ci2 starts bisection 2025-09-05 09:26:31.515280258 +0000 UTC m=+113106.504254094 bisecting cause commit starting from d69eb204c255c35abd9e8cb621484e8074c75eaa building syzkaller on d291dd2d58a1885c00a60561048b6ceb1bf1206a ensuring issue is reproducible on original commit d69eb204c255c35abd9e8cb621484e8074c75eaa testing commit d69eb204c255c35abd9e8cb621484e8074c75eaa gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: ded146a7ffe8928c63023971e749656d597a43f14eba55af3d563966a9808f25 run #0: crashed: kernel BUG in bch2_btree_path_level_init run #1: crashed: kernel BUG in bch2_btree_path_level_init run #2: crashed: kernel BUG in bch2_btree_path_level_init run #3: crashed: kernel BUG in bch2_btree_path_level_init run #4: crashed: kernel BUG in bch2_btree_path_level_init run #5: crashed: kernel BUG in bch2_btree_path_level_init run #6: crashed: kernel BUG in bch2_btree_path_level_init run #7: crashed: kernel BUG in bch2_btree_path_level_init run #8: crashed: kernel BUG in bch2_btree_path_level_init run #9: crashed: kernel BUG in bch2_btree_path_level_init run #10: crashed: kernel BUG in bch2_btree_path_level_init run #11: crashed: kernel BUG in bch2_btree_path_level_init run #12: crashed: kernel BUG in bch2_btree_path_level_init run #13: crashed: kernel BUG in bch2_btree_path_level_init run #14: crashed: kernel BUG in bch2_btree_path_level_init run #15: crashed: kernel BUG in bch2_btree_path_level_init run #16: crashed: kernel BUG in corrupted run #17: crashed: kernel BUG in bch2_btree_path_level_init run #18: crashed: kernel BUG in bch2_btree_path_level_init run #19: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] check whether we can drop unnecessary instrumentation disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed testing commit d69eb204c255c35abd9e8cb621484e8074c75eaa gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 534d97b0398734caef5480ef937735c4b581149b74eb585442220981b0488b9e all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] the bug reproduces without the instrumentation disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed kconfig minimization: base=4092 full=8349 leaves diff=2173 split chunks (needed=false): <2173> split chunk #0 of len 2173 into 5 parts testing without sub-chunk 1/5 disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed testing commit d69eb204c255c35abd9e8cb621484e8074c75eaa gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 6724c985602ec44e72395c2c5b0246083485256367b55bd60c2d19d3ec2c6d84 run #0: ignore: lost connection to test machine run #1: ignore: lost connection to test machine run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed testing commit d69eb204c255c35abd9e8cb621484e8074c75eaa gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: c03c67a38530557f7e1c3ac86833c6d781807d3a53ab2c4a6ec7a2c17a9cdcf4 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed testing commit d69eb204c255c35abd9e8cb621484e8074c75eaa gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 1a9c09e7689be414f61d91ad68d4badc4852466d04ebce1d116aa7535779aa8f all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed testing commit d69eb204c255c35abd9e8cb621484e8074c75eaa gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 0d680ddf2a690a7bd9b83c0a18abaef559322d512aafb2b889f890b54b6e12e0 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed testing commit d69eb204c255c35abd9e8cb621484e8074c75eaa gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: c942aa402650806be5d06cf7f43e51f1af442e2fc63ba9d7ee8776fdb92dc429 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] the chunk can be dropped minimized to 435 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_HAS_CPU_ATTACK_VECTORS ARCH_HAS_USER_SHADOW_STACK ARCH_SUPPORTS_HUGETLBFS 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_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_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY 