ci2 starts bisection 2025-05-29 15:30:34.619137004 +0000 UTC m=+85024.747013907 bisecting cause commit starting from 90b83efa6701656e02c86e7df2cb1765ea602d07 building syzkaller on 3d2f584ddab119da50e8a8d26765aa98d3b33c02 ensuring issue is reproducible on original commit 90b83efa6701656e02c86e7df2cb1765ea602d07 testing commit 90b83efa6701656e02c86e7df2cb1765ea602d07 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: b8f44b6b2af8a0b587b1e87d10e0cc52304170551ff7c78c043e88c2768dac44 all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 90b83efa6701656e02c86e7df2cb1765ea602d07 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 9f7689528fa02e81309184f663f3422adc93849a1b11b8f3004d828eb0e9d016 all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=4084 full=8344 leaves diff=2131 split chunks (needed=false): <2131> split chunk #0 of len 2131 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 90b83efa6701656e02c86e7df2cb1765ea602d07 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: ce970ec87a24e5c4eb5972bd84e0e050e6b062d20115ffe9ca0b069b1f7ef4cc all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 90b83efa6701656e02c86e7df2cb1765ea602d07 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 99f5f8a021f34322f460e5add7f10c36be4cec8385b7c12cbe79ee11306af718 all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 90b83efa6701656e02c86e7df2cb1765ea602d07 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 7ea622084d7ff583e830b11ab86cb7f39d51e51d70426b0ff4f85111e06beeaf all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 90b83efa6701656e02c86e7df2cb1765ea602d07 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 9cab7df33fe34f90e7068bc97e3c656ab34574c0bce28ba5bc83b3c47c7d6feb all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 90b83efa6701656e02c86e7df2cb1765ea602d07 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 89299195443824cbc0e24b442a9d6ced0487de9748f65adec94cc3bc90ff3b27 all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] the chunk can be dropped minimized to 427 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_MRRM 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_HAS_USER_SHADOW_STACK ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP 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 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_ARCH_HAVE_LIB_SHA256 CRYPTO_ARCH_HAVE_LIB_SHA256_SIMD 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_SHA256_GENERIC 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_SHA1_SSSE3 CRYPTO_SHA256_X86_64 CRYPTO_SHA512_SSSE3 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 DAX DCA DCB DEBUG_VFS 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_CLIENT DRM_CLIENT_DEFAULT_FBDEV DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_CLIENT_SETUP DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_DSC_HELPER DRM_DISPLAY_HELPER DRM_FBDEV_EMULATION 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 WLAN WLAN_VENDOR_ATH ZONE_DEVICE] disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed picked [v6.15 v6.14 v6.13 v6.11 v6.9 v6.7 v6.5 v6.3 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 38 release tags testing release v6.15 testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: def71af38b71b78fd5650fbfd31902dce67b06527afa340ec7108926bdafacc9 all runs: OK false negative chance: 0.000 # git bisect start 90b83efa6701656e02c86e7df2cb1765ea602d07 0ff41df1cb268fc69e703a08a57ee14ae967d0ca Bisecting: 3813 revisions left to test after this (roughly 12 steps) [a61e26038143727d9b0f1bc01b0370f77f2ad7e4] Merge tag 'media/v6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media testing commit a61e26038143727d9b0f1bc01b0370f77f2ad7e4 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 4fa90dfb693423d5910bb9bfa3c7bbb533895e6abd01f1829929daea4df1650f all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] # git bisect bad a61e26038143727d9b0f1bc01b0370f77f2ad7e4 Bisecting: 1981 revisions left to test after this (roughly 11 steps) [0c1494015fea0935fbf6cd9d99c008fcbe1e4165] Merge tag 'core-entry-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 0c1494015fea0935fbf6cd9d99c008fcbe1e4165 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: aac04b9c6001c9697c371a3aeac62002f32d4cf2a66a21440a1c8948d9167fcb all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] # git bisect bad 0c1494015fea0935fbf6cd9d99c008fcbe1e4165 Bisecting: 1061 revisions left to test after this (roughly 10 