ci2 starts bisection 2024-09-22 12:23:22.927892994 +0000 UTC m=+237593.862961044 bisecting cause commit starting from 88264981f2082248e892a706b2c5004650faac54 building syzkaller on 6f888b7530906167ecb1f5a35e060fec736d6d32 ensuring issue is reproducible on original commit 88264981f2082248e892a706b2c5004650faac54 testing commit 88264981f2082248e892a706b2c5004650faac54 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f4534a423c8982e4f9947c90e5c27ecd37253d38068ba652f7172cf4a0a6d4df all runs: crashed: INFO: task hung in bch2_fs_read_only representative crash: INFO: task hung in bch2_fs_read_only, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 88264981f2082248e892a706b2c5004650faac54 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 96d62600c688b5c58debce43159b03733411ac56b90d2742660332b6a938935f all runs: crashed: INFO: task hung in bch2_fs_read_only representative crash: INFO: task hung in bch2_fs_read_only, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4037 full=8172 leaves diff=2113 split chunks (needed=false): <2113> split chunk #0 of len 2113 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 88264981f2082248e892a706b2c5004650faac54 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 39c8334672b26a674aa5a520d364eab434a10a1776820a4c097ca108f3b84025 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 88264981f2082248e892a706b2c5004650faac54 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c5a3dd5caaeea5a5be9ff69f4606bbb436ad9c68cd8bd994120016c90b24f9a9 all runs: crashed: INFO: task hung in bch2_fs_read_only representative crash: INFO: task hung in bch2_fs_read_only, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit 88264981f2082248e892a706b2c5004650faac54 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 134b93e32d1bbdfb95877b1ded254f7a2fde5b8f65e77fcdb9aa7702aba514f7 all runs: crashed: INFO: task hung in bch2_fs_read_only representative crash: INFO: task hung in bch2_fs_read_only, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit 88264981f2082248e892a706b2c5004650faac54 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b65fad014dbafde8c0c1914c8fd5a98c3f9e20436b50f1860e576a3ee2143162 all runs: crashed: INFO: task hung in bch2_fs_read_only representative crash: INFO: task hung in bch2_fs_read_only, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit 88264981f2082248e892a706b2c5004650faac54 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 07367c26165e637541f0d0488fc9fe0b38e5c80c4227cf191dc87a70822e6cd5 all runs: crashed: INFO: task hung in bch2_fs_read_only representative crash: INFO: task hung in bch2_fs_read_only, types: [HANG] the chunk can be dropped minimized to 423 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_NHLT ACPI_PLATFORM_PROFILE ADDRESS_MASKING ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP ARCH_SUPPORTS_RT ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASUS_TF103C_DOCK ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_LEDS ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_COMMON_SPECTRAL ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCACHEFS_DEBUG BCACHEFS_ERASURE_CODING BCACHEFS_FS BCACHEFS_POSIX_ACL BCACHEFS_QUOTA BCACHEFS_SIX_OPTIMISTIC_SPIN BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_NF_EBTABLES_LEGACY BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_AUTOSUSPEND BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO BT_MSFTEXT BT_MTK BT_MTKSDIO BT_MTKUART BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_ESD_USB CAN_ETAS_ES58X CAN_F81604 CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_UCAN CAN_VCAN CAN_VXCAN CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MAX CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF CRYPTO_842 CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_VMAC CRYPTO_WP512 CRYPTO_XCTR CRYPTO_XXHASH CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_AUX_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_FBDEV_EMULATION DRM_GEM_SHMEM_HELPER DRM_GM12U320 DRM_GUD DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM ENCRYPTED_KEYS FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MMC MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed picked [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6add3a2c1f799775e2e37c8218438f1858771fe34ad1d0a4585c17f89422435b all runs: crashed: INFO: task hung in bch2_fs_read_only representative crash: INFO: task hung in bch2_fs_read_only, types: [HANG] testing release v6.10 testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 806c0a0c35a58cbc0825e4f1e4e4475fb222a580880339321d63cfb9b5fb4e44 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #7: OK run #8: OK run #9: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek, types: [UNKNOWN] testing release v6.9 testing commit a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5c30382791070ef902ea420a05f3c616ef5224ee3027abd11cde3926397f957d run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek 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 representative crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek, types: [UNKNOWN] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 testing release v6.7 testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1a5a23974e83f3cd088233ac7c83d56add4ee154a792e60e592f894339c6d0cd all runs: OK false negative chance: 0.000 # git bisect start 0c3836482481200ead7b416ca80c68a29cfdaabd 0dd3ee31125508cd67f7e7172247f05b7fd1753a Bisecting: 23619 revisions left to test after this (roughly 15 steps) [e5e038b7ae9da96b93974bf072ca1876899a01a3] Merge tag 'fs_for_v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs testing commit e5e038b7ae9da96b93974bf072ca1876899a01a3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8930a452b163656f9739987e460634a44b6eaa766734e4889f637e31c6f15dfd all runs: OK false negative chance: 0.000 # git bisect good e5e038b7ae9da96b93974bf072ca1876899a01a3 Bisecting: 11839 revisions left to test after this (roughly 14 steps) [47e9bff7fc042b28eb4cf375f0cf249ab708fdfa] Merge tag 'erofs-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs testing commit 47e9bff7fc042b28eb4cf375f0cf249ab708fdfa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f6acdc19a09bdcc87cf52353352f74bf0f3004daa869e725aba4b07226589f38 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek, types: [UNKNOWN] # git bisect bad 47e9bff7fc042b28eb4cf375f0cf249ab708fdfa Bisecting: 5752 revisions left to test after this (roughly 13 steps) [bb41fe35dce709ea8f91d313c558ee6c68f705ef] Merge tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc testing commit bb41fe35dce709ea8f91d313c558ee6c68f705ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c7976b85f7400ac666609b92f4601e86e067cdcc3e73b594203c2f7cdb4b9a76 all runs: OK false negative chance: 0.000 # git bisect good bb41fe35dce709ea8f91d313c558ee6c68f705ef Bisecting: 2876 revisions left to test after this (roughly 12 steps) [fe35bf27a14ded5997d8ceee7f7b10a0982e41e4] Merge tag 'exfat-for-6.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat testing commit fe35bf27a14ded5997d8ceee7f7b10a0982e41e4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8143aa546dc7f937e49f51787a94673eaa51b82a02615e658b03d9cb22b80813 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek, types: [UNKNOWN] # git bisect bad fe35bf27a14ded5997d8ceee7f7b10a0982e41e4 Bisecting: 1437 revisions left to test after this (roughly 11 steps) [f7e232de51bb1b45646e5b7dc4ebcf13510f2630] drm/amdgpu: Fix VCN allocation in CPX partition testing commit f7e232de51bb1b45646e5b7dc4ebcf13510f2630 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ae5d2aaacd31a200624e6cbd52e474185ac7c7daa5d9831e603cbc7b80008c41 all runs: OK false negative chance: 0.000 # git bisect good f7e232de51bb1b45646e5b7dc4ebcf13510f2630 Bisecting: 718 revisions left to test after this (roughly 10 steps) [6d735722063a945de56472bdc6bfcb170fd43b86] usb: dwc3: core: Prevent phy suspend during init testing commit 6d735722063a945de56472bdc6bfcb170fd43b86 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7d8c9b7558188c1c26ed8737e667355b966ae3a1715e66243fac83d18715b471 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_opts_apply run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_opts_apply run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in bch2_opts_apply, types: [UNKNOWN] unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20 # git bisect skip 6d735722063a945de56472bdc6bfcb170fd43b86 Bisecting: 718 revisions left to test after this (roughly 10 steps) [0e95ed6452cb079cf9587c774a475a7d83c7e040] drm/amdgpu/pm: Remove gpu_od if it's an empty directory testing commit 0e95ed6452cb079cf9587c774a475a7d83c7e040 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 713c3057be7ce41d9631a77d8d796f3f61ebe14fa1f0d9ce438318a50cdcda8d run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_opts_apply