ci starts bisection 2024-09-28 03:18:32.370142668 +0000 UTC m=+92.633326657 bisecting cause commit starting from 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 building syzkaller on 9314348adf7605682d49192fa6487aac93f5782b ensuring issue is reproducible on original commit 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 testing commit 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 147cbb65c32a6e70005a87e1ab7f62f9666a946fb6363e4c94927ce732bcec8a run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in sys_openat run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in sys_pipe2 run #7: crashed: INFO: task hung in corrupted run #8: crashed: INFO: task hung in crda_timeout_work run #9: crashed: INFO: task hung in crda_timeout_work run #10: crashed: INFO: task hung in crda_timeout_work run #11: crashed: INFO: rcu detected stall in sys_newfstatat run #12: crashed: INFO: rcu detected stall in corrupted run #13: crashed: INFO: rcu detected stall in corrupted run #14: crashed: INFO: rcu detected stall in corrupted run #15: crashed: INFO: rcu detected stall in corrupted run #16: OK run #17: OK run #18: OK run #19: crashed: INFO: task hung in del_device_store representative crash: INFO: rcu detected stall in corrupted, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dd462fc8f8a48e59cdca8ce3e1f22d99c0592b37f0add011842846c3f99f940d run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: task hung in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in worker_thread run #6: crashed: INFO: task hung in corrupted run #7: crashed: INFO: task hung in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in corrupted, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=4045 full=8197 leaves diff=2111 split chunks (needed=false): <2111> split chunk #0 of len 2111 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 886573e9bf72b6ac5595a18eada7c7b04387a67ac72aed3eb42516ea3c5fb0d4 run #0: crashed: INFO: task hung in corrupted run #1: crashed: INFO: task hung in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: task hung in del_device_store run #4: crashed: INFO: task hung in corrupted run #5: crashed: INFO: task hung in corrupted run #6: crashed: INFO: task hung in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: task hung in corrupted run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: task hung in corrupted, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2ae8f7bb123e8f513ca0eb810151b081672874072ab1beee16b36e1262f7e9d9 run #0: crashed: INFO: task hung in del_device_store run #1: crashed: INFO: task hung in del_device_store run #2: crashed: INFO: task hung in del_device_store run #3: crashed: INFO: task hung in new_device_store run #4: crashed: INFO: task hung in del_device_store run #5: crashed: INFO: task hung in new_device_store run #6: crashed: INFO: task hung in del_device_store run #7: crashed: INFO: task hung in new_device_store run #8: crashed: INFO: task hung in del_device_store run #9: OK representative crash: INFO: task hung in del_device_store, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3bbdd37d6036e985e030fa6eee7f7f7a36946723388a88a03d1adb99f6a30a3d all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7cc0b7825a79cf235eca89f9e44bec21933d93ee0923808a867f219bef0a4ec5 run #0: crashed: INFO: task hung in del_device_store run #1: crashed: INFO: task hung in del_device_store run #2: crashed: INFO: task hung in del_device_store run #3: crashed: INFO: task hung in del_device_store run #4: crashed: INFO: task hung in del_device_store run #5: crashed: INFO: task hung in del_device_store run #6: crashed: INFO: task hung in del_device_store run #7: OK run #8: crashed: INFO: task hung in addrconf_dad_work run #9: OK representative crash: INFO: task hung in del_device_store, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b51f182b1a785ce134c5b81d1dab2d7921bd7aaaaccf608e9b4ba6cf52eea31 all runs: OK false negative chance: 0.000 minimized to 842 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL BRIDGE BRIDGE_NETFILTER CAN CARDBUS CFG80211 CFG80211_WEXT CHECKPOINT_RESTORE CMA COMMON_CLK CONTIG_ALLOC DVB_CORE EXTCON FB FB_CORE GPIOLIB HAMRADIO HID_NINTENDO HID_ZEROPLUS HSR I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE IOMMUFD IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS 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_UDP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IRQ_REMAP IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_IMON_RAW IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TOY IR_TTUSBIR