bisecting cause commit starting from 171d4ff79f965c1f164705ef0aaea102a6ad238b building syzkaller on 54289b0835634ca07a8117613c48b73e9e647d13 testing commit 171d4ff79f965c1f164705ef0aaea102a6ad238b with gcc (GCC) 8.1.0 kernel signature: a347430dba118cf9d0c19ab5b6baee8f88ded0a022d85befed95cccec656841d run #0: crashed: WARNING: refcount bug in __tcf_action_put run #1: crashed: WARNING: refcount bug in __tcf_action_put run #2: crashed: WARNING: refcount bug in __tcf_action_put run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0 kernel signature: 636fd885abbef62ead321ec707da32fa1ea6a07a1e087a0d1570a57fb57cdaad run #0: crashed: WARNING: refcount bug in __tcf_action_put run #1: crashed: WARNING: refcount bug in __tcf_action_put run #2: crashed: WARNING: refcount bug in __tcf_action_put run #3: crashed: WARNING: refcount bug in __tcf_action_put run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: boot failed: can't ssh into the instance testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0 kernel signature: 09ab669a55bbfbb03ac81f5caeec5b482ee64d6dfc9b3dca3f012ec644c56f92 all runs: crashed: KASAN: use-after-free Read in tcf_action_destroy testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0 kernel signature: 91089c7546b711aa8ac38d16327e8e27313124b048b697f55b6d95ab6365fd99 all runs: crashed: KASAN: use-after-free Read in tcf_action_destroy testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0 kernel signature: 8e8c54f5aaefa8015f49dc3ca7912156db3a378d1356a0e8ac4a21a5a5c8cab3 all runs: crashed: KASAN: use-after-free Read in tcf_action_destroy testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0 kernel signature: 27aa476243aff055a77470e1649a6b71a0d9a280c49bdaa5be9ac2979aca81a8 all runs: crashed: KASAN: use-after-free Read in tcf_action_destroy testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0 kernel signature: 5cb698f6d316e29df4a1d9d0b1f8ec5670e4c95ffd69568bb0ae09424f3715d3 all runs: crashed: KASAN: use-after-free Read in tcf_action_destroy testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 kernel signature: 8658521ecba5c8e4ebedb4334b14c97c5c2c06bc88d3a7931ae31f5480e5eb53 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 kernel signature: 08a9469303165de44c1e0b759136ef38d43a633f95ab73ea3fa75ef1f062df9e 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: KASAN: use-after-free Read in tcf_action_destroy testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 kernel signature: c99bb759db15311ed34bed727b15a439cf56d6a473b47bf7d90b187de71bb29a 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: 102d42ee241cbe4fb4a58b0630da35d09686f15d65a56904b6c4f914e7582695 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: KASAN: use-after-free Read in tcf_action_destroy testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 kernel signature: 7f84588c7bec9b03dc455be12c9cc280efaa8d400bb6873cce92d2b157f5ff6e 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: 5609665c12df514717619a23bd9925192a94fac81ff241d66ac73c84099c394a 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: OK testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 kernel signature: 8df3bde70e1d854b2acf63d705638ab45d477e98a531d9d2db48ec531784a22a run #0: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_vq_reset run #1: basic kernel testing failed: UBSAN: undefined-behaviour in handle_null_ptr_deref 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: 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: e4b50d57937a4729b884eb5fb4b6a418377aef6452f9fe5683dd6f2e2006bfa0 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 handle_null_ptr_deref 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 handle_null_ptr_deref 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: 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: 24d9f4ffb8bf387b25a1478e5932692cbe53c4764085a395e4e90fe8ed41aaaf 