ci starts bisection 2023-07-15 18:56:53.525768664 +0000 UTC m=+76058.475600046 bisecting fixing commit since 200e340f2196d7fd427a5810d06e893b932f145a building syzkaller on e853abd9a2542fcccb8e1a23eb8ae475500ecaf9 ensuring issue is reproducible on original commit 200e340f2196d7fd427a5810d06e893b932f145a testing commit 200e340f2196d7fd427a5810d06e893b932f145a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4705c68c193f4bb3c970ce2d1c86b6642b563e3051077c0e70184ec6f4cc9d58 run #0: crashed: INFO: task hung in __generic_file_fsync run #1: crashed: INFO: task hung in __generic_file_fsync run #2: crashed: INFO: task hung in __generic_file_fsync run #3: crashed: INFO: task hung in __generic_file_fsync run #4: crashed: INFO: task hung in __generic_file_fsync run #5: crashed: INFO: task hung in __generic_file_fsync run #6: crashed: INFO: task hung in fat_setattr run #7: crashed: INFO: task hung in fat_setattr run #8: crashed: INFO: task hung in __generic_file_fsync run #9: crashed: INFO: task hung in __generic_file_fsync run #10: crashed: INFO: task hung in __generic_file_fsync run #11: crashed: INFO: task hung in __generic_file_fsync run #12: crashed: INFO: task hung in __generic_file_fsync run #13: crashed: INFO: task hung in __generic_file_fsync run #14: crashed: INFO: task hung in __generic_file_fsync run #15: crashed: INFO: task hung in __generic_file_fsync run #16: crashed: INFO: task hung in fat_setattr run #17: crashed: INFO: task hung in fat_setattr run #18: crashed: INFO: task hung in __generic_file_fsync run #19: crashed: INFO: task hung in __generic_file_fsync run #20: crashed: INFO: task hung in fat_setattr run #21: crashed: INFO: task hung in fat_setattr run #22: crashed: INFO: task hung in fat_setattr run #23: crashed: INFO: task hung in fat_setattr run #24: crashed: INFO: task hung in __generic_file_fsync run #25: crashed: INFO: task hung in __generic_file_fsync run #26: crashed: INFO: task hung in __generic_file_fsync run #27: crashed: INFO: task hung in __generic_file_fsync run #28: crashed: INFO: task hung in __generic_file_fsync run #29: crashed: INFO: task hung in __generic_file_fsync run #30: crashed: INFO: task hung in __generic_file_fsync run #31: crashed: INFO: task hung in __generic_file_fsync run #32: crashed: INFO: task hung in __generic_file_fsync run #33: crashed: INFO: task hung in __generic_file_fsync run #34: crashed: INFO: task hung in __generic_file_fsync run #35: crashed: INFO: task hung in __generic_file_fsync run #36: crashed: INFO: task hung in __generic_file_fsync run #37: crashed: INFO: task hung in __generic_file_fsync run #38: crashed: INFO: task hung in __generic_file_fsync run #39: crashed: INFO: task hung in __generic_file_fsync representative crash: INFO: task hung in __generic_file_fsync, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 200e340f2196d7fd427a5810d06e893b932f145a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: abbe8df357c114c24bc2e1c3009660aa025dc84e023e8c6fe2b7a3f533d22619 run #0: crashed: INFO: task hung in __generic_file_fsync run #1: crashed: INFO: task hung in __generic_file_fsync run #2: crashed: INFO: task hung in __generic_file_fsync run #3: crashed: INFO: task hung in __generic_file_fsync run #4: crashed: INFO: task hung in fat_setattr run #5: crashed: INFO: task hung in fat_setattr run #6: crashed: INFO: task hung in __generic_file_fsync run #7: crashed: INFO: task hung in __generic_file_fsync run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK representative crash: INFO: task hung in __generic_file_fsync, 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=3883 full=7329 leaves diff=1999 split chunks (needed=false): <1999> split chunk #0 of len 1999 into 5 parts testing without sub-chunk 1/5 testing commit 200e340f2196d7fd427a5810d06e893b932f145a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d19da15c34e47a69d6814ac7e8d34f7f85d884a4bb8380056a3dff0385f771e3 run #0: crashed: INFO: task hung in __generic_file_fsync