect good 7426957d237f03932c2673754af5c8a88c7cd3da Bisecting: 617 revisions left to test after this (roughly 9 steps) [fb5cfcaa2efbb4c71abb1dfbc8f4da727e0bfd89] Merge tag 'drm-intel-gt-next-2021-01-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-next testing commit fb5cfcaa2efbb4c71abb1dfbc8f4da727e0bfd89 with gcc (GCC) 8.1.0 kernel signature: c8b74b7b8134ee65fa36e30edd8a38fb02469ff9344cd21d419a1a46af81ab42 all runs: OK # git bisect good fb5cfcaa2efbb4c71abb1dfbc8f4da727e0bfd89 Bisecting: 334 revisions left to test after this (roughly 8 steps) [a6b8720c2f85143561c3453e1cf928a2f8586ac0] Merge tag 'amd-drm-next-5.12-2021-01-20' of https://gitlab.freedesktop.org/agd5f/linux into drm-next testing commit a6b8720c2f85143561c3453e1cf928a2f8586ac0 with gcc (GCC) 8.1.0 kernel signature: 869ed4289a5793f0aec953d75c103eb7864d7c390a6ab55643deb652beb7c3e3 all runs: OK # git bisect good a6b8720c2f85143561c3453e1cf928a2f8586ac0 Bisecting: 164 revisions left to test after this (roughly 7 steps) [89efb0516bec39e2788f25daefea411c6c7d71f1] Merge remote-tracking branch 'nand/nand/next' testing commit 89efb0516bec39e2788f25daefea411c6c7d71f1 with gcc (GCC) 8.1.0 kernel signature: c508a57ed6ac381c24acf8fd2e31d1b422f6fa632a3c46df752cc4d076034c4b all runs: crashed: WARNING in cfg80211_change_iface # git bisect bad 89efb0516bec39e2788f25daefea411c6c7d71f1 Bisecting: 85 revisions left to test after this (roughly 6 steps) [f5bacc4440e12808c6e8a86446a524863bbf9bee] Merge remote-tracking branch 'wireless-drivers-next/master' testing commit f5bacc4440e12808c6e8a86446a524863bbf9bee with gcc (GCC) 8.1.0 kernel signature: e18715b63bf9c5a6ebae1b1cc28491c55cee3f641cc1c09434711a2743b45491 all runs: OK # git bisect good f5bacc4440e12808c6e8a86446a524863bbf9bee Bisecting: 47 revisions left to test after this (roughly 6 steps) [fb246bf8015e56b6d1ed624f7278447429a7774e] Merge remote-tracking branch 'bluetooth/master' testing commit fb246bf8015e56b6d1ed624f7278447429a7774e with gcc (GCC) 8.1.0 kernel signature: 84d6a0da9c9d7d2ea917160c793e115240be441524157ef6f2eae256fe6c6a8c all runs: OK # git bisect good fb246bf8015e56b6d1ed624f7278447429a7774e Bisecting: 23 revisions left to test after this (roughly 5 steps) [d3b9b45f7e981bcc6355414c63633fe33d95660c] mac80211: minstrel_ht: fix regression in the max_prob_rate fix testing commit d3b9b45f7e981bcc6355414c63633fe33d95660c with gcc (GCC) 8.1.0 kernel signature: 14e862d41144ee257e5c7542ed1416f6b0228c9a219c92caaa59f304d258d627 all runs: crashed: WARNING in cfg80211_change_iface # git bisect bad d3b9b45f7e981bcc6355414c63633fe33d95660c Bisecting: 11 revisions left to test after this (roughly 4 steps) [f84de063985a6f8e3adb0c0b409ca51452b4def0] mac80211: minstrel_ht: clean up CCK code testing commit f84de063985a6f8e3adb0c0b409ca51452b4def0 with gcc (GCC) 8.1.0 kernel signature: 33269d113ba64beedf6deb30dfb6db0c83986cc0590dec8c9a964fe245e4b9aa all runs: OK # git bisect good f84de063985a6f8e3adb0c0b409ca51452b4def0 Bisecting: 5 revisions left to test after this (roughly 3 steps) [a7fca4e4037f7e3fa84d4532ea0fd8b00c39c7a2] mac80211: minstrel_ht: fix max probability rate selection testing commit a7fca4e4037f7e3fa84d4532ea0fd8b00c39c7a2 with gcc (GCC) 8.1.0 kernel signature: d840fcc0220571ccb31ff6277f9394a75343841b244de5800618ac255622c740 all runs: OK # git bisect good a7fca4e4037f7e3fa84d4532ea0fd8b00c39c7a2 Bisecting: 2 revisions left to test after this (roughly 2 steps) [2fe8ef106238b274c505c480ecf00d8765abf0d8] cfg80211: change netdev registration/unregistration semantics testing commit 2fe8ef106238b274c505c480ecf00d8765abf0d8 with gcc (GCC) 8.1.0 net/wireless/core.c:1328:34: error: 'struct wiphy' has no member named 'mtx' # git bisect skip 2fe8ef106238b274c505c480ecf00d8765abf0d8 Bisecting: 2 revisions left to test after this (roughly 2 steps) [a05829a7222e9d10c416dd2dbbf3929fe6646b89] cfg80211: avoid holding the RTNL when calling the driver testing commit a05829a7222e9d10c416dd2dbbf3929fe6646b89 with gcc (GCC) 8.1.0 kernel signature: 768396fe032101f10d08d6a172a8fa3b4b40922ebc9f62ef88ce8a91196b7fb7 all runs: basic kernel testing failed: possible deadlock in cfg80211_netdev_notifier_call # git bisect skip a05829a7222e9d10c416dd2dbbf3929fe6646b89 Bisecting: 2 revisions left to test after this (roughly 2 steps) [347c2989a8ba8a231f2ffc0635f2f36fedd30bde] mac80211: minstrel_ht: fix rounding error in throughput calculation testing commit 347c2989a8ba8a231f2ffc0635f2f36fedd30bde with gcc (GCC) 8.1.0 kernel signature: 556c796aa77c369dd264a1aed321a05bba2c89d96422f9f50b53ca91606a619a all runs: OK # git bisect good 347c2989a8ba8a231f2ffc0635f2f36fedd30bde Bisecting: 1 revision left to test after this (roughly 1 step) [38ec7c6b6bd69b9ccc1873b9f465d4f16b46b26e] virt_wifi: fix deadlock on RTNL testing commit 38ec7c6b6bd69b9ccc1873b9f465d4f16b46b26e with gcc (GCC) 8.1.0 kernel signature: 5de3d6d3b51ac0138baaa4551955b7d68d2bb3a87a67eced0391291c8db7a0e5 all runs: crashed: WARNING in cfg80211_change_iface # git bisect bad 38ec7c6b6bd69b9ccc1873b9f465d4f16b46b26e There are only 'skip'ped commits left to test. The first bad commit could be any of: 2fe8ef106238b274c505c480ecf00d8765abf0d8 a05829a7222e9d10c416dd2dbbf3929fe6646b89 38ec7c6b6bd69b9ccc1873b9f465d4f16b46b26e We cannot bisect more! revisions tested: 17, total time: 3h18m26.877305976s (build: 1h24m37.421221456s, test: 1h51m16.207291192s) bisection is inconclusive, the first bad commit could be any of: 2fe8ef106238b274c505c480ecf00d8765abf0d8 a05829a7222e9d10c416dd2dbbf3929fe6646b89 38ec7c6b6bd69b9ccc1873b9f465d4f16b46b26e