bisecting cause commit starting from dda2626b86c2c1813b7bfdd10d2fdd849611fc97 building syzkaller on aba2b2fb3544d9e42991237c13d8cada421deda5 testing commit dda2626b86c2c1813b7bfdd10d2fdd849611fc97 with gcc (GCC) 10.2.1 20210217 kernel signature: 252c0d26bae41f53ab4ce4c1a2b13753854516b4150f9534bfabec885d6980d1 all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.12 testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 with gcc (GCC) 10.2.1 20210217 kernel signature: 20a3195b0c2adea39c30d2e9f830a6fa425a34f031f28cd84a5fc4bf09ce8f4d all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217 kernel signature: 22b26ae1e3be417e2ad324e47433a262e845b6471dfc09f4fa2f647b3330df8e all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 10.2.1 20210217 kernel signature: 8f55ba93fd53951cac9b68b979c728becbef461543abacbe99727324ff41baf6 all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 10.2.1 20210217 kernel signature: f654d07eeb7c456b884d4afbd5bc4d393d1b1677ed42327eee0eaef482a1d4de all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.4.1 20210217 kernel signature: 1063ebaf54671db7804acf12269942e9a5933d00bfb78bb5cf898a218f3c1d07 all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.4.1 20210217 kernel signature: 3856a09b3d94850025e3ae49dd0f33b972955333e09df445983a6a278d85997d all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.4.1 20210217 kernel signature: a3b93acd1315ac27fd28df3f64d6ec371b03ab2c3dca6caf01eeb51039157802 all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.4.1 20210217 kernel signature: 56b75590080ebce41771eb20fb3a18a21250479d609f5cd866a9e9cf93705477 all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.4.1 20210217 kernel signature: c6858008ba2dd87e1e0dfa3f7b77c43b09b0dc43a2a0142524db4f19e9503c6e all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.4.1 20210217 kernel signature: aae18b99c108d4b86fb7c39080c3a8373862416e546d19d54d8a47dcb2701455 all runs: OK # git bisect start 219d54332a09e8d8741c1e1982f5eae56099de85 4d856f72c10ecb060868ed10ff1b1453943fc6c8 Bisecting: 7882 revisions left to test after this (roughly 13 steps) [a9f8b38a071b468276a243ea3ea5a0636e848cf2] Merge tag 'for-linus-5.4-1' of git://github.com/cminyard/linux-ipmi testing commit a9f8b38a071b468276a243ea3ea5a0636e848cf2 with gcc (GCC) 8.4.1 20210217 kernel signature: 83b4f3327ea3c3001ec7b29f31675c99c26946f51a1475c9677ced577a54f7b2 all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit # git bisect bad a9f8b38a071b468276a243ea3ea5a0636e848cf2 Bisecting: 3920 revisions left to test after this (roughly 12 steps) [fe38bd6862074c0a2b9be7f31f043aaa70b2af5f] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm testing commit fe38bd6862074c0a2b9be7f31f043aaa70b2af5f with gcc (GCC) 8.4.1 20210217 kernel signature: 7498a507ba1a1ac0e6b6a2f22dd923bd67a700e8281bacaddd4b8e62455374ad all runs: OK # git bisect good fe38bd6862074c0a2b9be7f31f043aaa70b2af5f Bisecting: 1962 revisions left to test after this (roughly 11 steps) [069841ef8293697e951c34f9a45601b77fb541d7] Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue testing commit 069841ef8293697e951c34f9a45601b77fb541d7 with gcc (GCC) 8.4.1 20210217 kernel signature: 49fb90eb6a9e60e2da9c031748d4fb14597e3a6b9ba27136ec84e68bad055ecd all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit # git bisect bad 069841ef8293697e951c34f9a45601b77fb541d7 Bisecting: 978 revisions left to test after this (roughly 10 steps) [f33bf6b00f20c9d26c42dfdaf8b83c2b0c1e6f71] net: stmmac: dwmac-meson: use devm_platform_ioremap_resource() to simplify code testing commit f33bf6b00f20c9d26c42dfdaf8b83c2b0c1e6f71 with gcc (GCC) 8.4.1 20210217 kernel signature: 45522a36c51050e0124ce0dce051e12246931b1bf7582edc3908e9911536e6de all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit # git bisect bad f33bf6b00f20c9d26c42dfdaf8b83c2b0c1e6f71 Bisecting: 489 revisions left to test after this (roughly 9 steps) [16e9b481e988b1f7e6df2243bb510e1c9b581272] nfp: no need to check return value of debugfs_create functions testing commit 16e9b481e988b1f7e6df2243bb510e1c9b581272 with gcc (GCC) 8.4.1 20210217 kernel signature: 908869d05d6fc2f3bad0e8594fee449235ce7288684e5b7b8b93d579374259df all runs: OK # git bisect good 16e9b481e988b1f7e6df2243bb510e1c9b581272 Bisecting: 244 revisions left to test after this (roughly 8 steps) [a4d2113e46c1d2ded1bfed9a19fe17b5ab2d584c] ipvlan: set hw_enc_features like macvlan testing commit a4d2113e46c1d2ded1bfed9a19fe17b5ab2d584c with gcc (GCC) 8.4.1 20210217 kernel signature: 73db64929a3753b939cd6b4b7bb0432c56189543247aba027dea1b0eeadc18f5 all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit # git bisect bad a4d2113e46c1d2ded1bfed9a19fe17b5ab2d584c Bisecting: 122 revisions left to test after this (roughly 7 steps) [043b8413e8c0c0ffbf8be268eb73716e05a96064] net: devlink: remove redundant rtnl lock assert testing commit 043b8413e8c0c0ffbf8be268eb73716e05a96064 with gcc (GCC) 8.4.1 20210217 kernel signature: 77258026530520bc4039cd8f5467ad0cb000932de92cf35d84ccff0f17570277 all runs: OK # git bisect good 043b8413e8c0c0ffbf8be268eb73716e05a96064 Bisecting: 68 revisions left to test after this (roughly 6 steps) [8d73f8f23e6b869b726cb01dd4747f56dc88660a] page_pool: fix logic in __page_pool_get_cached testing commit 8d73f8f23e6b869b726cb01dd4747f56dc88660a with gcc (GCC) 8.4.1 20210217 kernel signature: 7029aeef6b836a536266352cc24754f59de0dee55c52b36095c19011f086ab93 all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit # git bisect bad 8d73f8f23e6b869b726cb01dd4747f56dc88660a Bisecting: 25 revisions left to test after this (roughly 5 steps) [c162610c7db2e9611a7b3ec806f9c97fcfec0b0b] Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next testing commit c162610c7db2e9611a7b3ec806f9c97fcfec0b0b with gcc (GCC) 8.4.1 20210217 kernel signature: 0ee1551a7aa503241df7a724869cd8c0d85a02f9dbe8157af9a1022d58e9cd26 all runs: crashed: WARNING: suspicious RCU usage in vxlan_xmit # git bisect bad c162610c7db2e9611a7b3ec806f9c97fcfec0b0b Bisecting: 13 revisions left to test after this (roughly 4 steps) [2a475c409fe81a76fb26a6b023509d648237bbe6] kbuild: remove all netfilter headers from header-test blacklist. testing commit 2a475c409fe81a76fb26a6b023509d648237bbe6 with gcc (GCC) 8.4.1 20210217 kernel signature: b42d58e1ad0a18d0c1bbed39f046f90bd3501bbb7d1819eed5bc6ec65a49e011 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 2a475c409fe81a76fb26a6b023509d648237bbe6 Bisecting: 13 revisions left to test after this (roughly 4 steps) [65b27995a4ab8fc51b4adc6b4dcdca20f7a595bb] net: phy: let