bisecting cause commit starting from 70b971118e074d5042715587953f27929e99117a building syzkaller on 53ce8104a7b0e1c4c79ab17d5faddce6ad16a1f1 testing commit 70b971118e074d5042715587953f27929e99117a with gcc (GCC) 8.1.0 kernel signature: 65bd69c097c24c3b7890650c49d2811bac080033a4e36560bd14bbe910e9b3a6 run #0: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #1: crashed: BUG: unable to handle kernel paging request in syscall_enter_from_user_mode run #2: crashed: BUG: unable to handle kernel paging request in syscall_enter_from_user_mode run #3: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #4: crashed: BUG: unable to handle kernel paging request in syscall_enter_from_user_mode run #5: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #6: crashed: BUG: unable to handle kernel paging request in syscall_enter_from_user_mode run #7: crashed: BUG: unable to handle kernel paging request in syscall_enter_from_user_mode run #8: crashed: BUG: unable to handle kernel paging request in syscall_enter_from_user_mode run #9: crashed: BUG: unable to handle kernel paging request in syscall_enter_from_user_mode testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0 kernel signature: 6dfa0f35aba21d687b1bd4c0bfa87a921676234c6edbc1ee5cbdeb79dbde27a9 run #0: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #1: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #2: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #3: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #4: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #5: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #6: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #7: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #8: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #9: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0 kernel signature: bf771d77449c49683288607db070b950bac6f794c90572a574e9b25b02019885 run #0: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #1: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #2: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #3: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #4: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #5: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #6: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #7: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #8: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #9: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0 kernel signature: c9342363b4911ae0b58b10ac3b983e8655a5d8bf3e093c4bce2809f27d5175e8 run #0: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #1: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #2: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #3: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #4: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #5: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #6: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #7: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #8: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #9: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0 kernel signature: d638e0104f8400eddcba167d1d2daf751fd6d0604786a69c3e60705d17750c69 run #0: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #1: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #2: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #3: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #4: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #5: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #6: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #7: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #8: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #9: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0 kernel signature: 0b0ff08662e49f6d543c036e34f77abd30d93f426aef9278a9779d513c33c143 run #0: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #1: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #2: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #3: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 run #4: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #5: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #6: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #7: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #8: crashed: BUG: unable to handle kernel paging request in syscall_trace_enter run #9: crashed: BUG: unable to handle kernel paging request in bpf_trace_run2 testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0 kernel signature: 9708b76c825b01f42930f606eb21f95baa0605fbaa67043cb167915986595e42 all runs: crashed: BUG: unable to handle kernel paging request in __bpf_trace_sys_enter testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 kernel signature: 88bba3d59f613f0c6b1def033ccbf37629177c420774687c5ebf168344507438 run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #4: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #8: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #9: crashed: BUG: unable to handle kernel paging request in __bpf_trace_sys_enter testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 kernel signature: 912900e4cfc1ec4925062765f5b880b7d2dd4ee20a8c916a34857b2ad8059e9a all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 kernel signature: c02e4020c71f136a049b3f12510f6acd6c0761d85b2a88934eaf8d10b68b96e6 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 kernel signature: 31d539e11106c7fc00c3eb467a33c4f580edddb95334c123ee3000a251e22ba5 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 kernel signature: f5458911cb752c63a0a1c00d1842961e6296ba7b2ada44eb13d50c651a3ca586 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 kernel signature: 680648415855fb20db9af9f973615e63191cd047ef03da9778172985040a75f5 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 kernel signature: 52c9c04725ab7e1cee33999d8e63c91553f4365f58238b8a2c0f66d419840a70 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 kernel signature: 3bfa1d444c50c1a75a0c6de6b7e75bfb50aae16caf93e0e7fe175e01c7274195 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:37: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:39: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:42: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:45: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:48: undefined reference to `__ubsan_handle_type_mismatch_v1' testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 ./arch/x86/include/asm/bootparam_utils.h:36: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:38: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:41: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:44: undefined reference to `__ubsan_handle_type_mismatch_v1' ./arch/x86/include/asm/bootparam_utils.h:47: undefined reference to `__ubsan_handle_type_mismatch_v1' testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 arch/x86/entry/common.c:173: undefined reference to `__ubsan_handle_type_mismatch_v1' ./include/linux/compiler.h:254: undefined reference to `__ubsan_handle_type_mismatch_v1' ./include/linux/tracehook.h:190: undefined reference to `__ubsan_handle_type_mismatch_v1' ./include/linux/thread_info.h:60: undefined reference to `__ubsan_handle_type_mismatch_v1' ./include/trace/events/syscalls.h:17: undefined reference to `__ubsan_handle_type_mismatch_v1' testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 kernel signature: a81cc6035820c6526f39b523a84736f72f61c02576626b71825dff76026463a9 run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #4: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #8: crashed: BUG: sleeping function called from invalid context in tap_get_minor run #9: 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: db9f077373f1b19bb07202f36425d2ad5a09474c5b0e2346442f23dee2d2a43c run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #1: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #2: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #3: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #4: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #5: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #6: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #7: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le run #8: crashed: KASAN: use-after-free Read in batadv_iv_ogm_queue_add run #9: OK testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 kernel signature: 4902ac8f4cf9ea4ea3999a1ca79b437be313adb4fa57b3d92eac385be806f710 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: c6345d323260f3a3fae1b988c79d4edd45f64818e1344b85b5684264b46c7c36 run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["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@10.128.1.22:./syz-fuzzer"]: exit status 1 Connection timed out during banner exchange lost connection run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["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@10.128.0.199:./syz-fuzzer"]: exit status 1 Connection timed out during banner exchange lost connection run #2: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #3: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #4: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #5: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #6: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #7: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #8: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #9: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand # 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: f840cdee64e66ece74e913db7b91e2cec1d2280ca87048cee7024a6af2e139f7 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: d7458f77251e009a06d284d2e5901ae22210ef9251081ab609cf3c98ff71340f run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["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@10.128.15.207:./syz-fuzzer"]: exit status 1 Connection timed out during banner exchange lost connection run #1: 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-executor" "root@10.128.15.210:./syz-executor"] run #2: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #3: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #4: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #5: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #6: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #7: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #8: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand run #9: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand # 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: 2bdba0dc0aced57399edca2644cdf350b80020c69fa321a97acbc63923a72807 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 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: bcdbd875acac6e6bafd14686a6d6b3de34bc197ef965c787a242c262afd0a352 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 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: dc232b86c79595757ac12ea38979a3e1f35370e62badc7224b0dc82ea97232a7 run #0: crashed: UBSAN: undefined-behaviour in batadv_iv_ogm_queue_add 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: d27280eb69f08aebed01e1aec7b77ce82b4d5efe7ce4e13847cbc5c01d0bceac 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 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: bc15402c51e0af28832604de2cb95c9cb34c855684e254eca310e3474d815826 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 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: 7522329b5b94aa320bbf1e5d8cd7ca51249d7797315ab6cf4f6608cf98aa0ca1 all runs: OK # git bisect good 5ccb197de29269ba854066c4f1a92eb71974e126 Bisecting: 2 revisions left to test after this (roughly 2 steps) [2a96f60e89b9af8396fe06dc361909b5e3a9b4f0] [media] em28xx: convert the remaining printks to pr_foo testing commit 2a96f60e89b9af8396fe06dc361909b5e3a9b4f0 with gcc (GCC) 5.5.0 kernel signature: 0fe480632723a47854ce711b176ddc59407d7644210a8663de77554dd06002ae all runs: OK # git bisect good 2a96f60e89b9af8396fe06dc361909b5e3a9b4f0 Bisecting: 0 revisions left to test after this (roughly 1 step) [0919f3a04b5e7ea019ef393dee892454f054fe16] [media] tuner-core: don't break long lines testing commit 0919f3a04b5e7ea019ef393dee892454f054fe16 with gcc (GCC) 5.5.0 kernel signature: 5a3c1095a72d0dac1a902e83b391e34d78d8a7d58330f449c2d2f57ec593e10a run #0: crashed: UBSAN: undefined-behaviour in batadv_iv_ogm_queue_add 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 0919f3a04b5e7ea019ef393dee892454f054fe16 Bisecting: 0 revisions left to test after this (roughly 0 steps) [0a93dc1c18fd86f936bcb44f72dc044c0ea826a8] [media] dvb-core: don't break long lines testing commit 0a93dc1c18fd86f936bcb44f72dc044c0ea826a8 with gcc (GCC) 5.5.0 kernel signature: 876ca6d77cb0a73c0f93108d87949e3f668c78b3d5231a422237e1250b3cecbf 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 0a93dc1c18fd86f936bcb44f72dc044c0ea826a8 0a93dc1c18fd86f936bcb44f72dc044c0ea826a8 is the first bad commit commit 0a93dc1c18fd86f936bcb44f72dc044c0ea826a8 Author: Mauro Carvalho Chehab Date: Wed Oct 12 08:11:16 2016 -0300 [media] dvb-core: don't break long lines Due to the 80-cols checkpatch warnings, several strings were broken into multiple lines. This is not considered a good practice anymore, as it makes harder to grep for strings at the source code. So, join those continuation lines. Signed-off-by: Mauro Carvalho Chehab drivers/media/dvb-core/dvb_demux.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) culprit signature: 876ca6d77cb0a73c0f93108d87949e3f668c78b3d5231a422237e1250b3cecbf parent signature: 0fe480632723a47854ce711b176ddc59407d7644210a8663de77554dd06002ae revisions tested: 34, total time: 6h23m12.07609029s (build: 3h2m18.149439334s, test: 3h15m51.567010752s) first bad commit: 0a93dc1c18fd86f936bcb44f72dc044c0ea826a8 [media] dvb-core: don't break long lines recipients (to): ["linux-kernel@vger.kernel.org" "mchehab@s-opensource.com"] recipients (cc): ["linux-media@vger.kernel.org" "mchehab@kernel.org"] crash: WARNING in nf_unregister_net_hook team0 (unregistering): Port device team_slave_0 removed 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: 24 at net/netfilter/core.c:151 nf_unregister_net_hook+0x345/0x570 net/netfilter/core.c:151 nf_unregister_net_hook: hook not found! Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 24 Comm: kworker/u4:1 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 ffff88012b23f750 ffffffff835fdca1 1ffffffff1178802 0000000041b58ab3 ffffffff884a8664 ffffffff835fdae4 ffff88012b23f710 0000000000000000 ffff88012b23f770 ffffffff815abfc6 ffff88012b23f720 ffffffff8741b7f1 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0x1bd/0x29c lib/dump_stack.c:51 [] panic+0x1e5/0x44f kernel/panic.c:179 [] __warn+0x194/0x1d0 kernel/panic.c:542 [] warn_slowpath_fmt+0x92/0xb0 kernel/panic.c:565 [] nf_unregister_net_hook+0x345/0x570 net/netfilter/core.c:151 [] nf_unregister_hook_list net/netfilter/core.c:484 [inline] [] netfilter_net_exit+0x36/0xd0 net/netfilter/core.c:516 [] ops_exit_list+0xae/0x180 net/core/net_namespace.c:136 [] cleanup_net+0x320/0x720 net/core/net_namespace.c:449 [] process_one_work+0x7ab/0x1ae0 kernel/workqueue.c:2096 [] worker_thread+0x60c/0x1450 kernel/workqueue.c:2230 [] kthread+0x23c/0x390 kernel/kthread.c:209 [] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433 Kernel Offset: disabled