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_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES 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 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_8254 COMEDI_8255 COMEDI_8255_PCI COMEDI_8255_SA COMEDI_ADL_PCI9118 COMEDI_ADQ12B COMEDI_AIO_AIO12_8 COMEDI_AIO_IIRO_16 COMEDI_AMPLC_DIO200 COMEDI_AMPLC_DIO200_ISA COMEDI_AMPLC_PC236 COMEDI_AMPLC_PC236_ISA COMEDI_AMPLC_PC263_ISA COMEDI_BOND COMEDI_C6XDIGIO COMEDI_DAC02 COMEDI_DAS08 COMEDI_DAS08_ISA COMEDI_DAS16M1 COMEDI_DAS1800 COMEDI_DAS6402 COMEDI_DAS800 COMEDI_DMM32AT COMEDI_DT2801 COMEDI_DT2811 COMEDI_DT2814 COMEDI_DT2815 COMEDI_DT2817 COMEDI_DT282X COMEDI_DT9812 COMEDI_FL512 COMEDI_ISADMA COMEDI_ISA_DRIVERS COMEDI_KCOMEDILIB COMEDI_MISC_DRIVERS COMEDI_MPC624 COMEDI_MULTIQ3 COMEDI_NI_ATMIO16D COMEDI_NI_AT_A2150 COMEDI_NI_AT_AO COMEDI_NI_DAQ_700_CS COMEDI_NI_LABPC COMEDI_NI_LABPC_CS COMEDI_NI_LABPC_ISA COMEDI_NI_LABPC_ISADMA COMEDI_NI_LABPC_PCI COMEDI_NI_USB6501 COMEDI_PARPORT COMEDI_PCI_DRIVERS COMEDI_PCL711 COMEDI_PCL724 COMEDI_PCL726 COMEDI_PCL730 COMEDI_PCL812 COMEDI_PCL816 COMEDI_PCL818 COMEDI_PCM3724 COMEDI_PCMAD COMEDI_PCMCIA_DRIVERS COMEDI_PCMDA12 COMEDI_PCMMIO COMEDI_PCMUIO COMEDI_RTI800 COMEDI_RTI802 COMEDI_S526 COMEDI_TEST COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC64 CRC64_ARCH CRC8 CRC_ITU_T CRC_T10DIF CRC_T10DIF_ARCH 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_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32C CRYPTO_CRYPTD CRYPTO_CTS 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_HKDF CRYPTO_KDF800108_CTR CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_KRB5 CRYPTO_KRB5ENC CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_CURVE25519_INTERNAL CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LIB_SHA1_ARCH CRYPTO_LIB_SHA256_ARCH CRYPTO_LIB_SHA512 CRYPTO_LIB_SHA512_ARCH CRYPTO_LIB_SM3 CRYPTO_LRW CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT 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_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC 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_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DCA DCB DEBUG_VFS DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DMA_CMA FSCACHE FUSE_FS GPIOLIB HAMRADIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISA_BUS LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MMC MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED PCCARD PCMCIA RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WLAN WLAN_VENDOR_ATH ZONE_DEVICE] disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed picked [v6.16 v6.15 v6.14 v6.12 v6.10 v6.8 v6.6 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 39 release tags testing release v6.16 testing commit 038d61fd642278bab63ee8ef722c50d10ab01e8f gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 9f86392f9ccfe4ebed96885e08e83ae989c4f37364a13f3fb0cb765fc7edc6e0 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] testing release v6.15 testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 69ee225fa8830c1310b81b74a523af9d1915347cf75acd2e68072feb9bbaed81 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] testing release v6.14 testing commit 38fec10eb60d687e30c8c6b5420d86e8149f7557 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: b7fc4d31f9b4b86df9300d314ee261be29a3dcff52391d11721ef68de59aa1c3 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: b0e490b96585a85330e812a904738bd728257800528a0f309bc98b0fb8613e5d all runs: OK false negative chance: 0.000 # git bisect start 38fec10eb60d687e30c8c6b5420d86e8149f7557 adc218676eef25575469234709c2d87185ca223a Bisecting: 13139 revisions left to test after this (roughly 14 steps) [af215c980c1fbf1ca01675b128b0dd194745b880] Merge tag 'drm-fixes-2024-12-20' of https://gitlab.freedesktop.org/drm/kernel testing commit af215c980c1fbf1ca01675b128b0dd194745b880 