run #1: crashed: INFO: task hung in __generic_file_fsync run #2: crashed: INFO: task hung in __generic_file_fsync run #3: crashed: INFO: task hung in __generic_file_fsync run #4: crashed: INFO: task hung in __generic_file_fsync run #5: crashed: INFO: task hung in __generic_file_fsync run #6: crashed: INFO: task hung in __generic_file_fsync run #7: crashed: INFO: task hung in __generic_file_fsync run #8: crashed: INFO: task hung in __generic_file_fsync run #9: crashed: INFO: task hung in __generic_file_fsync run #10: crashed: INFO: task hung in __generic_file_fsync run #11: crashed: INFO: task hung in __generic_file_fsync run #12: crashed: INFO: task hung in __generic_file_fsync run #13: crashed: INFO: task hung in __generic_file_fsync run #14: crashed: INFO: task hung in __generic_file_fsync run #15: crashed: INFO: task hung in __generic_file_fsync run #16: crashed: INFO: task hung in __generic_file_fsync run #17: crashed: INFO: task hung in __generic_file_fsync run #18: OK run #19: OK run #20: OK run #21: OK run #22: OK run #23: OK run #24: OK run #25: OK run #26: OK run #27: OK run #28: OK representative crash: INFO: task hung in __generic_file_fsync, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 testing commit 200e340f2196d7fd427a5810d06e893b932f145a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f14e8922410ef341fc6717d72292643edc8d4162fac751b8aa1a4a5280ed43b8 run #0: crashed: INFO: task hung in __generic_file_fsync run #1: crashed: INFO: task hung in __generic_file_fsync run #2: crashed: INFO: task hung in __generic_file_fsync run #3: crashed: INFO: task hung in __generic_file_fsync run #4: crashed: INFO: task hung in __generic_file_fsync run #5: crashed: INFO: task hung in __generic_file_fsync run #6: crashed: INFO: task hung in __generic_file_fsync run #7: crashed: INFO: task hung in __generic_file_fsync run #8: crashed: INFO: task hung in __generic_file_fsync run #9: crashed: INFO: task hung in __generic_file_fsync run #10: crashed: INFO: task hung in __generic_file_fsync run #11: crashed: INFO: task hung in __generic_file_fsync run #12: crashed: INFO: task hung in __generic_file_fsync run #13: crashed: INFO: task hung in __generic_file_fsync run #14: crashed: INFO: task hung in __generic_file_fsync run #15: crashed: INFO: task hung in __generic_file_fsync run #16: crashed: INFO: task hung in __generic_file_fsync run #17: crashed: INFO: task hung in __generic_file_fsync run #18: crashed: INFO: task hung in __generic_file_fsync run #19: crashed: INFO: task hung in __generic_file_fsync run #20: OK run #21: OK run #22: OK run #23: OK run #24: OK run #25: OK run #26: OK run #27: OK run #28: OK run #29: OK representative crash: INFO: task hung in __generic_file_fsync, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 testing commit 200e340f2196d7fd427a5810d06e893b932f145a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f0168170620755eabf6de33bcabc67158251d54649c1e1c55a0455f841864a64 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 testing commit 200e340f2196d7fd427a5810d06e893b932f145a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b5a525fd1d127e8ec224143562612ea492298bdec14039d8e4c56e0279f18b39 run #0: crashed: INFO: task hung in fat_setattr run #1: crashed: INFO: task hung in fat_setattr 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 run #20: OK representative crash: INFO: task hung in fat_setattr, types: [HANG] testing without sub-chunk 5/5 testing commit 200e340f2196d7fd427a5810d06e893b932f145a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a6bd44757ae07684dde5a00c77bf69e05081a5e5ee261c84e25009af05ac0b0 run #0: crashed: INFO: task hung in __generic_file_fsync run #1: crashed: INFO: task hung in __generic_file_fsync run #2: crashed: INFO: task hung in __generic_file_fsync run #3: crashed: INFO: task hung in __generic_file_fsync run #4: crashed: INFO: task hung in __generic_file_fsync run #5: crashed: INFO: task hung in __generic_file_fsync