ci2 starts bisection 2025-06-23 08:20:17.865518823 +0000 UTC m=+195934.208885151 bisecting cause commit starting from b67ec639010f7d2ce2b467cef36f3e5e785d8d50 building syzkaller on d6cdfb8a765c64793bc63cf630e68fbdd0ee0974 ensuring issue is reproducible on original commit b67ec639010f7d2ce2b467cef36f3e5e785d8d50 testing commit b67ec639010f7d2ce2b467cef36f3e5e785d8d50 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: ec064da2512cf05496b6a9f240d867da981ae90e23a74b124e3908b142c96ef3 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bch2_readahead run #3: crashed: INFO: task hung in bchfs_fpunch run #4: crashed: INFO: task hung in bchfs_fpunch run #5: crashed: INFO: task hung in bchfs_fpunch run #6: crashed: INFO: task hung in bchfs_fpunch run #7: crashed: INFO: task hung in bchfs_fpunch run #8: crashed: INFO: task hung in bchfs_fpunch run #9: crashed: INFO: task hung in bchfs_fpunch run #10: crashed: INFO: task hung in bchfs_fpunch run #11: crashed: INFO: task hung in bchfs_fpunch run #12: crashed: INFO: task hung in bchfs_fpunch run #13: crashed: INFO: task hung in bch2_readahead run #14: crashed: INFO: task hung in bchfs_fpunch run #15: crashed: INFO: task hung in bchfs_fpunch run #16: crashed: INFO: task hung in bchfs_fpunch run #17: crashed: INFO: task hung in bchfs_fpunch run #18: crashed: INFO: task hung in bchfs_fpunch run #19: crashed: INFO: task hung in bchfs_fpunch representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit b67ec639010f7d2ce2b467cef36f3e5e785d8d50 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: c1ca0c22aafb54cd12ba6486b1f844e046b32e5e8753c38a1ccbe1f3a35ca6c5 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: OK run #5: crashed: INFO: task hung in bchfs_fpunch run #6: OK run #7: OK run #8: OK run #9: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed kconfig minimization: base=4088 full=8356 leaves diff=2126 split chunks (needed=false): <2126> split chunk #0 of len 2126 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit b67ec639010f7d2ce2b467cef36f3e5e785d8d50 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 1a3eec04238a1eaf7b16f4e8759b35613fd015f35c2866570bf1a39c340e4b39 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 b67ec639010f7d2ce2b467cef36f3e5e785d8d50 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 5cc0d15635f315cd9721839010dbb1ae38855b625c331e6e2207ac1cce72a8e1 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bch2_readahead run #4: crashed: INFO: task hung in bchfs_fpunch run #5: crashed: INFO: task hung in bchfs_fpunch run #6: OK run #7: OK run #8: OK run #9: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit b67ec639010f7d2ce2b467cef36f3e5e785d8d50 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: a72cb0964d79699f8266236c6bb5264c7acc291cebf029449cbab12f0af4debd run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: crashed: INFO: task hung in bchfs_fpunch run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit b67ec639010f7d2ce2b467cef36f3e5e785d8d50 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 377011bc4e27af712b05089425017465d44947d190dfc4ba58637b959df262c7 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bch2_readahead run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit b67ec639010f7d2ce2b467cef36f3e5e785d8d50 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 90b7f855324da259a0260fa7fb89dc3a3145b2eeec0f0a95572b775b2751c66e run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: crashed: INFO: task hung in bchfs_fpunch run #5: crashed: INFO: task hung in bchfs_fpunch run #6: crashed: INFO: task hung in bchfs_fpunch run #7: crashed: INFO: task hung in bchfs_fpunch run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] the chunk can be dropped minimized to 852 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_NHLT ACPI_PLATFORM_PROFILE ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_CRC32 ARCH_HAS_CRC64 ARCH_HAS_CRC_T10DIF ARCH_HAS_USER_SHADOW_STACK ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP 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_HIDP 