ci2 starts bisection 2024-09-29 00:23:07.239022185 +0000 UTC m=+52656.283085395 bisecting cause commit starting from ad46e8f95e931e113cb98253daf6d443ac244cde building syzkaller on ba29ff75d05fca62258d71ffc063e70f0d7b8b09 ensuring issue is reproducible on original commit ad46e8f95e931e113cb98253daf6d443ac244cde testing commit ad46e8f95e931e113cb98253daf6d443ac244cde gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f43649f653744ac59afbb6ff28323c3049d4dbdaa60d27082f9fde1ced116b66 run #0: crashed: lost connection to test machine run #1: crashed: INFO: task hung in bch2_journal_reclaim_thread run #2: crashed: INFO: task hung in bch2_journal_reclaim_thread run #3: crashed: INFO: task hung in bch2_journal_reclaim_thread run #4: crashed: INFO: task hung in bch2_journal_reclaim_thread run #5: crashed: INFO: task hung in bch2_journal_reclaim_thread run #6: crashed: INFO: task hung in bch2_journal_reclaim_thread run #7: crashed: INFO: task hung in bch2_journal_reclaim_thread run #8: crashed: INFO: task hung in bch2_journal_reclaim_thread run #9: crashed: INFO: task hung in bch2_journal_reclaim_thread run #10: crashed: INFO: task hung in bch2_journal_reclaim_thread run #11: crashed: INFO: task hung in bch2_journal_reclaim_thread run #12: crashed: INFO: task hung in bch2_journal_reclaim_thread run #13: crashed: INFO: task hung in bch2_journal_reclaim_thread run #14: crashed: INFO: task hung in bch2_journal_reclaim_thread run #15: crashed: INFO: task hung in bch2_journal_reclaim_thread run #16: crashed: INFO: task hung in bch2_journal_reclaim_thread run #17: crashed: INFO: task hung in bch2_journal_reclaim_thread run #18: crashed: INFO: task hung in bch2_journal_reclaim_thread run #19: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit ad46e8f95e931e113cb98253daf6d443ac244cde gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d66868f114007d85a42be2f3754c17718a7b5746f11029ab671718b95e1229e4 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed kconfig minimization: base=4037 full=8191 leaves diff=2112 split chunks (needed=false): <2112> split chunk #0 of len 2112 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit ad46e8f95e931e113cb98253daf6d443ac244cde gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 586ca50274c5aa15584f46f6099342377eb3a005cd9ca7ea91725f65dfa8cae0 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit ad46e8f95e931e113cb98253daf6d443ac244cde gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b42b9100f2de94a02dfc21e912f9608244246f294bc679c3c83ecc0ac5aaf389 run #0: basic kernel testing failed: lost connection to test machine run #1: crashed: lost connection to test machine run #2: crashed: INFO: task hung in bch2_journal_reclaim_thread run #3: crashed: INFO: task hung in bch2_journal_reclaim_thread run #4: crashed: INFO: task hung in bch2_journal_reclaim_thread run #5: crashed: INFO: task hung in bch2_journal_reclaim_thread run #6: crashed: INFO: task hung in bch2_journal_reclaim_thread run #7: crashed: INFO: task hung in bch2_journal_reclaim_thread run #8: crashed: INFO: task hung in bch2_journal_reclaim_thread run #9: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ad46e8f95e931e113cb98253daf6d443ac244cde gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: beb394ea845ac433002d79708f06d827b76cded56d3cc222d80d3f6337b18c81 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit ad46e8f95e931e113cb98253daf6d443ac244cde gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 17e3ddb54661cf01e8a6d2fe1e2d2a67dd2cb70e6191e48aaeeedb1b6e2f2816 run #0: crashed: lost connection to test machine run #1: crashed: INFO: task hung in bch2_journal_reclaim_thread run #2: crashed: INFO: task hung in bch2_journal_reclaim_thread run #3: crashed: INFO: task hung in bch2_journal_reclaim_thread run #4: crashed: INFO: task hung in bch2_journal_reclaim_thread run #5: crashed: INFO: task hung in bch2_journal_reclaim_thread run #6: crashed: INFO: task hung in bch2_journal_reclaim_thread run #7: crashed: INFO: task hung in bch2_journal_reclaim_thread run #8: crashed: INFO: task hung in bch2_journal_reclaim_thread run #9: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit ad46e8f95e931e113cb98253daf6d443ac244cde gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dfd1849360987485b174773c654a2d1c6d552b27418d3838d7cd005f586f0ba8 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] the chunk can be dropped minimized to 423 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 ADDRESS_MASKING ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP ARCH_SUPPORTS_RT ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASUS_TF103C_DOCK ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_LEDS ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_COMMON_SPECTRAL ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCACHEFS_DEBUG BCACHEFS_ERASURE_CODING BCACHEFS_FS BCACHEFS_POSIX_ACL BCACHEFS_QUOTA BCACHEFS_SIX_OPTIMISTIC_SPIN BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_NF_EBTABLES_LEGACY BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_AUTOSUSPEND BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO BT_MSFTEXT BT_MTK BT_MTKSDIO BT_MTKUART BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_ESD_USB CAN_ETAS_ES58X CAN_F81604 CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_UCAN CAN_VCAN CAN_VXCAN CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MAX CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF 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_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD 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_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_LZ4 CRYPTO_LZ4HC 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_SM3_AVX_X86_64 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 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_XCTR CRYPTO_XXHASH CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_AUX_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_FBDEV_EMULATION DRM_GEM_SHMEM_HELPER DRM_GM12U320 DRM_GUD DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM ENCRYPTED_KEYS FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MMC MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS 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 [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 656e3974a183dc10fe9d6a2f4672e5c39cb8064b7df07041fe1ec57250b33c18 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] testing release v6.10 testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6dc7d2ba137c0d718007354a257c4c04b8e742b2c47c37de4f7f85fe46c0d9ff all runs: OK false negative chance: 0.000 # git bisect start 98f7e32f20d28ec452afb208f9cffc08448a2652 0c3836482481200ead7b416ca80c68a29cfdaabd Bisecting: 7076 revisions left to test after this (roughly 13 steps) [b3ce7a30847a54a7f96a35e609303d8afecd460b] Merge tag 'drm-next-2024-07-18' of https://gitlab.freedesktop.org/drm/kernel testing commit b3ce7a30847a54a7f96a35e609303d8afecd460b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3befa25443a01464c52fc06e06ca9d57cc13780874e4597a372d557623206da4 all runs: OK false negative chance: 0.000 # git bisect good b3ce7a30847a54a7f96a35e609303d8afecd460b Bisecting: 3385 revisions left to test after this (roughly 12 steps) [fbc90c042cd1dc7258ebfebe6d226017e5b5ac8c] Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit fbc90c042cd1dc7258ebfebe6d226017e5b5ac8c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 49d13f6119e107ec0ffeba1423060489b07b2d23d0a8a7b87483430fd4d142d0 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] # git bisect bad fbc90c042cd1dc7258ebfebe6d226017e5b5ac8c Bisecting: 1890 revisions left to test after this (roughly 11 steps) [04d17331ca33744e1426fdeee7ba5e975c4b2239] Merge tag 'usb-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb testing commit 04d17331ca33744e1426fdeee7ba5e975c4b2239 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6c95dbe02658aae37230f8c9e9ff09a57a8e66e821c72773c52b9a01b8563633 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] # git bisect bad 04d17331ca33744e1426fdeee7ba5e975c4b2239 Bisecting: 901 revisions left to test after this (roughly 10 steps) [ebcfbf02abfbecc144440ff797419cc95cb047fe] Merge tag 'iommu-updates-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux testing commit