ci2 starts bisection 2023-09-30 19:42:53.49665218 +0000 UTC m=+105184.289901278 bisecting fixing commit since 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 building syzkaller on df07ffe8f9d561e9795b2dcf75a2af0bc1e7e9fa ensuring issue is reproducible on original commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1d2d710b7fb08b29f71a8f095dbd0a0139317313a880d01cb100234756bcb563 all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, 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 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3be6e5f7c2e2c022a7542bf48bf56ab0af5b95d19710a1725b72b49c09af510c all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed kconfig minimization: base=3876 full=7644 leaves diff=1998 split chunks (needed=false): <1998> split chunk #0 of len 1998 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 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 726985e205fb5689a700851511cfc7f0346c7a20f828a69f9b3aa5dcbbb770cd all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d41a009cf5338873920f2f26b6f6b55841b3900b4c8bc23fe90a3b28ede2f76f all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, 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 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ae8e667008afe620049fc32baaddf826511d1c411141798afe67671e2f73d9fc all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 92d75981171386dd541b951c10cc9c6ab0eec7644ae8ce57acc905f27bb17984 all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c2a5304c92615f4ffefcdc630c62f2733d4b800f3008bf1c4cbbbda49a55ccfa all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] the chunk can be dropped minimized to 400 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_PLATFORM_PROFILE ADDRESS_MASKING ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ASM_MODVERSIONS 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_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG 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 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_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_FD BLK_DEV_INTEGRITY BLK_DEV_INTEGRITY_T10 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_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_CMTP BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB 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_HIDP BT_HS BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MSFTEXT BT_MTK 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_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_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE 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_BQ24190 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 CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MBYTES 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_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_CFB CRYPTO_CHACHA20 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_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_ECB CRYPTO_ECC 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_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_OFB 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_SM2 CRYPTO_SM3 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_VMAC CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DIMLIB 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_BOCHS DRM_BUDDY DRM_CIRRUS_QEMU DRM_DEBUG_MM ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 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 [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing current HEAD 3b517966c5616ac011081153482a5ba0e91b17ff testing commit 3b517966c5616ac011081153482a5ba0e91b17ff gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 15ead886c93ef70f20fb46b9df6814a47ef4fc6fa802a123b9d870e9819aa525 all runs: OK false negative chance: 0.000 # git bisect start 3b517966c5616ac011081153482a5ba0e91b17ff 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 Bisecting: 7634 revisions left to test after this (roughly 13 steps) [461f35f014466c4e26dca6be0f431f57297df3f2] Merge tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm determine whether the revision contains the guilty commit revision 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 crashed and is reachable testing commit 461f35f014466c4e26dca6be0f431f57297df3f2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b7fe1f675984c00ecbf3003f2cca01ec7600d50d0e1a2a7b0ea97034239da8b8 all runs: OK false negative chance: 0.000 # git bisect bad 461f35f014466c4e26dca6be0f431f57297df3f2 Bisecting: 4415 revisions left to test after this (roughly 12 steps) [68cf01760bc0891074e813b9bb06d2696cac1c01] Merge tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 determine whether the revision contains the guilty commit revision 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 crashed and