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 BXT_WC_PMIC_OPREGION 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 CRC64 CRC64_ARCH CRC8 CRC_ITU_T CRC_T10DIF CRC_T10DIF_ARCH CRYPTO_842 CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32C CRYPTO_CRYPTD CRYPTO_CTS CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_HKDF CRYPTO_KDF800108_CTR CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_KRB5 CRYPTO_KRB5ENC CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_CURVE25519_INTERNAL CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LIB_SM3 CRYPTO_LRW CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEBUG_VFS DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DLM 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_CLIENT DRM_CLIENT_DEFAULT_FBDEV DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_CLIENT_SETUP DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_DSC_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HELPER DRM_FBDEV_EMULATION DVB_CORE ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_DRAGONRISE HID_NVIDIA_SHIELD HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_STEAM HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_RTRS_CLIENT INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IOSCHED_BFQ IP_SCTP L2TP LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_MT6370 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_CLS_U32 NET_IPGRE NET_IPGRE_DEMUX NET_SCH_DEFAULT NFS_V4_1 NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVIDIA_SHIELD_FF NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PAGE_IDLE_FLAG PAGE_REPORTING PAHOLE_HAS_BTF_TAG PAHOLE_HAS_LANG_EXCLUDE PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PLAYSTATION_FF PLFXLC PMIC_OPREGION PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_1 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PROC_CHILDREN PSAMPLE PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGMAP_SPI REGULATOR REGULATOR_FIXED_VOLTAGE REGULATOR_TWL4030 RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 RMI4_F3A ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCREEN_INFO SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SECURITY_SMACK_NETFILTER SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_GIGABYTE_WATERFORCE SENSORS_NZXT_KRAKEN2 SENSORS_NZXT_SMART2 SENSORS_POWERZ SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SKB_DECRYPTED SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMB_SERVER SMC SMC_DIAG SMSC_PHY SMS_SDIO_DRV SMS_SIANO_DEBUGFS SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_FAST_LOOKUP SND_CTL_LED SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HDA_SCODEC_COMPONENT SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_ELD SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SOC SND_SOC_I2C_AND_SPI SND_SOC_SDCA_OPTIONAL SND_SUPPORT_OLD_API SND_TIMER SND_UMP SND_UMP_LEGACY_RAWMIDI SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_MIDI_V2 SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUNDWIRE SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_LJCA SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_MULTI SQUASHFS_DECOMP_MULTI SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STEAM_FF STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SURFACE_AGGREGATOR SURFACE_AGGREGATOR_BUS SURFACE_AGGREGATOR_REGISTRY SURFACE_HID SURFACE_HID_CORE SURFACE_KBD SW_SYNC SYSFB SYSFS_SYSCALL SYSV68_PARTITION TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEE TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_DEVICE TLS_TOE TMPFS_QUOTA TOOLS_SUPPORT_RELR TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TRUSTED_KEYS TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_ANX7411 TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_FSA4480 TYPEC_MUX_GPIO_SBU TYPEC_MUX_INTEL_PMC TYPEC_MUX_NB7VPQ904M TYPEC_MUX_PTN36502 TYPEC_MUX_WCD939X_USBSS TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_RT1719 TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPCI_MT6370 TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE TYPEC_WUSB3801 UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UCSI_CCG UCSI_STM32G0 UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_DWC2 USB_GADGET USB_LJCA USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_PHY USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VLAN_8021Q VXLAN WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WLAN WLAN_VENDOR_ATH WLAN_VENDOR_PURELIFI ZONE_DEVICE] disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed picked [v6.15 v6.14 v6.13 v6.11 v6.9 v6.7 v6.5 v6.3 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 38 release tags testing release v6.15 testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 8f63ec4819e0973be5aa9555d53907b5484437f23756bdd958ca6761500b62fe all runs: OK false negative chance: 0.000 # git bisect start b67ec639010f7d2ce2b467cef36f3e5e785d8d50 0ff41df1cb268fc69e703a08a57ee14ae967d0ca Bisecting: 6809 revisions left to test after this (roughly 13 steps) [1b98f357dadd6ea613a435fbaef1a5dd7b35fd21] Merge tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 1b98f357dadd6ea613a435fbaef1a5dd7b35fd21 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 1dcc12a26a4eca1ce1fd33aa5c128413b1bfb5171da7ed0012c2ce519a442081 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad 1b98f357dadd6ea613a435fbaef1a5dd7b35fd21 Bisecting: 3652 revisions left to test after this (roughly 12 steps) [a61e26038143727d9b0f1bc01b0370f77f2ad7e4] Merge tag 'media/v6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media testing commit a61e26038143727d9b0f1bc01b0370f77f2ad7e4 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 425259384fc44714086e0c093674b2e85974fbe6c020c3561e27acb0d16df791 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad a61e26038143727d9b0f1bc01b0370f77f2ad7e4 Bisecting: 1981 revisions left to test after this (roughly 11 steps) [0c1494015fea0935fbf6cd9d99c008fcbe1e4165] Merge tag 'core-entry-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 0c1494015fea0935fbf6cd9d99c008fcbe1e4165 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 60a72a9e6c8e3f41b57bfb8220921a8447486739d64c1da1edf7de3940083dd2 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: crashed: INFO: task hung in bchfs_fpunch run #5: crashed: INFO: task hung in bchfs_fpunch run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad 0c1494015fea0935fbf6cd9d99c008fcbe1e4165 Bisecting: 1061 revisions left to test after this (roughly 10 steps) [15d90a5e5524532b7456a24f4626cf28c1629c4c] Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux testing commit 15d90a5e5524532b7456a24f4626cf28c1629c4c gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 2521a8a59b88189109b6e4895a4c40c9de547f9798f1379e13b10e97c989dcb8 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: crashed: INFO: task hung in bchfs_fpunch run #5: OK run #6: crashed: INFO: task hung in bchfs_fpunch run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad 15d90a5e5524532b7456a24f4626cf28c1629c4c Bisecting: 507 revisions left to test after this (roughly 9 steps) [49fffac983ac52aea0ab94914be3f56bcf92d5dc] Merge tag 'for-6.16/io_uring-20250523' of git://git.kernel.dk/linux testing commit 49fffac983ac52aea0ab94914be3f56bcf92d5dc gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: d532b3e92e21c5b436341214a4cbd908d219c349acd85fd49e0b8c91a261f7a3 all runs: OK false negative chance: 0.003 # git bisect good 49fffac983ac52aea0ab94914be3f56bcf92d5dc Bisecting: 276 revisions left to test after this (roughly 8 steps) [8fdabcd9c01d9ac585d8109a921e0734a69479fb] Merge tag 'gfs2-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 testing commit 8fdabcd9c01d9ac585d8109a921e0734a69479fb gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 7e46e8071a64e859bd458bfac753c89f9eed2a6cb6206e7fa279f8154655c614 all runs: OK false negative chance: 0.003 # git bisect good 8fdabcd9c01d9ac585d8109a921e0734a69479fb Bisecting: 138 revisions left to test after this (roughly 7 steps) [3b7b0c3996b570f9c305c6f3df475a719920d65c] bcachefs: print label correctly in sb_member_to_text() testing