bisecting cause commit starting from 4fa640dc52302b5e62b01b05c755b055549633ae building syzkaller on d88894e6773ab63ac8b3f4b2edbae88290aaf0d6 testing commit 4fa640dc52302b5e62b01b05c755b055549633ae with gcc (GCC) 8.1.0 kernel signature: 15c814db4d26ccd6cdbe90b861ad054413b6797e25a7a8ea6f6af178aa7a695a run #0: crashed: INFO: rcu detected stall in smp_call_function run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: BUG: soft lockup in rtnl_newlink run #7: crashed: INFO: rcu detected stall in iterate_cleanup_work run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in do_idle testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0 kernel signature: cbd3bf06d34708b21834725513d3b246549831f11a5c3b24d82e5aaf89a4002a run #0: crashed: INFO: rcu detected stall in linkwatch_event run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in rtnl_newlink run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: no output from test machine run #6: crashed: no output from test machine run #7: crashed: no output from test machine run #8: crashed: INFO: rcu detected stall in do_syscall_64 run #9: crashed: no output from test machine testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0 kernel signature: 655f010009c680b4a81b408f789232bf8ecc9ae10df58c20e7f5a831ef0ad896 run #0: crashed: INFO: rcu detected stall in blk_done_softirq run #1: crashed: INFO: rcu detected stall in sys_socket run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in __do_sys_newfstat run #5: crashed: INFO: rcu detected stall in inet6_rtm_newaddr run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: BUG: soft lockup in do_idle run #9: crashed: no output from test machine testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0 kernel signature: 5aba1d652925c029792f77a9e6cd1208622791a674639c4bd993a74f360b94df all runs: crashed: BUG: sleeping function called from invalid context in cpus_read_lock testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0 kernel signature: 152c908a8e609475bff5308fa9b64aa8f6b32b9f76e6404f60552b62cc025c21 all runs: crashed: BUG: sleeping function called from invalid context in cpus_read_lock testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0 kernel signature: 140ebf18b4dff8e71a7b8092adea125567dca52fe2ad13dbb0eb2749695f85bb all runs: crashed: BUG: sleeping function called from invalid context in cpus_read_lock testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 kernel signature: 656166ca9f1dc65e144efa32089557abb426d09345b631e25bcbb56e31b04457 all runs: crashed: BUG: sleeping function called from invalid context in cpus_read_lock testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 kernel signature: c1425bc9f716ab8a4dc3a739c647a1b77570696e786cb4f2f5e5629eba190f94 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: BUG: soft lockup in smp_call_function run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: BUG: soft lockup in do_idle run #6: crashed: BUG: soft lockup in do_idle run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: no output from test machine run #9: crashed: no output from test machine testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 kernel signature: ffa8d1d3994ae6ec6da38f5769423ed22fa26ea1344f48071e3cb8004d7c5ca0 run #0: crashed: INFO: rcu detected stall in tc_modify_qdisc run #1: crashed: BUG: soft lockup in do_idle run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in smp_call_function run #4: crashed: INFO: rcu detected stall in sys_mkdir run #5: crashed: INFO: rcu detected stall in sys_getsockopt run #6: crashed: BUG: soft lockup in smp_call_function run #7: crashed: no output from test machine run #8: crashed: no output from test machine run #9: crashed: no output from test machine testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 kernel signature: 84016dfeca6c16b254d954c8b8cebcc3a146eb12e2a13e62fbeff3bfeb19712f run #0: crashed: INFO: rcu detected stall in smp_call_function run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in sys_exit_group run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in errseq_sample run #6: crashed: INFO: rcu detected stall in