is reachable testing commit 68cf01760bc0891074e813b9bb06d2696cac1c01 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e03223096ad62cf5d81cb330e0db6b8162521bdc4f7ca7f8a16087d9a4470d5a all runs: OK false negative chance: 0.000 # git bisect bad 68cf01760bc0891074e813b9bb06d2696cac1c01 Bisecting: 1530 revisions left to test after this (roughly 11 steps) [b03a4342142be0c608061a91fa52ec21f6853152] Merge tag 'seccomp-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux determine whether the revision contains the guilty commit revision 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 crashed and is reachable testing commit b03a4342142be0c608061a91fa52ec21f6853152 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e4dac71cdbd8d241824c144705e698bf8d376b60fa21e9caf8f4e11aea040818 all runs: OK false negative chance: 0.000 # git bisect bad b03a4342142be0c608061a91fa52ec21f6853152 Bisecting: 767 revisions left to test after this (roughly 10 steps) [7793a88e881ffd4cde6d14eadc6485931d12a4cc] Merge tag 'batadv-net-pullrequest-20230816' of git://git.open-mesh.org/linux-merge determine whether the revision contains the guilty commit revision 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 crashed and is reachable testing commit 7793a88e881ffd4cde6d14eadc6485931d12a4cc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e692b8d6fa4d6c8a71e372ad614e6411274c6e9611019d2b3a15a97ec9eb7ed3 all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] # git bisect good 7793a88e881ffd4cde6d14eadc6485931d12a4cc Bisecting: 423 revisions left to test after this (roughly 9 steps) [84ab1277ce5a90a8d1f377707d662ac43cc0918a] Merge tag 'v6.6-vfs.fs_context' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs determine whether the revision contains the guilty commit revision 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 crashed and is reachable testing commit 84ab1277ce5a90a8d1f377707d662ac43cc0918a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6d98a288858b3e3f35ebab3fa7837afbf47c5bfd70c246cdea26d65ba145f792 all runs: OK false negative chance: 0.000 # git bisect bad 84ab1277ce5a90a8d1f377707d662ac43cc0918a Bisecting: 171 revisions left to test after this (roughly 8 steps) [89bf6209cad66214d3774dac86b6bbf2aec6a30d] Merge tag 'devicetree-fixes-for-6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux determine whether the revision contains the guilty commit revision 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 crashed and is reachable testing commit 89bf6209cad66214d3774dac86b6bbf2aec6a30d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6896adec50159cdde1c49ac1eed1c06a6ede6e36e5dbb9eaeca7aa922a5b6571 all runs: OK false negative chance: 0.000 # git bisect bad 89bf6209cad66214d3774dac86b6bbf2aec6a30d Bisecting: 86 revisions left to test after this (roughly 7 steps) [4e7ffde6984a7fa842489be7055570e5f5a4f0b5] Merge tag 'powerpc-6.5-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux determine whether the revision contains the guilty commit revision 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 crashed and is reachable testing commit 4e7ffde6984a7fa842489be7055570e5f5a4f0b5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6a6453c706139eb30b0593a8e99612096d3cb15e670dc20988c23b00144c9fbc all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] # git bisect good 4e7ffde6984a7fa842489be7055570e5f5a4f0b5 Bisecting: 45 revisions left to test after this (roughly 6 steps) [12e6ccedb311b32b16f767fdd606cc84630e45ae] Merge tag 'for-6.5-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux determine whether the revision contains the guilty commit revision 4e7ffde6984a7fa842489be7055570e5f5a4f0b5 crashed and is reachable testing commit 12e6ccedb311b32b16f767fdd606cc84630e45ae gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c39c305acce0941915a80aeb23dd027580c72caff2d4cd084379833f447f553 all runs: OK false negative chance: 0.000 # git bisect bad 12e6ccedb311b32b16f767fdd606cc84630e45ae Bisecting: 21 revisions left to test after this (roughly 4 steps) [bf98bae3d8a18745e54fef9fd71fd129f6e9f7e5] Merge tag 'x86_urgent_for_v6.5_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 crashed and is reachable testing commit bf98bae3d8a18745e54fef9fd71fd129f6e9f7e5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d5144baf2416478b31cd423a69e6f9704cbc87fd24362eae8cce8470966a34fa all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] # git bisect good bf98bae3d8a18745e54fef9fd71fd129f6e9f7e5 Bisecting: 12 revisions left to test after this (roughly 4 steps) [2383ffc41a7c701c058f6bb18030cd569aecd541] Merge tag 'block-6.5-2023-08-19' of git://git.kernel.dk/linux determine whether the revision contains the guilty commit revision bf98bae3d8a18745e54fef9fd71fd129f6e9f7e5 crashed and is reachable testing commit 2383ffc41a7c701c058f6bb18030cd569aecd541 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 