bisecting cause commit starting from ac3a0c8472969a03c0496ae774b3a29eb26c8d5a building syzkaller on 63a7334112fa63edb0c0a3f317d3d92135a6ead9 testing commit ac3a0c8472969a03c0496ae774b3a29eb26c8d5a with gcc (GCC) 8.1.0 kernel signature: 4590449b463ab9786a3eca2636f1a518cf9d8abc3d5ab8a5f51f3155e682fce8 run #0: crashed: WARNING: ODEBUG bug in hci_conn_del run #1: crashed: WARNING: ODEBUG bug in hci_conn_del run #2: crashed: BUG: unable to handle kernel paging request in pfifo_fast_dequeue run #3: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #4: crashed: WARNING: ODEBUG bug in hci_conn_del run #5: crashed: WARNING: ODEBUG bug in hci_conn_del run #6: crashed: WARNING: ODEBUG bug in hci_conn_del run #7: crashed: WARNING: ODEBUG bug in cancel_delayed_work run #8: crashed: BUG: unable to handle kernel paging request in pfifo_fast_dequeue run #9: crashed: WARNING: ODEBUG bug in cancel_delayed_work testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0 kernel signature: 40d001926aef88090f61cd30ce66408fd52fa6fd93fbdeee186c73e581c5d4f0 all runs: crashed: KASAN: use-after-free Write in sco_chan_del testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0 kernel signature: 4bad67ce41f6f489881efa177d2fbbecdd584c6ef4f3b757be7211fea39f0595 all runs: crashed: KASAN: use-after-free Write in sco_chan_del testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0 kernel signature: 9db762d27411cc00df51653ab295fee3048e0fe258f40175c705cac8262bae5d run #0: crashed: KASAN: use-after-free Write in sco_chan_del run #1: crashed: KASAN: use-after-free Write in sco_chan_del run #2: crashed: KASAN: use-after-free Write in sco_chan_del run #3: crashed: KASAN: use-after-free Write in sco_chan_del run #4: crashed: KASAN: use-after-free Write in sco_chan_del run #5: crashed: KASAN: use-after-free Write in sco_chan_del run #6: crashed: WARNING: ODEBUG bug in hci_conn_del run #7: crashed: KASAN: use-after-free Write in sco_chan_del run #8: crashed: KASAN: use-after-free Write in sco_chan_del run #9: crashed: KASAN: use-after-free Write in sco_chan_del testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0 kernel signature: e6386ebd88fa576c07e412ec666761b999c7b749f1ae412f8c14eae31e089501 run #0: crashed: KASAN: use-after-free Write in sco_chan_del run #1: crashed: WARNING: ODEBUG bug in hci_conn_del run #2: crashed: KASAN: use-after-free Write in sco_chan_del run #3: crashed: KASAN: use-after-free Write in sco_chan_del run #4: crashed: KASAN: use-after-free Write in sco_chan_del run #5: crashed: KASAN: use-after-free Write in sco_chan_del run #6: crashed: KASAN: use-after-free Write in sco_chan_del run #7: crashed: KASAN: use-after-free Write in sco_chan_del run #8: crashed: KASAN: use-after-free Write in sco_chan_del run #9: crashed: KASAN: use-after-free Write in sco_chan_del testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0 kernel signature: 79a42bef29434e5600130b2fc93229a094dd61dc93477b78ecb5d59cc380833d run #0: crashed: KASAN: use-after-free Write in sco_chan_del run #1: crashed: KASAN: use-after-free Write in sco_chan_del run #2: crashed: WARNING: ODEBUG bug in bt_link_release run #3: crashed: KASAN: use-after-free Write in sco_chan_del run #4: crashed: KASAN: use-after-free Write in sco_chan_del run #5: crashed: KASAN: use-after-free Write in sco_chan_del run #6: crashed: KASAN: use-after-free Write in sco_chan_del run #7: crashed: KASAN: use-after-free Write in sco_chan_del run #8: crashed: KASAN: use-after-free Write in sco_chan_del run #9: crashed: WARNING: ODEBUG bug in bt_link_release testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 kernel signature: 462e3415f5d4152ad93301b4e08abc188d37cfb0c4346c9b5472c36021f2cf55 run #0: crashed: WARNING: ODEBUG bug in bt_link_release run #1: crashed: KASAN: use-after-free Write in sco_chan_del run #2: crashed: WARNING: ODEBUG bug in bt_link_release run #3: crashed: KASAN: use-after-free Write in sco_chan_del run #4: crashed: KASAN: use-after-free Write in sco_chan_del run #5: crashed: WARNING: ODEBUG bug in bt_link_release run #6: crashed: KASAN: use-after-free Write in sco_chan_del run #7: crashed: KASAN: use-after-free Write in sco_chan_del run #8: crashed: KASAN: use-after-free Write in sco_chan_del run #9: crashed: KASAN: use-after-free Write in sco_chan_del testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 kernel signature: cd9e75adbbb3e87a5fa8a3d50a26bf09e3834a795625b54c183696a3e730f325 run #0: crashed: WARNING: ODEBUG bug in bt_link_release run #1: crashed: KASAN: use-after-free Write in sco_chan_del run #2: crashed: KASAN: use-after-free Write in sco_chan_del run #3: crashed: WARNING: ODEBUG bug in bt_link_release run #4: crashed: WARNING: ODEBUG bug in bt_link_release run #5: crashed: WARNING: ODEBUG bug in bt_link_release run #6: crashed: KASAN: use-after-free Write in sco_chan_del run #7: crashed: KASAN: use-after-free Write in sco_chan_del run #8: crashed: KASAN: use-after-free Write in sco_chan_del run #9: crashed: WARNING: ODEBUG bug in bt_link_release testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 kernel signature: 6ab4ae1fe6e48b5bf431fded1c84c3a30f363f06b2c18683c53b0507df3099cc run #0: crashed: KASAN: use-after-free Write in sco_chan_del run #1: crashed: KASAN: use-after-free Write in sco_chan_del run #2: crashed: KASAN: use-after-free Write in sco_chan_del run #3: crashed: KASAN: use-after-free Write in sco_chan_del run #4: crashed: KASAN: use-after-free Write in sco_chan_del run #5: crashed: KASAN: use-after-free Write in sco_chan_del run #6: crashed: KASAN: use-after-free Write in sco_chan_del run #7: crashed: WARNING: ODEBUG bug in corrupted run #8: crashed: KASAN: use-after-free Write in sco_chan_del run #9: crashed: KASAN: use-after-free Write in sco_chan_del testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 kernel signature: 1bd23a3980c2e26514ed2a9514c0c6d269bf93a415ddbb82d0da6e73065021b6 run #0: crashed: KASAN: use-after-free Write in sco_chan_del run #1: crashed: KASAN: use-after-free Write in sco_chan_del run #2: crashed: KASAN: use-after-free Write in sco_chan_del run #3: crashed: KASAN: use-after-free Write in sco_chan_del run #4: crashed: WARNING: ODEBUG bug in corrupted run #5: crashed: WARNING: ODEBUG bug in bt_link_release run #6: crashed: KASAN: use-after-free Write in sco_chan_del run #7: crashed: KASAN: use-after-free Write in sco_chan_del run #8: crashed: KASAN: use-after-free Write in sco_chan_del run #9: crashed: WARNING: ODEBUG bug in bt_link_release testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 kernel signature: 23f907059fc2bca0910ae9ef22f204f9fffedf6f11e2f95e13ae56a145363002 run #0: crashed: KASAN: use-after-free Write in sco_chan_del run #1: crashed: KASAN: use-after-free Write in sco_chan_del run #2: crashed: WARNING: ODEBUG bug in bt_link_release run #3: crashed: KASAN: use-after-free Write in sco_chan_del run #4: crashed: WARNING: ODEBUG bug in bt_link_release run #5: crashed: KASAN: use-after-free Write in sco_chan_del run #6: crashed: WARNING: ODEBUG bug in bt_link_release run #7: crashed: KASAN: use-after-free Write in sco_chan_del run #8: crashed: KASAN: use-after-free Write in sco_chan_del run #9: crashed: KASAN: use-after-free Write in sco_chan_del testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 kernel signature: 97ce41fbc158233d048a123f5c497ad071e35c27b910954433ac5ad8da630b83 run #0: crashed: WARNING: ODEBUG bug in bt_link_release run #1: crashed: KASAN: use-after-free Write in sco_chan_del run #2: crashed: KASAN: use-after-free Write in sco_chan_del run #3: crashed: KASAN: use-after-free Write in sco_chan_del run #4: crashed: KASAN: use-after-free Write in sco_chan_del run #5: crashed: KASAN: use-after-free Write in sco_chan_del run #6: crashed: KASAN: use-after-free Write in sco_chan_del run #7: crashed: WARNING: ODEBUG bug in bt_link_release run #8: crashed: WARNING: ODEBUG bug in bt_link_release run #9: crashed: KASAN: use-after-free Write in sco_chan_del testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 kernel signature: 2ec6b976e232157c19e00ec7ae0681630159be446f1870761c9de6624cf1d267 run #0: crashed: KASAN: use-after-free Write in sco_chan_del run #1: crashed: KASAN: use-after-free Write in sco_chan_del run #2: crashed: KASAN: use-after-free Write in sco_chan_del run #3: crashed: WARNING: ODEBUG bug in bt_link_release run #4: crashed: KASAN: use-after-free Write in sco_chan_del run #5: crashed: KASAN: use-after-free Write in sco_chan_del run #6: crashed: KASAN: use-after-free Write in sco_chan_del run #7: crashed: KASAN: use-after-free Write in sco_chan_del run #8: crashed: KASAN: use-after-free Write in sco_chan_del run #9: crashed: WARNING: ODEBUG bug in bt_link_release testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 kernel signature: 48d817797a117a7833ee65b73249a7f4e8c38b7104c5ec4593e15c4465b174db run #0: crashed: KASAN: use-after-free Read in sco_chan_del run #1: crashed: KASAN: use-after-free Read in sco_chan_del run #2: crashed: KASAN: use-after-free Read in sco_chan_del run #3: crashed: KASAN: use-after-free Read in sco_chan_del run #4: crashed: KASAN: use-after-free Read in sco_chan_del run #5: crashed: KASAN: use-after-free Read in sco_chan_del run #6: crashed: KASAN: use-after-free Read in sco_chan_del run #7: crashed: KASAN: use-after-free Read in sco_chan_del run #8: crashed: KASAN: use-after-free Read in sco_chan_del run #9: crashed: WARNING: ODEBUG bug in bt_link_release testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 kernel signature: df16ac9bfefd24ac26cad25b832c5f1cc03614528ae6b7a5c11f42a59712e32e run #0: crashed: KASAN: use-after-free Read in sco_chan_del run #1: crashed: KASAN: use-after-free Read in sco_chan_del run #2: crashed: KASAN: use-after-free Read in sco_chan_del run #3: crashed: KASAN: use-after-free Read in sco_chan_del run #4: crashed: KASAN: use-after-free Read in sco_chan_del run #5: crashed: KASAN: use-after-free Read in sco_chan_del run #6: crashed: WARNING: ODEBUG bug in bt_link_release run #7: crashed: WARNING: ODEBUG bug in bt_link_release run #8: crashed: KASAN: use-after-free Read in sco_chan_del run #9: crashed: WARNING: ODEBUG bug in bt_link_release testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 kernel signature: 5b581e67ea1c70fa21f1ced59f5de044a0266fde7b98243bd71319185ab0a4f6 run #0: crashed: KASAN: use-after-free Read in sco_chan_del run #1: crashed: KASAN: use-after-free Read in sco_chan_del run #2: crashed: KASAN: use-after-free Read in sco_chan_del run #3: crashed: KASAN: use-after-free Read in sco_chan_del run #4: crashed: KASAN: use-after-free Read in sco_chan_del run #5: crashed: KASAN: use-after-free Read in sco_chan_del run #6: crashed: KASAN: use-after-free Read in sco_chan_del run #7: crashed: WARNING: ODEBUG bug in bt_link_release run #8: crashed: KASAN: use-after-free Read in sco_chan_del run #9: crashed: WARNING: ODEBUG bug in bt_link_release testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 kernel signature: 4779520486d54f9031e54fed1df2d5390370fb1f732e4a8d0ad1572c86e9d391 run #0: crashed: KASAN: use-after-free Read in sco_chan_del run #1: crashed: KASAN: use-after-free Read in sco_chan_del