smp_call_function run #7: crashed: INFO: rcu detected stall in do_signal run #8: crashed: no output from test machine run #9: crashed: no output from test machine testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 kernel signature: 92bbe63e8ce95be527aa692a797fdccb7f986ab6467e2e15f50828bba39dc502 all runs: OK # git bisect start 8fe28cb58bcb235034b64cbbb7550a8a43fd88be 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d Bisecting: 7499 revisions left to test after this (roughly 13 steps) [ec9c166434595382be3babf266febf876327774d] Merge tag 'mips_fixes_4.20_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux testing commit ec9c166434595382be3babf266febf876327774d with gcc (GCC) 8.1.0 kernel signature: 1581032574a0598cd968a35075ab7c1ad6d6678f2ea208ad1126601bba3c88e2 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in smp_call_function run #2: crashed: BUG: soft lockup in blk_done_softirq run #3: crashed: INFO: rcu detected stall in sys_open run #4: crashed: INFO: rcu detected stall in addrconf_dad_work run #5: crashed: INFO: rcu detected stall in batadv_nc_worker run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: no output from test machine run #8: crashed: INFO: rcu detected stall in sys_epoll_pwait run #9: crashed: no output from test machine # git bisect bad ec9c166434595382be3babf266febf876327774d Bisecting: 3252 revisions left to test after this (roughly 12 steps) [50b825d7e87f4cff7070df6eb26390152bb29537] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next testing commit 50b825d7e87f4cff7070df6eb26390152bb29537 with gcc (GCC) 8.1.0 kernel signature: 1e67ce2ecf4051166cc923530eeb044503136e91da6a38c51993eec25bbdb4bb run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: BUG: soft lockup in sys_umount run #2: crashed: INFO: rcu detected stall in addrconf_dad_work run #3: crashed: INFO: rcu detected stall in iterate_cleanup_work run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in blk_done_softirq run #6: crashed: INFO: rcu detected stall in wb_workfn run #7: crashed: INFO: rcu detected stall in batadv_purge_orig run #8: crashed: BUG: soft lockup in wb_workfn run #9: crashed: no output from test machine # git bisect bad 50b825d7e87f4cff7070df6eb26390152bb29537 Bisecting: 2120 revisions left to test after this (roughly 11 steps) [99e9acd85ccbdc8f5785f9e961d4956e96bd6aa5] Merge tag 'mlx5-updates-2018-10-17' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux testing commit 99e9acd85ccbdc8f5785f9e961d4956e96bd6aa5 with gcc (GCC) 8.1.0 kernel signature: 27332648684cca9eeedb4f8d337c22ed0b4577ec987d6ac322d7d0b309d3400b run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: BUG: soft lockup in batadv_dat_purge run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in batadv_dat_purge run #5: crashed: BUG: soft lockup in do_idle run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: no output from test machine run #8: crashed: no output from test machine run #9: crashed: no output from test machine # git bisect bad 99e9acd85ccbdc8f5785f9e961d4956e96bd6aa5 Bisecting: 989 revisions left to test after this (roughly 10 steps) [d793fb46822ff7408a1767313ef6b12e811baa55] Merge tag 'wireless-drivers-next-for-davem-2018-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next testing commit d793fb46822ff7408a1767313ef6b12e811baa55 with gcc (GCC) 8.1.0 kernel signature: f3d76aaefd6a8fc048086b53fe767f3a58169a5799c447a49199c8a476203a0b all runs: OK # git bisect good d793fb46822ff7408a1767313ef6b12e811baa55 Bisecting: 461 revisions left to test after this (roughly 9 steps) [071a234ad744ab9a1e9c948874d5f646a2964734] Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next testing commit 071a234ad744ab9a1e9c948874d5f646a2964734 with gcc (GCC) 8.1.0 kernel signature: 0296fb40b4152f2b882a630634f755dc6e26ebd55323890bd40814f5c8e520ba run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: no output from test machine run #9: crashed: no output from test machine # git bisect bad 071a234ad744ab9a1e9c948874d5f646a2964734 Bisecting: 275 revisions left to test after this (roughly 8 steps) [5580d810560da33804053ae3bca13110c9a8d5e8] Merge