ISDN ISDN_CAPI 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_COMMON KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_GENERIC_HARDWARE_ENABLING KVM_GENERIC_MEMORY_ATTRIBUTES KVM_GENERIC_MMU_NOTIFIER KVM_GENERIC_PRE_FAULT_MEMORY KVM_GENERIC_PRIVATE_MEM KVM_HYPERV KVM_INTEL KVM_MMIO KVM_PRIVATE_MEM KVM_PROVE_MMU KVM_SW_PROTECTED_VM KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION 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_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MDIO_MVUSB MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TEST_SUPPORT MEDIA_TUNER MEDIA_TUNER_MSI001 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_SYSCON MFD_VIPERBOARD 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 MODULE_COMPRESS_NONE 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_PIXART 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 MUSB_PIO_ONLY ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_BPF_LINK 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_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_DEVLINK NET_DEVMEM 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_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_MQPRIO_LIB 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_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_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_OVS 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_NAT_AMANDA NF_NAT_H323 NF_NAT_OVS NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NINTENDO_FF 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 NOP_USB_XCEIV PAGE_POOL PARPORT PARTITION_ADVANCED PCCARD PCMCIA PHONET PSAMPLE RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RC_DEVICES RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI 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_MIDI2 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_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_MV_U3D USB_MV_UDC USB_NET2272 USB_NET2272_DMA USB_NET2280 USB_NET_AQC111 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEO VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WAN WANT_DEV_COREDUMP WATCH_QUEUE WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_SILABS WWAN X25 X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK X86_X2APIC X86_X32_ABI XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA Z3FOLD Z3FOLD_DEPRECATED ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED] disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed picked [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: be84459648b86f909ff0753b2c8f92aa0be80521eb2f1bbacb045f2db3f62eb9 all runs: OK false negative chance: 0.000 # git bisect start 075dbe9f6e3c21596c5245826a4ee1f1c1676eb8 98f7e32f20d28ec452afb208f9cffc08448a2652 Bisecting: 5779 revisions left to test after this (roughly 13 steps) [176000734ee2978121fde22a954eb1eabb204329] Merge tag 'ata-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux testing commit 176000734ee2978121fde22a954eb1eabb204329 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8a33a35d703907d885ca66bc5954eaeb5c97417564d30b2621b5124636472a67 run #0: crashed: no output from test machine run #1: OK 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: no output from test machine, types: [UNKNOWN] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 # git bisect skip 176000734ee2978121fde22a954eb1eabb204329 Bisecting: 5779 revisions left to test after this (roughly 13 steps) [acf7c31def54147964955b61b883d440e0fd1a7f] serial: 8250_platform: Remove duplicate mapping testing commit acf7c31def54147964955b61b883d440e0fd1a7f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9e08702f574122c43cce20a2307bf8cddf453bc054684ce970a597dc71e72ff9 all runs: OK false negative chance: 0.000 # git bisect good acf7c31def54147964955b61b883d440e0fd1a7f Bisecting: 5751 revisions left to test after this (roughly 13 steps) [de3ec364c3c37971dbba1e37a55ae5b646c6f24e] lib/buildid: add single folio-based file reader abstraction testing commit de3ec364c3c37971dbba1e37a55ae5b646c6f24e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fd9e52c10fed7c2d9d7236d05d1ed02ea547f9539218e7e57eadd15adb113f61 all runs: OK false negative chance: 0.000 # git bisect good de3ec364c3c37971dbba1e37a55ae5b646c6f24e Bisecting: 5612 revisions left to test after this (roughly 13 steps) [84bbfe6b6435658132df2880258d34babe46d3e0] Merge tag 'platform-drivers-x86-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 testing commit 84bbfe6b6435658132df2880258d34babe46d3e0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 