ci starts bisection 2023-11-30 03:38:56.779246881 +0000 UTC m=+46.179146260
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: c20113b81cdfd07d2a359e94f9396971308cc0f24bef88ce3ed1c62e8469d356
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 fat_setattr
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
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: ced8bb1d2c33d3e36434ef0b6ffb623aec8fe4a412e7620611a1d4c2821e39ce
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: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in __generic_file_fsync, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
kconfig minimization: base=3923 full=7329 leaves diff=2002
split chunks (needed=false): <2002>
split chunk #0 of len 2002 into 5 parts
testing without sub-chunk 1/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], 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: 8d32e4dc28958130240ce45304d10cc51b86a62dc4dca3141ab5ce34f7483993
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: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in __generic_file_fsync, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], 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: ecfce355023d660e899d4d5b3c4c2f6153012bfd7da05bbd419d811db9372a2f
all runs: crashed: INFO: task hung in __generic_file_fsync
representative crash: INFO: task hung in __generic_file_fsync, 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 200e340f2196d7fd427a5810d06e893b932f145a gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a771a09bccaf6b608a8c164bb7e1d455b1edbf5b7ce3292d1850cb4985629456
all runs: OK
false negative chance: 0.000
testing without sub-chunk 4/5
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: 2316a72e423081e887a60e5cdc01cfd94235a2ae7fdf1a36698383d579ad0cf4
run #0: crashed: INFO: task hung in __generic_file_fsync
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
representative crash: INFO: task hung in __generic_file_fsync, types: [HANG]
testing without sub-chunk 5/5
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: daa0cc7e13af93af116d4e8f3fe47492383f429af116bebaeb3ce797d3e8ebd4
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: 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 __generic_file_fsync, types: [HANG]
the chunk can be dropped
minimized to 802 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 IMA IMA_APPRAISE IMA_APPRAISE_MODSIG INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_JOYSTICK INPUT_MOUSE INPUT_TABLET INPUT_TOUCHSCREEN INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_SIGNATURE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SCTP IP_SET IP_VS ISDN 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 MICROCODE_AMD MICROCODE_INTEL 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_SIG_SHA1 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_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC 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 [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
testing current HEAD 3b47bc037bd44f142ac09848e8d3ecccc726be99
testing commit 3b47bc037bd44f142ac09848e8d3ecccc726be99 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2d02f863765ff339854688de0ad479c0d8a7604aed2c461167d02e6c7d757fb6
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 fat_setattr
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: 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 __generic_file_fsync, types: [HANG]
crash still not fixed/happens on the oldest tested release
reproducer is flaky (0.65 repro chance estimate)
revisions tested: 8, total time: 2h46m37.511984862s (build: 1h5m46.744805669s, test: 1h22m22.071489961s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'pinctrl-v6.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
crash: INFO: task hung in __generic_file_fsync
INFO: task kworker/1:0:22 blocked for more than 143 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:12304 pid:22 tgid:22 ppid:2 flags:0x00004000
Workqueue: dio/loop4 dio_aio_complete_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
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:1580
inode_lock include/linux/fs.h:802 [inline]
__generic_file_fsync+0x74/0x150 fs/libfs.c:1452
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:2653 [inline]
dio_complete+0x314/0x470 fs/direct-io.c:314
process_one_work+0x2c8/0x710 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x312/0x5c0 kernel/workqueue.c:2784
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task kworker/1:1:27 blocked for more than 143 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1 state:D stack:13488 pid:27 tgid:27 ppid:2 flags:0x00004000
Workqueue: dio/loop4 dio_aio_complete_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
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:1580
inode_lock include/linux/fs.h:802 [inline]
__generic_file_fsync+0x74/0x150 fs/libfs.c:1452
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:2653 [inline]
dio_complete+0x314/0x470 fs/direct-io.c:314