ebcfbf02abfbecc144440ff797419cc95cb047fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f46347c4024409c7fd484a36ee3fcbc0016f4efd2165a952ab24619a0d144308 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] # git bisect bad ebcfbf02abfbecc144440ff797419cc95cb047fe Bisecting: 451 revisions left to test after this (roughly 9 steps) [51ed42a8a135511f6d6f75b56e85e6586a06a93c] Merge tag 'ext4_for_linus-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 testing commit 51ed42a8a135511f6d6f75b56e85e6586a06a93c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b5b21e43f5e4e5ccd0c8a04b2db6de4583de4f6ac31939d5acbbf6e32b013be2 all runs: OK false negative chance: 0.000 # git bisect good 51ed42a8a135511f6d6f75b56e85e6586a06a93c Bisecting: 266 revisions left to test after this (roughly 8 steps) [720261cfc7329406a50c2a8536e0039b9dd9a4e5] Merge tag 'bcachefs-2024-07-18.2' of https://evilpiepirate.org/git/bcachefs testing commit 720261cfc7329406a50c2a8536e0039b9dd9a4e5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1b9f69e072df2d0ff0a9936c675be307d7646c882e54f90bb18a144cb76b5944 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] # git bisect bad 720261cfc7329406a50c2a8536e0039b9dd9a4e5 Bisecting: 92 revisions left to test after this (roughly 7 steps) [7aa7183e00d92539c61b3a01a7ebf676b0ecb91e] bcachefs: split out lru_format.h testing commit 7aa7183e00d92539c61b3a01a7ebf676b0ecb91e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 039b277c4c7962a16353723dc14226dbc7d7c1044a7af6b865389e1525faa292 all runs: OK false negative chance: 0.000 # git bisect good 7aa7183e00d92539c61b3a01a7ebf676b0ecb91e Bisecting: 46 revisions left to test after this (roughly 6 steps) [f8a3955083f5cc5d62257c6e1103f89f566d3a87] nfs: Properly initialize server->writeback testing commit f8a3955083f5cc5d62257c6e1103f89f566d3a87 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 23557c3d48bb3a3c5869cb013b9228fb555ef6beec5f89f1ab12d4fd13425736 all runs: OK false negative chance: 0.000 # git bisect good f8a3955083f5cc5d62257c6e1103f89f566d3a87 Bisecting: 23 revisions left to test after this (roughly 5 steps) [ee1b8dc17ac367f3fbea18fee4f7825eb11eb757] bcachefs: varint: Avoid left-shift of a negative value testing commit ee1b8dc17ac367f3fbea18fee4f7825eb11eb757 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7f2a90cfbf40a18f085b566c9248004f9d8de05bf174beb8594da5c31d27a86b all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] # git bisect bad ee1b8dc17ac367f3fbea18fee4f7825eb11eb757 Bisecting: 11 revisions left to test after this (roughly 4 steps) [ec8bf491a9008b8db97076ba7a6905edb4537bb9] bcachefs: Improve startup message testing commit ec8bf491a9008b8db97076ba7a6905edb4537bb9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 89f3ce515656b74e237b34ef634651a10b6060382eb53c967376093a87cd1ecc all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] # git bisect bad ec8bf491a9008b8db97076ba7a6905edb4537bb9 Bisecting: 5 revisions left to test after this (roughly 3 steps) [d2cb6b219d37284d78deeac1be8eb9d7670eebd1] bcachefs: Simplify btree key cache fill path testing commit d2cb6b219d37284d78deeac1be8eb9d7670eebd1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6dbac73e7339c31e9bda9d876fbe8c00c8c991e58f8c227724d45bebdeac51ab all runs: OK false negative chance: 0.000 # git bisect good d2cb6b219d37284d78deeac1be8eb9d7670eebd1 Bisecting: 2 revisions left to test after this (roughly 2 steps) [9d9d212e26399c04c567c232f500179cbdc8dc7e] bcachefs: bch2_extent_crc_unpacked_to_text() testing commit 9d9d212e26399c04c567c232f500179cbdc8dc7e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ca974563102cbc1b4bad55090b83fa16233cbbf5e3c0e2658159853a4b64b55 all runs: OK false negative chance: 0.000 # git bisect good 9d9d212e26399c04c567c232f500179cbdc8dc7e Bisecting: 0 revisions left to test after this (roughly 1 step) [a2cb8a6236daafbea5e3d9d720f5e55ba692817b] bcachefs: Self healing on read IO error testing commit a2cb8a6236daafbea5e3d9d720f5e55ba692817b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 245e5d3ff2df9084d1382a444a0b6e6628f956adb27b564cb2fdc8d5ea82bbe3 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] # git bisect bad a2cb8a6236daafbea5e3d9d720f5e55ba692817b