bisecting cause commit starting from 11a48a5a18c63fd7621bb050228cebf13566e4d8 building syzkaller on 2b41159686513694e75f8c376b4a32c66c8b709f testing commit 11a48a5a18c63fd7621bb050228cebf13566e4d8 with gcc (GCC) 8.1.0 kernel signature: 156b662dfef44fbbf00a45c7295059815e8058c35f4fe60d056741db24f2efa9 run #0: crashed: possible deadlock in console_unlock run #1: crashed: possible deadlock in console_unlock run #2: crashed: possible deadlock in console_unlock run #3: crashed: possible deadlock in console_unlock run #4: crashed: possible deadlock in console_unlock run #5: crashed: possible deadlock in tty_port_close_start run #6: crashed: possible deadlock in console_unlock run #7: crashed: possible deadlock in console_unlock run #8: crashed: possible deadlock in console_unlock run #9: crashed: possible deadlock in console_unlock testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0 kernel signature: d90af496541b9a30d879076b32ab78b8253afeb7788ec758770b01cc27ef48a3 all runs: crashed: possible deadlock in console_unlock testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0 kernel signature: d1c7662fa8a5fc313e26c0415b298dc455b7d81e2efec627bdcbeed35a466691 run #0: crashed: possible deadlock in console_unlock run #1: crashed: possible deadlock in console_unlock run #2: crashed: possible deadlock in console_unlock run #3: crashed: possible deadlock in console_unlock run #4: crashed: possible deadlock in console_unlock run #5: crashed: possible deadlock in tty_port_close_start run #6: crashed: possible deadlock in console_unlock run #7: crashed: possible deadlock in tty_port_close_start run #8: crashed: possible deadlock in console_unlock run #9: crashed: possible deadlock in console_unlock testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0 kernel signature: bce83874a10320e1a77c2ebbdb4c9e18115cd5bf52d72c207248b3433ca79565 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) 8.1.0 kernel signature: a6e28dfc7608f35da61a204527ba08a09b24de9c7e05eef724c30f7c53f51d00 all runs: crashed: possible deadlock in console_unlock # 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) 8.1.0 kernel signature: a78c07979d4c2ccee33016bff94ea532da395805e50c1db28991410f36b2caa2 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) 8.1.0 kernel signature: 028ff9d09bbe1b0dd500f27d0057eced886d9ce7f402410a58d00f69941e793b all runs: crashed: possible deadlock in console_unlock # 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) 8.1.0 kernel signature: e853c59175d1bab7fc1a7cdc24f38913099ca5576d20814c248e2f989fde047a run #0: crashed: possible deadlock in console_unlock run #1: crashed: possible deadlock in tty_port_close_start run #2: crashed: possible deadlock in console_unlock run #3: crashed: possible deadlock in console_unlock run #4: crashed: possible deadlock in console_unlock run #5: crashed: possible deadlock in console_unlock run #6: crashed: possible deadlock in console_unlock run #7: crashed: possible deadlock in console_unlock run #8: crashed: possible deadlock in console_unlock run #9: crashed: possible deadlock in console_unlock # 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) 8.1.0 kernel signature: 7d0cb5068d36291cf1861160853d7c2bb14ca51a78c85767229aee8b278095ae 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) 8.1.0 kernel signature: 6e454550cbe11155206db9819acf46c6a17bcac884b3f0e648e600b0313b35d8 run #0: crashed: possible deadlock in tty_port_close_start run #1: crashed: possible deadlock in console_unlock run #2: crashed: possible deadlock in tty_port_close_start