run #6: crashed: INFO: task hung in __generic_file_fsync run #7: crashed: INFO: task hung in __generic_file_fsync run #8: crashed: INFO: task hung in __generic_file_fsync run #9: crashed: INFO: task hung in __generic_file_fsync run #10: crashed: INFO: task hung in __generic_file_fsync run #11: crashed: INFO: task hung in __generic_file_fsync run #12: crashed: INFO: task hung in __generic_file_fsync run #13: crashed: INFO: task hung in __generic_file_fsync run #14: crashed: INFO: task hung in __generic_file_fsync run #15: crashed: INFO: task hung in __generic_file_fsync run #16: crashed: INFO: task hung in __generic_file_fsync run #17: crashed: INFO: task hung in __generic_file_fsync run #18: OK run #19: OK run #20: OK run #21: OK run #22: OK run #23: OK run #24: OK run #25: OK run #26: OK run #27: OK run #28: OK representative crash: INFO: task hung in __generic_file_fsync, types: [HANG] the chunk can be dropped minimized to 800 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BRIDGE BRIDGE_NETFILTER CAN CC_HAS_UBSAN_BOUNDS CFG80211 CHECKPOINT_RESTORE CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON FB FSCACHE GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER HSR IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_JOYSTICK INPUT_MOUSE INPUT_TABLET INPUT_TOUCHSCREEN IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SCTP IP_SET IP_VS IR_STREAMZAP IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_INTEL KVM_MMIO KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION LEDS_TRIGGER_AUDIO LEGACY_PTYS LIBCRC32C LIBNVDIMM LIB_MEMNEQ LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_DEBUGFS MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MD_LINEAR MD_MULTIPATH MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_CONTROLLER_REQUEST_API MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEDIA_TUNER_XC2028 MEDIA_TUNER_XC5000 MEDIA_USB_SUPPORT MEMCG_SWAP MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_HOTREMOVE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_DLN2 MFD_RETU MFD_SYSCON MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MINIX_FS MINIX_SUBPARTITION MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MTD_UBI MUSB_PIO_ONLY ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_CONNCOUNT NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XTABLES_COMPAT NETFILTER_XT_CONNMARK NETFILTER_XT_MATCH_BPF NETFILTER_XT_MATCH_CGROUP NETFILTER_XT_MATCH_CLUSTER NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET NETFILTER_XT_TARGET_AUDIT NETFILTER_XT_TARGET_CHECKSUM NETFILTER_XT_TARGET_CLASSIFY NETFILTER_XT_TARGET_CONNMARK NETFILTER_XT_TARGET_CT NETFILTER_XT_TARGET_DSCP NETFILTER_XT_TARGET_HL NETFILTER_XT_TARGET_HMARK NETFILTER_XT_TARGET_IDLETIMER NETFILTER_XT_TARGET_LED NETFILTER_XT_TARGET_MARK NETFILTER_XT_TARGET_NETMAP NETFILTER_XT_TARGET_NFQUEUE NETFILTER_XT_TARGET_NOTRACK NETFILTER_XT_TARGET_RATEEST NETFILTER_XT_TARGET_REDIRECT NETFILTER_XT_TARGET_TCPOPTSTRIP NETFILTER_XT_TARGET_TEE NETFILTER_XT_TARGET_TPROXY NETFILTER_XT_TARGET_TRACE NETLABEL NETLINK_DIAG NETROM NET_9P_RDMA NET_ACT_BPF NET_ACT_CONNMARK NET_ACT_CSUM NET_ACT_CT NET_ACT_CTINFO NET_ACT_GATE NET_ACT_IFE NET_ACT_IPT NET_ACT_MPLS NET_ACT_NAT NET_ACT_PEDIT NET_ACT_POLICE NET_ACT_SAMPLE NET_ACT_SIMP NET_ACT_SKBEDIT NET_ACT_SKBMOD NET_ACT_TUNNEL_KEY NET_ACT_VLAN NET_CLS_BASIC NET_CLS_BPF NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 NET_CLS_RSVP NET_CLS_RSVP6 NET_CLS_TCINDEX NET_DEVLINK NET_DROP_MONITOR NET_DSA NET_DSA_TAG_BRCM NET_DSA_TAG_BRCM_COMMON NET_DSA_TAG_BRCM_PREPEND NET_DSA_TAG_MTK NET_DSA_TAG_QCA NET_DSA_TAG_RTL4_A NET_EMATCH_CANID NET_EMATCH_CMP NET_EMATCH_IPSET NET_EMATCH_IPT NET_EMATCH_META NET_EMATCH_NBYTE NET_EMATCH_TEXT NET_EMATCH_U32 NET_FC NET_FOU NET_FOU_IP_TUNNELS NET_IFE NET_IFE_SKBMARK NET_IFE_SKBPRIO NET_IFE_SKBTCINDEX NET_IPGRE NET_IPGRE_BROADCAST NET_IPGRE_DEMUX NET_IPIP NET_IPVTI NET_KEY NET_KEY_MIGRATE NET_L3_MASTER_DEV NET_MPLS_GSO