ci2 starts bisection 2025-09-17 02:32:34.933681718 +0000 UTC m=+458266.808496835 bisecting fixing commit since c79648372d02944bf4a54d87e3901db05d0ac82e building syzkaller on 32a0e5edfeef60e894c453dc9e9ae45528626ef1 ensuring issue is reproducible on original commit c79648372d02944bf4a54d87e3901db05d0ac82e testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4c0cb1e48e0bccd4d629b538fb5b781351d2c424c51213f7b0f31e7c6d02fed run #0: crashed: INFO: task hung in reiserfs_sync_fs run #1: crashed: INFO: task hung in reiserfs_sync_fs run #2: crashed: INFO: task hung in reiserfs_sync_fs run #3: crashed: INFO: task hung in reiserfs_sync_fs run #4: crashed: INFO: task hung in reiserfs_sync_fs run #5: crashed: INFO: task hung in reiserfs_sync_fs run #6: crashed: INFO: task hung in reiserfs_sync_fs run #7: crashed: INFO: task hung in process_measurement run #8: crashed: INFO: task hung in reiserfs_sync_fs run #9: crashed: INFO: task hung in reiserfs_sync_fs run #10: crashed: INFO: task hung in reiserfs_sync_fs run #11: crashed: INFO: task hung in reiserfs_sync_fs run #12: crashed: INFO: task hung in reiserfs_sync_fs run #13: crashed: INFO: task hung in reiserfs_sync_fs run #14: crashed: INFO: task hung in reiserfs_sync_fs run #15: crashed: INFO: task hung in reiserfs_sync_fs run #16: crashed: INFO: task hung in reiserfs_sync_fs run #17: crashed: INFO: task hung in reiserfs_sync_fs run #18: crashed: INFO: task hung in reiserfs_sync_fs run #19: crashed: INFO: task hung in reiserfs_sync_fs representative crash: INFO: task hung in reiserfs_sync_fs, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1ddecc8a1e985b1c0998104a5386c09002353c0c7aba65c79d8c8b72214a24ca run #0: crashed: INFO: task hung in reiserfs_sync_fs run #1: crashed: INFO: task hung in reiserfs_sync_fs run #2: crashed: INFO: task hung in reiserfs_sync_fs run #3: crashed: INFO: task hung in reiserfs_sync_fs run #4: crashed: INFO: task hung in process_measurement run #5: crashed: INFO: task hung in process_measurement run #6: crashed: INFO: task hung in reiserfs_sync_fs run #7: crashed: INFO: task hung in reiserfs_sync_fs run #8: crashed: INFO: task hung in reiserfs_sync_fs run #9: OK representative crash: INFO: task hung in reiserfs_sync_fs, types: [HANG] the bug reproduces without the instrumentation disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed kconfig minimization: base=3707 full=7423 leaves diff=2099 split chunks (needed=false): <2099> split chunk #0 of len 2099 into 5 parts testing without sub-chunk 1/5 disabling configs for [bug_or_warning kasan locking atomic_sleep memleak ubsan], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4273ff7048b6f2451673e1348119db4b899d3bdc49a86fb25e5e62aef1cefac7 run #0: crashed: INFO: task hung in reiserfs_sync_fs run #1: crashed: INFO: task hung in reiserfs_sync_fs run #2: crashed: INFO: task hung in reiserfs_sync_fs run #3: crashed: INFO: task hung in reiserfs_sync_fs run #4: crashed: INFO: task hung in reiserfs_sync_fs run #5: crashed: INFO: task hung in reiserfs_sync_fs run #6: crashed: INFO: task hung in reiserfs_sync_fs run #7: crashed: INFO: task hung in reiserfs_sync_fs run #8: crashed: INFO: task hung in process_measurement run #9: crashed: INFO: task hung in process_measurement representative crash: INFO: task hung in reiserfs_sync_fs, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bcefd0562b940d3e66b067b50d8723b4e18b98a473d99347e8fa7522f1312626 all runs: crashed: INFO: task hung in reiserfs_sync_fs representative crash: INFO: task hung in reiserfs_sync_fs, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6ee793613d81bad4f5cad466ced38d2cbdc9922fd75044b6f8d660f0bd268e3d all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: babe6f5885480d1c76d07b284726b9a8b9cd4512ab4562b1e1363f9337e527cb all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bd97add44c49bda573ad6e8dc916f7463f76bf28d135be8747506c937f0b7e0f run #0: crashed: INFO: task hung in reiserfs_sync_fs run #1: crashed: INFO: task hung in reiserfs_sync_fs run #2: crashed: INFO: task hung in reiserfs_sync_fs run #3: crashed: INFO: task hung in reiserfs_sync_fs run #4: crashed: INFO: task hung in reiserfs_sync_fs run #5: crashed: INFO: task hung in reiserfs_sync_fs run #6: crashed: INFO: task hung in do_truncate run #7: crashed: INFO: task hung in