ci2 starts bisection 2024-11-03 13:00:10.303938093 +0000 UTC m=+160987.013831810 bisecting cause commit starting from 3e5e6c9900c3d71895e8bdeacfb579462e98eba1 building syzkaller on f00eed24f2a1332b07fef1a353a439133978d97b ensuring issue is reproducible on original commit 3e5e6c9900c3d71895e8bdeacfb579462e98eba1 testing commit 3e5e6c9900c3d71895e8bdeacfb579462e98eba1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 84ad24e4c1b53e25d440f3583fd4cda5dccfc4fa62549bc62f725d66b8751a66 all runs: crashed: general protection fault in btrfs_search_slot representative crash: general protection fault in btrfs_search_slot, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 3e5e6c9900c3d71895e8bdeacfb579462e98eba1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d0c892cefdf13a0c7a5932f7a71cdfda88b04478b0d6e1a53238e112055a32bf all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4037 full=8185 leaves diff=2110 split chunks (needed=false): <2110> split chunk #0 of len 2110 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 3e5e6c9900c3d71895e8bdeacfb579462e98eba1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f9ba6ad6984c8e584e31da1b66989474ed3727719e3d4ce9c5ec71858e423a1b all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 3e5e6c9900c3d71895e8bdeacfb579462e98eba1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b96e306fb57c202a47eec8e3a671aa9eb39f9fd800061045e6af1dbb8ed4c53b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 3e5e6c9900c3d71895e8bdeacfb579462e98eba1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 01647b4df902865286b70c5f3e605835725357e341657a83cdf4b6394f3d7e67 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 3e5e6c9900c3d71895e8bdeacfb579462e98eba1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8d291d3916ef7b39c5bea0af38c51203fe46c046b1cbf474d7e8aab61dd6240a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 3e5e6c9900c3d71895e8bdeacfb579462e98eba1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7bab3db9cd02d62d047c939025fa6429056a8139dd8b80dfab9f0f3ecc1fa72a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] the chunk can be dropped minimized to 422 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 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 HANG 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: 97a58e486a02a90f07548a0716be5952390bda9f97f3e4253456e60765f70c29 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] 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: 7dbf38f30978bf7d691118e1875be1afa329abadafbf59265dadca5ec6a418da all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, 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: 59856e98f6a70638f64a48e71d0112b81ddcd0404de79cf63145c3fbf65363e2 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] 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: ba903f5bd7cf98ac880c782c0a70828f9adb13449e9df783cf092c60e5ea33f1 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9ee82b586f0b89e3f430be2a755d2852047dae518acf0b6782101e2cc78560da all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] testing release v6.3 testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0bc5b216bc440e707d3a02ad6a89c3f3bfcbb0c9b654cb8ae651d3801e4d203f all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] testing release v6.1 testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2589015ba6c9c7e8809695285b9517f0702411a0643935e084a8e54597a8d2a7 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] testing release v5.19 testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d4a0db22c9a719b506b36f517406d9de46729e06478678bf836d01dd8b59637d all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_search_slot, types: [UNKNOWN] testing release v5.16 testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 98491aec4614f53028ebab3617c1b6e3330a788e0a296eb94f26fbf5c4322110 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] testing release v5.13 testing commit 62fb9874f5da54fdb243003b386128037319b219 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 710dfd46ef89c55f0bafb43996ec32ad88d7bea6597fa446705b563444fdb200 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 