NET_NCSI NET_NSH NET_REDIRECT NET_SCH_ATM NET_SCH_CAKE NET_SCH_CBQ NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR NET_SCH_DSMARK NET_SCH_ETF NET_SCH_ETS NET_SCH_FQ NET_SCH_FQ_CODEL NET_SCH_FQ_PIE NET_SCH_GRED NET_SCH_HFSC NET_SCH_HHF NET_SCH_HTB NET_SCH_INGRESS NET_SCH_MQPRIO NET_SCH_MULTIQ NET_SCH_NETEM NET_SCH_PIE NET_SCH_PLUG NET_SCH_PRIO NET_SCH_QFQ NET_SCH_RED NET_SCH_SFB NET_SCH_SFQ NET_SCH_SKBPRIO NET_SCH_TAPRIO NET_SCH_TBF NET_SCH_TEQL NET_SOCK_MSG NET_SWITCHDEV NET_TC_SKB_EXT NET_TEAM NET_TEAM_MODE_ACTIVEBACKUP NET_TEAM_MODE_BROADCAST NET_TEAM_MODE_LOADBALANCE NET_TEAM_MODE_RANDOM NET_TEAM_MODE_ROUNDROBIN NET_UDP_TUNNEL NET_VRF NFC NFC_DIGITAL NFC_FDP NFC_HCI NFC_MRVL NFC_MRVL_USB NFC_NCI NFC_NCI_UART NFC_PN533 NFC_PN533_USB NFC_PORT100 NFC_SHDLC NFC_SIM NFC_VIRTUAL_NCI NFSD NFSD_BLOCKLAYOUT NFSD_FLEXFILELAYOUT NFSD_PNFS NFSD_SCSILAYOUT NFSD_V2_ACL NFSD_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V4_1 NFS_V4_2 NFS_V4_2_READ_PLUS NFS_V4_2_SSC_HELPER NFS_V4_SECURITY_LABEL NFT_BRIDGE_META NFT_BRIDGE_REJECT NFT_COMPAT NFT_CONNLIMIT NFT_CT NFT_DUP_IPV4 NFT_DUP_IPV6 NFT_DUP_NETDEV NFT_FIB NFT_FIB_INET NFT_FIB_IPV4 NFT_FIB_IPV6 NFT_FIB_NETDEV NFT_FLOW_OFFLOAD NFT_HASH NFT_LIMIT NFT_LOG NFT_MASQ NFT_NAT NFT_NUMGEN NFT_OBJREF NFT_OSF NFT_QUEUE NFT_QUOTA NFT_REDIR NFT_REJECT NFT_REJECT_INET NFT_REJECT_IPV4 NFT_REJECT_IPV6 NFT_REJECT_NETDEV NFT_SOCKET NFT_SYNPROXY NFT_TPROXY NFT_TUNNEL NFT_XFRM NF_CONNTRACK_AMANDA NF_CONNTRACK_BRIDGE NF_CONNTRACK_BROADCAST NF_CONNTRACK_EVENTS NF_CONNTRACK_H323 NF_CONNTRACK_LABELS NF_CONNTRACK_MARK NF_CONNTRACK_NETBIOS_NS NF_CONNTRACK_PPTP NF_CONNTRACK_PROCFS NF_CONNTRACK_SANE NF_CONNTRACK_SNMP NF_CONNTRACK_TFTP NF_CONNTRACK_TIMEOUT NF_CONNTRACK_TIMESTAMP NF_CONNTRACK_ZONES NF_CT_NETLINK_HELPER NF_CT_NETLINK_TIMEOUT NF_CT_PROTO_DCCP NF_CT_PROTO_GRE NF_CT_PROTO_SCTP NF_CT_PROTO_UDPLITE NF_DUP_IPV4 NF_DUP_IPV6 NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_NAT_AMANDA NF_NAT_H323 NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS 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 NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN 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_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_POOL PAGE_REPORTING PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCI_MSI_IRQ_DOMAIN PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PMC_ATOM PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PRISM2_USB PROC_CHILDREN PSAMPLE PSI PSTORE PSTORE_842_COMPRESS PSTORE_COMPRESS PSTORE_DEFLATE_COMPRESS PSTORE_DEFLATE_COMPRESS_DEFAULT PSTORE_LZ4HC_COMPRESS PSTORE_LZ4_COMPRESS PSTORE_LZO_COMPRESS PSTORE_ZSTD_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RANDOM_TRUST_BOOTLOADER RANDOM_TRUST_CPU RC_ATI_REMOTE RC_CORE RC_DEVICES 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 REGULATOR REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE 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 SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS_COMMON SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_LED SND_CTL_VALIDATION 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_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG 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_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_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO 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 SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_DECOMP_SINGLE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SRCU SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSFB SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TARGET_CORE TASKS_TRACE_RCU 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 TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE 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 TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UBSAN_ONLY_BOUNDS UCSI_ACPI UDF_FS UDMABUF UFS_FS 