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: crashed: BUG: sleeping function called from invalid context in tap_get_minor run #7: crashed: BUG: sleeping function called from invalid context in tap_get_minor 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: 253a26dc1b1fbae75f73a8e31d72158b95bcf98ff09f23b2cc60dce5c7354dea all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 kernel signature: da399bd06f08e77ff0e711e765b805f3d857a854db73ef7a59b14a5e23e4cf6d all runs: OK # git bisect start a351e9b9fc24e982ec2f0e76379a49826036da12 69973b830859bc6529a7a0468ba0d80ee5117826 Bisecting: 14068 revisions left to test after this (roughly 14 steps) [55aac6ef53e114c28170ee3f79065cfa8ca9cf3f] Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending testing commit 55aac6ef53e114c28170ee3f79065cfa8ca9cf3f with gcc (GCC) 5.5.0 kernel signature: 63bddae984012306246ace0bc2bdc240df5bdae35cd20891000d52c874185603 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: OK run #9: OK # git bisect skip 55aac6ef53e114c28170ee3f79065cfa8ca9cf3f Bisecting: 14068 revisions left to test after this (roughly 14 steps) [15883a43af0bcd10b3f3173bca4a0e60518bc154] net: sun: cassini: use new api ethtool_{get|set}_link_ksettings testing commit 15883a43af0bcd10b3f3173bca4a0e60518bc154 with gcc (GCC) 5.5.0 kernel signature: 69072d6711d4aaa1e4b3ea359019b3b804d69570b0181df201cb43f88f818059 all runs: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand # git bisect skip 15883a43af0bcd10b3f3173bca4a0e60518bc154 Bisecting: 14068 revisions left to test after this (roughly 14 steps) [1a287cfea17c3c14c03151fa970baf86b9055c26] btrfs: remove unused parameters from btrfs_cmp_data testing commit 1a287cfea17c3c14c03151fa970baf86b9055c26 with gcc (GCC) 5.5.0 kernel signature: 647eb1cb269acef925b3ee601458d6dfae9e593c37c3c3e3c07e245eca95188a all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le # git bisect skip 1a287cfea17c3c14c03151fa970baf86b9055c26 Bisecting: 14068 revisions left to test after this (roughly 14 steps) [b42c6761fd1651f564491b53016046c9ebf0b2a9] amd-xgbe: Be sure to set MDIO modes on device (re)start testing commit b42c6761fd1651f564491b53016046c9ebf0b2a9 with gcc (GCC) 5.5.0 kernel signature: 0d3d1c57eeb1d587c186b15ed7a4d3f046beb652ecfb4cb8b042fa0c18df34e8 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le # git bisect skip b42c6761fd1651f564491b53016046c9ebf0b2a9 Bisecting: 14068 revisions left to test after this (roughly 14 steps) [bcf934894f1f4505d0186ec7569949de6e8dd97c] Btrfs: cleanup unused cached_state in __extent_writepage_io testing commit bcf934894f1f4505d0186ec7569949de6e8dd97c with gcc (GCC) 5.5.0 kernel signature: 1efce20e9e05c87795cf2ee418ee8b39a425f0f9f356434f804094dc73522852 all runs: basic kernel testing failed: UBSAN: undefined-behaviour in vhost_init_is_le # git bisect skip bcf934894f1f4505d0186ec7569949de6e8dd97c Bisecting: 14068 revisions left to test after this (roughly 14 steps) [74d81bfae8e3f52e956367f6ed764db269b87091] mm: un-export wake_up_page functions testing commit 74d81bfae8e3f52e956367f6ed764db269b87091 with gcc (GCC) 5.5.0 kernel signature: ef86d9f904710016a06300f685750e7aa72f6b0e4da87fd4ae49d4d2ec7a503a all runs: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand # git bisect skip 74d81bfae8e3f52e956367f6ed764db269b87091 Bisecting: 14068 revisions left to test after this (roughly 14 steps) [dd32cb5d8fd42316bf8c2b9f7e5c51a38625f755] perf vendor events intel: Add uncore events for Sandy Bridge Server testing commit dd32cb5d8fd42316bf8c2b9f7e5c51a38625f755 with gcc (GCC) 5.5.0 kernel signature: 4f773e1641be134617f171b058e328ffb9a6586be61d642e82245bdb197cb67c 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: crashed: WARNING in nf_unregister_net_hook run #8: OK run #9: OK # git bisect bad dd32cb5d8fd42316bf8c2b9f7e5c51a38625f755 Bisecting: 6982 revisions