ci starts bisection 2025-04-22 14:06:39.130416214 +0000 UTC m=+97.166345009 bisecting cause commit starting from 750d0ac001e85b754404178ee8ce01cbc76a03be building syzkaller on 2a20f901dbd7922a27b5625a8a442587c8c3df2c ensuring issue is reproducible on original commit 750d0ac001e85b754404178ee8ce01cbc76a03be testing commit 750d0ac001e85b754404178ee8ce01cbc76a03be gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: bb4bf6c9480cc13caf4b629d6a94776108f83f107430bef49b2f33213c53d676 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 750d0ac001e85b754404178ee8ce01cbc76a03be gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: f37c30209f2663d9b09539a36f78e31e61660536e5b92a8dfeebcc4b17180a8f all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4076 full=8321 leaves diff=2127 split chunks (needed=false): <2127> split chunk #0 of len 2127 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 750d0ac001e85b754404178ee8ce01cbc76a03be gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 082b24412a3064cf968b1d52a7ea882ce0dc92bed83fc8b1cf4a21ff368b6c63 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit 750d0ac001e85b754404178ee8ce01cbc76a03be gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 failed building 750d0ac001e85b754404178ee8ce01cbc76a03be: ld.lld: error: undefined symbol: devm_drm_of_get_bridge testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 750d0ac001e85b754404178ee8ce01cbc76a03be gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: b4e96da2f26e333d50f220fba75036efc14a2f29872ea980a5d3501a537dd5d3 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 750d0ac001e85b754404178ee8ce01cbc76a03be gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: a83ba950ce53748cff77900c036bea5e1631e07c259c95efd74fadb314d1b920 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit 750d0ac001e85b754404178ee8ce01cbc76a03be gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 26536b4e8dd20ab77179a1d498cb1a699309cae8655a9e8007fb4328cea1ec8e all runs: OK false negative chance: 0.000 minimized to 849 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CHARGER_BQ24190 CMA COMMON_CLK CONTIG_ALLOC DAX DLM DRM DRM_BRIDGE DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_GEM_SHMEM_HELPER DRM_GM12U320 DRM_GUD DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_CXUSB_ANALOG DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY EXTCON EXTCON_INTEL_CHT_WC EXTCON_PTN5150 EXTCON_USBC_TUSB320 F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CORE FB_DEFERRED_IO FB_DEVICE FB_IOMEM_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_STACK FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENDWARFKSYMS GENERIC_PHY GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GNSS GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_LJCA GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GTP GUEST_PERF_EVENTS GVE HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO HAVE_KVM_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_KVM_READONLY_MEM HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2200 HID_MCP2221 HID_MEGAWORLD_FF HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SIGMAMICRO HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TOPRE HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZEROPLUS HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_CP2615 I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_HID_ACPI I2C_HID_CORE I2C_HID_OF I2C_LJCA I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_CHTWC_INT33FE INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISHTP_ECLITE INTEL_ISH_FIRMWARE_DOWNLOADER INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_DRIVER_CORE IOMMUFD_TEST IO_URING_ZCRX IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_NF_SECURITY IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IRQ_REMAP IRQ_TIME_ACCOUNTING KVM KVM_INTEL LAPB LCD_CLASS_DEVICE LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC802154 MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_VIPERBOARD MODVERSIONS MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV NOP_USB_XCEIV PAGE_POOL 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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_ROLES_INTEL_XHCI USB_ROLE_SWITCH 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_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_FS 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 WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK 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 ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE 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_ZSMALLOC] disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed picked [v6.14 v6.13 