48d21404e5340ae7fb60c34f0b5b0ecba8290a61398dc14aa8b6dd5cfca0ae5e all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] # git bisect good 2383ffc41a7c701c058f6bb18030cd569aecd541 Bisecting: 6 revisions left to test after this (roughly 3 steps) [0650d5098f8b6b232cd5ea0e15437fc38f7d63ba] fbdev: goldfishfb: Do not check 0 for platform_get_irq() determine whether the revision contains the guilty commit revision 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 crashed and is reachable testing commit 0650d5098f8b6b232cd5ea0e15437fc38f7d63ba gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5f05c07412f6c2015f2ce67b0c92643d25b3e5528edb991b919236deefa3b1f7 all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] # git bisect good 0650d5098f8b6b232cd5ea0e15437fc38f7d63ba Bisecting: 3 revisions left to test after this (roughly 2 steps) [09c3717c3a60e3ef599bc17c70cd3ae2b979ad41] btrfs: only subtract from len_to_oe_boundary when it is tracking an extent determine whether the revision contains the guilty commit checking the merge base b28ff3a7d7e97456fd86b68d24caa32e1cfa7064 no existing result, test the revision testing commit b28ff3a7d7e97456fd86b68d24caa32e1cfa7064 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cff47e53212bcc522c3c040a3db863b950ceeb3a9071098a078b5f79a4d19a0a all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] testing commit 09c3717c3a60e3ef599bc17c70cd3ae2b979ad41 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7acd156a5127c0c93dc481b4170de26c6ff5beed49fd6acd757b134c3bf6446e all runs: crashed: kernel BUG in btrfs_cancel_balance representative crash: kernel BUG in btrfs_cancel_balance, types: [BUG] # git bisect good 09c3717c3a60e3ef599bc17c70cd3ae2b979ad41 Bisecting: 1 revision left to test after this (roughly 1 step) [c962098ca4af146f2625ed64399926a098752c9c] btrfs: fix incorrect splitting in btrfs_drop_extent_map_range determine whether the revision contains the guilty commit revision b28ff3a7d7e97456fd86b68d24caa32e1cfa7064 crashed and is reachable testing commit c962098ca4af146f2625ed64399926a098752c9c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ef57ccaa3303f578c00f1108eb32f0e3ca5d6e4bb2288389f38d5af860e29444 all runs: OK false negative chance: 0.000 # git bisect bad c962098ca4af146f2625ed64399926a098752c9c Bisecting: 0 revisions left to test after this (roughly 0 steps) [29eefa6d0d07e185f7bfe9576f91e6dba98189c2] btrfs: fix BUG_ON condition in btrfs_cancel_balance determine whether the revision contains the guilty commit revision b28ff3a7d7e97456fd86b68d24caa32e1cfa7064 crashed and is reachable testing commit 29eefa6d0d07e185f7bfe9576f91e6dba98189c2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9f6426c29604613c05a77cbd506c6bf6c9b0bc8e9a8388d6f9a6def62500d126 all runs: OK false negative chance: 0.000 # git bisect bad 29eefa6d0d07e185f7bfe9576f91e6dba98189c2 29eefa6d0d07e185f7bfe9576f91e6dba98189c2 is the first bad commit commit 29eefa6d0d07e185f7bfe9576f91e6dba98189c2 Author: xiaoshoukui Date: Tue Aug 15 02:55:59 2023 -0400 btrfs: fix BUG_ON condition in btrfs_cancel_balance Pausing and canceling balance can race to interrupt balance lead to BUG_ON panic in btrfs_cancel_balance. The BUG_ON condition in btrfs_cancel_balance does not take this race scenario into account. However, the race condition has no other side effects. We can fix that. Reproducing it with panic trace like this: kernel BUG at fs/btrfs/volumes.c:4618! RIP: 0010:btrfs_cancel_balance+0x5cf/0x6a0 Call Trace: ? do_nanosleep+0x60/0x120 ? hrtimer_nanosleep+0xb7/0x1a0 ? sched_core_clone_cookie+0x70/0x70 btrfs_ioctl_balance_ctl+0x55/0x70 btrfs_ioctl+0xa46/0xd20 __x64_sys_ioctl+0x7d/0xa0 do_syscall_64+0x38/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Race scenario as follows: > mutex_unlock(&fs_info->balance_mutex); > -------------------- > .......issue pause and cancel req in another thread > -------------------- > ret = __btrfs_balance(fs_info); > > mutex_lock(&fs_info->balance_mutex); > if (ret == -ECANCELED && atomic_read(&fs_info->balance_pause_req)) { > btrfs_info(fs_info, "balance: paused"); > btrfs_exclop_balance(fs_info, BTRFS_EXCLOP_BALANCE_PAUSED); > } CC: stable@vger.kernel.org # 4.19+ Signed-off-by: xiaoshoukui Reviewed-by: David Sterba Signed-off-by: David Sterba fs/btrfs/volumes.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) accumulated error probability: 0.00 culprit signature: 9f6426c29604613c05a77cbd506c6bf6c9b0bc8e9a8388d6f9a6def62500d126 parent signature: 7acd156a5127c0c93dc481b4170de26c6ff5beed49fd6acd757b134c3bf6446e revisions tested: 23, total time: 4h19m43.514453861s (build: 1h18m36.472058666s, test: 2h52m17.284811899s) first good commit: 29eefa6d0d07e185f7bfe9576f91e6dba98189c2 btrfs: fix BUG_ON condition in btrfs_cancel_balance recipients (to): ["dsterba@suse.com" "xiaoshoukui@gmail.com" "xiaoshoukui@ruijie.com.cn"] recipients (cc): []