commit 3b7b0c3996b570f9c305c6f3df475a719920d65c gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 6e6f6f8c5f1b6b15edb54d8b64c125d55a2be5f8b44ef1f0398531f3a3d5ef38 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad 3b7b0c3996b570f9c305c6f3df475a719920d65c Bisecting: 68 revisions left to test after this (roughly 6 steps) [09279bba72f809eeb1f02d39a462e8e1d06fa32a] bcachefs: Kill dead code testing commit 09279bba72f809eeb1f02d39a462e8e1d06fa32a gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: a7132ef67befdcdee6fb58428ae1f461790aff0779249601c9ff232cbf689d50 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20 # git bisect skip 09279bba72f809eeb1f02d39a462e8e1d06fa32a Bisecting: 68 revisions left to test after this (roughly 6 steps) [2085325171f2f2d33a94101e58266f325c286e95] bcachefs: Simplify bch2_count_fsck_err() testing commit 2085325171f2f2d33a94101e58266f325c286e95 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 4d2083dbf60b3b476ac10b0b223cfe69a03fca1891c8701789723c6989351c25 all runs: OK false negative chance: 0.006 # git bisect good 2085325171f2f2d33a94101e58266f325c286e95 Bisecting: 42 revisions left to test after this (roughly 6 steps) [c21f41f6905be4fc5059a10a5bba94105ba87269] bcachefs: bch2_dirent_to_text() shows casefolded dirents testing commit c21f41f6905be4fc5059a10a5bba94105ba87269 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 68c2c2618ef159341397e12e49010391f5eb48377b84cdf27d4fdad1051b20e8 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: crashed: INFO: task hung in bchfs_fpunch run #5: crashed: INFO: task hung in bchfs_fpunch run #6: crashed: INFO: task hung in bchfs_fpunch run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad c21f41f6905be4fc5059a10a5bba94105ba87269 Bisecting: 21 revisions left to test after this (roughly 5 steps) [9fa4a8a3bdb14c1a36ff439643e00ca416e04b66] bcachefs: for_each_online_member_rcu() testing commit 9fa4a8a3bdb14c1a36ff439643e00ca416e04b66 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: c585b0f86a1b44dcd0756082a9e65532d6ec5bb52bbf5d404f68adb4cd9f969e all runs: OK false negative chance: 0.006 # git bisect good 9fa4a8a3bdb14c1a36ff439643e00ca416e04b66 Bisecting: 10 revisions left to test after this (roughly 4 steps) [dbc18c97f1f0d336e3c4f6bb50f34c5255216995] bcachefs: print_string_as_lines: avoid printing empty line testing commit dbc18c97f1f0d336e3c4f6bb50f34c5255216995 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 0bc05887d30f509630458f8bec174c252eeeb364fa1096c4820b7e82b1f6954a run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: OK run #3: crashed: INFO: task hung in bchfs_fpunch run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad dbc18c97f1f0d336e3c4f6bb50f34c5255216995 Bisecting: 4 revisions left to test after this (roughly 3 steps) [5f0de475f967a094bd596913ffbe9ad9b33b4e3a] bcachefs: bch2_bio_to_text() testing commit 5f0de475f967a094bd596913ffbe9ad9b33b4e3a gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: ecdf2b59651fba968172ae613ead7cf33ef78c256a9a4faa4622d3a0f25a1174 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bch2_readahead run #4: crashed: INFO: task hung in bch2_readahead run #5: crashed: INFO: task hung in bchfs_fpunch run #6: crashed: INFO: task hung in bchfs_fpunch run #7: crashed: INFO: task hung in bchfs_fpunch run #8: crashed: INFO: task hung in bchfs_fpunch run #9: crashed: INFO: task hung in bchfs_fpunch run #10: crashed: INFO: task hung in bchfs_fpunch run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad 5f0de475f967a094bd596913ffbe9ad9b33b4e3a Bisecting: 2 revisions left to test after this (roughly 2 steps) [f5241e41272858b983da45ac7f8a6ad58c4ba71f] bcachefs: enumerated_ref.c testing commit f5241e41272858b983da45ac7f8a6ad58c4ba71f gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: d75a985aca3435f64cceecbaf3901eb5d0ffcb3aa3edae74168f3d8858c0b47e run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bchfs_fpunch run #4: crashed: INFO: task hung in bchfs_fpunch run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad f5241e41272858b983da45ac7f8a6ad58c4ba71f Bisecting: 0 revisions left to test after this (roughly 1 step) [6d67de1079993e09e7a867a6936a8163ece98792] bcachefs: for_each_rw_member_rcu() testing commit 6d67de1079993e09e7a867a6936a8163ece98792 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 9506cac1e96d1dc13400c287f30df4acd8ebaca31ccb697385c0426d7a35c0dc run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: crashed: INFO: task hung in bch2_readahead run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad 6d67de1079993e09e7a867a6936a8163ece98792 Bisecting: 0 revisions left to test after this (roughly 0 steps) [e14e06e91dadcd1c65f08ba5a02716d3e855fc74] bcachefs: __bch2_fs_read_write() no longer depends on io_ref testing commit e14e06e91dadcd1c65f08ba5a02716d3e855fc74 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 2d850ccab9d9d47f8be887ffcc85e0796ee08a8c207240f9b6884ef6888e4599 run #0: crashed: INFO: task hung in bchfs_fpunch run #1: crashed: INFO: task hung in bchfs_fpunch run #2: crashed: INFO: task hung in bchfs_fpunch run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in bchfs_fpunch, types: [HANG] # git bisect bad e14e06e91dadcd1c65f08ba5a02716d3e855fc74 e14e06e91dadcd1c65f08ba5a02716d3e855fc74 is the first bad commit commit e14e06e91dadcd1c65f08ba5a02716d3e855fc74 Author: Kent Overstreet Date: Sun Apr 20 11:27:18 2025 -0400 bcachefs: __bch2_fs_read_write() no longer depends on io_ref Signed-off-by: Kent Overstreet fs/bcachefs/super.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) accumulated error probability: 0.02 culprit signature: 2d850ccab9d9d47f8be887ffcc85e0796ee08a8c207240f9b6884ef6888e4599 parent signature: c585b0f86a1b44dcd0756082a9e65532d6ec5bb52bbf5d404f68adb4cd9f969e reproducer is flaky (0.17 repro chance estimate) revisions tested: 24, total time: 8h6m30.506419184s (build: 2h21m22.310076535s, test: 5h20m16.09974383s) first bad commit: e14e06e91dadcd1c65f08ba5a02716d3e855fc74 bcachefs: __bch2_fs_read_write() no longer depends on io_ref recipients (to): ["kent.overstreet@linux.dev"] recipients (cc): [] crash: INFO: task hung in bchfs_fpunch INFO: task syz.1.71:6160 blocked for more than 143 seconds. Not tainted 6.15.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.71 state:D stack:13632 pid:6160 tgid:6124 ppid:3691 task_flags:0x400140 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x6a6/0x1540 kernel/sched/core.c:6767 __schedule_loop kernel/sched/core.c:6845 [inline] schedule+0xac/0x140 kernel/sched/core.c:6860 io_schedule+0x3f/0x60 kernel/sched/core.c:7742 folio_wait_bit_common+0x1fa/0x3a0 mm/filemap.c:1317 folio_lock include/linux/pagemap.h:1137 [inline] truncate_inode_pages_range+0x3ac/0x540 mm/truncate.c:429 bchfs_fpunch+0xad/0x200 fs/bcachefs/fs-io.c:567 bch2_fallocate_dispatch+0xeb/0x190 fs/bcachefs/fs-io.c:835 vfs_fallocate+0x19c/0x1c0 fs/open.c:338 ksys_fallocate fs/open.c:362 [inline] __do_sys_fallocate fs/open.c:367 [inline] __se_sys_fallocate fs/open.c:365 [inline] __x64_sys_fallocate+0x44/0x70 fs/open.c:365 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8f/0x180 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb264f8e929 RSP: 002b:00007fb2641fe038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007fb2651b6080 RCX: 00007fb264f8e929 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000005 RBP: 00007fb265010b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000404042bbe R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb2651b6080 R15: 00007ffe21c59cc8 INFO: task syz.1.71:6162 blocked for more than 143 seconds. Not tainted 6.15.