steps) [15d90a5e5524532b7456a24f4626cf28c1629c4c] Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux testing commit 15d90a5e5524532b7456a24f4626cf28c1629c4c gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 0bfd38956471b9ed375cc6471acb972643b6264adf8e300012aa7c4fa7818e65 all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] # git bisect bad 15d90a5e5524532b7456a24f4626cf28c1629c4c Bisecting: 507 revisions left to test after this (roughly 9 steps) [49fffac983ac52aea0ab94914be3f56bcf92d5dc] Merge tag 'for-6.16/io_uring-20250523' of git://git.kernel.dk/linux testing commit 49fffac983ac52aea0ab94914be3f56bcf92d5dc gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: db24430f48972b9f17e85d2246d232f4f814b6bc9ae1a3e90ae28958b5ef5f28 all runs: OK false negative chance: 0.000 # git bisect good 49fffac983ac52aea0ab94914be3f56bcf92d5dc Bisecting: 276 revisions left to test after this (roughly 8 steps) [8fdabcd9c01d9ac585d8109a921e0734a69479fb] Merge tag 'gfs2-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 testing commit 8fdabcd9c01d9ac585d8109a921e0734a69479fb gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: afe5c6ae6739aa14a76720f51f4e529784abd86346ff34c2a4a9ecca1121d709 all runs: OK false negative chance: 0.000 # git bisect good 8fdabcd9c01d9ac585d8109a921e0734a69479fb Bisecting: 138 revisions left to test after this (roughly 7 steps) [3b7b0c3996b570f9c305c6f3df475a719920d65c] bcachefs: print label correctly in sb_member_to_text() testing commit 3b7b0c3996b570f9c305c6f3df475a719920d65c gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 800fedcfc91a9c36da558a8c0267cb03da7e0cd0eca6b36eb0678ffab9530f31 all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] # git bisect bad 3b7b0c3996b570f9c305c6f3df475a719920d65c Bisecting: 68 revisions left to test after this (roughly 6 steps) [09279bba72f809eeb1f02d39a462e8e1d06fa32a] bcachefs: Kill dead code testing commit 09279bba72f809eeb1f02d39a462e8e1d06fa32a gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: c4cdf1e48a1381924139e7e0e79efc387910cca90123b3acf19791325a0e374d all runs: OK false negative chance: 0.000 # git bisect good 09279bba72f809eeb1f02d39a462e8e1d06fa32a Bisecting: 34 revisions left to test after this (roughly 5 steps) [8a6b883e78bfed6909e21c2afb6138b603d1ee6c] bcachefs: Fix setting ca->name in device add testing commit 8a6b883e78bfed6909e21c2afb6138b603d1ee6c gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 95ec0b8abea66221cc79f257894c1086c5323f27ab579dc721558219dae21d83 all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] # git bisect bad 8a6b883e78bfed6909e21c2afb6138b603d1ee6c Bisecting: 16 revisions left to test after this (roughly 4 steps) [156d9e8341e8aad55b0e79b2dc54003cb14e5077] bcachefs: Emit a single log message on data read error testing commit 156d9e8341e8aad55b0e79b2dc54003cb14e5077 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: aa8c87c2a3329ef47dae6144a1790bc27d98f76e7a166aa3a5dda827c11c9436 all runs: OK false negative chance: 0.000 # git bisect good 156d9e8341e8aad55b0e79b2dc54003cb14e5077 Bisecting: 8 revisions left to test after this (roughly 3 steps) [cd3cdb1ef706a1ac725194d81858d58375739b25] bcachefs: Single err message for btree node reads testing commit cd3cdb1ef706a1ac725194d81858d58375739b25 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 033b8259e40058cd6a3c6a26447245be2462aac3ed171dfddbe107db89f000ad all runs: crashed: kernel BUG in bch2_bkey_pack_pos_lossy representative crash: kernel BUG in bch2_bkey_pack_pos_lossy, types: [BUG] # git bisect bad cd3cdb1ef706a1ac725194d81858d58375739b25 Bisecting: 3 revisions left to test after this (roughly 2 steps) [300904700f14e4e05db2a16cf8e3890c8e856cf8] bcachefs: kill bch2_run_explicit_recovery_pass_persistent() testing commit 300904700f14e4e05db2a16cf8e3890c8e856cf8 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: c0e9343eff8a9b1003a6f2df146099d87e292cc98516028746e65e9bbb34c92f run #0: ignore: lost connection to test machine 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 false negative chance: 0.000 # git bisect good 300904700f14e4e05db2a16cf8e3890c8e856cf8 Bisecting: 1 revision left to test after this (roughly 1 step) [d31f155964aee6e6141967fc392a9a99b221e117] bcachefs: bch2_fsck_err_opt() testing commit d31f155964aee6e6141967fc392a9a99b221e117 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 0dc736fec7f5c8a10011f8119b089c2262cb54f88b6c4025da43b8075070e73f all runs: OK false negative chance: 0.000 # git bisect good d31f155964aee6e6141967fc392a9a99b221e117 Bisecting: 0 revisions left to test