run #3: crashed: possible deadlock in console_unlock run #4: crashed: possible deadlock in console_unlock run #5: crashed: possible deadlock in console_unlock run #6: crashed: possible deadlock in console_unlock run #7: crashed: possible deadlock in console_unlock run #8: crashed: possible deadlock in console_unlock run #9: crashed: possible deadlock in console_unlock # 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) 8.1.0 kernel signature: 77eb53ba85d08c7eb82edf77c3b0adc276a1522c14b22a3ccb464f25e5ee476f 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) 8.1.0 kernel signature: 190caa030969c9e4d633778ba9e76d3dda6b8b8e069ae8f89b1087a913af2332 all runs: crashed: possible deadlock in console_unlock # 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) 8.1.0 kernel signature: d0c6cad9b89683e5cea908508cbb1a4b62f71e94caaa2c6b562d7226f8d79fb7 run #0: crashed: possible deadlock in console_unlock run #1: crashed: possible deadlock in console_unlock run #2: crashed: possible deadlock in console_unlock run #3: crashed: possible deadlock in console_unlock run #4: crashed: possible deadlock in console_unlock run #5: crashed: possible deadlock in console_unlock run #6: crashed: possible deadlock in console_unlock run #7: crashed: possible deadlock in console_unlock run #8: crashed: possible deadlock in console_unlock run #9: crashed: possible deadlock in tty_port_close_start # 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) 8.1.0 kernel signature: 380134b2a31c6c9bc5af43bbfc9585d1a98c22a9f5863409e573bd771275a7a7 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) 8.1.0 kernel signature: f82964cc1a56b8a8ba97f783df4ee735d629e567e12134f62cb693687117c36d 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) 8.1.0 kernel signature: e503375a604ed8670b0be819fb5e7cff75f2d7a07ec1282e33adb7e640e57e96 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) 8.1.0 kernel signature: 0f9e7100f9404382665c4c8226f683180f41800edbb3300ad04f0b642a2016fd 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) 8.1.0 kernel signature: a9414d2f53b229d34c9a48f0fe618e002aac8424c51e14f69c619db7b168c4cc 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) 8.1.0 kernel signature: e812570ab13357ed1b111de5289bb75a18fc437fea1e12ce9213ab4051c08dd3 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) 8.1.0 kernel signature: 9f672c4138dbcaeef47dbc530ccff120e1b401bf76bfcc5d57819567caef850c 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) 8.1.0 kernel signature: c772ebc95c0f23dad78be65c8ec13312160c769286cf61d4d5c326608b305343 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) 8.1.0 kernel signature: ce27a0537f558010da8ec10465660774ee8a58d08949a5b9439bf614aacdede5 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) 8.1.0 kernel signature: 68f2bb0ae9234bc21312d1fe4cbadade4173a0042e9ed6c938eacfbb59783662 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) 8.1.0 kernel signature: da37c1214f1e3848916931f36d5d19e01958958d0323d27775bea0b00d9215d9 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) 8.1.0 kernel signature: 40d74da27279744d59f2af6d1d38bff419cf175cd414c26920743b004f350e88 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) 8.1.0 kernel signature: ee91f009b979ad6b23d37e6775f3985c4bd43abaad626bffe1b68a148ebbfd2b 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) 8.1.0 kernel signature: f022f0a1f13a07e45a37b8612022f2464bf3bb30807497566d7e2ce76a0f99a2 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) 8.1.0 kernel signature: 2e46ddf61b00aa4212a6ac6bde5312fc0c5145e803940c990c4946cf90363c16 