ci2 starts bisection 2025-08-01 06:18:45.820828574 +0000 UTC m=+52209.067250917
bisecting cause commit starting from e8d780dcd957d80725ad5dd00bab53b856429bc0
building syzkaller on f8f2b4da0e6eaaf0aeed6f6d613d86d599aafcd3
ensuring issue is reproducible on original commit e8d780dcd957d80725ad5dd00bab53b856429bc0

testing commit e8d780dcd957d80725ad5dd00bab53b856429bc0 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 8a3d28288f58858eaae76ef91b8d07329a67887d5d0aa9e7a0f4c4faf79cdbc1
all runs: crashed: kernel BUG in bch2_btree_repair_topology_recurse
representative crash: kernel BUG in bch2_btree_repair_topology_recurse, types: [BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit e8d780dcd957d80725ad5dd00bab53b856429bc0 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 9276da1d190346aad8d28014118457ecdd8a4303ddc2512a95b3bc570e62a96c
all runs: crashed: kernel BUG in bch2_btree_repair_topology_recurse
representative crash: kernel BUG in bch2_btree_repair_topology_recurse, types: [BUG]
the bug reproduces without the instrumentation
disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed
kconfig minimization: base=4088 full=8329 leaves diff=2148
split chunks (needed=false): <2148>
split chunk #0 of len 2148 into 5 parts
testing without sub-chunk 1/5
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit e8d780dcd957d80725ad5dd00bab53b856429bc0 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: ca6c0b3467a4d68059fef678689bc47772ebd3ccb1d68c73851f72294bc1a852
all runs: OK
false negative chance: 0.000
testing without sub-chunk 2/5
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit e8d780dcd957d80725ad5dd00bab53b856429bc0 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 1cf1ec8be9f36a68308acac0a920e23d19b723eabb6377738d381ad4ef9894b0
all runs: crashed: kernel BUG in bch2_btree_repair_topology_recurse
representative crash: kernel BUG in bch2_btree_repair_topology_recurse, types: [BUG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed
testing commit e8d780dcd957d80725ad5dd00bab53b856429bc0 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: e54afea1b2e952df8b7ef9d7ac3ad2a49af409c311a041476a895ed7dca25b1e
all runs: crashed: kernel BUG in bch2_btree_repair_topology_recurse
representative crash: kernel BUG in bch2_btree_repair_topology_recurse, types: [BUG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed
testing commit e8d780dcd957d80725ad5dd00bab53b856429bc0 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 5cf6a76a022a70062428a2485c59912d69cb88d3dda3ca0e87cb1d60d2401428
all runs: crashed: kernel BUG in bch2_btree_repair_topology_recurse
representative crash: kernel BUG in bch2_btree_repair_topology_recurse, types: [BUG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit e8d780dcd957d80725ad5dd00bab53b856429bc0 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 76bc39223d124ddb42d2098cccaab1c190992bc06d25e9897476b4103e52a42a
all runs: crashed: kernel BUG in bch2_btree_repair_topology_recurse
representative crash: kernel BUG in bch2_btree_repair_topology_recurse, types: [BUG]
the chunk can be dropped
minimized to 430 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_HAS_CPU_ATTACK_VECTORS ARCH_HAS_USER_SHADOW_STACK 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 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 MMC MTD NET_CLS_U32 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]
disabling configs for [atomic_sleep hang memleak ubsan kasan locking], 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 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: beb936bb017df45013d538859c5e1544b0c746b6b6aeb5b054ddd1e07011c7b3
all runs: crashed: kernel BUG in bch2_btree_repair_topology_recurse
representative crash: kernel BUG in bch2_btree_repair_topology_recurse, types: [BUG]
testing release v6.15
testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 42a529b1652928e62972d080e17329989819e967c412ff8b99bd1996c6e36eea
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 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: f0025c03f4ecf3dd076304ef62ebb85a0435188bad2e60581b1ab8c06db77187
all runs: OK
false negative chance: 0.000
# git bisect start 0ff41df1cb268fc69e703a08a57ee14ae967d0ca 38fec10eb60d687e30c8c6b5420d86e8149f7557
Bisecting: 8357 revisions left to test after this (roughly 13 steps)
[390513642ee6763c7ada07f0a1470474986e6c1c] io_uring: always do atomic put from iowq