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: d3065db57e78477b6c24d898089b2bb1cab924b1a3a612fb96db0334080f4e5f all runs: OK false negative chance: 0.000 # git bisect good af215c980c1fbf1ca01675b128b0dd194745b880 Bisecting: 6500 revisions left to test after this (roughly 13 steps) [c9c0543b52d8cfe3a3b15d1e39ab9dbc91be6df4] Merge tag 'platform-drivers-x86-v6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 testing commit c9c0543b52d8cfe3a3b15d1e39ab9dbc91be6df4 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 6cc65a869ad55beb9eb46dda55b92a93fe4d530a334d499f2db6dbb587849aab all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] # git bisect bad c9c0543b52d8cfe3a3b15d1e39ab9dbc91be6df4 Bisecting: 3245 revisions left to test after this (roughly 12 steps) [96c84703f1cf6ea43617f9565166681cd71df104] Merge tag 'drm-next-2025-01-17' of https://gitlab.freedesktop.org/drm/kernel testing commit 96c84703f1cf6ea43617f9565166681cd71df104 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 09a1f7529272d95e44dea5a17d29b4e2354b862b78242619be12f9aad54d1e4f all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] # git bisect bad 96c84703f1cf6ea43617f9565166681cd71df104 Bisecting: 1652 revisions left to test after this (roughly 11 steps) [1cbfb828e05171ca2dd77b5988d068e6872480fe] Merge tag 'for-6.14/block-20250118' of git://git.kernel.dk/linux testing commit 1cbfb828e05171ca2dd77b5988d068e6872480fe gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 579deac22ce412664fb077ef8aff405f67c70e71223e5cbedb952be25df63774 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] # git bisect bad 1cbfb828e05171ca2dd77b5988d068e6872480fe Bisecting: 869 revisions left to test after this (roughly 10 steps) [097a7eef61bd0366a822418b2ba074942eb00744] btrfs: uncollapse transaction aborts during renames testing commit 097a7eef61bd0366a822418b2ba074942eb00744 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 38b69ce217c92b819f93cc2569e5cf47d981510ba07a268a59b2b045f34c5264 all runs: OK false negative chance: 0.000 # git bisect good 097a7eef61bd0366a822418b2ba074942eb00744 Bisecting: 398 revisions left to test after this (roughly 9 steps) [0eb4aaa230d725fa9b1cd758c0f17abca5597af6] Merge tag 'for-6.14-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux testing commit 0eb4aaa230d725fa9b1cd758c0f17abca5597af6 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 63cd079cd3487f0b73cf5ebbd8c8049646eac6149dd0f5f495ab65bf28ba759f all runs: OK false negative chance: 0.000 # git bisect good 0eb4aaa230d725fa9b1cd758c0f17abca5597af6 Bisecting: 199 revisions left to test after this (roughly 8 steps) [68eb4fdd8c1c729aa7fbb1eb8d7af6c39917e117] bcachefs: tidy up __bch2_btree_iter_peek() testing commit 68eb4fdd8c1c729aa7fbb1eb8d7af6c39917e117 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: e6904c890d294a4622500b3be88aab9c72a777114d0a5fd48776289b42101495 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] # git bisect bad 68eb4fdd8c1c729aa7fbb1eb8d7af6c39917e117 Bisecting: 99 revisions left to test after this (roughly 7 steps) [06d7a56fe0bfc4f8c17bff6ca12d8bdd33e9f7e8] bcachefs: journal keys: sort keys for interior nodes first testing commit 06d7a56fe0bfc4f8c17bff6ca12d8bdd33e9f7e8 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 66a25e324be09d15130e4418eaba5012abe3f223b577fd3bdf964a65774942c7 all runs: OK false negative chance: 0.000 # git bisect good 06d7a56fe0bfc4f8c17bff6ca12d8bdd33e9f7e8 Bisecting: 49 revisions left to test after this (roughly 6 steps) [2f8d5edf556a7499a188c8b38a650bed5aebcdbf] bcachefs: Add missing parameter description to bch2_bucket_alloc_trans() testing commit 2f8d5edf556a7499a188c8b38a650bed5aebcdbf gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: b45c76e82f8c8a8e5163b68cdb006b88fb8b7c0b801d39b39f25ec3c7c4d9196 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] # git bisect bad 