ci2 starts bisection 2024-05-03 18:03:51.067940853 +0000 UTC m=+33627.990966166 bisecting cause commit starting from f03359bca01bf4372cf2c118cd9a987a5951b1c8 building syzkaller on dd26401e5ae3c1fe62beadcfb937ee5d06f304e2 ensuring issue is reproducible on original commit f03359bca01bf4372cf2c118cd9a987a5951b1c8 testing commit f03359bca01bf4372cf2c118cd9a987a5951b1c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cae0563d23dca341bd8933fe8068824af636c05363b0394b4a6338ef50d3ac34 all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit f03359bca01bf4372cf2c118cd9a987a5951b1c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dc8130188392bc01810fc9edaa479a9cbc4dcfd8d06d74e1192211e57262df31 all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed kconfig minimization: base=3971 full=8000 leaves diff=2012 split chunks (needed=false): <2012> split chunk #0 of len 2012 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit f03359bca01bf4372cf2c118cd9a987a5951b1c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3853339c2cf722c102ad8fa9f9ef30ef905f10102a8b18ae04c3ae987a8f560e all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit f03359bca01bf4372cf2c118cd9a987a5951b1c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6a3917658ece45b68f2eb00da5d81fb546dd4951350e8c6850749f98374854ca all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit f03359bca01bf4372cf2c118cd9a987a5951b1c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1002b8fa6d634a195c0f19211dcb15a359fc57d2d33108fbaa7c9688814d3ba4 all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit f03359bca01bf4372cf2c118cd9a987a5951b1c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d77fe9e8d090ad4b7527e204d83bd05adf2cf0b477a8e2bc39a08358e45140d8 all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit f03359bca01bf4372cf2c118cd9a987a5951b1c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 12c79fd6d5098367d56a318b30d40092592f3b25612d7a288cd924e7d85c6c16 all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] the chunk can be dropped minimized to 403 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_CONFIGURES_CPU_MITIGATIONS ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_CPU_PASID ARCH_WANT_PMD_MKWRITE 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 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_DEBUG_FS_ZONED BLK_DEV_BSGLIB 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_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_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_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO 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_RX_OFFLOAD 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 CLOSURES 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_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_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_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_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST 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_BOCHS 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_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 WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.8 v6.7 v6.6 v6.4 v6.2 v6.0 v5.18 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 31 release tags testing release v6.8 testing commit e8f897f4afef0031fe618a8e94127a0934896aba gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 238fd5b4e1f2487e2f12bf33bde1a0150e7a180aac9ee75bbe5ff31b1fbdba47 all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] testing release v6.7 testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c38067c65f7536293b3baa7345e6d44c037a71d16883cb33b9ac390bb83df84a run #0: basic kernel testing failed: lost connection to test machine run #1: crashed: INFO: task hung in __closure_sync run #2: crashed: INFO: task hung in __closure_sync run #3: crashed: INFO: task hung in __closure_sync run #4: crashed: INFO: task