ci2 starts bisection 2023-08-01 06:58:21.448036683 +0000 UTC m=+141084.365754384 bisecting fixing commit since eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 building syzkaller on 52fdf57a86cb556640e5ebcc234bc826ff249546 ensuring issue is reproducible on original commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fbd7664884c700a524cc8f375cfe0f657e2ce6bf8aacfbd5f53145ebe311655c all runs: crashed: possible deadlock in btrfs_commit_transaction representative crash: possible deadlock in btrfs_commit_transaction, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 52867d848e2fa3372845050d7f904925c77ba8891817923a9071c56856cfac60 all runs: OK false negative chance: 0.000 kconfig minimization: base=3876 full=7511 leaves diff=2007 split chunks (needed=false): <2007> split chunk #0 of len 2007 into 5 parts testing without sub-chunk 1/5 testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d9adec8d7bbeaa22eb6acdf090b43b09e3ccab944fb8d39dbba1173749641b6e all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 030a3460518a398b54c7c5fdedc1fdb692e5bcb56c809669ef195619e18d6612 all runs: crashed: possible deadlock in btrfs_commit_transaction representative crash: possible deadlock in btrfs_commit_transaction, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 437a99f208bd643869a42ea5ce55d28a470620f90e0d93a81cb8f14f2c8d0659 all runs: crashed: possible deadlock in btrfs_commit_transaction representative crash: possible deadlock in btrfs_commit_transaction, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 371ec0f837b548e6d7a8f22d12b3cf1344b1d91d692277ffed6e3caa17653555 all runs: crashed: possible deadlock in btrfs_commit_transaction representative crash: possible deadlock in btrfs_commit_transaction, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ad73847bd314a6649ff0acd1c2cf6e2bac93513940b105e1c749de85b2ff2b9e all runs: crashed: possible deadlock in btrfs_commit_transaction representative crash: possible deadlock in btrfs_commit_transaction, types: [LOCKDEP] the chunk can be dropped minimized to 402 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 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 ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP 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_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_FD BLK_DEV_INITRD 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_MQ_RDMA BLK_WBT BLK_WBT_MQ BLOCK_COMPAT 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_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_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL BUILD_BIN2C 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 CC_HAS_UBSAN_BOUNDS 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_GF128MUL 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 DCB DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT DEFAULT_PFIFO_FAST DEFAULT_SECURITY_APPARMOR DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DIMLIB DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA 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 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] testing current HEAD 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 91da12b11e728c999f3b130b0dd64381b9e12caf6687c8896326bd9be330279b all runs: OK false negative chance: 0.000 # git bisect start 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 Bisecting: 31395 revisions left to test after this (roughly 15 steps) [b8fa3e3833c14151a47ebebbc5427dcfe94bb407] Merge remote-tracking branch 'acme/perf-tools' into perf-tools-next testing commit b8fa3e3833c14151a47ebebbc5427dcfe94bb407 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e10dc05d4743f0282b4aa97832d752df88eb947c6de9440673f16e08a9f4bf5a all runs: OK false negative chance: 0.000 # git bisect bad b8fa3e3833c14151a47ebebbc5427dcfe94bb407 Bisecting: 15720 revisions left to test after this (roughly 14 steps) [a389e54642a86c91d683b2f0b248f1d2f4e52611] Merge tag 'riscv-for-linus-6.