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_CDC_PHONET USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_IMX USB_CHIPIDEA_MSM USB_CHIPIDEA_PCI USB_CHIPIDEA_TEGRA USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VXLAN WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32_ABI ZONE_DEVICE] disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing current HEAD 831fe284d8275987596b7d640518dddba5735f61 testing commit 831fe284d8275987596b7d640518dddba5735f61 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3b1a7b1c1eb7d806d2781c7f868c13af2eb975d7ece869b2bc599bd3795c79e7 run #0: crashed: INFO: task hung in __generic_file_fsync run #1: crashed: INFO: task hung in __generic_file_fsync run #2: crashed: INFO: task hung in __generic_file_fsync run #3: crashed: INFO: task hung in __generic_file_fsync run #4: crashed: INFO: task hung in __generic_file_fsync run #5: crashed: INFO: task hung in __generic_file_fsync run #6: crashed: INFO: task hung in __generic_file_fsync run #7: crashed: INFO: task hung in __generic_file_fsync run #8: crashed: INFO: task hung in __generic_file_fsync run #9: crashed: INFO: task hung in __generic_file_fsync 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 run #20: OK run #21: OK run #22: OK run #23: OK run #24: OK representative crash: INFO: task hung in __generic_file_fsync, types: [HANG] crash still not fixed/happens on the oldest tested release reproducer is flaky (0.45 repro chance estimate) revisions tested: 8, total time: 2h15m4.495139231s (build: 44m32.562533165s, test: 1h28m7.044848918s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Merge tag 'spi-fix-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi crash: INFO: task hung in __generic_file_fsync INFO: task kworker/1:1:26 blocked for more than 143 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:12880 pid:26 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task kworker/1:2:752 blocked for more than 143 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:13496 pid:752 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task kworker/1:3:2411 blocked for more than 143 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:12960 pid:2411 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task kworker/1:4:2807 blocked for more than 143 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:12880 pid:2807 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task kworker/1:5:4158 blocked for more than 144 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:5 state:D stack:12960 pid:4158 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task kworker/1:7:5560 blocked for more than 144 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:7 state:D stack:13056 pid:5560 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task kworker/1:12:5595 blocked for more than 144 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:12 state:D stack:14152 pid:5595 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task kworker/1:14:5597 blocked for more than 144 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:14 state:D stack:14152 pid:5597 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task kworker/1:15:5598 blocked for more than 145 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:15 state:D stack:14120 pid:5598 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task kworker/0:9:5622 blocked for more than 145 seconds. Not tainted 6.5.