left to test after this (roughly 13 steps) [b5cab0da75c292ffa0fbd68dd2c820066b2842de] Merge branch 'stable/for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb testing commit b5cab0da75c292ffa0fbd68dd2c820066b2842de with gcc (GCC) 5.5.0 kernel signature: 135ca25bc62a79ccd4c214338cf1289625574cdfef147409c258600b023c9ccd all runs: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand # git bisect skip b5cab0da75c292ffa0fbd68dd2c820066b2842de Bisecting: 6982 revisions left to test after this (roughly 13 steps) [25ec587c02c3008ead4046a998eb412ce41c72ec] [media] rc: don't break long lines testing commit 25ec587c02c3008ead4046a998eb412ce41c72ec with gcc (GCC) 5.5.0 kernel signature: de7d679c58ac79f7d441bf2c451fbeb740736adf5b3f6ad7525aa2177ec1b545 all runs: OK # git bisect good 25ec587c02c3008ead4046a998eb412ce41c72ec Bisecting: 6905 revisions left to test after this (roughly 13 steps) [93173b5bf2841da7e3a9b0cb1312ef5c87251524] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm testing commit 93173b5bf2841da7e3a9b0cb1312ef5c87251524 with gcc (GCC) 5.5.0 kernel signature: 1cb3ac1cc7231fc3b8f6dc73be468d526b0326a64e03c744f79820b3459a63f0 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@10.128.10.53:./syz-fuzzer"]: exit status 1 Connection timed out during banner exchange lost connection run #1: boot failed: UBSAN: undefined-behaviour in acpi_ds_create_operand 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 93173b5bf2841da7e3a9b0cb1312ef5c87251524 Bisecting: 6905 revisions left to test after this (roughly 13 steps) [87227fe7e42060af9bc8977fc17427e7c9cadb5d] tipc: remove tsk->connected for connectionless sockets testing commit 87227fe7e42060af9bc8977fc17427e7c9cadb5d with gcc (GCC) 5.5.0 kernel signature: 7be47234a27e69c04a0f451680530fdbd2575111366b1bfd1f3218e5fde52444 all runs: OK # git bisect good 87227fe7e42060af9bc8977fc17427e7c9cadb5d Bisecting: 6736 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: f478b3cf7711bfb56a3f2a2d4af5be12b4714af5493542c60a686cbe7ac2c4de 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@10.128.1.38:./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@10.128.1.2:./syz-fuzzer"]: exit status 1 Connection timed out during banner exchange lost connection run #2: 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@10.128.10.45:./syz-fuzzer"] Warning: Permanently added '10.128.10.45' (ECDSA) to the list of known hosts. run #3: 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@10.128.0.130:./syz-fuzzer"]: exit status 1 Connection timed out during banner exchange lost connection 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: 6736 revisions left to test after this (roughly 13 steps) [e7ff3a47630d9512d0bcbdfa73660021087ba445] x86/amd: Check for the C1E bug post ACPI subsystem init testing commit e7ff3a47630d9512d0bcbdfa73660021087ba445 with gcc (GCC) 5.5.0 kernel signature: 3eedc9f79d500693c1663e474e33f3496a2b8171220cb925f23a38fb44a62a49 all runs: OK # git bisect good e7ff3a47630d9512d0bcbdfa73660021087ba445 Bisecting: 6736 revisions left to test after this (roughly 13 steps) [e687607116bc45afcbbcd0097129573f9729ff21] Merge tag 'bcm2835-dt-64-next-2016-11-18' into devicetree-arm64/next testing commit e687607116bc45afcbbcd0097129573f9729ff21 with gcc (GCC) 5.5.0 kernel signature: b14e2db4c0a1b1e424bb465758e5e69e88427fff48ac1ef8d796424868a33896 all runs: OK # git bisect good e687607116bc45afcbbcd0097129573f9729ff21 Bisecting: 6711 revisions left to test after this (roughly 13 steps) [5668bfdd90cd7b330aa25a5ff853b55dc224d13d] platform/chrome: cros_ec_dev - Register cros-ec sensors testing commit 5668bfdd90cd7b330aa25a5ff853b55dc224d13d with gcc (GCC) 5.5.0 kernel signature: 33556d53e2d3a0dec735e0643a0dd251f4ff81f59b931a952415b009caaa67de 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: WARNING in nf_unregister_net_hook # git bisect bad 