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux testing commit a389e54642a86c91d683b2f0b248f1d2f4e52611 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc390c18d6c5b7e7d132d5d40112240b71cc6f593b6c32e062cb7d3a1902f0a8 all runs: OK false negative chance: 0.000 # git bisect bad a389e54642a86c91d683b2f0b248f1d2f4e52611 Bisecting: 7919 revisions left to test after this (roughly 13 steps) [71946a25f357a51dcce849367501d7fb04c0465b] Merge tag 'mmc-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc testing commit 71946a25f357a51dcce849367501d7fb04c0465b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 376a542552da60dbcc9755cc2b59831fdcd16ecf94ef0a5a69bc9632211cf771 all runs: OK false negative chance: 0.000 # git bisect bad 71946a25f357a51dcce849367501d7fb04c0465b Bisecting: 3843 revisions left to test after this (roughly 12 steps) [149c51f876322d9bfbd5e2d6ffae7aff3d794384] Merge tag 'for-6.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux testing commit 149c51f876322d9bfbd5e2d6ffae7aff3d794384 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 01d0ff0260725a078b5519b5d08c6d254b553f955d5759b2237abefd40f1e684 all runs: OK false negative chance: 0.000 # git bisect bad 149c51f876322d9bfbd5e2d6ffae7aff3d794384 Bisecting: 1506 revisions left to test after this (roughly 11 steps) [01f3cbb296a9ad378167c01758c99557b5bc3208] Merge tag 'soc-dt-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit 01f3cbb296a9ad378167c01758c99557b5bc3208 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78bc70a1847e8b5b28c3bb58d7e2d9efacb2a9ab65a6a4e4c78bc24ea29cfecc all runs: OK false negative chance: 0.000 # git bisect bad 01f3cbb296a9ad378167c01758c99557b5bc3208 Bisecting: 1210 revisions left to test after this (roughly 10 steps) [5910b842c489ec40866182d1b2acf7d20c2bc83f] Merge tag 'soc-defconfig-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit 5910b842c489ec40866182d1b2acf7d20c2bc83f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7755d335a3252fcdbb9402094386651320e27ee3a3206ab33aacbbdfc94fe84b all runs: OK false negative chance: 0.000 # git bisect bad 5910b842c489ec40866182d1b2acf7d20c2bc83f Bisecting: 604 revisions left to test after this (roughly 9 steps) [479174d402bcf60789106eedc4def3957c060bad] Merge tag 'platform-drivers-x86-v6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 testing commit 479174d402bcf60789106eedc4def3957c060bad gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 810330cccf693431b885780525eb0d7d104e61ab01d1a39b77b9eb101e68bea8 all runs: OK false negative chance: 0.000 # git bisect bad 479174d402bcf60789106eedc4def3957c060bad Bisecting: 302 revisions left to test after this (roughly 8 steps) [990f320031209ecfdb1bef33798970506d10dae8] Merge tag 'block-6.1-2022-11-25' of git://git.kernel.dk/linux testing commit 990f320031209ecfdb1bef33798970506d10dae8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3e66f25fc9e299b7fbb65cf5d68bc91287087c435fc5909a38a453df2b2688d0 all runs: OK false negative chance: 0.000 # git bisect bad 990f320031209ecfdb1bef33798970506d10dae8 Bisecting: 126 revisions left to test after this (roughly 7 steps) [08ad43d554bacb9769c6a69d5f771f02f5ba411c] Merge tag 'net-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 08ad43d554bacb9769c6a69d5f771f02f5ba411c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c0f7bfcf3d48d9e58c588dde48013b288460629b8e92d897b6e086f25a13fd42 all runs: crashed: possible deadlock in btrfs_commit_transaction representative crash: possible deadlock in btrfs_commit_transaction, types: [LOCKDEP] # git bisect good 08ad43d554bacb9769c6a69d5f771f02f5ba411c Bisecting: 51 revisions left to test after this (roughly 6 steps) [0b1dcc2cf55ae6523c6fbd0d741b3ac28c9f4536] Merge tag 'mm-hotfixes-stable-2022-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit 0b1dcc2cf55ae6523c6fbd0d741b3ac28c9f4536 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7e78d7309e1f38cca2c486dbdfd7fa6ffb0d89d88fc9a2aa56c083ca08285e5e all runs: crashed: possible deadlock in btrfs_commit_transaction representative crash: possible deadlock in btrfs_commit_transaction, types: [LOCKDEP] # git bisect good 0b1dcc2cf55ae6523c6fbd0d741b3ac28c9f4536 Bisecting: 22 revisions left to test after this (roughly 5 steps) [3eaea0db25261f62e21229f5763728dac40a1058] Merge tag 'for-6.