670596f6de2270096cb989e937b6d866c27fee2f7cf4140fcae30361361b067f all runs: OK false negative chance: 0.000 # git bisect start 62fb9874f5da54fdb243003b386128037319b219 2c85ebc57b3e1817b6ce1a6b703928e113a90442 Bisecting: 23399 revisions left to test after this (roughly 15 steps) [d6560052c2f73db59834e9a3c0aba20579aa7059] Merge tag 'regulator-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator testing commit d6560052c2f73db59834e9a3c0aba20579aa7059 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8d47db34822fbbaeb1b18f54867278f0998a6435ea8cfa2c94b0b233b64f7f95 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] # git bisect bad d6560052c2f73db59834e9a3c0aba20579aa7059 Bisecting: 11720 revisions left to test after this (roughly 14 steps) [345b17acb1aa7a443741d9220f66b30d5ddd7c39] Merge tag 'for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml testing commit 345b17acb1aa7a443741d9220f66b30d5ddd7c39 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ada2bdea34ee7a0fb357770d39fd3d4fc617170ccd3b82dceb5cd0368b2dce22 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] # git bisect bad 345b17acb1aa7a443741d9220f66b30d5ddd7c39 Bisecting: 5727 revisions left to test after this (roughly 13 steps) [c367caf1a38b6f0a1aababafd88b00fefa625f9e] Merge tag 'sound-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit c367caf1a38b6f0a1aababafd88b00fefa625f9e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c5107c036ffc1d8eb9053accc91c5f705f309743694b5e5cc28abc45531176eb all runs: OK false negative chance: 0.000 # git bisect good c367caf1a38b6f0a1aababafd88b00fefa625f9e Bisecting: 2864 revisions left to test after this (roughly 12 steps) [ac7ac4618cf25e0d5cd8eba83d5f600084b65b9a] Merge tag 'for-5.11/block-2020-12-14' of git://git.kernel.dk/linux-block testing commit ac7ac4618cf25e0d5cd8eba83d5f600084b65b9a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f471a5ba800290811aad3abbddb445927c5f3d53ac42016c83a3a5238ac0dace all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] # git bisect bad ac7ac4618cf25e0d5cd8eba83d5f600084b65b9a Bisecting: 1420 revisions left to test after this (roughly 11 steps) [61f914256c56a39a96dc14eae9f394d35b934812] Merge tag 'platform-drivers-x86-v5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 testing commit 61f914256c56a39a96dc14eae9f394d35b934812 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a52fecbbebe399d46dff918efd7121ccb7ef33be336afa43a67edc9a2de9051b all runs: OK false negative chance: 0.000 # git bisect good 61f914256c56a39a96dc14eae9f394d35b934812 Bisecting: 734 revisions left to test after this (roughly 10 steps) [9867cb1fd510187d8f828540bdb48f78fceb70b3] Merge tag 'jfs-5.11' of git://github.com/kleikamp/linux-shaggy testing commit 9867cb1fd510187d8f828540bdb48f78fceb70b3 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dbbde739546d8fb5a14657ed67c4059bf9227413b9e738108faf9d3ce5731699 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] # git bisect bad 9867cb1fd510187d8f828540bdb48f78fceb70b3 Bisecting: 402 revisions left to test after this (roughly 9 steps) [aab7ce2b099bd9df82573cd3170acf6518fdebeb] Merge tag 'acpi-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm testing commit aab7ce2b099bd9df82573cd3170acf6518fdebeb gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f536ae028432d1f12bcd7ca906d18e9d308a1c70bdb4fbd2e2354d8d8c442160 all runs: OK false negative chance: 0.000 # git bisect good aab7ce2b099bd9df82573cd3170acf6518fdebeb Bisecting: 204 revisions left to test after this (roughly 8 steps) [b42fe98c92698d2a10094997e5f4d2dd968fd44f] btrfs: scrub: allow scrub to work with subpage sectorsize testing commit b42fe98c92698d2a10094997e5f4d2dd968fd44f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5be9c7813d4fb97d7b6970cea9e9291dcd4638550ee803d4a5976be87e550ee5 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] # git bisect bad b42fe98c92698d2a10094997e5f4d2dd968fd44f Bisecting: 98 revisions left to test after this (roughly 7 steps) [5893dfb98f257805b26e499a2d5d9190f2db7484] btrfs: refactor btrfs_drop_extents() to make it easier to extend testing commit 5893dfb98f257805b26e499a2d5d9190f2db7484 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 