84ad10a28006702e3a1ff01d31466ed23a834c9e0aa104851a53233a6b2d2e6b all runs: OK false negative chance: 0.000 # git bisect good 84bbfe6b6435658132df2880258d34babe46d3e0 Bisecting: 2733 revisions left to test after this (roughly 12 steps) [891e8abed532423d3b918b0c445dc8919bc445b5] Merge tag 'perf-tools-for-v6.12-1-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools testing commit 891e8abed532423d3b918b0c445dc8919bc445b5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7fc941fbb3037177aab357091f214adea4030c87f1936897ef92e701b1691dea run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: task hung in new_device_store run #2: crashed: INFO: task hung in new_device_store run #3: crashed: INFO: task hung in del_device_store run #4: crashed: INFO: task hung in gate_exit_net run #5: crashed: INFO: task hung in rescuer_thread run #6: crashed: INFO: task hung in worker_attach_to_pool run #7: crashed: INFO: task hung in reg_check_chans_work run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 891e8abed532423d3b918b0c445dc8919bc445b5 Bisecting: 1402 revisions left to test after this (roughly 11 steps) [de848da12f752170c2ebe114804a985314fd5a6a] Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel testing commit de848da12f752170c2ebe114804a985314fd5a6a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1fa792ae0487cdfba688a70606cdd146515d51e5fb09becba16a09fbd94db0f2 all runs: OK false negative chance: 0.000 # git bisect good de848da12f752170c2ebe114804a985314fd5a6a Bisecting: 658 revisions left to test after this (roughly 10 steps) [617a814f14b8914271f7a70366d72c6196d17663] Merge tag 'mm-stable-2024-09-20-02-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit 617a814f14b8914271f7a70366d72c6196d17663 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b3b9e60e448dedfa2e7c9f08881157623b063b5ceb229ab8d0f357e7d2508b8d run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: task hung in del_device_store run #3: crashed: INFO: task hung in del_device_store run #4: crashed: INFO: task hung in rtnetlink_rcv_msg run #5: crashed: no output from test machine run #6: crashed: no output from test machine run #7: crashed: INFO: task hung in new_device_store run #8: OK run #9: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 617a814f14b8914271f7a70366d72c6196d17663 Bisecting: 371 revisions left to test after this (roughly 9 steps) [ec0db74b4b1f249ffca4df450f54c17573114045] mm: restart if multiple traversals raced testing commit ec0db74b4b1f249ffca4df450f54c17573114045 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e97fc250a3906b4748f3ad7fd83c8538eb1dc62911cdabf79a0182ecef7dd9fe all runs: OK false negative chance: 0.000 # git bisect good ec0db74b4b1f249ffca4df450f54c17573114045 Bisecting: 169 revisions left to test after this (roughly 8 steps) [2004cef11ea072838f99bd95cefa5c8e45df0847] Merge tag 'sched-core-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 2004cef11ea072838f99bd95cefa5c8e45df0847 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b2224a0d7a58155c3d67bc510271ce8e9ddafe5406fecede0ad99b6fbcd50dfb run #0: crashed: INFO: task hung in del_device_store run #1: crashed: INFO: task hung in del_device_store run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: task hung in del_device_store run #4: crashed: INFO: task hung in del_device_store run #5: crashed: INFO: task hung in rescuer_thread run #6: crashed: no output from test machine run #7: OK run #8: crashed: no output from test machine run #9: OK representative crash: INFO: task hung in del_device_store, types: [HANG] # git bisect bad 2004cef11ea072838f99bd95cefa5c8e45df0847 Bisecting: 107 revisions left to test after this (roughly 7 steps) [cff06a799dbe81f3a697ae7c805eaf88d30c2308] Merge patch series "smartpqi updates" testing commit cff06a799dbe81f3a697ae7c805eaf88d30c2308 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d089b1307fd029157e3104397c3d1a134a42dd966dc5b44be76bc600a05172c8 all runs: OK false negative chance: 0.000 # git bisect good cff06a799dbe81f3a697ae7c805eaf88d30c2308 Bisecting: 53 revisions left to test after this (roughly 6 steps) [3dcac251b066b60dba6d44c97d76faeb00bf19c5] sched/core: Introduce SM_IDLE and an idle re-entry fast-path in __schedule() testing commit 3dcac251b066b60dba6d44c97d76faeb00bf19c5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee753971157e631005a18c5fbccce04099b15049c076889db3b199d65b75f0f6 run #0: crashed: INFO: task hung in new_device_store run #1: crashed: INFO: task hung in addrconf_dad_work run #2: crashed: INFO: task hung in