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux testing commit 3eaea0db25261f62e21229f5763728dac40a1058 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7db4004130a5b0d1f0b405803c3f2f49feda63bdd43e48447305eb10e1926110 all runs: OK false negative chance: 0.000 # git bisect bad 3eaea0db25261f62e21229f5763728dac40a1058 Bisecting: 11 revisions left to test after this (roughly 4 steps) [88817acb8b75fe533fb5dfb6234a4e2104465e53] Merge tag 'pm-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm testing commit 88817acb8b75fe533fb5dfb6234a4e2104465e53 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ecd3a987eddd74f505fa678d6a2dea2d8a357a2a30573c818d4c44b658c32a82 all runs: crashed: possible deadlock in btrfs_commit_transaction representative crash: possible deadlock in btrfs_commit_transaction, types: [LOCKDEP] # git bisect good 88817acb8b75fe533fb5dfb6234a4e2104465e53 Bisecting: 5 revisions left to test after this (roughly 3 steps) [c51f0e6a1254b3ac2d308e1c6fd8fb936992b455] btrfs: zoned: fix missing endianness conversion in sb_write_pointer testing commit c51f0e6a1254b3ac2d308e1c6fd8fb936992b455 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a2b1cb9093f99d771f4b0efa75e0850988faee002fc1f144253f38dadf6d6db6 all runs: OK false negative chance: 0.000 # git bisect bad c51f0e6a1254b3ac2d308e1c6fd8fb936992b455 Bisecting: 2 revisions left to test after this (roughly 2 steps) [418ffb9e3cf6c4e2574d3a732b724916684bd133] btrfs: free btrfs_path before copying inodes to userspace testing commit 418ffb9e3cf6c4e2574d3a732b724916684bd133 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ed1f0c719fbbc86fde1f4af1038febef66521654f93f1a845f0dc4bc42212b33 all runs: OK false negative chance: 0.000 # git bisect bad 418ffb9e3cf6c4e2574d3a732b724916684bd133 Bisecting: 0 revisions left to test after this (roughly 1 step) [b740d806166979488e798e41743aaec051f2443f] btrfs: free btrfs_path before copying root refs to userspace testing commit b740d806166979488e798e41743aaec051f2443f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4bb4f4d4388c75836446d9e1900ab4a700cfb929d49f4fada658873835237ba all runs: OK false negative chance: 0.000 # git bisect bad b740d806166979488e798e41743aaec051f2443f Bisecting: 0 revisions left to test after this (roughly 0 steps) [bdcdd86ca94b5e9faa18d6f4d3dda660ac5c887e] btrfs: fix assertion failure and blocking during nowait buffered write testing commit bdcdd86ca94b5e9faa18d6f4d3dda660ac5c887e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f84d3aed133b35a10b6293ad7505ebdd5d429cf9bf61ac75b9d64eda210c9436 run #0: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc002543310 0xc002543400 0xc0025434a0] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request. '(resource type:compute)'. ForceSendFields:[] NullFields:[]}. run #1: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc001f41d60 0xc001f41ea0 0xc001f41f40] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request. '(resource type:compute)'. ForceSendFields:[] NullFields:[]}. run #2: crashed: possible deadlock in btrfs_commit_transaction run #3: crashed: possible deadlock in btrfs_commit_transaction run #4: crashed: possible deadlock in btrfs_commit_transaction run #5: crashed: possible deadlock in btrfs_commit_transaction run #6: crashed: possible deadlock in btrfs_commit_transaction run #7: crashed: possible