reiserfs_sync_fs run #8: crashed: INFO: task hung in reiserfs_sync_fs run #9: crashed: INFO: task hung in reiserfs_sync_fs representative crash: INFO: task hung in reiserfs_sync_fs, types: [HANG] the chunk can be dropped minimized to 840 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ASYMMETRIC_TPM_KEY_SUBTYPE ATM AX25 BRIDGE BRIDGE_NETFILTER BXT_WC_PMIC_OPREGION CAN CFG80211 CHECKPOINT_RESTORE CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON FB FSCACHE GENEVE GPIOLIB HAMRADIO HID_PLAYSTATION 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 INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SCTP IP_SET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_IPV6 IP_VS_LBLC IP_VS_LBLCR IP_VS_LC IP_VS_MH IP_VS_NFCT IP_VS_NQ IP_VS_OVF IP_VS_PE_SIP IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_PROTO_TCP IP_VS_PROTO_UDP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_IMON_RAW IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TOY IR_TTUSBIR ISA_BUS 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_PXRC 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 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 MDIO_MVUSB 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_PLATFORM_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 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_INTEL_PMC_BXT MFD_MT6360 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 MITIGATION_TSA MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOST_USB_HDM 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_BLK 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_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 NETFS_SUPPORT 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_CGROUP NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 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_EGRESS 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_CAKE NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR 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_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_COUNTER 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_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_FLOW_TABLE_IPV4 NF_FLOW_TABLE_IPV6 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 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_REPORTING PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS 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 PLAYSTATION_FF PMIC_OPREGION 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_DYNAMIC PREEMPT_NOTIFIERS PREEMPT_RCU PRISM2_USB PROC_CHILDREN PROC_MEM_ALWAYS_FORCE 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 RC_ATI_REMOTE RC_CORE RC_DEVICES RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_FIXED_VOLTAGE 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 SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_NZXT_KRAKEN2 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 SMB_SERVER SMC SMC_DIAG SMSC_PHY SMS_SDIO_DRV SMS_SIANO_DEBUGFS SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_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_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_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_CGROUP_DATA 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 SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC 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 TASKS_RCU TASKS_RCU_GENERIC 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 TOOLS_SUPPORT_RELR TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TPM_KEY_PARSER TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TRUSTED_KEYS TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_INTEL_PMC TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UCSI_CCG UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_GADGET USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VIDEO_V4L2 VXLAN WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 ZONE_DEVICE] disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed testing current HEAD 43bb85222e53926decace01ce6584ca88e09a0a9 testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 84905b2efff8beb79d10eab7d5c982e6aa667f5e7d3b0e7302e032752450b981 run #0: crashed: INFO: task hung in reiserfs_sync_fs run #1: crashed: INFO: task hung in do_truncate run #2: crashed: INFO: task hung in reiserfs_sync_fs run #3: crashed: INFO: task hung in reiserfs_sync_fs run #4: crashed: INFO: task hung in reiserfs_sync_fs run #5: crashed: INFO: task hung in do_truncate run #6: crashed: INFO: task hung in reiserfs_sync_fs run #7: crashed: INFO: task hung in reiserfs_sync_fs run #8: crashed: INFO: task hung in reiserfs_sync_fs run #9: crashed: INFO: task hung in do_truncate representative crash: INFO: task hung in reiserfs_sync_fs, types: [HANG] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 1h55m6.278102042s (build: 24m40.249541113s, test: 1h28m41.069153064s) crash still not fixed or there were kernel test errors commit msg: Linux 5.15.193 crash: INFO: task hung in reiserfs_sync_fs INFO: task kworker/1:2:961 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:12960 pid: 961 ppid: 2 flags:0x00004000 Workqueue: events_long flush_old_commits Call Trace: context_switch kernel/sched/core.c:5049 [inline] __schedule+0x38a/0x1420 kernel/sched/core.c:6395 schedule+0x68/0xb0 kernel/sched/core.c:6478 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:6537 __mutex_lock_common kernel/locking/mutex.c:669 [inline] __mutex_lock+0x471/0x730 kernel/locking/mutex.c:729 reiserfs_write_lock+0x33/0x50 fs/reiserfs/lock.c:27 reiserfs_sync_fs+0x33/0xb0 fs/reiserfs/super.c:76 flush_old_commits+0x7f/0x110 fs/reiserfs/super.c:111 process_one_work+0x32a/0x6c0 kernel/workqueue.c:2310 worker_thread+0x5b/0x520 kernel/workqueue.c:2457 kthread+0x16c/0x1a0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 INFO: task syz.5.55:6375 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.55 state:D stack:13008 pid: 6375 ppid: 3955 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5049 [inline] __schedule+0x38a/0x1420 kernel/sched/core.c:6395 schedule+0x68/0xb0 kernel/sched/core.c:6478 rwsem_down_write_slowpath+0x2c0/0x610 kernel/locking/rwsem.c:1165 inode_lock include/linux/fs.h:787 [inline] do_truncate+0xba/0x130 fs/open.c:63 handle_truncate fs/namei.c:3265 [inline] do_open fs/namei.c:3612 [inline] path_openat+0x121a/0x1370 fs/namei.c:3742 do_filp_open+0xc1/0x1b0 fs/namei.c:3769 do_sys_openat2+0xed/0x260 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_openat fs/open.c:1285 [inline] __se_sys_openat fs/open.c:1280 [inline] __x64_sys_openat+0x7f/0xe0 fs/open.c:1280 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fc08e3eebe9 RSP: 002b:00007fc08e25f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fc08e615fa0 RCX: 00007fc08e3eebe9 RDX: 0000000000103a42 RSI: 0000200000000440 RDI: ffffffffffffff9c RBP: 00007fc08e471e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc08e616038 R14: 00007fc08e615fa0 R15: 00007ffc14b4e858 Showing all locks held in the system: 4 locks held by kworker/1:1/25: #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc90000d3be68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc90000d3be68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #2: ffff88811cb7b0e0 (&type->s_umount_key#44){....}-{3:3}, at: flush_old_commits+0x33/0x110 fs/reiserfs/super.c:97 #3: ffff88811be2e090 (&sbi->lock){....}-{3:3}, at: reiserfs_write_lock+0x33/0x50 fs/reiserfs/lock.c:27 1 lock held by khungtaskd/26: #0: ffffffff845a1d00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x15/0xf7 kernel/locking/lockdep.c:6472 4 locks held by kworker/u4:1/74: #0: ffff888100068938 ((wq_completion)events_unbound){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff888100068938 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc90000dd3e68 ((linkwatch_work).work){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc90000dd3e68 ((linkwatch_work).work){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #2: ffffffff84744668 (rtnl_mutex){....}-{3:3}, at: linkwatch_event+0xb/0x40 net/core/link_watch.c:251 #3: ffffffff845a2768 (rcu_state.exp_mutex){....}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #3: ffffffff845a2768 (rcu_state.exp_mutex){....}-{3:3}, at: synchronize_rcu_expedited+0xf9/0x390 kernel/rcu/tree_exp.h:845 4 locks held by kworker/1:2/961: #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc90003a23e68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc90003a23e68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #2: ffff88811c8a50e0 (&type->s_umount_key#44){....