after this (roughly 0 steps) [9c2472658be20d04c6dc34d5314a7e99cc4fed25] bcachefs: bch2_mark_btree_validate_failure() testing commit 9c2472658be20d04c6dc34d5314a7e99cc4fed25 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 08a07a97cbfc7c1679de76a62ae3fa7f84f819d73e644f705d87579813bfda5a all runs: OK false negative chance: 0.000 # git bisect good 9c2472658be20d04c6dc34d5314a7e99cc4fed25 cd3cdb1ef706a1ac725194d81858d58375739b25 is the first bad commit commit cd3cdb1ef706a1ac725194d81858d58375739b25 Author: Kent Overstreet Date: Tue Apr 22 09:14:19 2025 -0400 bcachefs: Single err message for btree node reads Like we just did with the data read path, emit a single error message per btree node reads, nicely formatted, with all the actions we took grouped together. Signed-off-by: Kent Overstreet fs/bcachefs/btree_io.c | 254 ++++++++++++++++++++++++++++--------------------- fs/bcachefs/btree_io.h | 4 +- fs/bcachefs/debug.c | 4 +- 3 files changed, 151 insertions(+), 111 deletions(-) accumulated error probability: 0.00 culprit signature: 033b8259e40058cd6a3c6a26447245be2462aac3ed171dfddbe107db89f000ad parent signature: 08a07a97cbfc7c1679de76a62ae3fa7f84f819d73e644f705d87579813bfda5a revisions tested: 21, total time: 5h17m46.95686682s (build: 1h56m59.759345823s, test: 3h2m10.20675082s) first bad commit: cd3cdb1ef706a1ac725194d81858d58375739b25 bcachefs: Single err message for btree node reads recipients (to): ["kent.overstreet@linux.dev"] recipients (cc): [] crash: kernel BUG in bch2_bkey_pack_pos_lossy bcachefs (loop2): invalid bkey in btree_node btree=subvolumes level=0: u64s 8 type snapshot 0:4294967295:0 len 0 ver 0: is_subvol 1 deleted 0 parent 0 children 0 0 subvol 1 tree 0 invalid key type for btree subvolumes (snapshot), deleting ------------[ cut here ]------------ kernel BUG at fs/bcachefs/bkey.c:389! Oops: invalid opcode: 0000 [#1] SMP PTI CPU: 1 UID: 0 PID: 3348 Comm: read_btree_node Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:set_inc_field_lossy fs/bcachefs/bkey.c:389 [inline] RIP: 0010:bch2_bkey_pack_pos_lossy+0x600/0x620 fs/bcachefs/bkey.c:522 Code: c5 65 48 8b 0d 21 16 f8 02 48 3b 4c 24 60 75 14 48 83 c4 68 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 d1 12 28 01 90 <0f> 0b 90 0f 0b 90 0f 0b 90 0f 0b 90 0f 0b 90 0f 0b 66 66 66 66 66 RSP: 0018:ffffc90003213778 EFLAGS: 00010287 RAX: 0000000000000000 RBX: ffff88810eb4b800 RCX: 00000000ffffffff RDX: 0000000000000040 RSI: ffff88810eb4b800 RDI: ffffc90003213858 RBP: ffffffffffffff01 R08: fffffffffffffffe R09: ffffc90003213818 R10: 0000000000000040 R11: fffff700ffffffff R12: ffffffffffffffff R13: 00000000ffffffff R14: ffff88810eb4b8c0 R15: ffffc90003213850 FS: 0000000000000000(0000) GS:ffff8882b325c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ab310918f0 CR3: 0000000107784000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bkey_pack_pos fs/bcachefs/bkey.h:382 [inline] __build_ro_aux_tree+0x37e/0x670 fs/bcachefs/bset.c:735 bch2_bset_build_aux_tree+0x14c/0x170 fs/bcachefs/bset.c:779 bch2_btree_node_read_done+0x137b/0x1800 fs/bcachefs/btree_io.c:1322 btree_node_read_work+0x18a/0x490 fs/bcachefs/btree_io.c:1400 bch2_btree_node_read+0xc1a/0xcd0 fs/bcachefs/btree_io.c:-1 bch2_btree_node_fill+0x56f/0x730 fs/bcachefs/btree_cache.c:994 bch2_btree_node_get_noiter+0x2a8/0x320 fs/bcachefs/btree_cache.c:1261 found_btree_node_is_readable fs/bcachefs/btree_node_scan.c:85 [inline] try_read_btree_node fs/bcachefs/btree_node_scan.c:220 [inline] read_btree_nodes_worker+0x6d4/0x9f0 fs/bcachefs/btree_node_scan.c:269 kthread+0x23c/0x270 kernel/kthread.c:464 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:set_inc_field_lossy fs/bcachefs/bkey.c:389 [inline] RIP: 0010:bch2_bkey_pack_pos_lossy+0x600/0x620 fs/bcachefs/bkey.c:522 Code: c5 65 48 8b 0d 21 16 f8 02 48 3b 4c 24 60 75 14 48 83 c4 68 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 d1 12 28 01 90 <0f> 0b 90 0f 0b 90 0f 0b 90 0f 0b 90 0f 0b 90 0f 0b 66 66 66 66 66 RSP: 0018:ffffc90003213778 EFLAGS: 00010287 RAX: 0000000000000000 RBX: ffff88810eb4b800 RCX: 00000000ffffffff RDX: 0000000000000040 RSI: ffff88810eb4b800 RDI: ffffc90003213858 RBP: ffffffffffffff01 R08: fffffffffffffffe R09: ffffc90003213818 R10: 0000000000000040 R11: fffff700ffffffff R12: ffffffffffffffff R13: 00000000ffffffff R14: ffff88810eb4b8c0 R15: ffffc90003213850 FS: 0000000000000000(0000) GS:ffff8882b325c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ab310918f0 CR3: 0000000107784000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400