deadlock in btrfs_commit_transaction run #8: crashed: possible deadlock in btrfs_commit_transaction run #9: crashed: possible deadlock in btrfs_commit_transaction run #10: crashed: possible deadlock in btrfs_commit_transaction run #11: crashed: possible deadlock in btrfs_commit_transaction run #12: crashed: possible deadlock in btrfs_commit_transaction run #13: crashed: possible deadlock in btrfs_commit_transaction run #14: crashed: possible deadlock in btrfs_commit_transaction run #15: crashed: possible deadlock in btrfs_commit_transaction run #16: crashed: possible deadlock in btrfs_commit_transaction run #17: crashed: possible deadlock in btrfs_commit_transaction representative crash: possible deadlock in btrfs_commit_transaction, types: [LOCKDEP] # git bisect good bdcdd86ca94b5e9faa18d6f4d3dda660ac5c887e b740d806166979488e798e41743aaec051f2443f is the first bad commit commit b740d806166979488e798e41743aaec051f2443f Author: Josef Bacik Date: Mon Nov 7 11:44:51 2022 -0500 btrfs: free btrfs_path before copying root refs to userspace Syzbot reported the following lockdep splat ====================================================== WARNING: possible circular locking dependency detected 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Not tainted ------------------------------------------------------ syz-executor307/3029 is trying to acquire lock: ffff0000c02525d8 (&mm->mmap_lock){++++}-{3:3}, at: __might_fault+0x54/0xb4 mm/memory.c:5576 but task is already holding lock: ffff0000c958a608 (btrfs-root-00){++++}-{3:3}, at: __btrfs_tree_read_lock fs/btrfs/locking.c:134 [inline] ffff0000c958a608 (btrfs-root-00){++++}-{3:3}, at: btrfs_tree_read_lock fs/btrfs/locking.c:140 [inline] ffff0000c958a608 (btrfs-root-00){++++}-{3:3}, at: btrfs_read_lock_root_node+0x13c/0x1c0 fs/btrfs/locking.c:279 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (btrfs-root-00){++++}-{3:3}: down_read_nested+0x64/0x84 kernel/locking/rwsem.c:1624 __btrfs_tree_read_lock fs/btrfs/locking.c:134 [inline] btrfs_tree_read_lock fs/btrfs/locking.c:140 [inline] btrfs_read_lock_root_node+0x13c/0x1c0 fs/btrfs/locking.c:279 btrfs_search_slot_get_root+0x74/0x338 fs/btrfs/ctree.c:1637 btrfs_search_slot+0x1b0/0xfd8 fs/btrfs/ctree.c:1944 btrfs_update_root+0x6c/0x5a0 fs/btrfs/root-tree.c:132 commit_fs_roots+0x1f0/0x33c fs/btrfs/transaction.c:1459 btrfs_commit_transaction+0x89c/0x12d8 fs/btrfs/transaction.c:2343 flush_space+0x66c/0x738 fs/btrfs/space-info.c:786 btrfs_async_reclaim_metadata_space+0x43c/0x4e0 fs/btrfs/space-info.c:1059 process_one_work+0x2d8/0x504 kernel/workqueue.c:2289 worker_thread+0x340/0x610 kernel/workqueue.c:2436 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 -> #2 (&fs_info->reloc_mutex){+.+.}-{3:3}: __mutex_lock_common+0xd4/0xca8 kernel/locking/mutex.c:603 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 btrfs_record_root_in_trans fs/btrfs/transaction.c:516 [inline] start_transaction+0x248/0x944 fs/btrfs/transaction.c:752 btrfs_start_transaction+0x34/0x44 fs/btrfs/transaction.c:781 btrfs_create_common+0xf0/0x1b4 fs/btrfs/inode.c:6651 btrfs_create+0x8c/0xb0 fs/btrfs/inode.c:6697 lookup_open fs/namei.c:3413 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x804/0x11c4 fs/namei.c:3688 do_filp_open+0xdc/0x1b8 fs/namei.c:3718 do_sys_openat2+0xb8/0x22c fs/open.c:1313 do_sys_open fs/open.c:1329 [inline] __do_sys_openat fs/open.c:1345 [inline] __se_sys_openat fs/open.c:1340 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1340 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 -> #1 (sb_internal#2){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1826 [inline] sb_start_intwrite include/linux/fs.h:1948 [inline] start_transaction+0x360/0x944 fs/btrfs/transaction.c:683 btrfs_join_transaction+0x30/0x40 fs/btrfs/transaction.c:795 btrfs_dirty_inode+0x50/0x140 fs/btrfs/inode.c:6103 btrfs_update_time+0x1c0/0x1e8 