bisecting cause commit starting from 2376e5fe91bcad74b997d2cc0535abff79ec73c5 building syzkaller on d50eb50a564f0774e935b4f77390e3f591b4206d testing commit 2376e5fe91bcad74b997d2cc0535abff79ec73c5 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 09b901dbd7e011ed6716c23d464eac39cb15e136ab08f34f209344518476a28a all runs: crashed: WARNING in nsim_dev_reload_destroy testing release v5.14 testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 48b7b7a204beda6124b503868538faa1073ad9f5b361b390ce904816bcb202ce all runs: OK # git bisect start 2376e5fe91bcad74b997d2cc0535abff79ec73c5 7d2a07b769330c34b4deabeed939325c77a7ec2f Bisecting: 12372 revisions left to test after this (roughly 14 steps) [0e170624f66ccc5de830cbdbe9bb8ffd620efb2a] staging: r8188eu: remove odm ext trsw info testing commit 0e170624f66ccc5de830cbdbe9bb8ffd620efb2a compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 5a49d55aa5feb2c5b63cc67ed9ffcddf629767740ef0a9c34fc9e6a44e60ee3b all runs: OK # git bisect good 0e170624f66ccc5de830cbdbe9bb8ffd620efb2a Bisecting: 6033 revisions left to test after this (roughly 13 steps) [dad13e7c9aaf5e5ba2724c6efc6c36eafad1ac31] Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git testing commit dad13e7c9aaf5e5ba2724c6efc6c36eafad1ac31 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 2928dc28ef42ca5d14757bb275a3a19e586a22849883d9c8a00b69ab9bb03667 all runs: crashed: WARNING in nsim_dev_reload_destroy # git bisect bad dad13e7c9aaf5e5ba2724c6efc6c36eafad1ac31 Bisecting: 3180 revisions left to test after this (roughly 12 steps) [e825d722ab3543d8956eede93f382db7a9f8ea49] Merge branch 'for-next' of git://github.com/openrisc/linux.git testing commit e825d722ab3543d8956eede93f382db7a9f8ea49 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 9c3541f3c979c2b5e31323c1e2c6e1d26c9fd53f3e9f5badc7eb1ce7e81e8c37 all runs: OK # git bisect good e825d722ab3543d8956eede93f382db7a9f8ea49 Bisecting: 1590 revisions left to test after this (roughly 11 steps) [218f23e8a96fea7185dac68ceb3722d0831a8bcb] net: phy: bcm7xxx: Add EPHY entry for 7712 testing commit 218f23e8a96fea7185dac68ceb3722d0831a8bcb compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 16ee764680d27272513f9d27e7ae9a87527e139aa9e974fb68af66e96678f589 all runs: crashed: WARNING in nsim_dev_reload_destroy # git bisect bad 218f23e8a96fea7185dac68ceb3722d0831a8bcb Bisecting: 842 revisions left to test after this (roughly 10 steps) [5a98dcf59abf68a7949bf1ff95765b946c1a4595] Merge branch 'dev_addr-fw-helpers' testing commit 5a98dcf59abf68a7949bf1ff95765b946c1a4595 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 568aba9c45efb985f3e8a95d2a9cf756c0b8311a0b25f2bd1bd56f7d9d464e86 all runs: OK # git bisect good 5a98dcf59abf68a7949bf1ff95765b946c1a4595 Bisecting: 421 revisions left to test after this (roughly 9 steps) [c87350ced118ef898ffcb7badacf0939010f2549] Merge branch 'rtl8365mb-vc-support' testing commit c87350ced118ef898ffcb7badacf0939010f2549 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 2ef74b9ded255a493308b02702528d000bcb3b1dba74dbc2d4a8af5920d5511d all runs: OK # git bisect good c87350ced118ef898ffcb7badacf0939010f2549 Bisecting: 206 revisions left to test after this (roughly 8 steps) [9bc0b1aa8b7e54d62082749fc5404660690d17ce] Merge tag 