v6.12 v6.10 v6.8 v6.6 v6.4 v6.2 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 37 release tags testing release v6.14 testing commit 38fec10eb60d687e30c8c6b5420d86e8149f7557 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 557bb2744577590454922cf228811ce943def79866d24baada1186ea37f700e7 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] testing release v6.13 testing commit ffd294d346d185b70e28b1a28abe367bbfe53c04 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: ba75cf92a54a25baf2bd21f5e1c518d4d5d7c19898052e1c23a16b970b8b2910 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 10aa85894eb4a5c500474085df5ca806320731b436baf0dc44c78f4fbdfd7cb3 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] testing release v6.10 testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: f440bfc46236628dd9dffcea789bc9bdf821d18bda08da45e8ce0a4534d480d2 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] testing release v6.8 testing commit e8f897f4afef0031fe618a8e94127a0934896aba gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 35006e17a89259b406e2569b5484e51ec42a4b36518f887d42faf7e4cc0efac4 all runs: OK false negative chance: 0.000 # git bisect start 0c3836482481200ead7b416ca80c68a29cfdaabd e8f897f4afef0031fe618a8e94127a0934896aba Bisecting: 15131 revisions left to test after this (roughly 14 steps) [63407d3081a6b406d94bd7d96ff2ca38fa7df236] Merge tag 'phy-fixes-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy testing commit 63407d3081a6b406d94bd7d96ff2ca38fa7df236 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 2d5ba4ba2bc2bf3221ea60707f2727cf4d89b0d5e8021cfc9e9ebd6f94e7895a all runs: OK false negative chance: 0.000 # git bisect good 63407d3081a6b406d94bd7d96ff2ca38fa7df236 Bisecting: 7853 revisions left to test after this (roughly 13 steps) [d34672777da3ea919e8adb0670ab91ddadf7dea0] Merge tag 'fbdev-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev testing commit d34672777da3ea919e8adb0670ab91ddadf7dea0 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: ed989dbcc692ca49b16c2d1ff4aaa2cb1de2515f9c6364d95bb53beaeb2b108a all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad d34672777da3ea919e8adb0670ab91ddadf7dea0 Bisecting: 3630 revisions left to test after this (roughly 12 steps) [113d1dd9c8ea2186d56a641a787e2588673c9c32] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit 113d1dd9c8ea2186d56a641a787e2588673c9c32 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: a06720fc7bc020bda0b4eaff5a3ce9bea1d1ed22c987dcdb11335353509d68bc all runs: OK false negative chance: 0.000 # git bisect good 113d1dd9c8ea2186d56a641a787e2588673c9c32 Bisecting: 1852 revisions left to test after this (roughly 11 steps) [afd29f36aaf733985df1ba162424581b8b8853b4] net: pcs: lynx: no need to read LPA in lynx_pcs_get_state_2500basex() testing commit afd29f36aaf733985df1ba162424581b8b8853b4 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 9b80dfc4ec47e3ac5382014827b76b7f53eabe3c4f53203a5924a377db9cad87 run #0: crashed: INFO: task hung in exit_mmap run #1: crashed: INFO: task hung in exit_mmap run #2: crashed: INFO: task hung in exit_mmap run #3: crashed: INFO: task hung in exit_mmap run #4: crashed: INFO: task hung in exit_mmap run #5: crashed: INFO: task hung in exit_mmap run #6: crashed: INFO: task hung in exit_mmap run #7: crashed: INFO: task hung in exit_mmap run #8: crashed: INFO: task hung in exit_mmap run #9: boot failed: can't ssh into the instance representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad afd29f36aaf733985df1ba162424581b8b8853b4 Bisecting: 888 revisions left to test after this (roughly 10 steps) [8c82bfdd84998c2d78dda0f4a32ecc7b91f7ea8d] net: sparx5: add new register definitions testing commit 8c82bfdd84998c2d78dda0f4a32ecc7b91f7ea8d gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 5653ac6a0f82d2e11da7894bed48048ec0102f1982ad1cb2774d873d3834cd1d run #0: crashed: INFO: task hung in exit_mmap run #1: crashed: INFO: task hung in exit_mmap run #2: crashed: INFO: task hung in exit_mmap run #3: crashed: INFO: task hung in exit_mmap run #4: crashed: INFO: task hung in exit_mmap run #5: crashed: INFO: task hung in exit_mmap run #6: crashed: INFO: task hung in exit_mmap run #7: crashed: INFO: task hung in exit_mmap run #8: boot failed: can't ssh into the instance run #9: boot failed: can't ssh into the instance representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad 8c82bfdd84998c2d78dda0f4a32ecc7b91f7ea8d Bisecting: 444 revisions left to test after this (roughly 9 steps) [7caed786b374ccf3ba6d7833ba79dbc2fcbcbb6e] net: dsa: microchip: ksz8_r_dyn_mac_table(): return read/write error if we got any testing commit 7caed786b374ccf3ba6d7833ba79dbc2fcbcbb6e gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 