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:9 state:D stack:13368 pid:5622 ppid:2 flags:0x00004000 Workqueue: dio/loop3 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x417/0x14a0 kernel/sched/core.c:6710 schedule+0x59/0xa0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x1b/0xa0 kernel/sched/core.c:6845 rwsem_down_write_slowpath+0x2d2/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x7f/0x90 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:771 [inline] __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 fat_file_fsync+0x38/0xb0 fs/fat/file.c:191 vfs_fsync_range+0x5e/0xe0 fs/sync.c:188 generic_write_sync include/linux/fs.h:2493 [inline] dio_complete+0x314/0x470 fs/direct-io.c:314 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff845a59d0 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp+0x26/0x3d0 kernel/rcu/tasks.h:522 3 locks held by kworker/1:1/26: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc9000013fe48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc9000013fe48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 1 lock held by khungtaskd/27: #0: ffffffff845a6080 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x12/0x120 kernel/locking/lockdep.c:6615 4 locks held by kworker/u4:2/35: #0: ffff88813bc2db98 (&rq->__lock){....}-{2:2}, at: raw_spin_rq_lock_nested+0x23/0x80 kernel/sched/core.c:558 #1: ffffc90000197e48 ((work_completion)(&worker->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90000197e48 ((work_completion)(&worker->work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881406594d8 (&lo->lo_work_lock){....}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline] #2: ffff8881406594d8 (&lo->lo_work_lock){....}-{2:2}, at: loop_process_work+0xb7/0xfe0 drivers/block/loop.c:1924 #3: ffff88813bc2db98 (&rq->__lock){....}-{2:2}, at: raw_spin_rq_lock_nested+0x23/0x80 kernel/sched/core.c:558 3 locks held by kworker/1:2/752: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90003737e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90003737e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 3 locks held by kworker/1:3/2411: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90005ffbe48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90005ffbe48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 2 locks held by getty/2590: #0: ffff8881076c7098 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x60 drivers/tty/tty_ldisc.c:243 #1: ffffc90005ff32f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x83d/0xa60 drivers/tty/n_tty.c:2187 3 locks held by kworker/1:4/2807: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90002d37e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90002d37e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 1 lock held by syz-executor.5/3434: #0: ffff8881158540e0 (&type->s_umount_key#44){....}-{3:3}, at: deactivate_super fs/super.c:360 [inline] #0: ffff8881158540e0 (&type->s_umount_key#44){....}-{3:3}, at: deactivate_super+0x94/0xb0 fs/super.c:357 2 locks held by syz-executor.4/3445: #0: ffff888114dd00e0 (&type->s_umount_key#44){....}-{3:3}, at: deactivate_super fs/super.c:360 [inline] #0: ffff888114dd00e0 (&type->s_umount_key#44){....}-{3:3}, at: deactivate_super+0x94/0xb0 fs/super.c:357 #1: ffffffff845a6c78 (rcu_state.exp_mutex){....}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline] #1: ffffffff845a6c78 (rcu_state.exp_mutex){....}-{3:3}, at: synchronize_rcu_expedited+0x159/0x450 kernel/rcu/tree_exp.h:992 3 locks held by kworker/1:5/4158: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90002f47e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90002f47e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 3 locks held by kworker/1:7/5560: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc900035a7e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc900035a7e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 3 locks held by kworker/1:12/5595: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90003687e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90003687e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 3 locks held by kworker/1:14/5597: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90003697e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90003697e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 3 locks held by kworker/1:15/5598: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc9000369fe48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc9000369fe48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 3 locks held by kworker/0:9/5622: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90003717e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90003717e48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 2 locks held by syz-executor.3/5637: #0: ffff888110baa3f8 (sb_writers#13){....