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) 8.1.0 kernel signature: ffa26b73c2091f6d1ffd4089825ebdc663cc94f6cc31896928a6ec18e2d36dc4 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 testing commit bd8699e9e29287b5571b32b68c3dcd05985fa9b1 with gcc (GCC) 8.1.0 kernel signature: b76add75bd4829d1d1da81ad7da5ae61c69213e639365b4a1b3271e2e0048363 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip bd8699e9e29287b5571b32b68c3dcd05985fa9b1 Bisecting: 8 revisions left to test after this (roughly 3 steps) [43dd16efc7f235f153804500a4363769bd2276fc] netfilter: nf_tables: store data in offload context registers testing commit 43dd16efc7f235f153804500a4363769bd2276fc with gcc (GCC) 8.1.0 kernel signature: ec8423765e418f4f1cd75d8bbfd5afe339565b642363e5f73d4a5c25df49df28 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 43dd16efc7f235f153804500a4363769bd2276fc Bisecting: 8 revisions left to test after this (roughly 3 steps) [e84fb4b3666dabd3917952fb33588daa891a6ad3] netfilter: conntrack: use shared sysctl constants testing commit e84fb4b3666dabd3917952fb33588daa891a6ad3 with gcc (GCC) 8.1.0 kernel signature: d0745ed15802fcbe62a8d6741c4d6e885db5507200086891bbe634ad209475e5 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip e84fb4b3666dabd3917952fb33588daa891a6ad3 Bisecting: 8 revisions left to test after this (roughly 3 steps) [8c0bb7873815bf8c3c4dfb24e8ebf4fefb4c35d2] netfilter: synproxy: rename mss synproxy_options field testing commit 8c0bb7873815bf8c3c4dfb24e8ebf4fefb4c35d2 with gcc (GCC) 8.1.0 kernel signature: 0abede6872935b08b1a37a147bfe865d2436f3f76c2472816d899edb2037b796 all runs: boot failed: general protection fault in dma_direct_max_mapping_size # git bisect skip 8c0bb7873815bf8c3c4dfb24e8ebf4fefb4c35d2 There are only 'skip'ped commits left to test. The first bad commit could be any of: 9211bfbff80a7604273086fec5685efcdc10be2b 47e640af2e492cc28778dd6f894d50313f7fba75 a1b2f04ea527397fcacacd09e0d690927feef429 0abc8bf4f2842e409926096f0fa009b468cbd855 bd96b4c75675e616eefef6d85d163530eef9c5e5 43dd16efc7f235f153804500a4363769bd2276fc 78458e3e08cda2aacaec9fde8c295dfc2f88618a 20a9379d9a03ee0712d225035308973ecc5f6783 bd8699e9e29287b5571b32b68c3dcd05985fa9b1 2a475c409fe81a76fb26a6b023509d648237bbe6 7e59b3fea2a2510b52761c20ccc71d3e9f6b7db8 1b90af292e71b20d03b837d39406acfbdc5d4b2a 5785cf15fd74ec3b1a076fd39bc67382a8455fe7 0a30ba509fdeea740bedb81ce3bee4f74a759654 e84fb4b3666dabd3917952fb33588daa891a6ad3 105333435b4f3b21ffc325f32fae17719310db64 8c0bb7873815bf8c3c4dfb24e8ebf4fefb4c35d2 c162610c7db2e9611a7b3ec806f9c97fcfec0b0b We cannot bisect more! revisions tested: 33, total time: 8h48m24.373457116s (build: 3h34m25.48458266s, test: 5h11m32.539662773s) bisection is inconclusive, the first bad commit could be any of: 9211bfbff80a7604273086fec5685efcdc10be2b 47e640af2e492cc28778dd6f894d50313f7fba75 a1b2f04ea527397fcacacd09e0d690927feef429 0abc8bf4f2842e409926096f0fa009b468cbd855 bd96b4c75675e616eefef6d85d163530eef9c5e5 43dd16efc7f235f153804500a4363769bd2276fc 78458e3e08cda2aacaec9fde8c295dfc2f88618a 20a9379d9a03ee0712d225035308973ecc5f6783 bd8699e9e29287b5571b32b68c3dcd05985fa9b1 2a475c409fe81a76fb26a6b023509d648237bbe6 7e59b3fea2a2510b52761c20ccc71d3e9f6b7db8 1b90af292e71b20d03b837d39406acfbdc5d4b2a 5785cf15fd74ec3b1a076fd39bc67382a8455fe7 0a30ba509fdeea740bedb81ce3bee4f74a759654 e84fb4b3666dabd3917952fb33588daa891a6ad3 105333435b4f3b21ffc325f32fae17719310db64 8c0bb7873815bf8c3c4dfb24e8ebf4fefb4c35d2 c162610c7db2e9611a7b3ec806f9c97fcfec0b0b