hung in __closure_sync run #5: crashed: INFO: task hung in __closure_sync run #6: crashed: INFO: task hung in __closure_sync run #7: crashed: INFO: task hung in __closure_sync run #8: crashed: INFO: task hung in __closure_sync run #9: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d762bbdcf886df8c7d499bc7e055d3bbbfd623e5c0b055bb4ae76c5680865303 all runs: OK false negative chance: 0.000 # git bisect start 0dd3ee31125508cd67f7e7172247f05b7fd1753a ffc253263a1375a65fa6c9f62a893e9767fbebfa Bisecting: 9251 revisions left to test after this (roughly 13 steps) [deefd5024f0772cf56052ace9a8c347dc70bcaf3] Merge tag 'vfio-v6.7-rc1' of https://github.com/awilliam/linux-vfio testing commit deefd5024f0772cf56052ace9a8c347dc70bcaf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cc960c59a0fb8149f49efb61c0b0b8d71490ce248279d2b2ccdb23f3fa257f79 all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] # git bisect bad deefd5024f0772cf56052ace9a8c347dc70bcaf3 Bisecting: 5291 revisions left to test after this (roughly 12 steps) [5a6a09e97199d6600d31383055f9d43fbbcbe86f] Merge tag 'cgroup-for-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup testing commit 5a6a09e97199d6600d31383055f9d43fbbcbe86f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee7de92787a354c1c6fe289391f9774902dfe09b417b718628d794b098b635c3 run #0: basic kernel testing failed: lost connection to test machine run #1: crashed: INFO: task hung in __closure_sync run #2: crashed: INFO: task hung in __closure_sync run #3: crashed: INFO: task hung in __closure_sync run #4: crashed: INFO: task hung in __closure_sync run #5: crashed: INFO: task hung in __closure_sync run #6: crashed: INFO: task hung in __closure_sync run #7: crashed: INFO: task hung in __closure_sync run #8: crashed: INFO: task hung in __closure_sync run #9: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] # git bisect bad 5a6a09e97199d6600d31383055f9d43fbbcbe86f Bisecting: 1930 revisions left to test after this (roughly 11 steps) [17047fbced563cf5abe5aa546f6a92af48900b69] bcachefs: Fix incorrectly freeing btree_path in alloc path testing commit 17047fbced563cf5abe5aa546f6a92af48900b69 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 17047fbced563cf5abe5aa546f6a92af48900b69: fs/bcachefs/buckets.c:1292:2: error: call to undeclared function '__WARN'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] # git bisect skip 17047fbced563cf5abe5aa546f6a92af48900b69 Bisecting: 1929 revisions left to test after this (roughly 11 steps) [49e401fa55ab128461f84a4eeb1f2d974f3281c1] bcachefs: Tracepoint improvements testing commit 49e401fa55ab128461f84a4eeb1f2d974f3281c1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 49e401fa55ab128461f84a4eeb1f2d974f3281c1: fs/bcachefs/buckets.c:1292:2: error: call to undeclared function '__WARN'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] # git bisect skip 49e401fa55ab128461f84a4eeb1f2d974f3281c1 Bisecting: 1929 revisions left to test after this (roughly 11 steps) [5eaa76d813d48a524a1ce040539048b851a0a20c] bcachefs: mark bch_inode_info and bkey_cached as reclaimable testing commit 5eaa76d813d48a524a1ce040539048b851a0a20c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 5eaa76d813d48a524a1ce040539048b851a0a20c: fs/bcachefs/opts.c:225:2: error: initializer element is not a compile-time constant # git bisect skip 5eaa76d813d48a524a1ce040539048b851a0a20c Bisecting: 1929 revisions left to test after this (roughly 11 steps) [a432b7c0cf420dbf2448c6bda6a6697afbb153d5] locking/lockref/x86: Enable ARCH_USE_CMPXCHG_LOCKREF for X86_CMPXCHG64 testing commit a432b7c0cf420dbf2448c6bda6a6697afbb153d5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4d14c6358b60fa83b32970a4d408798b92ec8e116e5915b8a1ca4eacbf24becb all runs: OK false negative chance: 0.000 # git bisect good a432b7c0cf420dbf2448c6bda6a6697afbb153d5 Bisecting: 1927 revisions left to test after this (roughly 11 steps) [86b74451931790eafa018021fe900faea3230189] bcachefs: Fix bch2_btree_trans_to_text() testing commit 86b74451931790eafa018021fe900faea3230189 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 86b74451931790eafa018021fe900faea3230189: fs/bcachefs/buckets.c:1292:2: error: call to undeclared function '__WARN'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] # git bisect skip 86b74451931790eafa018021fe900faea3230189 Bisecting: 1927 revisions left to test after this (roughly 11 steps) [d355c6f4f73060c8f3eba95b9ae72929669f7516] bcachefs: for_each_btree_node() now returns errors directly testing commit d355c6f4f73060c8f3eba95b9ae72929669f7516 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building d355c6f4f73060c8f3eba95b9ae72929669f7516: fs/bcachefs/buckets.c:1329:2: error: call to undeclared function '__WARN'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] # git bisect skip d355c6f4f73060c8f3eba95b9ae72929669f7516 Bisecting: 1927 revisions left to test after this (roughly 11 steps) [c04d905f6c7c41f137de7e4a9279e5c938eb19ef] vfs: Convert BUG_ON to WARN_ON_ONCE in open_last_lookups testing commit c04d905f6c7c41f137de7e4a9279e5c938eb19ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b10a4e3ed2e64d6f0ce2162f06574fe0b6863788f3fc0d0525919fe04e880789 all runs: OK false negative chance: 0.000 # git bisect good c04d905f6c7c41f137de7e4a9279e5c938eb19ef Bisecting: 1915 revisions left to test after this (roughly 11 steps) [549d173c1bd9b58c2ad41217522462e012a6545f] bcachefs: EINTR -> BCH_ERR_transaction_restart testing commit 549d173c1bd9b58c2ad41217522462e012a6545f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 549d173c1bd9b58c2ad41217522462e012a6545f: fs/bcachefs/buckets.c:1292:2: error: call to undeclared function '__WARN'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] # git bisect skip 549d173c1bd9b58c2ad41217522462e012a6545f Bisecting: 1915 revisions left to test after this (roughly 11 steps) [e6375481c9efb765687cc4d6c1396b335c3d5ef1] bcachefs: Improve bch2_write_points_to_text() testing commit e6375481c9efb765687cc4d6c1396b335c3d5ef1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8c37eba0c190e2883fcd2e16abd6bb7aa6cb74151643882bd9aed221ef6b73a all runs: OK false negative chance: 0.000 # git bisect good e6375481c9efb765687cc4d6c1396b335c3d5ef1 Bisecting: 573 revisions left to test after this (roughly 9 steps) [9e87705289667a6c5185c619ea32f3d39314eb1b] Merge tag 'bcachefs-2023-10-30' of https://evilpiepirate.org/git/bcachefs testing commit 9e87705289667a6c5185c619ea32f3d39314eb1b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c90681a96ff9d6a7f3288b0113dbefbfeb4322258fbe35cf2ac296e067b78d9a all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] # git bisect bad 9e87705289667a6c5185c619ea32f3d39314eb1b Bisecting: 293 revisions left to test after this (roughly 8 steps) [8b16da681eb0c9b9cb2f9abd0dade67559cfb48d] Merge tag 'nfsd-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux testing commit 8b16da681eb0c9b9cb2f9abd0dade67559cfb48d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8e3ff8284c0f9933561af26ea2703bf5d5c7e48527058d09be530ee2bb0780d5 all runs: OK false negative chance: 0.000 # git bisect good 8b16da681eb0c9b9cb2f9abd0dade67559cfb48d Bisecting: 146 revisions left to test after this (roughly 7 steps) [5ca1949b79f3b02215f1c075bf178fceeadda352] btrfs: remove pointless barrier from btrfs_sync_file() testing commit 5ca1949b79f3b02215f1c075bf178fceeadda352 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f15971e32b60626212f70c478a2155811b5bcfb33ca6ead2f269a144a0ae1691 all runs: OK false negative chance: 0.000 # git bisect good 5ca1949b79f3b02215f1c075bf178fceeadda352 Bisecting: 72 revisions left to test after this (roughly 6 steps) [301e0237cadfc7c446e16eab6df38073ade3631d] bcachefs: chardev: return -EFAULT if copy_to_user() fails testing commit 301e0237cadfc7c446e16eab6df38073ade3631d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e206c23c6620739d5b5aa7edc3d5762f2946fd74392bd086fca472338dc2c9aa