testing commit 390513642ee6763c7ada07f0a1470474986e6c1c gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 76944c95e85119dd81642d2450711b997dd72bf65ee687928eeee44cf36854d6
all runs: OK
false negative chance: 0.000
# git bisect good 390513642ee6763c7ada07f0a1470474986e6c1c
Bisecting: 4194 revisions left to test after this (roughly 12 steps)
[eb0ece16027f8223d5dc9aaf90124f70577bd22a] Merge tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

testing commit eb0ece16027f8223d5dc9aaf90124f70577bd22a gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 05786c528bd2805bde0cf34a7811f614a0056bd388a10b15ce8d9b7fecf2604d
all runs: OK
false negative chance: 0.000
# git bisect good eb0ece16027f8223d5dc9aaf90124f70577bd22a
Bisecting: 2091 revisions left to test after this (roughly 11 steps)
[ff885625298f83785b7db1b95af051a080aab7b4] Merge tag 'block-6.15-20250411' of git://git.kernel.dk/linux

testing commit ff885625298f83785b7db1b95af051a080aab7b4 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 65a2217cf04d4f4da56bce99f999943969cd0fc1da681c3e13c8ac6a68de673f
all runs: OK
false negative chance: 0.000
# git bisect good ff885625298f83785b7db1b95af051a080aab7b4
Bisecting: 1045 revisions left to test after this (roughly 10 steps)
[4397684a292a71fbc1e815c3e283f7490ddce5ae] virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()

testing commit 4397684a292a71fbc1e815c3e283f7490ddce5ae gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: c2214d39b08b7caecef7aa89fe87e58ba28d914bf2a3142848fb8d05ccbf18df
all runs: OK
false negative chance: 0.000
# git bisect good 4397684a292a71fbc1e815c3e283f7490ddce5ae
Bisecting: 522 revisions left to test after this (roughly 9 steps)
[a833a693a490ecff8ba377654c6d4d333718b6b1] mm: hugetlb: fix incorrect fallback for subpool

testing commit a833a693a490ecff8ba377654c6d4d333718b6b1 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 57bc678e306fbb8c5dbe9da064c18c6fc52ac92c0afe68ceb8edae576e04f930
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 a833a693a490ecff8ba377654c6d4d333718b6b1
Bisecting: 231 revisions left to test after this (roughly 8 steps)
[2c89c1b655c0b06823f4ee8b055140d8628fc4da] Merge tag 'net-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

testing commit 2c89c1b655c0b06823f4ee8b055140d8628fc4da gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 52c2bb34f3cbcf7d0c8d8bba236c354cdb7e95674da7d6e4f4959addff43b1d4
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 2c89c1b655c0b06823f4ee8b055140d8628fc4da
Bisecting: 146 revisions left to test after this (roughly 7 steps)
[2a239ffbebb59fb5b3e95725dd1d99634180494f] Merge tag 'sound-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

testing commit 2a239ffbebb59fb5b3e95725dd1d99634180494f gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 286b637b599203ead2f481524823384bbe2250db5aef5a3522448a38fcf14961
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 2a239ffbebb59fb5b3e95725dd1d99634180494f
Bisecting: 82 revisions left to test after this (roughly 6 steps)
[00b827f0cffa50abb6773ad4c34f4cd909dae1c8] Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

testing commit 00b827f0cffa50abb6773ad4c34f4cd909dae1c8 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 4326d537308006f82d2816efa1ef07d8aae1cad8294e8b0f0c9b65cd4d1c9b5e
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 00b827f0cffa50abb6773ad4c34f4cd909dae1c8
Bisecting: 38 revisions left to test after this (roughly 5 steps)
[6846100b00d97d3d6f05766ae86a0d821d849e78] bcachefs: Remove incorrect __counted_by annotation