phy_speed_down/up support speeds >1Gbps testing commit 65b27995a4ab8fc51b4adc6b4dcdca20f7a595bb with gcc (GCC) 8.4.1 20210217 kernel signature: d8cab28a30e14bb066dd12f7b854e8f98690f2511b4f39da40a343cfb00f3a23 all runs: OK # git bisect good 65b27995a4ab8fc51b4adc6b4dcdca20f7a595bb Bisecting: 11 revisions left to test after this (roughly 4 steps) [20a9379d9a03ee0712d225035308973ecc5f6783] netfilter: remove "#ifdef __KERNEL__" guards from some headers. testing commit 20a9379d9a03ee0712d225035308973ecc5f6783 with gcc (GCC) 8.4.1 20210217 kernel signature: b42d58e1ad0a18d0c1bbed39f046f90bd3501bbb7d1819eed5bc6ec65a49e011 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 20a9379d9a03ee0712d225035308973ecc5f6783 Bisecting: 11 revisions left to test after this (roughly 4 steps) [1b90af292e71b20d03b837d39406acfbdc5d4b2a] ipvs: Improve robustness to the ipvs sysctl testing commit 1b90af292e71b20d03b837d39406acfbdc5d4b2a with gcc (GCC) 8.4.1 20210217 kernel signature: 9b26f9634bb7e0ebdfd4c4b0aceb572863ee84a51227bd797161f629c6a4ded8 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 1b90af292e71b20d03b837d39406acfbdc5d4b2a Bisecting: 11 revisions left to test after this (roughly 4 steps) [5785cf15fd74ec3b1a076fd39bc67382a8455fe7] netfilter: nf_tables: add missing prototypes. testing commit 5785cf15fd74ec3b1a076fd39bc67382a8455fe7 with gcc (GCC) 8.4.1 20210217 kernel signature: b42d58e1ad0a18d0c1bbed39f046f90bd3501bbb7d1819eed5bc6ec65a49e011 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 5785cf15fd74ec3b1a076fd39bc67382a8455fe7 Bisecting: 11 revisions left to test after this (roughly 4 steps) [d55d70894c6d4709b9ae61109a9fa7c319586b53] r8152: use alloc_pages for rx buffer testing commit d55d70894c6d4709b9ae61109a9fa7c319586b53 with gcc (GCC) 8.4.1 20210217 kernel signature: 16571d11cc15edbe656950ae12186fd0b3c6b6a5feeace7a7de8b8bb5b851b89 all runs: OK # git bisect good d55d70894c6d4709b9ae61109a9fa7c319586b53 Bisecting: 9 revisions left to test after this (roughly 3 steps) [0abc8bf4f2842e409926096f0fa009b468cbd855] netfilter: add missing IS_ENABLED(CONFIG_NF_CONNTRACK) checks to some header-files. testing commit 0abc8bf4f2842e409926096f0fa009b468cbd855 with gcc (GCC) 8.4.1 20210217 kernel signature: f3c2345cb12fcf9e1be6e351281f1656ea16851b4d53f48322cc02799de6521e all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 0abc8bf4f2842e409926096f0fa009b468cbd855 Bisecting: 9 revisions left to test after this (roughly 3 steps) [78458e3e08cda2aacaec9fde8c295dfc2f88618a] netfilter: add missing IS_ENABLED(CONFIG_NETFILTER) checks to some header-files. testing commit 78458e3e08cda2aacaec9fde8c295dfc2f88618a with gcc (GCC) 8.4.1 20210217 kernel signature: b42d58e1ad0a18d0c1bbed39f046f90bd3501bbb7d1819eed5bc6ec65a49e011 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 78458e3e08cda2aacaec9fde8c295dfc2f88618a Bisecting: 9 revisions left to test after this (roughly 3 steps) [7e59b3fea2a2510b52761c20ccc71d3e9f6b7db8] netfilter: remove unnecessary spaces testing commit 7e59b3fea2a2510b52761c20ccc71d3e9f6b7db8 with gcc (GCC) 8.4.1 20210217 kernel signature: 9b26f9634bb7e0ebdfd4c4b0aceb572863ee84a51227bd797161f629c6a4ded8 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 7e59b3fea2a2510b52761c20ccc71d3e9f6b7db8 Bisecting: 9 revisions