5668bfdd90cd7b330aa25a5ff853b55dc224d13d Bisecting: 1 revision left to test after this (roughly 1 step) [c14dca07a31dac8bd91aa818df62fb3bf1d846c5] iio: cros_ec_sensors: add ChromeOS EC Contiguous Sensors driver testing commit c14dca07a31dac8bd91aa818df62fb3bf1d846c5 with gcc (GCC) 5.5.0 kernel signature: b28b21d6ef514d62440e403a50e18c51a5331ef5b71f0a914a98996e4efeeb2a 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: WARNING in nf_unregister_net_hook # git bisect bad c14dca07a31dac8bd91aa818df62fb3bf1d846c5 Bisecting: 0 revisions left to test after this (roughly 0 steps) [974e6f02e27e1b46c6c5e600e70ced25079f73eb] iio: cros_ec_sensors_core: Add common functions for the ChromeOS EC Sensor Hub. testing commit 974e6f02e27e1b46c6c5e600e70ced25079f73eb with gcc (GCC) 5.5.0 kernel signature: 93523b2bff5a21111cbec45803f864d3f450fe3a902f86b89771dd114dd48bbd 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: crashed: WARNING in nf_unregister_net_hook run #9: crashed: WARNING in nf_unregister_net_hook # git bisect bad 974e6f02e27e1b46c6c5e600e70ced25079f73eb 974e6f02e27e1b46c6c5e600e70ced25079f73eb is the first bad commit commit 974e6f02e27e1b46c6c5e600e70ced25079f73eb Author: Enric Balletbo i Serra Date: Mon Aug 1 11:54:35 2016 +0200 iio: cros_ec_sensors_core: Add common functions for the ChromeOS EC Sensor Hub. Add the core functions to be able to support the sensors attached behind the ChromeOS Embedded Controller and used by other IIO cros-ec sensor drivers. The cros_ec_sensor_core driver matches with current driver in ChromeOS 4.4 tree, so it includes all the fixes at the moment. The support for this driver was made by Gwendal Grignou. The original patch and all the fixes has been squashed and rebased on top of mainline. Signed-off-by: Gwendal Grignou Signed-off-by: Guenter Roeck [eballetbo: split, squash and rebase on top of mainline the patches found in ChromeOS tree] Signed-off-by: Enric Balletbo i Serra Signed-off-by: Jonathan Cameron Documentation/ABI/testing/sysfs-bus-iio-cros-ec | 18 + drivers/iio/common/Kconfig | 1 + drivers/iio/common/Makefile | 1 + drivers/iio/common/cros_ec_sensors/Kconfig | 14 + drivers/iio/common/cros_ec_sensors/Makefile | 5 + .../common/cros_ec_sensors/cros_ec_sensors_core.c | 450 +++++++++++++++++++++ .../common/cros_ec_sensors/cros_ec_sensors_core.h | 175 ++++++++ include/linux/mfd/cros_ec.h | 9 + include/linux/mfd/cros_ec_commands.h | 99 ++++- 9 files changed, 767 insertions(+), 5 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-cros-ec create mode 100644 drivers/iio/common/cros_ec_sensors/Kconfig create mode 100644 drivers/iio/common/cros_ec_sensors/Makefile create mode 100644 drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c create mode 100644 drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.h parent commit 1001354ca34179f3db924eb66672442a173147dc wasn't tested testing commit 1001354ca34179f3db924eb66672442a173147dc with gcc (GCC) 5.5.0 kernel signature: 5c95e83062880c33851d9f9932409790ad10fad845ced81898cfdebe83a00c46 culprit signature: 93523b2bff5a21111cbec45803f864d3f450fe3a902f86b89771dd114dd48bbd parent signature: 5c95e83062880c33851d9f9932409790ad10fad845ced81898cfdebe83a00c46 revisions tested: 39, total time: 7h47m15.574343973s (build: 3h46m56.026632202s, test: 3h54m54.498332823s) first bad commit: 974e6f02e27e1b46c6c5e600e70ced25079f73eb iio: cros_ec_sensors_core: Add common functions for the ChromeOS EC Sensor Hub. recipients (to): ["enric.balletbo@collabora.com" "groeck@chromium.org" "gwendal@chromium.org" "jic23@kernel.org"] recipients (cc): [] 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 ffffffff8381b341 1ffffffff11b8802 0000000041b58ab3 ffffffff886f8514 ffffffff8381b184 ffff88012b23f710 0000000000000000 ffff88012b23f770 ffffffff815abfc6 ffff88012b23f720 ffffffff876387f1 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