testing commit 6846100b00d97d3d6f05766ae86a0d821d849e78 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 851a251e41e8aaecba20511034390ea9becff2f253a5314f23c4998377c60b27
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 6846100b00d97d3d6f05766ae86a0d821d849e78
Bisecting: 10 revisions left to test after this (roughly 4 steps)
[652dd6558b8b5a1a04fef129e0231ee493e24951] bcachefs: btree_root_unreadable_and_scan_found_nothing autofix for non data btrees

testing commit 652dd6558b8b5a1a04fef129e0231ee493e24951 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 5aa973d18f0df90241077f3c8e4fa2302ef9034378f6b7998122d1946ca479f1
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 652dd6558b8b5a1a04fef129e0231ee493e24951
Bisecting: 5 revisions left to test after this (roughly 3 steps)
[3c24020119a5f55ec902b5fdc24d8666d76340b3] bcachefs: Run BCH_RECOVERY_PASS_reconstruct_snapshots on missing subvol -> snapshot

testing commit 3c24020119a5f55ec902b5fdc24d8666d76340b3 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 9d5293eb1fd4fd5ede150b9dd8409c7f87be55c20b29544e5c0c06f4b60d9e36
all runs: OK
false negative chance: 0.000
# git bisect good 3c24020119a5f55ec902b5fdc24d8666d76340b3
Bisecting: 2 revisions left to test after this (roughly 2 steps)
[e7f1a52849a01c63c796a9dfe6697d05fff23324] bcachefs: Improve bch2_dev_bucket_missing()

testing commit e7f1a52849a01c63c796a9dfe6697d05fff23324 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: e7618d490e6a7ab8604edcc6bbb0693ec9efb14b842fd8f249b2372cf4c67d68
all runs: OK
false negative chance: 0.000
# git bisect good e7f1a52849a01c63c796a9dfe6697d05fff23324
Bisecting: 0 revisions left to test after this (roughly 1 step)
[c366b1672d74cb008974f6e36e34dc191621f3bb] bcachefs: btree_node_data_missing is now autofix

testing commit c366b1672d74cb008974f6e36e34dc191621f3bb gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: f0f3900f77f1c9938772efe85a4e0782b98ba36551885208835c8776dbc9e398
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 c366b1672d74cb008974f6e36e34dc191621f3bb
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[eca5b56ccfdf583a8781503646fb39554f8624bd] bcachefs: Don't generate alloc updates to invalid buckets

testing commit eca5b56ccfdf583a8781503646fb39554f8624bd gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 48430b023d73d9f9e13393a97a201973f6ee1127717f57e787583d937b9c08c9
all runs: OK
false negative chance: 0.000
# git bisect good eca5b56ccfdf583a8781503646fb39554f8624bd
c366b1672d74cb008974f6e36e34dc191621f3bb is the first bad commit
commit c366b1672d74cb008974f6e36e34dc191621f3bb
Author: Kent Overstreet <kent.overstreet@linux.dev>
Date:   Sat Apr 26 09:31:23 2025 -0400

    bcachefs: btree_node_data_missing is now autofix
    
    Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

 fs/bcachefs/sb-errors_format.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