all runs: OK false negative chance: 0.000 # git bisect good 301e0237cadfc7c446e16eab6df38073ade3631d Bisecting: 36 revisions left to test after this (roughly 5 steps) [3c40841cdcf374d661ff14e7a707681342565166] bcachefs: fix crc32c checksum merge byte order problem testing commit 3c40841cdcf374d661ff14e7a707681342565166 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c3cc16312f6f118b8524df6c0691bf2382c857563a58b8d667108ef4ec62f567 all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] # git bisect bad 3c40841cdcf374d661ff14e7a707681342565166 Bisecting: 17 revisions left to test after this (roughly 4 steps) [d04fdf5c1017b9ebfd45efbcc2c8cd95f7f4e30d] bcachefs: snapshots: Use kvfree_rcu_mightsleep() testing commit d04fdf5c1017b9ebfd45efbcc2c8cd95f7f4e30d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ac47dd856414434913d8ce2c6c3e5aa4f0b7e22d37ed9c33e964ab5814bbcce all runs: OK false negative chance: 0.000 # git bisect good d04fdf5c1017b9ebfd45efbcc2c8cd95f7f4e30d Bisecting: 8 revisions left to test after this (roughly 3 steps) [793a06d984511593c6375d219b38cc84f5a71aff] bcachefs: Fixes for building in userspace testing commit 793a06d984511593c6375d219b38cc84f5a71aff gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 45812a81b1f9eb679f5dd5dfb70f60c931887b094b5240e38dc38c065ba53feb all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] # git bisect bad 793a06d984511593c6375d219b38cc84f5a71aff Bisecting: 3 revisions left to test after this (roughly 2 steps) [82142a5541063addd15c84fcda890675035df8aa] bcachefs: Fix a null ptr deref in bch2_get_alloc_in_memory_pos() testing commit 82142a5541063addd15c84fcda890675035df8aa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b30dee1deb8a55b6d4b0d7bc6dd27697a7ea7186b44683ed402600a4755eb52d all runs: OK false negative chance: 0.000 # git bisect good 82142a5541063addd15c84fcda890675035df8aa Bisecting: 1 revision left to test after this (roughly 1 step) [b560e32ef78f8e748b74a27009ee417b9072dd88] bcachefs: Always check for invalid bkeys in main commit path testing commit b560e32ef78f8e748b74a27009ee417b9072dd88 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5165770addc023745cf3f5012050bea912e3aafc21a970353bb92e40b4a98248 all runs: OK false negative chance: 0.000 # git bisect good b560e32ef78f8e748b74a27009ee417b9072dd88 Bisecting: 0 revisions left to test after this (roughly 0 steps) [03ef80b469d5d83530ce1ce15be78a40e5300f9b] bcachefs: Ignore unknown mount options testing commit 03ef80b469d5d83530ce1ce15be78a40e5300f9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aa7e6888d22ffa2683c26c3e7cf3ddce441023f111d9c55f0f77746d0e6b57a1 all runs: crashed: INFO: task hung in __closure_sync representative crash: INFO: task hung in __closure_sync, types: [HANG] # git bisect bad 03ef80b469d5d83530ce1ce15be78a40e5300f9b 03ef80b469d5d83530ce1ce15be78a40e5300f9b is the first bad commit commit 03ef80b469d5d83530ce1ce15be78a40e5300f9b Author: Kent Overstreet Date: Sat Sep 23 18:41:51 2023 -0400 bcachefs: Ignore unknown mount options This makes mount option handling consistent with other filesystems - options may be handled at different layers, so an option we don't know about might not be intended for us. Signed-off-by: Kent Overstreet fs/bcachefs/opts.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: aa7e6888d22ffa2683c26c3e7cf3ddce441023f111d9c55f0f77746d0e6b57a1 parent signature: 5165770addc023745cf3f5012050bea912e3aafc21a970353bb92e40b4a98248 revisions tested: 25, total time: 6h24m19.946235865s (build: 2h25m51.214427901s, test: 3h46m31.986693565s) first bad commit: 03ef80b469d5d83530ce1ce15be78a40e5300f9b bcachefs: Ignore unknown mount options recipients (to): ["kent.overstreet@linux.dev"] recipients (cc): [] crash: INFO: task hung in __closure_sync INFO: task syz-executor.0:2357 blocked for more than 143 seconds. Not tainted 6.6.