2f8d5edf556a7499a188c8b38a650bed5aebcdbf Bisecting: 24 revisions left to test after this (roughly 5 steps) [14152654805256d760315ec24e414363bfa19a06] bcachefs: Bad btree roots are now autofix testing commit 14152654805256d760315ec24e414363bfa19a06 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 830da962ef24d709bb4be9144405868097a6543ddd4dca7634e26a08463b6b82 all runs: OK false negative chance: 0.000 # git bisect good 14152654805256d760315ec24e414363bfa19a06 Bisecting: 12 revisions left to test after this (roughly 4 steps) [f9e0a9be70c8f790fe721ee2796995b06a314b7f] bcachefs: Issue a transaction restart after commit in repair testing commit f9e0a9be70c8f790fe721ee2796995b06a314b7f gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: cda499cdac4457fa3f89910e9b0a6bf88b5099a4a06527adba258f80fc457603 all runs: OK false negative chance: 0.000 # git bisect good f9e0a9be70c8f790fe721ee2796995b06a314b7f Bisecting: 6 revisions left to test after this (roughly 3 steps) [8b105909182fed845bdf1eb4313896c6a5d04a10] bcachefs: do_fsck_ask_yn() testing commit 8b105909182fed845bdf1eb4313896c6a5d04a10 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 76e7bc30acf460e03b58eb2bc44572b8189d37a13faf32fc82bcf299a5fcd82c all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] # git bisect bad 8b105909182fed845bdf1eb4313896c6a5d04a10 Bisecting: 2 revisions left to test after this (roughly 2 steps) [914381013bc759370b5b28b679bfbe5df6009f31] bcachefs: add missing printbuf_reset() testing commit 914381013bc759370b5b28b679bfbe5df6009f31 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 0e13ca7733556da92045cb56c74a08377257094a993a4d64f0c195cb6bfa7fca all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] # git bisect bad 914381013bc759370b5b28b679bfbe5df6009f31 Bisecting: 0 revisions left to test after this (roughly 1 step) [0184dfa3b82111f147455bdbd82801843d306eb1] bcachefs: Fix journal_iter list corruption testing commit 0184dfa3b82111f147455bdbd82801843d306eb1 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: e48fe3b1e17ad0b257dfec1fd3905123f8379d908d86a09ad697eec6fcac18ae all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] # git bisect bad 0184dfa3b82111f147455bdbd82801843d306eb1 Bisecting: 0 revisions left to test after this (roughly 0 steps) [f11ca2ab18e369a662c2f60d53b8bea46c54e312] bcachefs: Guard against backpointers to unknown btrees testing commit f11ca2ab18e369a662c2f60d53b8bea46c54e312 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 11b01080c913fdb0f94e1b76a8c8acdcc705b63f8d36896060d9d80511e903f9 all runs: crashed: kernel BUG in bch2_btree_path_level_init representative crash: kernel BUG in bch2_btree_path_level_init, types: [BUG] # git bisect bad f11ca2ab18e369a662c2f60d53b8bea46c54e312 f11ca2ab18e369a662c2f60d53b8bea46c54e312 is the first bad commit commit f11ca2ab18e369a662c2f60d53b8bea46c54e312 Author: Kent Overstreet Date: Wed Nov 27 22:29:54 2024 -0500 bcachefs: Guard against backpointers to unknown btrees Reported-by: syzbot+997f0573004dcb964555@syzkaller.appspotmail.com Signed-off-by: Kent Overstreet fs/bcachefs/backpointers.c | 7 +++++-- fs/bcachefs/sb-errors_format.h | 2 +- 2 files changed, 6 insertions(+), 3 deletions(-) accumulated error probability: 0.00 culprit signature: 11b01080c913fdb0f94e1b76a8c8acdcc705b63f8d36896060d9d80511e903f9 parent signature: cda499cdac4457fa3f89910e9b0a6bf88b5099a4a06527adba258f80fc457603 revisions tested: 26, total time: 7h11m28.108433003s (build: 2h19m10.788059125s, test: 4h23m12.699727578s) first bad commit: f11ca2ab18e369a662c2f60d53b8bea46c54e312 bcachefs: Guard against backpointers to unknown btrees recipients (to): ["kent.overstreet@linux.dev"] recipients (cc): [] crash: kernel BUG in bch2_btree_path_level_init bcachefs (loop2): accounting_read... done bcachefs (loop2): alloc_read... done bcachefs (loop2): stripes_read... done bcachefs (loop2): snapshots_read... done ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:633! Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 1 UID: 0 PID: 3333 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:bch2_btree_path_level_init+0x113/0x120 fs/bcachefs/btree_iter.c:633 Code: 78 02 00 75 17 4c 89 f7 48 89 de e8 77 82 fe ff 41 0f b7 47 08 66 41 3b 47 0a 75 d0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 90 <0f> 0b 90 0f 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900038970b0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88810d3f82f0 RCX: 0000000000000000 RDX: ffff8881063de400 RSI: 0000000000000000 RDI: ffff888107370000 RBP: ffff88810ff80000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000002 R13: ffff88810d3f8000 R14: 0000000000000001 R15: ffff88810d3f8328 FS: 00007f22c9d4e6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcd449ac7c CR3: 000000010679e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btree_path_down fs/bcachefs/btree_iter.c:979 [inline] bch2_btree_path_traverse_one+0x8c2/0xc20 fs/bcachefs/btree_iter.c:1189 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:249 [inline] bch2_btree_iter_peek_slot+0x1c7/0x760 fs/bcachefs/btree_iter.c:2755 btree_key_cache_fill+0x11d/0xcf0 fs/bcachefs/btree_key_cache.c:299 bch2_btree_path_traverse_cached+0x25d/0x340 fs/bcachefs/btree_key_cache.c:361 bch2_btree_path_traverse_one+0x8f4/0xc20 fs/bcachefs/btree_iter.c:1166 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:249 [inline] bch2_btree_iter_peek_slot+0x1c7/0x760 fs/bcachefs/btree_iter.c:2755 __bch2_bkey_get_iter fs/bcachefs/btree_iter.h:578 [inline] bch2_bkey_get_iter fs/bcachefs/btree_iter.h:592 [inline] bch2_trans_start_alloc_update_noupdate+0xde/0x140 fs/bcachefs/alloc_background.c:456 __bch2_trans_mark_metadata_bucket fs/bcachefs/buckets.c:963 [inline] bch2_trans_mark_metadata_bucket+0x163/0x770 fs/bcachefs/buckets.c:1054 bch2_trans_mark_metadata_sectors fs/bcachefs/buckets.c:1071 [inline] __bch2_trans_mark_dev_sb fs/bcachefs/buckets.c:1111 [inline] bch2_trans_mark_dev_sb+0x1e1/0x320 fs/bcachefs/buckets.c:1139 bch2_trans_mark_dev_sbs_flags+0x136/0x220 fs/bcachefs/buckets.c:1149 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:222 [inline] bch2_run_recovery_passes+0x143/0x290 fs/bcachefs/recovery_passes.c:285 bch2_fs_recovery+0x8bf/0x11e0 fs/bcachefs/recovery.c:917 bch2_fs_start+0x1c5/0x290 fs/bcachefs/super.c:1037 bch2_fs_get_tree+0x2bc/0x6b0 fs/bcachefs/fs.c:2201 vfs_get_tree+0x26/0xf0 fs/super.c:1814 do_new_mount+0x140/0x390 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x147/0x1c0 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe2/0x210 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f22ca6e038a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f22c9d4de68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f22c9d4def0 RCX: 00007f22ca6e038a RDX: 0000200000000040 RSI: 0000200000004940 RDI: 00007f22c9d4deb0 RBP: 0000200000000040 R08: 00007f22c9d4def0 R09: 0000000000004000 R10: 0000000000004000 R11: 0000000000000246 R12: 0000200000004940 R13: 00007f22c9d4deb0 R14: 00000000000049ae R15: 0000200000000180 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_btree_path_level_init+0x113/0x120 fs/bcachefs/btree_iter.c:633 Code: 78 02 00 75 17 4c 89 f7 48 89 de e8 77 82 fe ff 41 0f b7 47 08 66 41 3b 47 0a 75 d0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 90 <0f> 0b 90 0f 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900038970b0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88810d3f82f0 RCX: 0000000000000000 RDX: ffff8881063de400 RSI: 0000000000000000 RDI: ffff888107370000 RBP: ffff88810ff80000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000002 R13: ffff88810d3f8000 R14: 0000000000000001 R15: ffff88810d3f8328 FS: 00007f22c9d4e6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcd449ac7c CR3: 000000010679e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400