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.71 state:D stack:13736 pid:6162 tgid:6124 ppid:3691 task_flags:0x440040 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x6a6/0x1540 kernel/sched/core.c:6767 __schedule_loop kernel/sched/core.c:6845 [inline] schedule+0xac/0x140 kernel/sched/core.c:6860 __bch2_two_state_lock+0xa2/0x100 fs/bcachefs/two_state_shared_lock.c:7 bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:55 [inline] bch2_readahead+0x2d6/0x5a0 fs/bcachefs/fs-io-buffered.c:296 read_pages+0x94/0x190 mm/readahead.c:160 page_cache_ra_order+0x225/0x350 mm/readahead.c:515 filemap_get_pages+0x166/0x820 mm/filemap.c:2591 filemap_splice_read+0x1b2/0x3b0 mm/filemap.c:2981 do_splice_read fs/splice.c:979 [inline] splice_direct_to_actor+0xe8/0x2e0 fs/splice.c:1083 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x6f/0xb0 fs/splice.c:1227 do_sendfile+0x21b/0x320 fs/read_write.c:1368 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8f/0x180 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb264f8e929 RSP: 002b:00007fb2641dd038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fb2651b6160 RCX: 00007fb264f8e929 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 00007fb265010b39 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000e3aa6ea R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fb2651b6160 R15: 00007ffe21c59cc8 Showing all locks held in the system: 7 locks held by kworker/u8:0/12: 1 lock held by khungtaskd/31: #0: ffffffff84786770 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff84786770 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff84786770 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2e/0x100 kernel/locking/lockdep.c:6764 3 locks held by kworker/u9:0/52: #0: ffff88813ba2cd18 (&rq->__lock){....}-{2:2}, at: raw_spin_rq_lock_nested+0x24/0x100 kernel/sched/core.c:605 #1: ffff88813ba17a48 (&per_cpu_ptr(group->pcpu, cpu)->seq){....}-{0:0}, at: psi_task_switch+0x226/0x280 kernel/sched/psi.c:987 #2: ffff88812e0ca670 (&j->lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #2: ffff88812e0ca670 (&j->lock){....}-{2:2}, at: journal_write_done+0x131/0x4e0 fs/bcachefs/journal_io.c:1659 6 locks held by kworker/u8:3/175: #0: ffff8881154b1548 ((wq_completion)btree_update#9){....}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline] #0: ffff8881154b1548 ((wq_completion)btree_update#9){....}-{0:0}, at: process_scheduled_works+0x27f/0x5e0 kernel/workqueue.c:3319 #1: ffffc9000202be48 ((work_completion)(&c->btree_interior_update_work)){....}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #1: ffffc9000202be48 ((work_completion)(&c->btree_interior_update_work)){....}-{0:0}, at: process_scheduled_works+0x29f/0x5e0 kernel/workqueue.c:3319 #2: ffff888135904230 (&c->btree_trans_barrier){....}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:161 [inline] #2: ffff888135904230 (&c->btree_trans_barrier){....}-{0:0}, at: srcu_read_lock include/linux/srcu.h:253 [inline] #2: ffff888135904230 (&c->btree_trans_barrier){....}-{0:0}, at: __bch2_trans_get+0x270/0x3e0 fs/bcachefs/btree_iter.c:3430 #3: ffff88813a0e0140 (bcachefs_btree){....}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:161 [inline] #3: ffff88813a0e0140 (bcachefs_btree){....}-{0:0}, at: srcu_read_lock include/linux/srcu.h:253 [inline] #3: ffff88813a0e0140 (bcachefs_btree){....}-{0:0}, at: __bch2_trans_get+0x270/0x3e0 fs/bcachefs/btree_iter.c:3430 #4: ffff88813594af08 (journal res){....}-{0:0}, at: bch2_journal_res_get+0x26e/0x2e0 fs/bcachefs/journal.h:406 #5: ffff888135904870 (&c->mark_lock){....}-{0:0}, at: bch2_accounting_mem_insert+0x17e/0x260 fs/bcachefs/disk_accounting.c:372 2 locks held by getty/2341: #0: ffff888105f530a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x40 drivers/tty/tty_ldisc.c:243 #1: ffffc90004ab32f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x1c9/0x6f0 drivers/tty/n_tty.c:2222 2 locks held by syz-executor/3685: #0: ffff88811b46f0e0 (&type->s_umount_key#51){....}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff88811b46f0e0 (&type->s_umount_key#51){....}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff88811b46f0e0 (&type->s_umount_key#51){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:505 #1: ffff888135e00278 (&c->state_lock){....}-{3:3}, at: __bch2_fs_stop+0x55/0x250 fs/bcachefs/super.c:659 2 locks held by syz.1.71/6160: #0: ffff888123a39408 (sb_writers#12){....}-{0:0}, at: vfs_fallocate+0x183/0x1c0 fs/open.c:337 #1: ffff88811637b988 ( &sb->s_type->i_mutex_key#18){....}-{3:3}, at: inode_lock include/linux/fs.h:867 [inline] &sb->s_type->i_mutex_key#18){....