process_one_work+0x2c8/0x710 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x312/0x5c0 kernel/workqueue.c:2784
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task kworker/0:2:756 blocked for more than 143 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:12968 pid:756 tgid:756 ppid:2 flags:0x00004000
Workqueue: dio/loop4 dio_aio_complete_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
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:1580
inode_lock include/linux/fs.h:802 [inline]
__generic_file_fsync+0x74/0x150 fs/libfs.c:1452
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:2653 [inline]
dio_complete+0x314/0x470 fs/direct-io.c:314
process_one_work+0x2c8/0x710 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x312/0x5c0 kernel/workqueue.c:2784
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task kworker/1:2:903 blocked for more than 143 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:13224 pid:903 tgid:903 ppid:2 flags:0x00004000
Workqueue: dio/loop4 dio_aio_complete_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
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:1580
inode_lock include/linux/fs.h:802 [inline]
__generic_file_fsync+0x74/0x150 fs/libfs.c:1452
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:2653 [inline]
dio_complete+0x314/0x470 fs/direct-io.c:314
process_one_work+0x2c8/0x710 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x312/0x5c0 kernel/workqueue.c:2784
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task kworker/0:3:1312 blocked for more than 143 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3 state:D stack:13816 pid:1312 tgid:1312 ppid:2 flags:0x00004000
Workqueue: dio/loop4 dio_aio_complete_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
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:1580
inode_lock include/linux/fs.h:802 [inline]
__generic_file_fsync+0x74/0x150 fs/libfs.c:1452
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:2653 [inline]
dio_complete+0x314/0x470 fs/direct-io.c:314
process_one_work+0x2c8/0x710 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x312/0x5c0 kernel/workqueue.c:2784
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task kworker/1:3:3084 blocked for more than 144 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3 state:D stack:12968 pid:3084 tgid:3084 ppid:2 flags:0x00004000
Workqueue: dio/loop4 dio_aio_complete_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
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:1580
inode_lock include/linux/fs.h:802 [inline]
__generic_file_fsync+0x74/0x150 fs/libfs.c:1452
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:2653 [inline]
dio_complete+0x314/0x470 fs/direct-io.c:314
process_one_work+0x2c8/0x710 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x312/0x5c0 kernel/workqueue.c:2784
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task kworker/0:4:3979 blocked for more than 144 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4 state:D stack:13160 pid:3979 tgid:3979 ppid:2 flags:0x00004000
Workqueue: dio/loop4 dio_aio_complete_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
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:1580
inode_lock include/linux/fs.h:802 [inline]
__generic_file_fsync+0x74/0x150 fs/libfs.c:1452
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:2653 [inline]
dio_complete+0x314/0x470 fs/direct-io.c:314
process_one_work+0x2c8/0x710 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x312/0x5c0 kernel/workqueue.c:2784
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task kworker/0:5:3988 blocked for more than 144 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5 state:D stack:13784 pid:3988 tgid:3988 ppid:2 flags:0x00004000
Workqueue: dio/loop4 dio_aio_complete_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
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:1580
inode_lock include/linux/fs.h:802 [inline]
__generic_file_fsync+0x74/0x150 fs/libfs.c:1452
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:2653 [inline]
dio_complete+0x314/0x470 fs/direct-io.c:314
process_one_work+0x2c8/0x710 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x312/0x5c0 kernel/workqueue.c:2784
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task kworker/0:6:3995 blocked for more than 144 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:6 state:D stack:13328 pid:3995 tgid:3995 ppid:2 flags:0x00004000
Workqueue: dio/loop4 dio_aio_complete_work
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
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:1580
inode_lock include/linux/fs.h:802 [inline]
__generic_file_fsync+0x74/0x150 fs/libfs.c:1452
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:2653 [inline]
dio_complete+0x314/0x470 fs/direct-io.c:314
process_one_work+0x2c8/0x710 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x312/0x5c0 kernel/workqueue.c:2784
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task syz-executor.4:5467 blocked for more than 144 seconds.