run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_opts_apply run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_opts_apply run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_opts_apply run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in bch2_opts_apply, types: [UNKNOWN] # git bisect bad 0e95ed6452cb079cf9587c774a475a7d83c7e040 Bisecting: 363 revisions left to test after this (roughly 9 steps) [a1505c47e78a4d4837e2c72b2d5f51e821689349] Merge tag 'perf-urgent-2024-04-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit a1505c47e78a4d4837e2c72b2d5f51e821689349 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 49eee92b11942a2b70713b42087a6ac992df42423d5e99e2ced0b31be935a03a run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek, types: [UNKNOWN] # git bisect bad a1505c47e78a4d4837e2c72b2d5f51e821689349 Bisecting: 172 revisions left to test after this (roughly 8 steps) [2ae9a8972ce04046957f8af214509cebfd3bfb9c] Merge tag 'net-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 2ae9a8972ce04046957f8af214509cebfd3bfb9c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6877cab137cfca311c780b70e5d4817c6825b9303f5b20e876863fb1c5aca418 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek, types: [UNKNOWN] # git bisect bad 2ae9a8972ce04046957f8af214509cebfd3bfb9c Bisecting: 81 revisions left to test after this (roughly 7 steps) [e1dc191dbf3f35cf07790b52110267bef55515a2] Merge tag 'bcachefs-2024-04-10' of https://evilpiepirate.org/git/bcachefs testing commit e1dc191dbf3f35cf07790b52110267bef55515a2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 23da7a1bc8880bffaf2a3f60f26f818f4109d80bde55fb47c1c3f8b96c37ae26 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek, types: [UNKNOWN] # git bisect bad e1dc191dbf3f35cf07790b52110267bef55515a2 Bisecting: 42 revisions left to test after this (roughly 6 steps) [a6189a7407795b3f5167ea532ac85931cd26083a] Merge tag 'turbostat-2024.04.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux testing commit a6189a7407795b3f5167ea532ac85931cd26083a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7a4627548427f6020d05a48cb5a9d71582d852235270b3c89d344ba3c0a46ad0 all runs: OK false negative chance: 0.002 # git bisect good a6189a7407795b3f5167ea532ac85931cd26083a Bisecting: 21 revisions left to test after this (roughly 5 steps) [5ab4beb759c05c74fb385ac5ca0ade5d3db67975] bcachefs: Don't scan for btree nodes when we can reconstruct testing commit 5ab4beb759c05c74fb385ac5ca0ade5d3db67975 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4ccfb804a5e4e8646610dd5128a7c7ec49f22ce7662d0ec641230831a2064fa run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek, types: [UNKNOWN] # git bisect bad 5ab4beb759c05c74fb385ac5ca0ade5d3db67975 Bisecting: 9 revisions left to test after this (roughly 3 steps) [05801b6526156aefe55c0440fab877109c9a89c5] bcachefs: Disable errors=panic for BCH_IOCTL_FSCK_OFFLINE testing commit 05801b6526156aefe55c0440fab877109c9a89c5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2768744a2ba876a1a2213192f425b50baef5712743104070d8dcf3b1c7b6105a all runs: OK false negative chance: 0.002 # git bisect good 05801b6526156aefe55c0440fab877109c9a89c5 Bisecting: 4 revisions left to test after this (roughly 2 steps) [30e615a2ce6601d85729caefd8ac15634f848e59] bcachefs: Fix gap buffer bug in bch2_journal_key_insert_take() testing commit 30e615a2ce6601d85729caefd8ac15634f848e59 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6b00a889d83d565c44d4a2c42d0c0f3081facce5e810a7ce970af9cdd01ad86e all runs: OK false negative chance: 0.002 # git bisect good 30e615a2ce6601d85729caefd8ac15634f848e59 Bisecting: 1 revision left to test after this (roughly 1 step) [9c432404b9555c9444cbf6c8feaf52c0d8cad486] bcachefs: fix eytzinger0_find_gt() testing commit 9c432404b9555c9444cbf6c8feaf52c0d8cad486 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0b44dd15820914c3d34724d49d1dbb6b1699cd9ae02a9c137a74abd28a8847c4 all runs: OK false negative chance: 0.002 # git bisect good 9c432404b9555c9444cbf6c8feaf52c0d8cad486 Bisecting: 0 revisions left to test after this (roughly 0 steps) [359571c327a726d622786aef3833637dacfd5d38] bcachefs: Fix check_topology() when using node scan testing commit 359571c327a726d622786aef3833637dacfd5d38 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 58f4aaffad7c1b0f4b8515daf5a8301b33d974eb98e3b97134ee12f526e43e86 run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek, types: [UNKNOWN] # git bisect bad 359571c327a726d622786aef3833637dacfd5d38 359571c327a726d622786aef3833637dacfd5d38 is the first bad commit commit 359571c327a726d622786aef3833637dacfd5d38 Author: Kent Overstreet Date: Tue Apr 9 00:02:47 2024 -0400 bcachefs: Fix check_topology() when using node scan shoot down journal keys _before_ populating journal keys with pointers to scanned nodes Signed-off-by: Kent Overstreet fs/bcachefs/btree_gc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) accumulated error probability: 0.01 culprit signature: 58f4aaffad7c1b0f4b8515daf5a8301b33d974eb98e3b97134ee12f526e43e86 parent signature: 0b44dd15820914c3d34724d49d1dbb6b1699cd9ae02a9c137a74abd28a8847c4 reproducer is flaky (0.26 repro chance estimate) revisions tested: 27, total time: 8h58m12.985118285s (build: 3h56m42.934390867s, test: 4h49m13.158235134s) first bad commit: 359571c327a726d622786aef3833637dacfd5d38 bcachefs: Fix check_topology() when using node scan recipients (to): ["kent.overstreet@linux.dev"] recipients (cc): [] crash: BUG: unable to handle kernel NULL pointer dereference in btree_node_iter_and_journal_peek BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 800000010f7b2067 P4D 800000010f7b2067 PUD 10438f067 PMD 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 24 Comm: kworker/1:0 Not tainted 6.9.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: bcachefs_write_ref bch2_do_invalidates_work RIP: 0010:bch2_bkey_buf_realloc fs/bcachefs/bkey_buf.h:16 [inline] RIP: 0010:bch2_bkey_buf_reassemble fs/bcachefs/bkey_buf.h:27 [inline] RIP: 0010:btree_node_iter_and_journal_peek+0xc8/0x5d0 fs/bcachefs/btree_iter.c:898 Code: 00 00 4c 89 74 24 20 4c 89 f7 4c 89 e6 50 53 55 e8 0d 26 00 00 48 83 c4 18 4c 89 e7 e8 01 1f 00 00 49 89 c4 48 89 d5 49 8b 1f <80> 38 0d 72 33 49 8d 47 08 48 39 c3 75 2a 48 8b 44 24 08 48 8d b8 RSP: 0018:ffffc900000d37d8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffc900000d3a00 RCX: 578da58a1a59f400 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 000000000000000a R09: ffff88810d7caf10 R10: 0000000000000010 R11: 0000000000000010 R12: 0000000000000000 R13: ffff888106b4c228 R14: ffff888106b4c000 R15: ffffc900000d39f8 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000016d1bc000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btree_path_down fs/bcachefs/btree_iter.c:926 [inline] bch2_btree_path_traverse_one+0xb1b/0xdd0 fs/bcachefs/btree_iter.c:1177 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:225 [inline] __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2059 [inline] bch2_btree_iter_peek_upto+0x35a/0xf40 fs/bcachefs/btree_iter.c:2158 bch2_btree_iter_peek_upto_type fs/bcachefs/btree_iter.h:633 [inline] bch2_do_invalidates_work+0x30d/0xe80 fs/bcachefs/alloc_background.c:2014 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x2a3/0x5b0 kernel/workqueue.c:3335 worker_thread+0x23e/0x300 kernel/workqueue.c:3416 kthread+0xea/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_bkey_buf_realloc fs/bcachefs/bkey_buf.h:16 [inline] RIP: 0010:bch2_bkey_buf_reassemble fs/bcachefs/bkey_buf.h:27 [inline] RIP: 0010:btree_node_iter_and_journal_peek+0xc8/0x5d0 fs/bcachefs/btree_iter.c:898 Code: 00 00 4c 89 74 24 20 4c 89 f7 4c 89 e6 50 53 55 e8 0d 26 00 00 48 83 c4 18 4c 89 e7 e8 01 1f 00 00 49 89 c4 48 89 d5 49 8b 1f <80> 38 0d 72 33 49 8d 47 08 48 39 c3 75 2a 48 8b 44 24 08 48 8d b8 RSP: 0018:ffffc900000d37d8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffc900000d3a00 RCX: 578da58a1a59f400 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 000000000000000a R09: ffff88810d7caf10 R10: 0000000000000010 R11: 0000000000000010 R12: 0000000000000000 R13: ffff888106b4c228 R14: ffff888106b4c000 R15: ffffc900000d39f8 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000016d1bc000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 4c 89 74 24 20 mov %r14,0x20(%rsp) 7: 4c 89 f7 mov %r14,%rdi a: 4c 89 e6 mov %r12,%rsi d: 50 push %rax e: 53 push %rbx f: 55 push %rbp 10: e8 0d 26 00 00 call 0x2622 15: 48 83 c4 18 add $0x18,%rsp 19: 4c 89 e7 mov %r12,%rdi 1c: e8 01 1f 00 00 call 0x1f22 21: 49 89 c4 mov %rax,%r12 24: 48 89 d5 mov %rdx,%rbp 27: 49 8b 1f mov (%r15),%rbx * 2a: 80 38 0d cmpb $0xd,(%rax) <-- trapping instruction 2d: 72 33 jb 0x62 2f: 49 8d 47 08 lea 0x8(%r15),%rax 33: 48 39 c3 cmp %rax,%rbx 36: 75 2a jne 0x62 38: 48 8b 44 24 08 mov 0x8(%rsp),%rax 3d: 48 rex.W 3e: 8d .byte 0x8d 3f: b8 .byte 0xb8