5893dfb98f257805b26e499a2d5d9190f2db7484: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] fs/btrfs/inode.c:2333:9: error: too many arguments to function 'set_extent_bit' # git bisect skip 5893dfb98f257805b26e499a2d5d9190f2db7484 Bisecting: 98 revisions left to test after this (roughly 7 steps) [fe596ca3d3b5b005d940a20ee30a6f1c13dd2d19] btrfs: use btrfs_tree_read_lock in btrfs_search_slot testing commit fe596ca3d3b5b005d940a20ee30a6f1c13dd2d19 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building fe596ca3d3b5b005d940a20ee30a6f1c13dd2d19: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations] fs/btrfs/inode.c:2341:9: error: too many arguments to function 'set_extent_bit' # git bisect skip fe596ca3d3b5b005d940a20ee30a6f1c13dd2d19 Bisecting: 98 revisions left to test after this (roughly 7 steps) [3b5418fba372c28511ebe9f83b5e26e8ab34b9f9] btrfs: check-integrity: use proper helper to access btrfs_header testing commit 3b5418fba372c28511ebe9f83b5e26e8ab34b9f9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2e3c05b0a1e446da298fe22ff47a0946d155451d0c0c8d6f3cca1acbd8f6c1f5 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] # git bisect bad 3b5418fba372c28511ebe9f83b5e26e8ab34b9f9 Bisecting: 19 revisions left to test after this (roughly 4 steps) [9037d3cbcbe1ed9c409efe4d6d3efd893d7ff05e] btrfs: introduce mount option rescue=all testing commit 9037d3cbcbe1ed9c409efe4d6d3efd893d7ff05e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1a39a5dd73b2feeeda99e6cc491a892d9d19a0c6b66418f891db9f5be3bfb859 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] # git bisect bad 9037d3cbcbe1ed9c409efe4d6d3efd893d7ff05e Bisecting: 8 revisions left to test after this (roughly 3 steps) [a57ad681f12e1ec80365fc4693e12e979159b9d0] btrfs: assert we are holding the reada_lock when releasing a readahead zone testing commit a57ad681f12e1ec80365fc4693e12e979159b9d0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3ae1437f707c626af042f4af8ae0810d69ced7f8e2ab2bff6c526491c23e327a all runs: OK false negative chance: 0.000 # git bisect good a57ad681f12e1ec80365fc4693e12e979159b9d0 Bisecting: 3 revisions left to test after this (roughly 2 steps) [ab0b4a3ebf145f54dc23b66a411f4bbbc59b0d96] btrfs: add a helper to print out rescue= options testing commit ab0b4a3ebf145f54dc23b66a411f4bbbc59b0d96 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d780c9cfcdd0cbfddd230bf245c5bb93b4b11d5f790f1e49ad1a406de68679d7 all runs: OK false negative chance: 0.000 # git bisect good ab0b4a3ebf145f54dc23b66a411f4bbbc59b0d96 Bisecting: 1 revision left to test after this (roughly 1 step) [42437a6386ffeaaf200731e73d723ea491f3fe7d] btrfs: introduce mount option rescue=ignorebadroots testing commit 42437a6386ffeaaf200731e73d723ea491f3fe7d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ced067f4fa332c321a4496311c6a52a4f8cae2741d8c1c7fbba0df18234f8f57 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node representative crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node, types: [UNKNOWN] # git bisect bad 42437a6386ffeaaf200731e73d723ea491f3fe7d Bisecting: 0 revisions left to test after this (roughly 0 steps) [68319c18cb21ab472ce2c4ed572257a42455ac01] btrfs: show rescue=usebackuproot in /proc/mounts testing commit 68319c18cb21ab472ce2c4ed572257a42455ac01 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fba07edd9c012d45ec2168e0f50e60812b7616e3298d2cde819d949342e9c17d all runs: OK false negative chance: 0.000 # git bisect good 68319c18cb21ab472ce2c4ed572257a42455ac01 42437a6386ffeaaf200731e73d723ea491f3fe7d is the first bad commit commit 42437a6386ffeaaf200731e73d723ea491f3fe7d Author: Josef Bacik Date: Fri Oct 16 11:29:18 2020 -0400 btrfs: introduce mount option rescue=ignorebadroots In the face of extent root corruption, or any other core fs wide root corruption we will fail to mount the file system. This makes recovery kind of a pain, because you need to fall back to userspace tools to scrape off data. Instead provide a mechanism to gracefully handle bad roots, so we can at least mount read-only and possibly recover data from the file system. Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba fs/btrfs/block-group.c | 48 +++++++++++++++++++++++++++++++++++++ fs/btrfs/block-rsv.c | 8 +++++++ fs/btrfs/compression.c | 2 +- fs/btrfs/ctree.h | 1 + fs/btrfs/disk-io.c | 65 +++++++++++++++++++++++++++++++------------------- fs/btrfs/file-item.c | 2 +- fs/btrfs/inode.c | 6 ++++- fs/btrfs/super.c | 12 +++++++++- fs/btrfs/sysfs.c | 1 + fs/btrfs/volumes.c | 13 ++++++++++ 10 files changed, 130 insertions(+), 28 deletions(-) accumulated error probability: 0.00 culprit signature: ced067f4fa332c321a4496311c6a52a4f8cae2741d8c1c7fbba0df18234f8f57 parent signature: fba07edd9c012d45ec2168e0f50e60812b7616e3298d2cde819d949342e9c17d revisions tested: 32, total time: 8h43m21.989252173s (build: 3h57m10.39087007s, test: 4h35m10.560679794s) first bad commit: 42437a6386ffeaaf200731e73d723ea491f3fe7d btrfs: introduce mount option rescue=ignorebadroots recipients (to): ["dsterba@suse.com" "josef@toxicpanda.com"] recipients (cc): [] crash: BUG: unable to handle kernel NULL pointer dereference in btrfs_root_node BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 80000001079d5067 P4D 80000001079d5067 PUD 109ea2067 PMD 0 Oops: 0000 [#1] SMP PTI CPU: 0 PID: 3628 Comm: syz.2.15 Not tainted 5.10.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:btrfs_root_node+0x2a/0x90 fs/btrfs/ctree.c:129 Code: 41 54 55 48 c7 c5 3e d6 5b 81 53 48 89 fb 31 d2 55 45 31 c9 45 31 c0 31 f6 b9 02 00 00 00 48 c7 c7 40 c5 35 83 e8 96 7c bb ff <4c> 8b 23 5a 41 8b 44 24 60 85 c0 74 32 49 8d 54 24 60 8d 48 01 f0 RSP: 0018:ffffc90000ca7d38 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000ef95c707 RDX: 00000000e74b46f9 RSI: 00000000b674fed7 RDI: 000000003920c830 RBP: ffffffff815bd63e R08: 0000000000020026 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8881079f4540 R14: ffffc90000ca7e80 R15: ffff88810af68000 FS: 00007f08905c56c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001107d4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __btrfs_read_lock_root_node+0x25/0x50 fs/btrfs/locking.c:573 btrfs_search_slot_get_root fs/btrfs/ctree.c:2619 [inline] btrfs_search_slot+0x49d/0x9b0 fs/btrfs/ctree.c:2718 extent_from_logical+0x6a/0x1b0 fs/btrfs/backref.c:1758 iterate_inodes_from_logical+0x5b/0xd0 fs/btrfs/backref.c:2031 btrfs_ioctl_logical_to_ino+0xaf/0x190 fs/btrfs/ioctl.c:3898 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x7e/0xb0 fs/ioctl.c:739 do_syscall_64+0x34/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f0891345719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f08905c5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f08914fcf80 RCX: 00007f0891345719 RDX: 0000000020000080 RSI: 00000000c0389424 RDI: 0000000000000004 RBP: 00007f08913b832e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f08914fcf80 R15: 00007ffcebbbb708 Modules linked in: CR2: 0000000000000000 ---[ end trace 2ad93453aba18f40 ]--- RIP: 0010:btrfs_root_node+0x2a/0x90 fs/btrfs/ctree.c:129 Code: 41 54 55 48 c7 c5 3e d6 5b 81 53 48 89 fb 31 d2 55 45 31 c9 45 31 c0 31 f6 b9 02 00 00 00 48 c7 c7 40 c5 35 83 e8 96 7c bb ff <4c> 8b 23 5a 41 8b 44 24 60 85 c0 74 32 49 8d 54 24 60 8d 48 01 f0 RSP: 0018:ffffc90000ca7d38 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000ef95c707 RDX: 00000000e74b46f9 RSI: 00000000b674fed7 RDI: 000000003920c830 RBP: ffffffff815bd63e R08: 0000000000020026 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8881079f4540 R14: ffffc90000ca7e80 R15: ffff88810af68000 FS: 00007f08905c56c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001107d4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 41 54 push %r12 2: 55 push %rbp 3: 48 c7 c5 3e d6 5b 81 mov $0xffffffff815bd63e,%rbp a: 53 push %rbx b: 48 89 fb mov %rdi,%rbx e: 31 d2 xor %edx,%edx 10: 55 push %rbp 11: 45 31 c9 xor %r9d,%r9d 14: 45 31 c0 xor %r8d,%r8d 17: 31 f6 xor %esi,%esi 19: b9 02 00 00 00 mov $0x2,%ecx 1e: 48 c7 c7 40 c5 35 83 mov $0xffffffff8335c540,%rdi 25: e8 96 7c bb ff call 0xffbb7cc0 * 2a: 4c 8b 23 mov (%rbx),%r12 <-- trapping instruction 2d: 5a pop %rdx 2e: 41 8b 44 24 60 mov 0x60(%r12),%eax 33: 85 c0 test %eax,%eax 35: 74 32 je 0x69 37: 49 8d 54 24 60 lea 0x60(%r12),%rdx 3c: 8d 48 01 lea 0x1(%rax),%ecx 3f: f0 lock