Not tainted 6.7.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:12784 pid:5467 tgid:5466 ppid:3462 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x41d/0x1490 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x30/0xf0 kernel/sched/core.c:6778
__inode_dio_wait fs/inode.c:2437 [inline]
inode_dio_wait+0x10e/0x130 fs/inode.c:2455
fat_setattr+0x22a/0x720 fs/fat/file.c:510
notify_change+0x41a/0x8f0 fs/attr.c:499
do_truncate+0xd8/0x130 fs/open.c:66
do_sys_ftruncate+0x301/0x340 fs/open.c:194
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fc6a0c799e9
RSP: 002b:00007fc6a1cfb0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007fc6a0d8bf60 RCX: 00007fc6a0c799e9
RDX: 0000000000000000 RSI: 00000000010099b8 RDI: 0000000000000004
RBP: 00007fc6a0cd5148 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007fc6a0d8bf60 R15: 00007ffd2db22718
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
Showing all locks held in the system:
3 locks held by kworker/1:0/22:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc9000010be40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:1/27:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90000147e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
1 lock held by khungtaskd/28:
#0: ffffffff847a6800 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff847a6800 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff847a6800 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x36/0x120 kernel/locking/lockdep.c:6614
3 locks held by kworker/0:2/756:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc900035c3e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:2/903:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc900036cbe40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/0:3/1312:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90003cf3e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
5 locks held by kworker/u4:10/2095:
2 locks held by getty/2614:
#0: ffff888144ee08a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x50 drivers/tty/tty_ldisc.c:243
#1: ffffc90005ae72f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x83f/0xa60 drivers/tty/n_tty.c:2201
3 locks held by kworker/1:3/3084:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc9000310be40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/0:4/3979:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90002ea3e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/0:5/3988:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90002f43e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/0:6/3995:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90002ec3e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
2 locks held by syz-executor.4/5467:
#0: ffff88811209b400 (sb_writers#13){....}-{0:0}, at: do_syscall_x64 arch/x86/entry/common.c:51 [inline]
#0: ffff88811209b400 (sb_writers#13){....}-{0:0}, at: do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
#1: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: do_truncate+0xc8/0x130 fs/open.c:64
1 lock held by syz-executor.4/5482:
#0: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#0: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: generic_file_write_iter+0x36/0x160 mm/filemap.c:4036
3 locks held by kworker/R-dio/l/5483:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc9000378be08 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:4/5490:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90003813e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:5/5494:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90003823e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:6/5495:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc9000379be40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:7/5498:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90003833e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:8/5499:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc9000383be40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:9/5504:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc9000385be40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:10/5505:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90003863e40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
3 locks held by kworker/1:11/5506:
#0: ffff8881123e8138 ((wq_completion)dio/loop4){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc9000386be40 ((work_completion)(&dio->complete_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88810a2093e8 (&sb->s_type->i_mutex_key#19){....}-{3:3}, at: __generic_file_fsync+0x74/0x150 fs/libfs.c:1452
2 locks held by kworker/1:37/5588:
#0: ffff88810006b538 ((wq_completion)rcu_gp){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
#1: ffffc90003a93e40 ((work_completion)(&rew->rew_work)){....}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2605
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.7.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
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+0x1b1/0x1e0 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+0x969/0x9a0 kernel/hung_task.c:379
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 14269 Comm: syz-executor.4 Not tainted 6.7.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:write_comp_data+0x35/0x80 kernel/kcov.c:236
Code: 8b 14 25 40 d4 02 00 65 8b 05 1f 7c d1 7e a9 00 01 ff 00 74 0f f6 c4 01 74 59 8b 82 54 15 00 00 85 c0 74 4f 8b 82 30 15 00 00 <83> f8 03 75 44 48 8b 82 38 15 00 00 8b 92 34 15 00 00 48 8b 38 48
RSP: 0018:ffffc90003acba20 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000020200000 RCX: ffffffff81421c99
RDX: ffff8881151ad400 RSI: 0000000020200000 RDI: 0000000000000006
RBP: 00000000201bf000 R08: 0000000000000006 R09: 0000000020200000
R10: 00000000201bf000 R11: 0000000000000003 R12: ffff888104ba9df8
R13: 0000000000000000 R14: 0000000000000225 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000113e62000 CR4: 0000000000350ef0
Call Trace:
zap_pte_range mm/memory.c:1524 [inline]
zap_pmd_range mm/memory.c:1582 [inline]
zap_pud_range mm/memory.c:1611 [inline]
zap_p4d_range mm/memory.c:1632 [inline]
unmap_page_range+0x739/0x18d0 mm/memory.c:1653
unmap_single_vma+0xfe/0x170 mm/memory.c:1699
unmap_vmas+0x10e/0x240 mm/memory.c:1743
exit_mmap+0x11c/0x570 mm/mmap.c:3308
__mmput+0x88/0x1d0 kernel/fork.c:1349
mmput+0x40/0x50 kernel/fork.c:1371
exit_mm kernel/exit.c:567 [inline]
do_exit+0x421/0x1160 kernel/exit.c:858
do_group_exit+0x55/0xf0 kernel/exit.c:1021
get_signal+0xfde/0x1100 kernel/signal.c:2904
arch_do_signal_or_restart+0x42/0x490 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0xd4/0x1a0 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x17/0x40 kernel/entry/common.c:296
do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f8e88c799e9
Code: Unable to access opcode bytes at 0x7f8e88c799bf.
RSP: 002b:00007f8e89e16178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f8e88d8bf68 RCX: 00007f8e88c799e9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f8e88d8bf6c
RBP: 00007f8e88d8bf60 R08: 0000000000000001 R09: 00007f8e89e166c0
R10: 0000000000000001 R11: 0000000000000246 R12: 00007f8e88d8bf6c
R13: 0000000000000016 R14: 00007ffdc82ec7d0 R15: 00007ffdc82ec8b8