tag 'mt76-for-kvalo-2018-10-05' of https://github.com/nbd168/wireless testing commit 5580d810560da33804053ae3bca13110c9a8d5e8 with gcc (GCC) 8.1.0 kernel signature: 04affa322b841f308ec711677b1639d10400eb60f940340530bdadd7ec31718b all runs: OK # git bisect good 5580d810560da33804053ae3bca13110c9a8d5e8 Bisecting: 137 revisions left to test after this (roughly 7 steps) [b245d32c995868879f361d252f32bb8a2ca33deb] net: sched: cls_u32: keep track of knodes count in tc_u_common testing commit b245d32c995868879f361d252f32bb8a2ca33deb with gcc (GCC) 8.1.0 kernel signature: 4e5a24474a1783ac994d3963e968400bdee36df648d35e3dec6ad98073e3c43e run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in sys_newlstat run #4: crashed: INFO: rcu detected stall in tc_modify_qdisc run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: BUG: soft lockup in smp_call_function run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: no output from test machine # git bisect bad b245d32c995868879f361d252f32bb8a2ca33deb Bisecting: 68 revisions left to test after this (roughly 6 steps) [cc5f0eb2164f9aa11fe631f8d905192e0233e262] net: Move free of fib_metrics to helper testing commit cc5f0eb2164f9aa11fe631f8d905192e0233e262 with gcc (GCC) 8.1.0 kernel signature: 1ed12bfbae5809b380c49a0c9c772ac061a32f0a74cd83e77437b9040eba2425 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: BUG: soft lockup in do_idle run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in smp_call_function run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: no output from test machine run #6: crashed: no output from test machine run #7: crashed: no output from test machine run #8: crashed: no output from test machine run #9: crashed: BUG: soft lockup in do_idle # git bisect bad cc5f0eb2164f9aa11fe631f8d905192e0233e262 Bisecting: 33 revisions left to test after this (roughly 5 steps) [6a5e6b118092dfddc545d95911d66d6562f05281] Merge branch 'ieee802154-for-davem-2018-10-04' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next testing commit 6a5e6b118092dfddc545d95911d66d6562f05281 with gcc (GCC) 8.1.0 kernel signature: 93f77ccab6b9566fb789a7736c3f99ae5f37cc3171498578d42cbdac2355ad86 all runs: OK # git bisect good 6a5e6b118092dfddc545d95911d66d6562f05281 Bisecting: 15 revisions left to test after this (roughly 4 steps) [9e50727f0e710e25e9fd740c9f43f51b37757773] Merge tag 'mlx5-updates-2018-10-03' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux testing commit 9e50727f0e710e25e9fd740c9f43f51b37757773 with gcc (GCC) 8.1.0 kernel signature: c8db9a854d8b89e421a7b442936a7efdbbb09d95374fc5936b4b916e687ee134 all runs: OK # git bisect good 9e50727f0e710e25e9fd740c9f43f51b37757773 Bisecting: 7 revisions left to test after this (roughly 3 steps) [2dc0865e9ac7150e2d3b29afdc32d04b99f37902] bnxt_en: Add a driver specific gre_ver_check devlink parameter. testing commit 2dc0865e9ac7150e2d3b29afdc32d04b99f37902 with gcc (GCC) 8.1.0 kernel signature: 787f623ec38da8bf80b0ec445f17f39283e9268f467efeb9c657ad8c63d5b1a6 all runs: OK # git bisect good 2dc0865e9ac7150e2d3b29afdc32d04b99f37902 Bisecting: 3 revisions left to test after this (roughly 2 steps) [5a781ccbd19e4664babcbe4b4ead7aa2b9283d22] tc: Add support for configuring the taprio scheduler testing commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 with gcc (GCC) 8.1.0 kernel signature: e502f79bfe7a949f76af934cb69473f791e5f37be50f8766297e197cbcd71201 run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: BUG: soft lockup in smp_call_function run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: BUG: soft lockup in smp_call_function run #5: crashed: INFO: rcu detected stall in reg_check_chans_work run #6: crashed: BUG: soft lockup in smp_call_function run #7: crashed: INFO: rcu detected stall in try_check_zero run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: BUG: soft lockup in smp_call_function # git bisect bad 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 Bisecting: 1 revision left to test after this (roughly 1 step) [53e233ea2fa9fa7e2405e95070981f327d90e519] devlink: Add Documentation/networking/devlink-params-bnxt.txt