}-{3:3}, at: flush_old_commits+0x33/0x110 fs/reiserfs/super.c:97 #3: ffff888118860890 (&sbi->lock){....}-{3:3}, at: reiserfs_write_lock+0x33/0x50 fs/reiserfs/lock.c:27 2 locks held by getty/1947: #0: ffff888145eba898 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x60 drivers/tty/tty_ldisc.c:252 #1: ffffc9000448f2e8 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x899/0xa20 drivers/tty/n_tty.c:2158 2 locks held by kworker/0:3/2072: #0: ffff888100063138 ((wq_completion)rcu_gp){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff888100063138 ((wq_completion)rcu_gp){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc90001957e68 ((work_completion)(&rew.rew_work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc90001957e68 ((work_completion)(&rew.rew_work)){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 4 locks held by kworker/1:17/2194: #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc900032e3e68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc900032e3e68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #2: ffff88811752f0e0 (&type->s_umount_key#44){....}-{3:3}, at: flush_old_commits+0x33/0x110 fs/reiserfs/super.c:97 #3: ffff8881170a7890 (&sbi->lock){....}-{3:3}, at: reiserfs_write_lock+0x33/0x50 fs/reiserfs/lock.c:27 3 locks held by kworker/1:18/2195: #0: ffff8881072fe738 ((wq_completion)ipv6_addrconf){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff8881072fe738 ((wq_completion)ipv6_addrconf){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc900032fbe68 ((work_completion)(&(&ifa->dad_work)->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc900032fbe68 ((work_completion)(&(&ifa->dad_work)->work)){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #2: ffffffff84744668 (rtnl_mutex){....}-{3:3}, at: addrconf_dad_work+0x41/0x810 net/ipv6/addrconf.c:4110 4 locks held by kworker/0:13/3607: #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc900026abe68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc900026abe68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #2: ffff88810a3920e0 (&type->s_umount_key#44){....}-{3:3}, at: flush_old_commits+0x33/0x110 fs/reiserfs/super.c:97 #3: ffff8881166cb090 (&sbi->lock){....}-{3:3}, at: reiserfs_write_lock+0x33/0x50 fs/reiserfs/lock.c:27 4 locks held by kworker/0:14/3613: #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc9000269be68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc9000269be68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #2: ffff8881196310e0 (&type->s_umount_key#44){....}-{3:3}, at: flush_old_commits+0x33/0x110 fs/reiserfs/super.c:97 #3: ffff888145f0a890 (&sbi->lock){....}-{3:3}, at: reiserfs_write_lock+0x33/0x50 fs/reiserfs/lock.c:27 4 locks held by kworker/0:18/3620: #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc900025fbe68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc900025fbe68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #2: ffff88811a8430e0 (&type->s_umount_key#44){....}-{3:3}, at: flush_old_commits+0x33/0x110 fs/reiserfs/super.c:97 #3: ffff888119199090 (&sbi->lock){....}-{3:3}, at: reiserfs_write_lock+0x33/0x50 fs/reiserfs/lock.c:27 4 locks held by kworker/0:19/3622: #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #0: ffff888100062938 ((wq_completion)events_long){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #1: ffffc9000260be68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: wake_up_worker kernel/workqueue.c:859 [inline] #1: ffffc9000260be68 ((work_completion)(&(&sbi->old_work)->work)){....}-{0:0}, at: process_one_work+0x26e/0x6c0 kernel/workqueue.c:2273 #2: ffff88811afd80e0 (&type->s_umount_key#44){....}-{3:3}, at: flush_old_commits+0x33/0x110 fs/reiserfs/super.c:97 #3: ffff88810a49a890 (&sbi->lock){....}-{3:3}, at: reiserfs_write_lock+0x33/0x50 fs/reiserfs/lock.c:27 2 locks held by syz-executor/3953: #0: ffff888105f0db18 (&disk->open_mutex){....}-{3:3}, at: blkdev_put+0x5b/0x300 block/bdev.c:915 #1: ffff888141591468 (&lo->lo_mutex){....}-{3:3}, at: __loop_clr_fd+0x60/0x770 drivers/block/loop.c:1366 2 locks held by syz-executor/3958: #0: ffff88810cbe20e0 (&type->s_umount_key#44){....}-{3:3}, at: deactivate_super+0x66/0x80 fs/super.c:365 #1: ffffffff845a2768 (rcu_state.exp_mutex){....}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #1: ffffffff845a2768 (rcu_state.exp_mutex){....