}-{0:0}, at: do_syscall_x64 arch/x86/entry/common.c:50 [inline] #0: ffff888110baa3f8 (sb_writers#13){....}-{0:0}, at: do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 #1: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #1: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: do_truncate+0xc8/0x130 fs/open.c:64 1 lock held by syz-executor.3/5647: #0: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #0: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: generic_file_write_iter+0x36/0x160 mm/filemap.c:4041 3 locks held by kworker/1:19/5638: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc900035afe48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc900035afe48 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 3 locks held by dio/loop3/5649: #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810ed72f38 ((wq_completion)dio/loop3){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90003787e08 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90003787e08 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:771 [inline] #2: ffff8881114f47f0 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1131 2 locks held by kworker/0:14/5662: #0: ffff88810006b338 ((wq_completion)rcu_gp){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #0: ffff88810006b338 ((wq_completion)rcu_gp){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 #1: ffffc90003767e48 ((work_completion)(&rew->rew_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:898 [inline] #1: ffffc90003767e48 ((work_completion)(&rew->rew_work)){....}-{0:0}, at: process_one_work+0x2e5/0x760 kernel/workqueue.c:2559 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8e/0xf0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x1ae/0x210 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x1be/0x1f0 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+0x907/0x940 kernel/hung_task.c:379 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4102 Comm: kworker/u4:8 Not tainted 6.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:296 [inline] RIP: 0010:smp_call_function_many_cond+0x276/0xb30 kernel/smp.c:835 Code: e8 df bf 04 00 48 63 c3 49 8b 2c 24 48 03 2c c5 c0 59 17 84 0f 1f 44 00 00 e8 c6 bf 04 00 eb 07 e8 bf bf 04 00 f3 90 8b 5d 08 <31> ff 83 e3 01 89 de e8 2e bb 04 00 85 db 75 e6 e8 a5 bf 04 00 e8 RSP: 0018:ffffc90002f07c68 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000011 RCX: 0000000000000000 RDX: ffff888110af1c00 RSI: ffffffff812b3711 RDI: 0000000000000005 RBP: ffff88813bc36600 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000005 R12: ffff88813bd2ec80 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555556d38a8 CR3: 0000000004474000 CR4: 0000000000350ee0 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1003 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2001 [inline] text_poke_bp_batch+0x1fe/0x310 arch/x86/kernel/alternative.c:2211 text_poke_flush arch/x86/kernel/alternative.c:2402 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2409 arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x19a/0x1e0 kernel/jump_label.c:829 static_key_enable_cpuslocked kernel/jump_label.c:205 [inline] static_key_enable_cpuslocked kernel/jump_label.c:192 [inline] static_key_enable+0x8c/0xa0 kernel/jump_label.c:218 toggle_allocation_gate mm/kfence/core.c:831 [inline] toggle_allocation_gate+0x6b/0x150 mm/kfence/core.c:823 process_one_work+0x3a4/0x760 kernel/workqueue.c:2597 worker_thread+0x5f/0x520 kernel/workqueue.c:2748 kthread+0x10f/0x150 kernel/kthread.c:389 ret_from_fork+0x2c/0x40 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000