'mt76-for-kvalo-2021-10-20' of https://github.com/nbd168/wireless testing commit 9bc0b1aa8b7e54d62082749fc5404660690d17ce compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: d405f3fc5558375c69b78dc690e532e9bdc16ae4b1891c17a6e59c5ca1429254 all runs: OK # git bisect good 9bc0b1aa8b7e54d62082749fc5404660690d17ce Bisecting: 102 revisions left to test after this (roughly 7 steps) [37ba803dbd3f4fa658cbd1a46c43009f94173bf2] Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue testing commit 37ba803dbd3f4fa658cbd1a46c43009f94173bf2 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 7c16afe5bdbe797676ddffb9b3842c75583ac0a6717e49bb24dbe7874233e5ee all runs: OK # git bisect good 37ba803dbd3f4fa658cbd1a46c43009f94173bf2 Bisecting: 51 revisions left to test after this (roughly 6 steps) [5f07da89bcd0759ac8391b917245a07fbdcf9234] net: sb1000,rionet: use eth_hw_addr_set() testing commit 5f07da89bcd0759ac8391b917245a07fbdcf9234 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 3a795a331285c9eded28a53cb979822bd8dad121e46d6e134426b1d2e828a9dc all runs: OK # git bisect good 5f07da89bcd0759ac8391b917245a07fbdcf9234 Bisecting: 25 revisions left to test after this (roughly 5 steps) [ba9d0db9a5ccf96029bd16f08e8afbd63590adbb] mac80211: fils: use cfg80211_find_ext_elem() testing commit ba9d0db9a5ccf96029bd16f08e8afbd63590adbb compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 7f1b13eaaee9fbd346bf10c9f05fae0df7007f1ebdf126d047930978a37b51d3 all runs: OK # git bisect good ba9d0db9a5ccf96029bd16f08e8afbd63590adbb Bisecting: 12 revisions left to test after this (roughly 4 steps) [d1a3f40951bb754054174650ed866fe349517597] Merge tag 'wireless-drivers-next-2021-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next testing commit d1a3f40951bb754054174650ed866fe349517597 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 3fa49e3476aeddff78ff5e56bfeae6c17e4f8d042d3dbabf11fc319d3db08a49 all runs: OK # git bisect good d1a3f40951bb754054174650ed866fe349517597 Bisecting: 6 revisions left to test after this (roughly 3 steps) [8bbeed4858239ac956a78e5cbaf778bd6f3baef8] devlink: Remove not-executed trap group notifications testing commit 8bbeed4858239ac956a78e5cbaf778bd6f3baef8 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 242760678e1ca68ffefbbf470e2b6a465c6626cc4860c5926d8eb9d5c7f5f717 all runs: crashed: WARNING in nsim_dev_reload_destroy # git bisect bad 8bbeed4858239ac956a78e5cbaf778bd6f3baef8 Bisecting: 2 revisions left to test after this (roughly 2 steps) [61e18ce7348bfefb5688a8bcd4b4d6b37c0f9b2a] gre/sit: Don't generate link-local addr if addr_gen_mode is IN6_ADDR_GEN_MODE_NONE testing commit 61e18ce7348bfefb5688a8bcd4b4d6b37c0f9b2a compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 1e44bc111ee6528d0f90b4d3294943db7cd27a630cef7e3293a03a954f5cf661 all runs: OK # git bisect good 61e18ce7348bfefb5688a8bcd4b4d6b37c0f9b2a Bisecting: 0 revisions left to test after this (roughly 1 step) [22849b5ea5952d853547cc5e0651f34a246b2a4f] devlink: Remove not-executed trap policer notifications testing commit 22849b5ea5952d853547cc5e0651f34a246b2a4f compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 3d617f1aa19024d70356b6d13d57f84b6e348b4b935678cf85b908e33fd7fd5a all runs: crashed: WARNING in nsim_dev_reload_destroy # git