del_device_store run #3: crashed: INFO: task hung in del_device_store run #4: crashed: INFO: task hung in new_device_store run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: task hung in del_device_store run #7: crashed: INFO: task hung in tun_chr_close run #8: OK run #9: OK representative crash: INFO: task hung in new_device_store, types: [HANG] # git bisect bad 3dcac251b066b60dba6d44c97d76faeb00bf19c5 Bisecting: 26 revisions left to test after this (roughly 5 steps) [fab4a808ba9fb59b691d7096eed9b1494812ffd6] sched/fair: Re-organize dequeue_task_fair() testing commit fab4a808ba9fb59b691d7096eed9b1494812ffd6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6ebdab764f458051903b319a0185b0eac0908f954f0921f9562e4bdefb11d9fa all runs: OK false negative chance: 0.000 # git bisect good fab4a808ba9fb59b691d7096eed9b1494812ffd6 Bisecting: 13 revisions left to test after this (roughly 4 steps) [82e9d0456e06cebe2c89f3c73cdbc9e3805e9437] sched/fair: Avoid re-setting virtual deadline on 'migrations' testing commit 82e9d0456e06cebe2c89f3c73cdbc9e3805e9437 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a9f70bc3d0343125d350dcc76e8a7272cfef87a766e58a884907d13aa7a0b10b run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: task hung in new_device_store run #2: crashed: INFO: task hung in del_device_store run #3: crashed: INFO: task hung in new_device_store run #4: crashed: INFO: task hung in new_device_store run #5: crashed: INFO: task hung in new_device_store run #6: crashed: INFO: task hung in del_device_store run #7: crashed: INFO: task hung in new_device_store run #8: crashed: INFO: task hung in linkwatch_event run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 82e9d0456e06cebe2c89f3c73cdbc9e3805e9437 Bisecting: 5 revisions left to test after this (roughly 3 steps) [781773e3b68031bd001c0c18aa72e8470c225ebd] sched/fair: Implement ENQUEUE_DELAYED testing commit 781773e3b68031bd001c0c18aa72e8470c225ebd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 781773e3b68031bd001c0c18aa72e8470c225ebd: kernel/sched/fair.c:12922:7: error: use of undeclared identifier '__SCHED_FEAT_DELAY_ZERO' # git bisect skip 781773e3b68031bd001c0c18aa72e8470c225ebd Bisecting: 5 revisions left to test after this (roughly 3 steps) [f12e148892ede8d9ee82bcd3e469e6d01fc077ac] sched/fair: Prepare pick_next_task() for delayed dequeue testing commit f12e148892ede8d9ee82bcd3e469e6d01fc077ac gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building f12e148892ede8d9ee82bcd3e469e6d01fc077ac: kernel/sched/fair.c:12893:7: error: use of undeclared identifier '__SCHED_FEAT_DELAY_ZERO' # git bisect skip f12e148892ede8d9ee82bcd3e469e6d01fc077ac Bisecting: 5 revisions left to test after this (roughly 3 steps) [dfa0a574cbc47bfd5f8985f74c8ea003a37fa078] sched/uclamg: Handle delayed dequeue testing commit dfa0a574cbc47bfd5f8985f74c8ea003a37fa078 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 37786c3303283aa18f8281bfbdfba6bbe32d86126fe035e30cbff274e83c0435 run #0: OK run #1: OK run #2: OK run #3: OK run #4: crashed: INFO: task hung in del_device_store run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: INFO: task hung in del_device_store, types: [HANG] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 # git bisect skip dfa0a574cbc47bfd5f8985f74c8ea003a37fa078 Bisecting: 5 revisions left to test after this (roughly 3 steps) [2e0199df252a536a03f4cb0810324dff523d1e79] sched/fair: Prepare exit/cleanup paths for delayed_dequeue testing commit 2e0199df252a536a03f4cb0810324dff523d1e79 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 2e0199df252a536a03f4cb0810324dff523d1e79: kernel/sched/fair.c:12878:7: error: use of undeclared identifier '__SCHED_FEAT_DELAY_ZERO' # git bisect skip 2e0199df252a536a03f4cb0810324dff523d1e79 Bisecting: 5 revisions left to test after this (roughly 3 steps) [152e11f6df293e816a6a37c69757033cdc72667d] sched/fair: Implement delayed dequeue testing commit 152e11f6df293e816a6a37c69757033cdc72667d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 152e11f6df293e816a6a37c69757033cdc72667d: kernel/sched/fair.c:12977:7: error: use of undeclared identifier '__SCHED_FEAT_DELAY_ZERO'; did you mean '__SCHED_FEAT_DELAY_DEQUEUE'? # git bisect skip 152e11f6df293e816a6a37c69757033cdc72667d Bisecting: 5 revisions left to test after this (roughly 3 steps) [a1c446611e31ca5363d4db51e398271da1dce0af] sched,freezer: Mark TASK_FROZEN special testing commit a1c446611e31ca5363d4db51e398271da1dce0af gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building a1c446611e31ca5363d4db51e398271da1dce0af: kernel/sched/fair.c:12922:7: error: use of undeclared identifier '__SCHED_FEAT_DELAY_ZERO' # git bisect skip a1c446611e31ca5363d4db51e398271da1dce0af Bisecting: 5 revisions left to test after this (roughly 3 steps) [abc158c82ae555078aa5dd2d8407c3df0f868904] sched: Prepare generic code for delayed dequeue testing commit abc158c82ae555078aa5dd2d8407c3df0f868904 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 64acc4d522297be3eead0e3b9a1d32629154c944501772a62a8b2da5d4b1c20a run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: crashed: INFO: task hung in linkwatch_event run #9: OK representative crash: INFO: task hung in linkwatch_event, types: [HANG] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 # git bisect skip abc158c82ae555078aa5dd2d8407c3df0f868904 Bisecting: 5 revisions left to test after this (roughly 3 steps) [e1459a50ba31831efdfc35278023d959e4ba775b] sched: Teach dequeue_task() about special task states testing commit e1459a50ba31831efdfc35278023d959e4ba775b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building e1459a50ba31831efdfc35278023d959e4ba775b: kernel/sched/fair.c:12922:7: error: use of undeclared identifier '__SCHED_FEAT_DELAY_ZERO' # git bisect skip e1459a50ba31831efdfc35278023d959e4ba775b Bisecting: 5 revisions left to test after this (roughly 3 steps) [54a58a78779169f9c92a51facf6de7ce94962328] sched/fair: Implement DELAY_ZERO testing commit 54a58a78779169f9c92a51facf6de7ce94962328 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 23ae16b63ffe4f188f87abe1b57962e5b3f93adb7f9c36bef3189b81a73f1a4f run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: task hung in new_device_store run #2: crashed: INFO: task hung in del_device_store run #3: crashed: INFO: task hung in del_device_store run #4: crashed: INFO: task hung in del_device_store run #5: crashed: INFO: task hung in new_device_store run #6: crashed: INFO: task hung in new_device_store run #7: crashed: INFO: task hung in new_device_store run #8: crashed: INFO: rcu detected stall in corrupted run #9: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] # git bisect bad 54a58a78779169f9c92a51facf6de7ce94962328 Bisecting: 5 revisions left to test after this (roughly 3 steps) [e28b5f8bda01720b5ce8456b48cf4b963f9a80a1] sched/fair: Assert {set_next,put_prev}_entity() are properly balanced testing commit e28b5f8bda01720b5ce8456b48cf4b963f9a80a1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e822d4bd6a9273303cc1f84ca307c404f974aef2264657a84435d9f95b59cf68 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: crashed: INFO: task hung in linkwatch_event run #9: OK representative crash: INFO: task hung in linkwatch_event, types: [HANG] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 # git bisect skip e28b5f8bda01720b5ce8456b48cf4b963f9a80a1 Bisecting: 5 revisions left to test after this (roughly 3 steps) [e8901061ca0cd9acbd3d29d41d16c69c2bfff9f0] sched: Split DEQUEUE_SLEEP from deactivate_task() testing commit e8901061ca0cd9acbd3d29d41d16c69c2bfff9f0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a9b9d9170c410a52ca7d789f4c4ab156bc787aab0cef273329c67cac9e7d8335 run #0: crashed: INFO: task hung in linkwatch_event run #1: OK run #2: crashed: INFO: task hung in addrconf_dad_work run #3: OK run #4: crashed: INFO: task hung in addrconf_dad_work run #5: OK run #6: OK run #7: crashed: INFO: task hung in new_device_store run #8: crashed: INFO: task hung in rtnetlink_rcv_msg run #9: OK representative crash: INFO: task hung in linkwatch_event, types: [HANG] # git bisect bad e8901061ca0cd9acbd3d29d41d16c69c2bfff9f0 e8901061ca0cd9acbd3d29d41d16c69c2bfff9f0 is the first bad commit commit e8901061ca0cd9acbd3d29d41d16c69c2bfff9f0 Author: Peter Zijlstra Date: Thu May 23 10:48:09 2024 +0200 sched: Split DEQUEUE_SLEEP from deactivate_task() As a preparation for dequeue_task() failing, and a second code-path needing to take care of the 'success' path, split out the DEQEUE_SLEEP path from deactivate_task(). Much thanks to Libo for spotting and fixing a TASK_ON_RQ_MIGRATING ordering fail. Fixed-by: Libo Chen Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Valentin Schneider Tested-by: Valentin Schneider Link: https://lkml.kernel.org/r/20240727105029.086192709@infradead.org kernel/sched/core.c | 23 +++++++++++++---------- kernel/sched/sched.h | 14 ++++++++++++++ 2 files changed, 27 insertions(+), 10 deletions(-) accumulated error probability: 0.00 culprit signature: a9b9d9170c410a52ca7d789f4c4ab156bc787aab0cef273329c67cac9e7d8335 parent signature: 6ebdab764f458051903b319a0185b0eac0908f954f0921f9562e4bdefb11d9fa revisions tested: 26, total time: 11h28m5.883247626s (build: 4h55m34.000337607s, test: 4h0m42.038787504s) first bad commit: e8901061ca0cd9acbd3d29d41d16c69c2bfff9f0 sched: Split DEQUEUE_SLEEP from deactivate_task() recipients (to): ["juri.lelli@redhat.com" "linux-kernel@vger.kernel.org" "mingo@redhat.com" "peterz@infradead.org" "peterz@infradead.org" "vincent.guittot@linaro.org" "vschneid@redhat.com"] recipients (cc): ["bsegall@google.com" "dietmar.eggemann@arm.com" "mgorman@suse.de" "rostedt@goodmis.org" "vschneid@redhat.com"] crash: INFO: task hung in linkwatch_event INFO: task kworker/1:2:2889 blocked for more than 143 seconds. Not tainted 6.11.