run #2: crashed: KASAN: use-after-free Read in sco_chan_del run #3: crashed: KASAN: use-after-free Read in sco_chan_del run #4: crashed: WARNING: ODEBUG bug in bt_link_release run #5: crashed: KASAN: use-after-free Read in sco_chan_del run #6: crashed: KASAN: use-after-free Read in sco_chan_del run #7: crashed: WARNING: ODEBUG bug in bt_link_release run #8: crashed: KASAN: use-after-free Read in sco_chan_del run #9: crashed: KASAN: use-after-free Read in sco_chan_del testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 kernel signature: d5578e6470b451711728dc58c2a3b64026efe10a73ef8d06987280af5bc8edea all runs: crashed: BUG: sleeping function called from invalid context in tap_get_minor testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 kernel signature: 0d056f97f42ab44fdb92d3c201b15899bc053a863835fa54abcd3a1b731691b2 all runs: crashed: BUG: sleeping function called from invalid context in tap_get_minor testing release v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 kernel signature: 4b2c7a8a70ea7910727c1dc3b6e0ea18a744e36a7ef8f8bf2c0c04ec96ac37c6 run #0: crashed: KASAN: use-after-free Read in sco_chan_del run #1: crashed: KASAN: use-after-free Read in sco_chan_del run #2: crashed: KASAN: use-after-free Read in sco_chan_del run #3: crashed: KASAN: use-after-free Read in sco_chan_del run #4: crashed: KASAN: use-after-free Read in sco_chan_del run #5: crashed: WARNING: ODEBUG bug in bt_link_release run #6: crashed: KASAN: use-after-free Read in sco_chan_del run #7: crashed: WARNING: ODEBUG bug in bt_link_release run #8: crashed: KASAN: use-after-free Read in sco_chan_del run #9: crashed: KASAN: use-after-free Read in sco_chan_del testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 kernel signature: 2158a87a0ae66477fad9dbadf38b292de6bf9b94b6da08999f930c2be691f7e8 all runs: OK # git bisect start c470abd4fde40ea6a0846a2beab642a578c0b8cd 69973b830859bc6529a7a0468ba0d80ee5117826 Bisecting: 7099 revisions left to test after this (roughly 13 steps) [f4000cd99750065d5177555c0a805c97174d1b9f] Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux testing commit f4000cd99750065d5177555c0a805c97174d1b9f with gcc (GCC) 5.5.0 kernel signature: 9af139492b175f08cc7b60ac52470cf03f2f78d6db1a78fcb1e76e2682fa71a5 run #0: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.44:./syz-fuzzer"] run #1: boot failed: can't ssh into the instance run #2: boot failed: can't ssh into the instance run #3: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE run #4: boot failed: can't ssh into the instance run #5: boot failed: can't ssh into the instance run #6: boot failed: can't ssh into the instance run #7: boot failed: can't ssh into the instance run #8: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE run #9: boot failed: can't ssh into the instance # git bisect skip f4000cd99750065d5177555c0a805c97174d1b9f Bisecting: 7099 revisions left to test after this (roughly 13 steps) [ab1effc09519f3bb4b84dd6d8276cedf07b17a1b] staging: ks7010: Add blank line after declarations testing commit ab1effc09519f3bb4b84dd6d8276cedf07b17a1b with gcc (GCC) 5.5.0 kernel signature: 5927b92f6c9549b56aab323d163e143d2d006252c7c65945c700fe64de458141 all runs: OK # git bisect good ab1effc09519f3bb4b84dd6d8276cedf07b17a1b Bisecting: 7022 revisions left to test after this (roughly 13 steps) [09cb6464fe5e7fcd5177911429badd139c4481b7] Merge tag 'for-f2fs-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs testing commit 09cb6464fe5e7fcd5177911429badd139c4481b7 with gcc (GCC) 5.5.0 kernel signature: 7f0d7c16a9bd5e94e77ae016820193d0bf9502865a84accc38a7103ec04cfa85 run #0: boot failed: can't ssh into the instance run #1: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE run #2: boot failed: can't ssh into the instance run #3: boot failed: can't ssh into the instance run #4: boot failed: can't ssh into the instance run #5: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE run #6: boot failed: can't ssh into the instance run #7: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE run #8: boot failed: can't ssh into the instance run #9: boot failed: can't ssh into the instance # git bisect skip 09cb6464fe5e7fcd5177911429badd139c4481b7 Bisecting: 7022 revisions left to test after this (roughly 13 steps) [68226b4dfa9b2e064e2f9e792bf7469f465054c7] [media] dvb-tc90522: Rename a jump label in tc90522_probe() testing commit 68226b4dfa9b2e064e2f9e792bf7469f465054c7 with gcc (GCC) 5.5.0 kernel signature: 4e0f6dec2585d90b794ed8fd0fbddac7cdc1bb8f7bb55a1f93a88da340656d45 run #0: crashed: WARNING in nf_unregister_net_hook 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: OK # git bisect bad 68226b4dfa9b2e064e2f9e792bf7469f465054c7 Bisecting: 94 revisions left to test after this (roughly 7 steps) [988fcf0c0ea694f6e6ba00fc9eb1c6a2e72edfe8] [media] Add documentation for V4L2_PIX_FMT_VP9 testing commit 988fcf0c0ea694f6e6ba00fc9eb1c6a2e72edfe8 with gcc (GCC) 5.5.0 kernel signature: 968df3f78907a414c6510fcacc67ae9fd20156fe06424058f14da88813df80cc run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: crashed: WARNING in nf_unregister_net_hook run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 988fcf0c0ea694f6e6ba00fc9eb1c6a2e72edfe8 Bisecting: 46 revisions left to test after this (roughly 6 steps) [57425dc76d8174e7bfe94a11d089d3feeebb474c] [media] exynos4-is: don't break long lines testing commit 57425dc76d8174e7bfe94a11d089d3feeebb474c with gcc (GCC) 5.5.0 kernel signature: 515cbeafe51b0c0b38ffe9ce366a496d0ec1d7bb4a056d02e7f12b4cfcd5bb18 run #0: crashed: WARNING in nf_unregister_net_hook 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: OK # git bisect bad 57425dc76d8174e7bfe94a11d089d3feeebb474c Bisecting: 23 revisions left to test after this (roughly 5 steps) [7887d3710b6eac7c980f4e7b4b86bd383695ae80] [media] flexcop-i2c: mark printk continuation lines as such testing commit 7887d3710b6eac7c980f4e7b4b86bd383695ae80 with gcc (GCC) 5.5.0 kernel signature: 778ef2904be599ff22e28360c7d58085c04040498d5098ac85097c3007a769a4 run #0: crashed: WARNING in nf_unregister_net_hook run #1: crashed: general protection fault in batadv_iv_ogm_queue_add run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 7887d3710b6eac7c980f4e7b4b86bd383695ae80 Bisecting: 11 revisions left to test after this (roughly 4 steps) [e428744a9fa18a3e114fcd420d8263f8a3e274b3] [media] tuner-core: use %&ph for small buffer dumps testing commit e428744a9fa18a3e114fcd420d8263f8a3e274b3 with gcc (GCC) 5.5.0 kernel signature: 99e4f135418f817ab29f0f61c657d0b9a278513df15b8df3893e2b1d7b7bcacf run #0: crashed: WARNING in nf_unregister_net_hook run #1: crashed: WARNING in nf_unregister_net_hook run #2: crashed: WARNING in nf_unregister_net_hook run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad e428744a9fa18a3e114fcd420d8263f8a3e274b3 Bisecting: 5 revisions left to test after this (roughly 3 steps) [5ccb197de29269ba854066c4f1a92eb71974e126] [media] em28xx: don't break long lines testing commit 5ccb197de29269ba854066c4f1a92eb71974e126 with gcc (GCC) 5.5.0 kernel signature: b09354162e8342c8ba6fdd3d945dc3f87a9c73bd4669b7a81d2cac307195310d run #0: crashed: WARNING in nf_unregister_net_hook run #1: crashed: WARNING in nf_unregister_net_hook run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 5ccb197de29269ba854066c4f1a92eb71974e126 Bisecting: 2 revisions left to test after this (roughly 2 steps) [43ea43b9d8b27b7acd443ec59319faa3cdb8a616] [media] radio-bcm2048: don't ignore errors testing commit 43ea43b9d8b27b7acd443ec59319faa3cdb8a616 with gcc (GCC) 5.5.0 kernel signature: 23b411b49e4b6bdf2f322b116d490764c50497891c0886fba97fdabbd5d720a7 run #0: crashed: WARNING in nf_unregister_net_hook run #1: crashed: WARNING in nf_unregister_net_hook run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 43ea43b9d8b27b7acd443ec59319faa3cdb8a616 Bisecting: 1 revision left to test after this (roughly 1 step) [11a1e0ed7908f04c896e69d0eb65e478c12f8519] [media] dvb-usb: warn if return value for USB read/write routines is not checked testing commit 11a1e0ed7908f04c896e69d0eb65e478c12f8519 with gcc (GCC) 5.5.0 kernel signature: 25908ac5b4a687cb97baf5be2d9abb62e657b1696ed4dce93441bd4e6a5300e5 all runs: OK # git bisect good 11a1e0ed7908f04c896e69d0eb65e478c12f8519 Bisecting: 0 revisions left to test after this (roughly 0 steps) [aea983801c6b5e4e9af333a32220d580a77f6783] Merge tag 'v4.9-rc1' into patchwork testing commit aea983801c6b5e4e9af333a32220d580a77f6783 with gcc (GCC) 5.5.0 kernel signature: 94085a5e1b806274d2912f738b04ca829684289e36ac70e59af69f973b84d7fe all runs: OK # git bisect good aea983801c6b5e4e9af333a32220d580a77f6783 43ea43b9d8b27b7acd443ec59319faa3cdb8a616 is the first bad commit commit 43ea43b9d8b27b7acd443ec59319faa3cdb8a616 Author: Mauro Carvalho Chehab Date: Wed Oct 12 08:21:43 2016 -0300 [media] radio-bcm2048: don't ignore errors Remove this warning: drivers/staging/media/bcm2048/radio-bcm2048.c: In function 'bcm2048_set_rds_no_lock': drivers/staging/media/bcm2048/radio-bcm2048.c:467:6: warning: variable 'err' set but not used [-Wunused-but-set-variable] int err; ^~~ By returning the error code. Signed-off-by: Mauro Carvalho Chehab drivers/staging/media/bcm2048/radio-bcm2048.c | 2 ++ 1 file changed, 2 insertions(+) culprit signature: 23b411b49e4b6bdf2f322b116d490764c50497891c0886fba97fdabbd5d720a7 parent signature: 94085a5e1b806274d2912f738b04ca829684289e36ac70e59af69f973b84d7fe revisions tested: 33, total time: 6h29m59.386167359s (build: 2h47m41.892942162s, test: 3h35m28.06270409s) first bad commit: 43ea43b9d8b27b7acd443ec59319faa3cdb8a616 [media] radio-bcm2048: don't ignore errors recipients (to): ["devel@driverdev.osuosl.org" "gregkh@linuxfoundation.org" "mchehab@s-opensource.com"] recipients (cc): ["linux-kernel@vger.kernel.org" "linux-media@vger.kernel.org" "mchehab@kernel.org"] crash: WARNING in nf_unregister_net_hook bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 1 PID: 28 at net/netfilter/core.c:151 nf_unregister_net_hook+0x28a/0x3c0 net/netfilter/core.c:151 nf_unregister_net_hook: hook not found! Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 28 Comm: kworker/u4:2 Not tainted 4.9.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net ffff88012b30f890 ffffffff82d76a92 ffffffff86085f80 ffff88012b30f968 ffffffff868b2400 ffffffff84d73d0a 0000000000000009 ffff88012b30f958 ffffffff81641ef2 0000000041b58ab3 ffffffff86d6766f ffffffff81641d3c Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0x136/0x1d4 lib/dump_stack.c:51 [] panic+0x1b6/0x358 kernel/panic.c:179 [] __warn+0x18d/0x1b0 kernel/panic.c:542 [] warn_slowpath_fmt+0x92/0xb0 kernel/panic.c:565 [] nf_unregister_net_hook+0x28a/0x3c0 net/netfilter/core.c:151 [] nf_unregister_hook_list net/netfilter/core.c:484 [inline] [] netfilter_net_exit+0x36/0xa0 net/netfilter/core.c:516 [] ops_exit_list.isra.0+0x8e/0x120 net/core/net_namespace.c:136 [] cleanup_net+0x2d0/0x570 net/core/net_namespace.c:449 [] process_one_work+0x67d/0x14d0 kernel/workqueue.c:2096 [] worker_thread+0xe1/0x1050 kernel/workqueue.c:2230 [] kthread+0x20e/0x2d0 kernel/kthread.c:209 [] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433 Kernel Offset: disabled