bisect bad 22849b5ea5952d853547cc5e0651f34a246b2a4f Bisecting: 0 revisions left to test after this (roughly 0 steps) [99ad92eff76491331a90d839dd6b7225cf8dd53e] devlink: Delete obsolete parameters publish API testing commit 99ad92eff76491331a90d839dd6b7225cf8dd53e compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4aa6175b4ca9cac56467e65d9a4170a98e9c14751cc3179e74aa8f2bc895396b all runs: OK # git bisect good 99ad92eff76491331a90d839dd6b7225cf8dd53e 22849b5ea5952d853547cc5e0651f34a246b2a4f is the first bad commit commit 22849b5ea5952d853547cc5e0651f34a246b2a4f Author: Leon Romanovsky Date: Thu Oct 21 17:16:14 2021 +0300 devlink: Remove not-executed trap policer notifications The trap policer logic is registered before devlink_register() and all the notifications are delayed. This patch removes not-possible notifications along with addition of code annotation logic. Signed-off-by: Leon Romanovsky Signed-off-by: Jakub Kicinski net/core/devlink.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) culprit signature: 3d617f1aa19024d70356b6d13d57f84b6e348b4b935678cf85b908e33fd7fd5a parent signature: 4aa6175b4ca9cac56467e65d9a4170a98e9c14751cc3179e74aa8f2bc895396b revisions tested: 17, total time: 4h28m7.090121711s (build: 1h50m56.979916992s, test: 2h35m25.915655611s) first bad commit: 22849b5ea5952d853547cc5e0651f34a246b2a4f devlink: Remove not-executed trap policer notifications recipients (to): ["davem@davemloft.net" "jiri@nvidia.com" "kuba@kernel.org" "kuba@kernel.org" "leonro@nvidia.com" "netdev@vger.kernel.org"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: WARNING in nsim_dev_reload_destroy netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1224 at net/core/devlink.c:11299 devlink_trap_policers_unregister+0x8b/0xa0 net/core/devlink.c:11304 Modules linked in: CPU: 0 PID: 1224 Comm: kworker/u4:5 Not tainted 5.15.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:devlink_trap_policers_unregister+0x8b/0xa0 net/core/devlink.c:11299 Code: f6 38 48 01 f5 48 89 ee 4c 89 e7 83 eb 01 e8 2c fc ff ff 48 83 ed 38 83 fb ff 75 e9 5b 4c 89 ef 5d 41 5c 41 5d e9 f5 ff d5 01 <0f> 0b eb b6 e8 8c ad 10 fb eb 96 66 2e 0f 1f 84 00 00 00 00 00 41 RSP: 0018:ffffc9000537fa18 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000003 RCX: ffffc9000537f8b8 RDX: 1ffff1100378e862 RSI: ffffffff88cb4ce0 RDI: ffffffff89207120 RBP: ffffffff895eb580 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000007a089 R12: ffff8880780c1000 R13: ffff8880780c1000 R14: dffffc0000000000 R15: ffff8880780c1398 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556600b29768 CR3: 0000000072892000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nsim_dev_traps_exit+0x73/0x170 drivers/net/netdevsim/dev.c:851 nsim_dev_reload_destroy+0x1d0/0x2b0 drivers/net/netdevsim/dev.c:1559 nsim_dev_reload_down+0xab/0x130 drivers/net/netdevsim/dev.c:883 devlink_reload+0x1ae/0x5e0 net/core/devlink.c:4040 devlink_pernet_pre_exit+0x1cf/0x270 net/core/devlink.c:11472 ops_pre_exit_list net/core/net_namespace.c:158 [inline] cleanup_net+0x3a4/0x980 net/core/net_namespace.c:581 process_one_work+0x87f/0x1450 kernel/workqueue.c:2297 worker_thread+0x598/0x1040 kernel/workqueue.c:2444 kthread+0x38b/0x460 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295