fs/btrfs/inode.c:6145 inode_update_time fs/inode.c:1872 [inline] touch_atime+0x1f0/0x4a8 fs/inode.c:1945 file_accessed include/linux/fs.h:2516 [inline] btrfs_file_mmap+0x50/0x88 fs/btrfs/file.c:2407 call_mmap include/linux/fs.h:2192 [inline] mmap_region+0x7fc/0xc14 mm/mmap.c:1752 do_mmap+0x644/0x97c mm/mmap.c:1540 vm_mmap_pgoff+0xe8/0x1d0 mm/util.c:552 ksys_mmap_pgoff+0x1cc/0x278 mm/mmap.c:1586 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline] __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline] __arm64_sys_mmap+0x58/0x6c arch/arm64/kernel/sys.c:21 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 -> #0 (&mm->mmap_lock){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3095 [inline] check_prevs_add kernel/locking/lockdep.c:3214 [inline] validate_chain kernel/locking/lockdep.c:3829 [inline] __lock_acquire+0x1530/0x30a4 kernel/locking/lockdep.c:5053 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666 __might_fault+0x7c/0xb4 mm/memory.c:5577 _copy_to_user include/linux/uaccess.h:134 [inline] copy_to_user include/linux/uaccess.h:160 [inline] btrfs_ioctl_get_subvol_rootref+0x3a8/0x4bc fs/btrfs/ioctl.c:3203 btrfs_ioctl+0xa08/0xa64 fs/btrfs/ioctl.c:5556 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 other info that might help us debug this: Chain exists of: &mm->mmap_lock --> &fs_info->reloc_mutex --> btrfs-root-00 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(btrfs-root-00); lock(&fs_info->reloc_mutex); lock(btrfs-root-00); lock(&mm->mmap_lock); *** DEADLOCK *** 1 lock held by syz-executor307/3029: #0: ffff0000c958a608 (btrfs-root-00){++++}-{3:3}, at: __btrfs_tree_read_lock fs/btrfs/locking.c:134 [inline] #0: ffff0000c958a608 (btrfs-root-00){++++}-{3:3}, at: btrfs_tree_read_lock fs/btrfs/locking.c:140 [inline] #0: ffff0000c958a608 (btrfs-root-00){++++}-{3:3}, at: btrfs_read_lock_root_node+0x13c/0x1c0 fs/btrfs/locking.c:279 stack backtrace: CPU: 0 PID: 3029 Comm: syz-executor307 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 Call trace: dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:156 show_stack+0x2c/0x54 arch/arm64/kernel/stacktrace.c:163 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x104/0x16c lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x2c4/0x2c8 kernel/locking/lockdep.c:2053 check_noncircular+0x14c/0x154 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3095 [inline] check_prevs_add kernel/locking/lockdep.c:3214 [inline] validate_chain kernel/locking/lockdep.c:3829 [inline] __lock_acquire+0x1530/0x30a4 kernel/locking/lockdep.c:5053 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666 __might_fault+0x7c/0xb4 mm/memory.c:5577 _copy_to_user include/linux/uaccess.h:134 [inline] copy_to_user include/linux/uaccess.h:160 [inline] btrfs_ioctl_get_subvol_rootref+0x3a8/0x4bc fs/btrfs/ioctl.c:3203 btrfs_ioctl+0xa08/0xa64 fs/btrfs/ioctl.c:5556 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 We do generally the right thing here, copying the references into a temporary buffer, however we are still holding the path when we do copy_to_user from the temporary buffer. Fix this by freeing the path before we copy to user space. Reported-by: syzbot+4ef9e52e464c6ff47d9d@syzkaller.appspotmail.com CC: stable@vger.kernel.org # 4.19+ Reviewed-by: Anand Jain Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba fs/btrfs/ioctl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: a4bb4f4d4388c75836446d9e1900ab4a700cfb929d49f4fada658873835237ba parent signature: f84d3aed133b35a10b6293ad7505ebdd5d429cf9bf61ac75b9d64eda210c9436 revisions tested: 24, total time: 9h9m25.264961021s (build: 5h58m15.935540727s, test: 2h58m54.139007654s) first good commit: b740d806166979488e798e41743aaec051f2443f btrfs: free btrfs_path before copying root refs to userspace recipients (to): ["anand.jain@oracle.com" "dsterba@suse.com" "josef@toxicpanda.com"] recipients (cc): []