accumulated error probability: 0.00
culprit signature: f0f3900f77f1c9938772efe85a4e0782b98ba36551885208835c8776dbc9e398
parent  signature: 48430b023d73d9f9e13393a97a201973f6ee1127717f57e787583d937b9c08c9
revisions tested: 24, total time: 5h0m6.611920643s (build: 2h3m37.054968982s, test: 2h38m16.405698919s)
first bad commit: c366b1672d74cb008974f6e36e34dc191621f3bb bcachefs: btree_node_data_missing is now autofix
recipients (to): ["kent.overstreet@linux.dev"]
recipients (cc): []
crash: kernel BUG in bch2_btree_path_level_init
bcachefs (loop2): invalid bkey in btree_node btree=subvolumes level=0: u64s 10 type subvolume 0:1970324836974593:0 len 0 ver 0: root 4096 snapshot id 4294967295 creation_parent 0 fs_parent 0
  invalid pos, deleting
bcachefs (loop2): accounting_read... done
bcachefs (loop2): alloc_read... done
bcachefs (loop2): snapshots_read... done
bcachefs (loop2): check_allocations...
------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_iter.c:619!
Oops: invalid opcode: 0000 [#1] SMP PTI
CPU: 0 UID: 0 PID: 3309 Comm: syz.2.16 Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(undef) 
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:619
Code: 78 02 00 75 17 4c 89 f7 48 89 de e8 27 73 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:ffffc900034334d0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88810839c268 RCX: 0000000000000000
RDX: ffff88810abcd800 RSI: 0000000000000000 RDI: ffff88810df78000
RBP: ffff88810839c288 R08: 0000000000000003 R09: 0000000000000001
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88810839c000 R14: 0000000000000000 R15: ffff88810abcd800
FS:  00007f40f2c1e6c0(0000) GS:ffff8882b31d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40ead0b000 CR3: 0000000104ffe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btree_path_lock_root fs/bcachefs/btree_iter.c:773 [inline]
 bch2_btree_path_traverse_one+0x690/0xc10 fs/bcachefs/btree_iter.c:1189
 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:248 [inline]
 __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2243 [inline]
 bch2_btree_iter_peek_max+0x289/0xe20 fs/bcachefs/btree_iter.c:2347
 bch2_btree_iter_peek_max_type fs/bcachefs/btree_iter.h:702 [inline]
 bch2_gc_btree fs/bcachefs/btree_gc.c:677 [inline]
 bch2_gc_btrees fs/bcachefs/btree_gc.c:740 [inline]
 bch2_check_allocations+0x1a2f/0x2050 fs/bcachefs/btree_gc.c:1042
 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:227 [inline]
 bch2_run_recovery_passes+0x1d9/0x360 fs/bcachefs/recovery_passes.c:280
 bch2_fs_recovery+0x9de/0x1390 fs/bcachefs/recovery.c:937
 bch2_fs_start+0x2eb/0x440 fs/bcachefs/super.c:1091
 bch2_fs_get_tree+0x4f8/0x6c0 fs/bcachefs/fs.c:2570
 vfs_get_tree+0x26/0xf0 fs/super.c:1759
 do_new_mount+0x13f/0x390 fs/namespace.c:3884
 do_mount fs/namespace.c:4224 [inline]
 __do_sys_mount fs/namespace.c:4435 [inline]
 __se_sys_mount+0x147/0x1b0 fs/namespace.c:4412
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f40f39b014a
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:00007f40f2c1de68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f40f2c1def0 RCX: 00007f40f39b014a
RDX: 0000200000001000 RSI: 0000200000001040 RDI: 00007f40f2c1deb0
RBP: 0000200000001000 R08: 00007f40f2c1def0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000001040
R13: 00007f40f2c1deb0 R14: 0000000000004914 R15: 0000200000001080
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_btree_path_level_init+0x113/0x120 fs/bcachefs/btree_iter.c:619
Code: 78 02 00 75 17 4c 89 f7 48 89 de e8 27 73 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:ffffc900034334d0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88810839c268 RCX: 0000000000000000
RDX: ffff88810abcd800 RSI: 0000000000000000 RDI: ffff88810df78000
RBP: ffff88810839c288 R08: 0000000000000003 R09: 0000000000000001
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88810839c000 R14: 0000000000000000 R15: ffff88810abcd800
FS:  00007f40f2c1e6c0(0000) GS:ffff8882b31d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40ead0b000 CR3: 0000000104ffe000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400