testing commit 53e233ea2fa9fa7e2405e95070981f327d90e519 with gcc (GCC) 8.1.0 kernel signature: 937517d555cfe1cbce4e20c1d31c8d4e06022ed70d454e39db1f55264e7b5313 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: crashed: general protection fault in batadv_iv_ogm_queue_add # git bisect bad 53e233ea2fa9fa7e2405e95070981f327d90e519 Bisecting: 0 revisions left to test after this (roughly 0 steps) [9bff98bb35e1c9b36c7f5b77bde8a9d36e5ea708] devlink: Add Documentation/networking/devlink-params.txt testing commit 9bff98bb35e1c9b36c7f5b77bde8a9d36e5ea708 with gcc (GCC) 8.1.0 kernel signature: 5c2bef8b747aeb41b8aca00e4b0a6bf3db1ad3a2b2bc8e868227823a44b907ae all runs: OK # git bisect good 9bff98bb35e1c9b36c7f5b77bde8a9d36e5ea708 53e233ea2fa9fa7e2405e95070981f327d90e519 is the first bad commit commit 53e233ea2fa9fa7e2405e95070981f327d90e519 Author: Vasundhara Volam Date: Thu Oct 4 11:13:52 2018 +0530 devlink: Add Documentation/networking/devlink-params-bnxt.txt This patch adds a new file to add information about configuration parameters that are supported by bnxt_en driver via devlink. Cc: "David S. Miller" Cc: Jonathan Corbet Cc: linux-doc@vger.kernel.org Cc: Jiri Pirko Cc: Michael Chan Signed-off-by: Vasundhara Volam Signed-off-by: David S. Miller Documentation/networking/devlink-params-bnxt.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 Documentation/networking/devlink-params-bnxt.txt culprit signature: 937517d555cfe1cbce4e20c1d31c8d4e06022ed70d454e39db1f55264e7b5313 parent signature: 5c2bef8b747aeb41b8aca00e4b0a6bf3db1ad3a2b2bc8e868227823a44b907ae revisions tested: 25, total time: 6h4m39.610706468s (build: 2h38m46.391426973s, test: 3h22m19.369806558s) first bad commit: 53e233ea2fa9fa7e2405e95070981f327d90e519 devlink: Add Documentation/networking/devlink-params-bnxt.txt cc: ["corbet@lwn.net" "davem@davemloft.net" "linux-doc@vger.kernel.org" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org" "vasundhara-v.volam@broadcom.com"] crash: general protection fault in batadv_iv_ogm_queue_add batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 23 Comm: kworker/u4:1 Not tainted 4.19.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xe50 net/batman-adv/bat_iv_ogm.c:612 Code: 44 89 8d 64 ff ff ff c7 02 f1 f1 f1 f1 c7 42 04 04 f2 f2 f2 48 89 fa 65 48 8b 0c 25 28 00 00 00 48 89 4d d0 31 c9 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 99 0b 00 00 RSP: 0018:ffff8800a99bfac0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8800884ae040 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff8800a99bfbd8 R08: ffff880086bee840 R09: 0000000000000001 R10: ffffed0015337f8f R11: 0000000000000003 R12: ffff880086bee840 R13: dffffc0000000000 R14: ffffed0010d7dd16 R15: 000000000000003c FS: 0000000000000000(0000) GS:ffff8800aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0379b39000 CR3: 00000000978b2000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: batadv_iv_ogm_schedule+0xb47/0xe80 net/batman-adv/bat_iv_ogm.c:820 batadv_iv_send_outstanding_bat_ogm_packet+0x4a2/0x7a0 net/batman-adv/bat_iv_ogm.c:1682 process_one_work+0x7b9/0x14f0 kernel/workqueue.c:2153 worker_thread+0x85/0xb60 kernel/workqueue.c:2296 kthread+0x324/0x3e0 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:413 Modules linked in: ---[ end trace 06d65fdbe4b642f7 ]--- RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xe50 net/batman-adv/bat_iv_ogm.c:612 Code: 44 89 8d 64 ff ff ff c7 02 f1 f1 f1 f1 c7 42 04 04 f2 f2 f2 48 89 fa 65 48 8b 0c 25 28 00 00 00 48 89 4d d0 31 c9 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 99 0b 00 00 RSP: 0018:ffff8800a99bfac0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8800884ae040 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff8800a99bfbd8 R08: ffff880086bee840 R09: 0000000000000001 R10: ffffed0015337f8f R11: 0000000000000003 R12: ffff880086bee840 R13: dffffc0000000000 R14: ffffed0010d7dd16 R15: 000000000000003c FS: 0000000000000000(0000) GS:ffff8800aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0379b39000 CR3: 00000000978b2000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400