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:9696 pid:2357 ppid:1954 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x68b/0x960 kernel/sched/core.c:6695 schedule+0x68/0xc0 kernel/sched/core.c:6771 __closure_sync+0x6b/0xa0 lib/closure.c:129 closure_sync include/linux/closure.h:189 [inline] __bch2_write+0x1521/0x1650 fs/bcachefs/io_write.c:1489 bch2_write+0x248/0x480 fs/bcachefs/io_write.c:1611 closure_queue include/linux/closure.h:254 [inline] closure_call include/linux/closure.h:379 [inline] bch2_dio_write_loop fs/bcachefs/fs-io-direct.c:528 [inline] bch2_direct_write+0x769/0xc80 fs/bcachefs/fs-io-direct.c:646 bch2_write_iter+0x9f/0x10b0 fs/bcachefs/fs-io-buffered.c:1048 call_write_iter include/linux/fs.h:1985 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x35d/0x430 fs/read_write.c:584 ksys_write+0x70/0xe0 fs/read_write.c:637 do_syscall_64+0x46/0xc0 entry_SYSCALL_64_after_hwframe+0x6f/0xd9 RIP: 0033:0x7f7fb207dd29 RSP: 002b:00007f7fb2dee0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f7fb21abf80 RCX: 00007f7fb207dd29 RDX: 00000000175d9003 RSI: 0000000020000200 RDI: 0000000000000004 RBP: 00007f7fb20ca47e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f7fb21abf80 R15: 00007fff475f5ca8 Showing all locks held in the system: 1 lock held by khungtaskd/28: #0: ffffffff8397ec40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 include/trace/events/initcall.h:48 2 locks held by getty/1389: #0: ffff888107e740a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x40 drivers/tty/tty_ldisc.c:243 #1: ffffc90002c732f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x218/0x8f0 drivers/tty/n_tty.c:2206 3 locks held by syz-executor.0/2357: #0: ffff88810ee470c8 (&f->f_pos_lock){....}-{3:3}, at: __fdget_pos+0xa1/0xc0 fs/file.c:1064 #1: ffff8881093983e8 (sb_writers#14){....}-{0:0}, at: ksys_write+0x70/0xe0 fs/read_write.c:637 #2: ffff8881790c8820 (&sb->s_type->i_mutex_key#18){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline] #2: ffff8881790c8820 (&sb->s_type->i_mutex_key#18){....}-{3:3}, at: bch2_direct_write+0x66/0xc80 fs/bcachefs/fs-io-direct.c:592 1 lock held by bch-copygc/loop/2365: 2 locks held by syz-executor.0/4537: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x146/0x160 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x8e/0x140 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0x496/0x4c0 kernel/hung_task.c:379 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:304 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2365 Comm: bch-copygc/loop Not tainted 6.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:btree_path_node fs/bcachefs/btree_iter.h:39 [inline] RIP: 0010:__btree_path_up_until_good_node+0x46/0x300 fs/bcachefs/btree_iter.c:1065 Code: c1 ed 0a 83 e5 07 48 8d 46 20 48 89 44 24 08 83 fd 03 0f 87 54 01 00 00 41 89 ee 01 ed 4b 8d 04 76 48 8b 4c 24 08 48 8d 1c c1 <48> 8b 03 48 85 c0 0f 84 33 01 00 00 41 89 ed 48 3d 00 f0 ff ff 0f RSP: 0018:ffffc9000272b648 EFLAGS: 00000297 RAX: 0000000000000000 RBX: ffff8881092a4220 RCX: 0000000000000004 RDX: 00000000000000cf RSI: 0000000000000000 RDI: ffff8881092a4000 RBP: 0000000000000006 R08: ffff8881092a4000 R09: ffffc9000272b978 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8881092a41b8 R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7535ba8000 CR3: 0000000101f6c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btree_path_up_until_good_node fs/bcachefs/btree_iter.c:1089 [inline] bch2_btree_path_traverse_one+0x908/0x9e0 fs/bcachefs/btree_iter.c:1129 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:215 [inline] __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:1973 [inline] bch2_btree_iter_peek_upto+0x2ec/0xea0 fs/bcachefs/btree_iter.c:2077 bch2_btree_iter_peek_upto_type fs/bcachefs/btree_iter.h:624 [inline] bch2_copygc_get_buckets fs/bcachefs/movinggc.c:162 [inline] bch2_copygc+0x15f/0xf20 fs/bcachefs/movinggc.c:205 bch2_copygc_thread+0x1ae/0x450 fs/bcachefs/movinggc.c:358 kthread+0xe9/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:304