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:12608 pid:2889 tgid:2889 ppid:2 flags:0x00004000 Workqueue: events linkwatch_event Call Trace: context_switch kernel/sched/core.c:5233 [inline] __schedule+0x67c/0xa40 kernel/sched/core.c:6573 __schedule_loop kernel/sched/core.c:6650 [inline] schedule+0xac/0x140 kernel/sched/core.c:6665 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:6722 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x44a/0x970 kernel/locking/mutex.c:752 linkwatch_event+0xe/0x30 net/core/link_watch.c:276 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0x3a4/0x8f0 kernel/workqueue.c:3312 worker_thread+0x35a/0x4b0 kernel/workqueue.c:3390 kthread+0x114/0x140 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz-executor:4151 blocked for more than 144 seconds. Not tainted 6.11.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:11744 pid:4151 tgid:4151 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5233 [inline] __schedule+0x67c/0xa40 kernel/sched/core.c:6573 __schedule_loop kernel/sched/core.c:6650 [inline] schedule+0xac/0x140 kernel/sched/core.c:6665 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:6722 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x44a/0x970 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x49a/0x620 net/core/rtnetlink.c:6644 netlink_rcv_skb+0xe8/0x1c0 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x47f/0x550 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x4e1/0x5c0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xca/0xf0 net/socket.c:745 __sys_sendto+0x344/0x3e0 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __x64_sys_sendto+0x28/0x30 net/socket.c:2212 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fea31d4fd73 RSP: 002b:00007fea3202f688 EFLAGS: 00000202 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fea32a34620 RCX: 00007fea31d4fd73 RDX: 000000000000006c RSI: 00007fea32a34670 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00007fea3202f6a4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 R13: 0000000000000000 R14: 00007fea32a34670 R15: 0000000000000000 INFO: task syz-executor:4156 blocked for more than 145 seconds. Not tainted 6.11.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:11600 pid:4156 tgid:4156 ppid:1 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5233 [inline] __schedule+0x67c/0xa40 kernel/sched/core.c:6573 __schedule_loop kernel/sched/core.c:6650 [inline] schedule+0xac/0x140 kernel/sched/core.c:6665 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:6722 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x44a/0x970 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x49a/0x620 net/core/rtnetlink.c:6644 netlink_rcv_skb+0xe8/0x1c0 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x47f/0x550 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x4e1/0x5c0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xca/0xf0 net/socket.c:745 __sys_sendto+0x344/0x3e0 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __x64_sys_sendto+0x28/0x30 net/socket.c:2212 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f73212efd73 RSP: 002b:00007f73215cf6e8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f7321fd4620 RCX: 00007f73212efd73 RDX: 000000000000003c RSI: 00007f7321fd4670 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00007f73215cf704 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f7321fd4670 R15: 0000000000000000 Showing all locks held in the system: 2 locks held by ksoftirqd/1/24: 1 lock held by khungtaskd/30: #0: ffffffff84bb1cf0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #0: ffffffff84bb1cf0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff84bb1cf0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x30/0x100 kernel/locking/lockdep.c:6620 3 locks held by kworker/u8:7/2339: #0: ffff8881026b9548 ((wq_completion)ipv6_addrconf){....