bisecting cause commit starting from 625acffd7ae2c52898d249e6c5c39f348db0d8df
building syzkaller on 9d2ab5dfe7727dfea4b9b279f4edf731acb386ef
testing commit 625acffd7ae2c52898d249e6c5c39f348db0d8df with gcc (GCC) 10.2.1 20210217
kernel signature: 38ed87a6ab91987199925d34dded79c8532c148449b7ed305f466549f4768fc5
run #0: crashed: BUG: sleeping function called from invalid context in lock_sock_nested
run #1: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #2: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #3: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #4: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #5: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #6: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #7: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #8: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #9: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #10: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #11: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #12: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: crashed: WARNING: locking bug in do_ipv6_setsockopt
testing release v5.12
testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 with gcc (GCC) 10.2.1 20210217
kernel signature: d440b4cda7d2ab4e7a9fb717e84bf516b6131e0226170a2accac2a704eba3a26
run #0: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #1: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #2: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #3: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #4: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #5: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #6: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #7: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #8: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #9: OK
testing release v5.11
testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217
kernel signature: 765cd1540c326c0950c950fbd0fec8db62a5661f5639cb7fd27d9b0db4d90c60
run #0: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #1: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #2: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #3: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #4: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #5: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #6: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #7: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #8: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #9: OK
testing release v5.10
testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 10.2.1 20210217
kernel signature: df7feb4d91f8944dbc6f04c6ce0d62cee0e23c247a3d664c8d09e4380a1d4db4
run #0: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #1: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #2: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #3: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #4: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #5: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #6: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #7: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #8: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #9: OK
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 10.2.1 20210217
kernel signature: 729377365c17b92d66ed1bdf532053d69e13d473b5ea80ef6b5eacb7eb88528b
all runs: crashed: WARNING: locking bug in do_ipv6_setsockopt
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.4.1 20210217
kernel signature: fe4cf10963fe22623041f7dd2621a870da3a6c1c0337ee4720a2074a1ed96570
all runs: crashed: WARNING: locking bug in do_ipv6_setsockopt
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.4.1 20210217
kernel signature: 2c6056a2dfdd16b432db0590dcf44d9466ab6d94a2975fdc54052aff1a1c3cf4
run #0: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #1: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #2: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #3: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #4: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #5: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #6: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #7: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #8: OK
run #9: OK
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.4.1 20210217
kernel signature: 3e55c7c138041a575a7239b7dc3aeb1b6aecc1db234951c50f555812908a4b2a
run #0: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #1: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #2: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #3: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #4: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #5: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #6: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #7: OK
run #8: OK
run #9: OK
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.4.1 20210217
kernel signature: 89020a51f26df558b213c9a7dfe9c7402f92181b93c6cc34e4d3b9095dbeeada
run #0: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #1: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #2: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #3: crashed: WARNING: locking bug in do_ipv6_setsockopt
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
reproducer seems to be flaky
testing release v5.4
testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.4.1 20210217
kernel signature: 34b0d7a7eede4147416f7de3ea9702c5c9ff39168af217389162232a1e920b4c
all runs: crashed: WARNING: locking bug in do_ipv6_setsockopt
testing release v5.3
testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.4.1 20210217
kernel signature: 90c927f3427843a3c6552973063dfc92d95e46afa59f99de25a5f09fa1b925e8
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: 3fee8b6b4f62319c545f98fae4b61bf760ce74ef0bc513d390f2a7c6bf46b922
all runs: crashed: WARNING: locking bug in do_ipv6_setsockopt
# 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: e8bb5ab54ae430097d68e91e1efca5c2c4bfd4580a917385f4cf89a0d40a47d2
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: 29499bc6fd4e9200d37e895b76a3ec2c61897e8fbf2b14de241efc9cc721ce81
all runs: crashed: WARNING: locking bug in do_ipv6_setsockopt
# 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: 82b4d606609f615a26f7f3800fb326e28633b5a70f30b1db3617a602ee524397
all runs: crashed: WARNING: locking bug in do_ipv6_setsockopt
# 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: 4bd018b380fc3088966f440b4d7c9cea61eb385f1fd206c751cae3f0951a7393
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: 4c67f2c4c0ef19005d96a386d27a38a93fe1a9282fb7e42f9c69d0d611b3d3d6
all runs: crashed: WARNING: locking bug in do_ipv6_setsockopt
# 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: 2624076dd433730366ccebe1252541e1a398ae47c903ffa362f84924b789a6d8
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: 90f7971a674521c9638d3a9d8434053ab3a85615051d200b685588796a7971fa
all runs: crashed: WARNING: locking bug in do_ipv6_setsockopt
# 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: 4706b79153ff4cdc7a0a997ff7d7fcebeb551eff53435843a51bb53070aa5bd0
all runs: crashed: WARNING: locking bug in do_ipv6_setsockopt
# 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: 0393a8af7fb0c8a015764d3f8282cb2c8b0cc472cdd0b2fe7bc04efc0aed0c55
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: a2cc56fae94e6981fa15517bc8a852f7b7dbbe6af97ed1945d1e778338a8360e
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: 0393a8af7fb0c8a015764d3f8282cb2c8b0cc472cdd0b2fe7bc04efc0aed0c55
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: 72eaa72b74efdaf4bd5ade34a4883e12fd921ede886802f13ef9adc233c0db40
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: 0393a8af7fb0c8a015764d3f8282cb2c8b0cc472cdd0b2fe7bc04efc0aed0c55
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: 1ad78243d4ff27075a16f79a3d86448826097be0bc9241e8fb19312742f044dd
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: cb46598951296dff92bc579b2a0c0fc6c84ca246912f4c1443c9ebddae446dfa
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: 0393a8af7fb0c8a015764d3f8282cb2c8b0cc472cdd0b2fe7bc04efc0aed0c55
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: 72eaa72b74efdaf4bd5ade34a4883e12fd921ede886802f13ef9adc233c0db40
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: 53a7f044ce36f62a9fd39efb3c804eba3a563cd9a76b643adb4a4b36b55130b6
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: 4d241288ae824d97fb5463aeb5dd8893a6bfb74658ffd380dd6c867a055ff398
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.

Reproducer flagged being flaky
revisions tested: 31, total time: 8h4m46.97798204s (build: 3h18m35.560338586s, test: 4h42m13.732283715s)
error: bisection is taking too long (>8h0m0s), aborting