left to test after this (roughly 3 steps) [47e640af2e492cc28778dd6f894d50313f7fba75] netfilter: add missing IS_ENABLED(CONFIG_NF_TABLES) check to header-file. testing commit 47e640af2e492cc28778dd6f894d50313f7fba75 with gcc (GCC) 8.4.1 20210217 kernel signature: 3f4ace053fff175a5a2790c3d1863f62c77009e68e4f6957f33b21b364b095d2 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 47e640af2e492cc28778dd6f894d50313f7fba75 Bisecting: 9 revisions left to test after this (roughly 3 steps) [105333435b4f3b21ffc325f32fae17719310db64] netfilter: connlabels: prefer static lock initialiser testing commit 105333435b4f3b21ffc325f32fae17719310db64 with gcc (GCC) 8.4.1 20210217 kernel signature: 08dee267607d9dcba228157ccae3005a628d4377053b25c41cddeaaa2da0e781 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 105333435b4f3b21ffc325f32fae17719310db64 Bisecting: 9 revisions left to test after this (roughly 3 steps) [9211bfbff80a7604273086fec5685efcdc10be2b] netfilter: add missing IS_ENABLED(CONFIG_BRIDGE_NETFILTER) checks to header-file. testing commit 9211bfbff80a7604273086fec5685efcdc10be2b with gcc (GCC) 8.4.1 20210217 kernel signature: 3f4ace053fff175a5a2790c3d1863f62c77009e68e4f6957f33b21b364b095d2 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 9211bfbff80a7604273086fec5685efcdc10be2b Bisecting: 9 revisions left to test after this (roughly 3 steps) [b753c5a7f99f390fc100de18647ce0dcacdceafc] Merge branch 'r8152-RX-improve' testing commit b753c5a7f99f390fc100de18647ce0dcacdceafc with gcc (GCC) 8.4.1 20210217 kernel signature: e1780ab4048df7ca0933a5269aa008a95f5516a3b7c51acae21544226bcc26cd all runs: OK # git bisect good b753c5a7f99f390fc100de18647ce0dcacdceafc Bisecting: 8 revisions left to test after this (roughly 3 steps) [a1b2f04ea527397fcacacd09e0d690927feef429] netfilter: add missing includes to a number of header-files. testing commit a1b2f04ea527397fcacacd09e0d690927feef429 with gcc (GCC) 8.4.1 20210217 kernel signature: 3f4ace053fff175a5a2790c3d1863f62c77009e68e4f6957f33b21b364b095d2 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip a1b2f04ea527397fcacacd09e0d690927feef429 Bisecting: 8 revisions left to test after this (roughly 3 steps) [0a30ba509fdeea740bedb81ce3bee4f74a759654] netfilter: nf_nat_proto: make tables static testing commit 0a30ba509fdeea740bedb81ce3bee4f74a759654 with gcc (GCC) 8.4.1 20210217 kernel signature: 37318c859d78dc5a6c097780554a670555d2d17306f64bf1116fb3b427c6aae4 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 0a30ba509fdeea740bedb81ce3bee4f74a759654 Bisecting: 8 revisions left to test after this (roughly 3 steps) [bd96b4c75675e616eefef6d85d163530eef9c5e5] netfilter: inline four headers files into another one. testing commit bd96b4c75675e616eefef6d85d163530eef9c5e5 with gcc (GCC) 8.4.1 20210217 kernel signature: 9a3746ff261c1fa661da1c113b92c9e5bb7c2a67da5bc5771a9573013266fa39 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip bd96b4c75675e616eefef6d85d163530eef9c5e5 Bisecting: 8 revisions left to test after this (roughly 3 steps) [bd8699e9e29287b5571b32b68c3dcd05985fa9b1] netfilter: nft_bitwise: add offload support revisions tested: 36, total time: 8h14m46.686021348s (build: 4h0m26.034689263s, test: 4h9m5.329151004s) error: bisection is taking too long (>8h0m0s), aborting