}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff8881026b9548 ((wq_completion)ipv6_addrconf){....}-{0:0}, at: process_scheduled_works+0x2fd/0x8f0 kernel/workqueue.c:3312 #1: ffffc900071e3e48 ((work_completion)(&(&ifa->dad_work)->work)){....}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc900071e3e48 ((work_completion)(&(&ifa->dad_work)->work)){....}-{0:0}, at: process_scheduled_works+0x324/0x8f0 kernel/workqueue.c:3312 #2: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: addrconf_dad_work+0x51/0x8b0 net/ipv6/addrconf.c:4194 4 locks held by kworker/u8:9/2752: #0: ffff888100a86d48 ((wq_completion)netns){....}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888100a86d48 ((wq_completion)netns){....}-{0:0}, at: process_scheduled_works+0x2fd/0x8f0 kernel/workqueue.c:3312 #1: ffffc90006453e48 (net_cleanup_work){....}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90006453e48 (net_cleanup_work){....}-{0:0}, at: process_scheduled_works+0x324/0x8f0 kernel/workqueue.c:3312 #2: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: cleanup_net+0x59/0x5f0 net/core/net_namespace.c:594 #3: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: wg_destruct+0x1d/0x180 drivers/net/wireguard/device.c:246 3 locks held by kworker/1:2/2889: #0: ffff888100078548 ((wq_completion)events){....}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888100078548 ((wq_completion)events){....}-{0:0}, at: process_scheduled_works+0x2fd/0x8f0 kernel/workqueue.c:3312 #1: ffffc90001a17e48 ((linkwatch_work).work){....}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90001a17e48 ((linkwatch_work).work){....}-{0:0}, at: process_scheduled_works+0x324/0x8f0 kernel/workqueue.c:3312 #2: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: linkwatch_event+0xe/0x30 net/core/link_watch.c:276 1 lock held by dhcpcd/3105: #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: rtnetlink_rcv_msg+0x49a/0x620 net/core/rtnetlink.c:6644 2 locks held by getty/3178: #0: ffff888112a658a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x50 drivers/tty/tty_ldisc.c:243 #1: ffffc900081332f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x34e/0xf50 drivers/tty/n_tty.c:2211 3 locks held by kworker/0:7/4102: #0: ffff888100078548 ((wq_completion)events){....}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888100078548 ((wq_completion)events){....}-{0:0}, at: process_scheduled_works+0x2fd/0x8f0 kernel/workqueue.c:3312 #1: ffffc9000207fe48 (deferred_process_work){....}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc9000207fe48 (deferred_process_work){....}-{0:0}, at: process_scheduled_works+0x324/0x8f0 kernel/workqueue.c:3312 #2: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104 1 lock held by syz-executor/4151: #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: rtnetlink_rcv_msg+0x49a/0x620 net/core/rtnetlink.c:6644 2 locks held by syz-executor/4153: #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: tun_chr_close+0x1a/0xd0 drivers/net/tun.c:3510 #1: ffffffff84bb2b78 (rcu_state.exp_mutex){....}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:296 [inline] #1: ffffffff84bb2b78 (rcu_state.exp_mutex){....}-{3:3}, at: synchronize_rcu_expedited+0x2c2/0x5d0 kernel/rcu/tree_exp.h:958 1 lock held by syz-executor/4156: #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: rtnetlink_rcv_msg+0x49a/0x620 net/core/rtnetlink.c:6644 1 lock held by syz-executor/4158: #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: tun_chr_close+0x1a/0xd0 drivers/net/tun.c:3510 2 locks held by syz-executor/4343: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: setup_net+0x3ba/0x550 net/core/net_namespace.c:365 2 locks held by syz-executor/4349: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: setup_net+0x3ba/0x550 net/core/net_namespace.c:365 2 locks held by syz-executor/4351: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: setup_net+0x3ba/0x550 net/core/net_namespace.c:365 2 locks held by syz-executor/4353: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: setup_net+0x3ba/0x550 net/core/net_namespace.c:365 2 locks held by syz-executor/4430: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: setup_net+0x3ba/0x550 net/core/net_namespace.c:365 2 locks held by syz-executor/4434: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: setup_net+0x3ba/0x550 net/core/net_namespace.c:365 2 locks held by syz-executor/4438: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: setup_net+0x3ba/0x550 net/core/net_namespace.c:365 2 locks held by syz-executor/4443: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: setup_net+0x3ba/0x550 net/core/net_namespace.c:365 2 locks held by syz-executor/4513: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: register_netdev+0x13/0x50 net/core/dev.c:10570 2 locks held by syz-executor/4516: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: register_netdev+0x13/0x50 net/core/dev.c:10570 2 locks held by syz-executor/4521: #0: ffffffff84e26018 (pernet_ops_rwsem){....