}-{3:3}, at: synchronize_rcu_expedited+0xf9/0x390 kernel/rcu/tree_exp.h:845 1 lock held by udevd/6333: 2 locks held by syz.5.55/6375: #0: ffff88811c8a5448 (sb_writers#13){....}-{0:0}, at: do_open fs/namei.c:3601 [inline] #0: ffff88811c8a5448 (sb_writers#13){....}-{0:0}, at: path_openat+0x456/0x1370 fs/namei.c:3742 #1: ffff88811dc13f30 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff88811dc13f30 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: do_truncate+0xba/0x130 fs/open.c:63 3 locks held by syz.5.55/6400: 2 locks held by syz.4.181/6982: #0: ffff88811a843448 (sb_writers#13){....}-{0:0}, at: do_open fs/namei.c:3601 [inline] #0: ffff88811a843448 (sb_writers#13){....}-{0:0}, at: path_openat+0x456/0x1370 fs/namei.c:3742 #1: ffff88810ffdc538 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff88810ffdc538 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: do_truncate+0xba/0x130 fs/open.c:63 3 locks held by syz.4.181/6999: 3 locks held by syz.7.292/7767: 2 locks held by syz.8.322/7943: #0: ffff888119631448 (sb_writers#13){....}-{0:0}, at: do_open fs/namei.c:3601 [inline] #0: ffff888119631448 (sb_writers#13){....}-{0:0}, at: path_openat+0x456/0x1370 fs/namei.c:3742 #1: ffff88810ffdad18 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff88810ffdad18 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: do_truncate+0xba/0x130 fs/open.c:63 3 locks held by syz.8.322/7954: 3 locks held by syz.3.381/8418: 4 locks held by syz.9.416/8937: 3 locks held by syz.1.504/10208: 1 lock held by syz-executor/10426: #0: ffffffff84744668 (rtnl_mutex){....}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff84744668 (rtnl_mutex){....}-{3:3}, at: rtnetlink_rcv_msg+0x1fb/0x5f0 net/core/rtnetlink.c:5647 3 locks held by syz.5.645/11030: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8e/0xdd lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x46/0xde lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x139/0x170 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline] watchdog+0x7c6/0x810 kernel/hung_task.c:369 kthread+0x16c/0x1a0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6999 Comm: syz.4.181 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:direntry_check_left+0x55/0x170 fs/reiserfs/item_ops.c:529 Code: 89 6c 24 08 41 89 c7 89 44 24 04 41 29 ef 44 89 fe e8 cf 83 cb ff 45 39 fe 0f 8d df 00 00 00 49 63 c6 45 31 e4 4d 8d 6c 45 00 <44> 89 f8 44 29 f0 89 04 24 eb 21 e8 0b 8c cb ff 41 83 c4 01 44 89 RSP: 0018:ffffc90005d0b4e8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000fd0 RCX: ffffffff815e9761 RDX: 0000000000000003 RSI: ffff88810cc50000 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000ffffffff R10: 0000000000000000 R11: 5346524553494552 R12: 0000000000000000 R13: ffff8881170e40d0 R14: 0000000000000000 R15: 0000000000000003 FS: 00007f5bdf1146c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b34124000 CR3: 0000000116d4d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: get_num_ver.constprop.0+0x1e8/0x670 fs/reiserfs/fix_node.c:515 ip_check_balance fs/reiserfs/fix_node.c:1523 [inline] check_balance fs/reiserfs/fix_node.c:2083 [inline] fix_nodes+0x1b04/0x2c50 fs/reiserfs/fix_node.c:2635 reiserfs_paste_into_item+0x213/0x3e0 fs/reiserfs/stree.c:2130 reiserfs_get_block+0x9e8/0x1ca0 fs/reiserfs/inode.c:1077 __block_write_begin_int+0x24c/0xbe0 fs/buffer.c:2012 reiserfs_write_begin+0x1d4/0x430 fs/reiserfs/inode.c:2790 generic_cont_expand_simple+0x99/0xf0 fs/buffer.c:2362 reiserfs_setattr+0x5c8/0x6c0 fs/reiserfs/inode.c:3319 notify_change+0x6ef/0x9e0 fs/attr.c:505 do_truncate+0xca/0x130 fs/open.c:65 vfs_truncate+0x209/0x240 fs/open.c:111 do_sys_truncate.part.0+0xc8/0xe0 fs/open.c:134 do_sys_truncate fs/open.c:128 [inline] __do_sys_truncate fs/open.c:146 [inline] __se_sys_truncate fs/open.c:144 [inline] __x64_sys_truncate+0x33/0x50 fs/open.c:144 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f5bdf2c4be9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5bdf114038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007f5bdf4ec090 RCX: 00007f5bdf2c4be9 RDX: 0000000000000000 RSI: 00000000003a6800 RDI: 0000200000000000 RBP: 00007f5bdf347e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5bdf4ec128 R14: 00007f5bdf4ec090 R15: 00007fff602910e8