}-{3:3}, at: bch2_fallocate_dispatch+0x75/0x190 fs/bcachefs/fs-io.c:824 1 lock held by syz.1.71/6162: #0: ffff88811637bb28 (mapping.invalidate_lock#3){....}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:922 [inline] #0: ffff88811637bb28 (mapping.invalidate_lock#3){....}-{3:3}, at: page_cache_ra_order+0xfd/0x350 mm/readahead.c:491 2 locks held by syz-executor/6740: #0: ffff888139f160e0 (&type->s_umount_key#51){....}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff888139f160e0 (&type->s_umount_key#51){....}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff888139f160e0 (&type->s_umount_key#51){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:505 #1: ffff888135900278 (&c->state_lock){....}-{3:3}, at: __bch2_fs_stop+0x55/0x250 fs/bcachefs/super.c:659 3 locks held by syz.6.600/12871: #0: ffff888130700940 (&c->sb_lock){....}-{3:3}, at: bch2_fs_alloc+0x75a/0xce0 fs/bcachefs/super.c:897 #1: ffff888130704870 (&c->mark_lock){....}-{0:0}, at: bch2_sb_replicas_to_cpu_replicas+0xbb/0x140 fs/bcachefs/replicas.c:600 #2: ffffffff84787738 (rcu_state.exp_mutex){....}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:304 [inline] #2: ffffffff84787738 (rcu_state.exp_mutex){....}-{3:3}, at: synchronize_rcu_expedited+0x2dd/0x620 kernel/rcu/tree_exp.h:998 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120 nmi_cpu_backtrace+0x109/0x170 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x8e/0x140 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:274 [inline] watchdog+0x604/0x630 kernel/hung_task.c:437 kthread+0x200/0x230 kernel/kthread.c:464 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 3695 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:io_serial_out+0x15/0x20 drivers/tty/serial/8250/8250_port.c:416 Code: cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f b6 8f f9 00 00 00 d3 e6 03 77 40 89 d0 89 f2 ee cc cc cc cc cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003523b60 EFLAGS: 00000002 RAX: 0000000000000020 RBX: ffffffff89a6fff0 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: 00000000000003f8 RDI: ffffffff89a6fff0 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000060 R10: 0000000000000006 R11: ffffffff82249e80 R12: 0000000000000001 R13: ffffffff89878c8a R14: 0000000000000010 R15: ffffffff89878c1c FS: 0000555560962500(0000) GS:ffff8881b612e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555f2055c8 CR3: 0000000107388000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_port_out include/linux/serial_core.h:796 [inline] serial8250_console_putchar drivers/tty/serial/8250/8250_port.c:3306 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:-1 [inline] serial8250_console_write+0x627/0x700 drivers/tty/serial/8250/8250_port.c:3456 console_emit_next_record kernel/printk/printk.c:3138 [inline] console_flush_all+0x2ea/0x460 kernel/printk/printk.c:3226 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline] console_unlock+0x65/0x100 kernel/printk/printk.c:3325 vprintk_emit+0x24e/0x400 kernel/printk/printk.c:2450 bch2_print_maybe_redirect fs/bcachefs/super.c:123 [inline] __bch2_print+0xac/0xf0 fs/bcachefs/super.c:142 bch2_fs_read_only+0x85/0x500 fs/bcachefs/super.c:333 __bch2_fs_stop+0x5d/0x250 fs/bcachefs/super.c:660 generic_shutdown_super+0x74/0x110 fs/super.c:642 bch2_kill_sb+0x11/0x20 fs/bcachefs/fs.c:2605 deactivate_locked_super+0x33/0x150 fs/super.c:473 cleanup_mnt+0x7c/0x130 fs/namespace.c:1435 task_work_run+0x84/0xb0 kernel/task_work.c:227 resume_user_mode_work+0x52/0x60 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x77/0xc0 kernel/entry/common.c:218 do_syscall_64+0x9c/0x180 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcbded8fc57 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff69ea85d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fcbdee10925 RCX: 00007fcbded8fc57 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff69ea8690 RBP: 00007fff69ea8690 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff69ea9720 R13: 00007fcbdee10925 R14: 000000000003df22 R15: 00007fff69ea9760