}-{3:3}, at: copy_net_ns+0x27f/0x420 net/core/net_namespace.c:504 #1: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: register_netdev+0x13/0x50 net/core/dev.c:10570 1 lock held by syz-executor/4524: #0: ffffffff84e28098 (rtnl_mutex){....}-{3:3}, at: __tun_chr_ioctl+0x2ab/0x1290 drivers/net/tun.c:3120 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x10e/0x1b0 lib/dump_stack.c:119 nmi_cpu_backtrace+0x234/0x250 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x102/0x220 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0x8d4/0x910 kernel/hung_task.c:379 kthread+0x114/0x140 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 3765 Comm: syz-executor Not tainted 6.11.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:hash32_ptr include/linux/hash.h:96 [inline] RIP: 0010:arp_hashfn include/net/arp.h:16 [inline] RIP: 0010:___neigh_lookup_noref include/net/neighbour.h:306 [inline] RIP: 0010:__ipv4_neigh_lookup_noref include/net/arp.h:27 [inline] RIP: 0010:ip_neigh_gw4+0x46/0x110 include/net/route.h:379 Code: 24 08 e8 dd 79 12 fe 44 89 74 24 04 41 8b b7 b0 00 00 00 31 ed 83 e6 18 44 0f 45 f5 31 ff e8 01 7e 12 fe 48 8b 05 da 80 bb 01 <4c> 89 fa 48 c1 ea 20 44 31 fa 44 31 f2 0f af 50 0c 40 2a 68 08 89 RSP: 0018:ffffc900000e8840 EFLAGS: 00000246 RAX: ffff8881036ccd00 RBX: 0000000000000000 RCX: ffff8881148f8000 RDX: ffff8881148f8000 RSI: 0000000000000008 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8329b9ef R09: ffffffff8329b3ec R10: 0000000000000002 R11: ffff8881148f8000 R12: ffff888124d9d300 R13: ffff888122e9d000 R14: 0000000000000000 R15: ffff888122e9d000 FS: 000055558c6b3500(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555638254a8 CR3: 0000000111794000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_neigh_for_gw include/net/route.h:399 [inline] ip_finish_output2+0x73a/0x7a0 net/ipv4/ip_output.c:229 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip_output+0xbd/0x1b0 net/ipv4/ip_output.c:433 synproxy_send_client_synack+0x304/0x330 net/netfilter/nf_synproxy_core.c:484 nft_synproxy_eval_v4+0x1a8/0x1f0 net/netfilter/nft_synproxy.c:59 nft_synproxy_do_eval+0x170/0x3b0 net/netfilter/nft_synproxy.c:141 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline] nft_do_chain+0x27e/0xb20 net/netfilter/nf_tables_core.c:288 nft_do_chain_inet+0x144/0x170 net/netfilter/nft_chain_filter.c:161 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0x52/0x160 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:269 [inline] NF_HOOK include/linux/netfilter.h:312 [inline] ip_local_deliver+0x154/0x1a0 net/ipv4/ip_input.c:254 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0x59/0x160 net/ipv4/ip_input.c:569 __netif_receive_skb_one_core net/core/dev.c:5660 [inline] __netif_receive_skb+0xe4/0x210 net/core/dev.c:5774 process_backlog+0x257/0x5a0 net/core/dev.c:6107 __napi_poll+0x44/0x330 net/core/dev.c:6771 napi_poll net/core/dev.c:6840 [inline] net_rx_action+0x2e0/0x5f0 net/core/dev.c:6962 handle_softirqs+0xfe/0x2f0 kernel/softirq.c:554 do_softirq+0x86/0xf0 kernel/softirq.c:455 __local_bh_enable_ip+0x69/0x70 kernel/softirq.c:382 lock_sock include/net/sock.h:1607 [inline] tcp_recvmsg+0x129/0x430 net/ipv4/tcp.c:2592 inet_recvmsg+0x91/0x240 net/ipv4/af_inet.c:885 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0xab/0xf0 net/socket.c:1068 sock_read_iter+0x179/0x1e0 net/socket.c:1138 new_sync_read fs/read_write.c:395 [inline] vfs_read+0x45d/0x5a0 fs/read_write.c:476 ksys_read+0xc6/0x180 fs/read_write.c:619 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff099c5c93d Code: a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb b5 e8 78 48 00 00 0f 1f 84 00 00 00 00 00 80 3d 01 ec 18 00 00 74 17 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 5b c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec RSP: 002b:00007ffda97679a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007ffda9767ab0 RCX: 00007ff099c5c93d RDX: 0000000000000004 RSI: 00007ffda97679bc RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000020fe7e4c R09: 7fffffffffffffff R10: 00007ff09a9550b8 R11: 0000000000000246 R12: 00007ffda9767db0 R13: 0000000000000004 R14: 00007ffda97679bc R15: 00007ffda9767a50