Bisecting: 0 revisions left to test after this (roughly 0 steps) [b1d63b06e8398eb048dcc455acc628e6655d7499] bcachefs: Make read_only a mount option again, but hidden testing commit b1d63b06e8398eb048dcc455acc628e6655d7499 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7e3d4cd423ca5c0d0b4ca7a4a65d41fe81dbac6066d5aca161040a298672c1f8 all runs: crashed: INFO: task hung in bch2_journal_reclaim_thread representative crash: INFO: task hung in bch2_journal_reclaim_thread, types: [HANG] # git bisect bad b1d63b06e8398eb048dcc455acc628e6655d7499 b1d63b06e8398eb048dcc455acc628e6655d7499 is the first bad commit commit b1d63b06e8398eb048dcc455acc628e6655d7499 Author: Kent Overstreet Date: Fri Jun 28 18:10:47 2024 -0400 bcachefs: Make read_only a mount option again, but hidden fsck passes read_only as a mount option, and it's required for nochanges, which it also uses. Usually read_only is handled by the VFS, but we need to be able to handle it too; we just don't want to print it out twice, so mark it as a hidden option. Signed-off-by: Kent Overstreet fs/bcachefs/chardev.c | 13 ------------- fs/bcachefs/fs.c | 3 ++- fs/bcachefs/opts.h | 3 ++- 3 files changed, 4 insertions(+), 15 deletions(-) accumulated error probability: 0.00 culprit signature: 7e3d4cd423ca5c0d0b4ca7a4a65d41fe81dbac6066d5aca161040a298672c1f8 parent signature: 4ca974563102cbc1b4bad55090b83fa16233cbbf5e3c0e2658159853a4b64b55 revisions tested: 23, total time: 7h4m20.596237915s (build: 2h41m24.521433745s, test: 4h8m12.818116305s) first bad commit: b1d63b06e8398eb048dcc455acc628e6655d7499 bcachefs: Make read_only a mount option again, but hidden recipients (to): ["kent.overstreet@linux.dev"] recipients (cc): [] crash: INFO: task hung in bch2_journal_reclaim_thread INFO: task bch-reclaim/loo:3315 blocked for more than 143 seconds. Not tainted 6.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:bch-reclaim/loo state:D stack:14472 pid:3315 tgid:3315 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5407 [inline] __schedule+0x615/0x9a0 kernel/sched/core.c:6748 __schedule_loop kernel/sched/core.c:6825 [inline] schedule+0xac/0x140 kernel/sched/core.c:6840 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:6897 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x44a/0x970 kernel/locking/mutex.c:752 bch2_journal_reclaim_thread+0x74/0x160 fs/bcachefs/journal_reclaim.c:726 kthread+0xea/0x100 kernel/kthread.c:389 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff83d7f250 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff83d7f250 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff83d7f250 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x30/0x100 kernel/locking/lockdep.c:6614 2 locks held by getty/1479: #0: ffff8881023300a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x40 drivers/tty/tty_ldisc.c:243 #1: ffffc90002ba72f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x243/0x910 drivers/tty/n_tty.c:2211 4 locks held by syz-executor/2907: 1 lock held by bch-reclaim/loo/3315: #0: ffff88810eb4af28 (&j->reclaim_lock){....}-{3:3}, at: bch2_journal_reclaim_thread+0x74/0x160 fs/bcachefs/journal_reclaim.c:726 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x3e/0xe0 lib/dump_stack.c:114 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:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0x5db/0x600 kernel/hung_task.c:379 kthread+0xea/0x100 kernel/kthread.c:389 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6085 Comm: syz.0.997 Not tainted 6.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0033:0x7f1fc96418bb Code: cd 48 01 c1 49 39 4f 08 72 4c 8d 4d ff 85 ed 74 33 66 0f 1f 44 00 00 48 39 f0 72 1b 4d 8b 07 49 89 c1 49 29 f1 47 0f b6 0c 08 <45> 84 c9 74 08 45 88 0c 00 49 8b 47 10 48 83 c0 01 49 89 47 10 83 RSP: 002b:00007f1fca4b24a0 EFLAGS: 00000206 RAX: 0000000000113943 RBX: 00007f1fca4b2540 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007f1fca4b25e0 RBP: 0000000000000102 R08: 00007f1fc0400000 R09: 0000000000000000 R10: 0000000000000000 R11: 00007f1fca4b2550 R12: 0000000000000001 R13: 00007f1fc9804a40 R14: 0000000000000000 R15: 00007f1fca4b25e0 FS: 00007f1fca4b36c0 GS: 0000000000000000