3bed1f37b713d0ca4ad9099f07f6bfc41e1038a62a78334f6765871d62965786 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad 7caed786b374ccf3ba6d7833ba79dbc2fcbcbb6e Bisecting: 221 revisions left to test after this (roughly 8 steps) [4a96a4e807c390a9d91b450ebe04eeb2e0ecc076] page_pool: check for PP direct cache locality later testing commit 4a96a4e807c390a9d91b450ebe04eeb2e0ecc076 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: c5212961507de527c2b9857d86c47d176b077dfda6c3ea589962d30f80bac9cb run #0: crashed: INFO: task hung in exit_mmap run #1: crashed: INFO: task hung in exit_mmap run #2: crashed: INFO: task hung in exit_mmap run #3: crashed: INFO: task hung in exit_mmap run #4: crashed: INFO: task hung in exit_mmap run #5: crashed: INFO: task hung in exit_mmap run #6: crashed: INFO: task hung in exit_mmap run #7: crashed: INFO: task hung in exit_mmap run #8: crashed: INFO: task hung in exit_mmap run #9: boot failed: can't ssh into the instance representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad 4a96a4e807c390a9d91b450ebe04eeb2e0ecc076 Bisecting: 113 revisions left to test after this (roughly 7 steps) [b3f4c329133809028bd220258a3e049a42257fbe] Merge branch 'bnxt_en-ptp-and-rss-updates' testing commit b3f4c329133809028bd220258a3e049a42257fbe gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 095333f5d9df5a492250bea58d4d095bca9b9dd16ac0cd79659ec5125053ead3 run #0: crashed: INFO: task hung in exit_mmap run #1: crashed: INFO: task hung in exit_mmap run #2: crashed: INFO: task hung in exit_mmap run #3: crashed: INFO: task hung in exit_mmap run #4: crashed: INFO: task hung in exit_mmap run #5: crashed: INFO: task hung in exit_mmap run #6: crashed: INFO: task hung in exit_mmap run #7: crashed: INFO: task hung in exit_mmap run #8: crashed: INFO: task hung in exit_mmap run #9: boot failed: can't ssh into the instance representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad b3f4c329133809028bd220258a3e049a42257fbe Bisecting: 49 revisions left to test after this (roughly 6 steps) [2a702c2e57908e7bb5c814afeac577a14815c2f2] Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next testing commit 2a702c2e57908e7bb5c814afeac577a14815c2f2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: ea093ab37532ae56c88715d590cdae7ead58b436b606c5b6689918ae111bc073 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad 2a702c2e57908e7bb5c814afeac577a14815c2f2 Bisecting: 28 revisions left to test after this (roughly 5 steps) [be24a895149b6df4c474848e3928c237ad10fdc4] bpftool: Enable libbpf logs when loading pid_iter in debug mode testing commit be24a895149b6df4c474848e3928c237ad10fdc4 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: cf14bad94d08248859ae9a19c80dfad731e11cc41044524becfe66bce2440a41 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad be24a895149b6df4c474848e3928c237ad10fdc4 Bisecting: 14 revisions left to test after this (roughly 4 steps) [c733239f8f530872a1f80d8c45dcafbaff368737] bpf: Check return from set_memory_rox() testing commit c733239f8f530872a1f80d8c45dcafbaff368737 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: e2c35efdac242f29afdbde59f07c7b5066145ac0308fd70155ba5c02f523312f run #0: basic kernel testing failed: lost connection to test machine run #1: basic kernel testing failed: lost connection to test machine run #2: basic kernel testing failed: lost connection to test machine run #3: basic kernel testing failed: lost connection to test machine run #4: basic kernel testing failed: lost connection to test machine run #5: basic kernel testing failed: lost connection to test machine run #6: basic kernel testing failed: lost connection to test machine run #7: OK run #8: OK run #9: OK unable to determine the verdict: 3 good runs (wanted 5), for bad wanted 5 in total, got 3 # git bisect skip c733239f8f530872a1f80d8c45dcafbaff368737 Bisecting: 13 revisions left to test after this (roughly 4 steps) [1a4a0cb7985f921548f1a7ac17686afbefe67f87] bpf/lpm_trie: Inline longest_prefix_match for fastpath testing commit 1a4a0cb7985f921548f1a7ac17686afbefe67f87 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: d84aaa58c79540ec4f44b22d2abd34f38b114cb443b3efda51a1fa0eff035368 all runs: OK false negative chance: 0.000 # git bisect good 1a4a0cb7985f921548f1a7ac17686afbefe67f87 Bisecting: 6 revisions left to test after this (roughly 3 steps) [f803bcf9208a2540acb4c32bdc3616673169f490] selftests/bpf: Prevent client connect before server bind in test_tc_tunnel.sh testing commit f803bcf9208a2540acb4c32bdc3616673169f490 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: f038fa3312b5a5490bac9fc87cc641c3a19df7d00a78a60fb0dcbec208a70f83 all runs: OK false negative chance: 0.000 # git bisect good f803bcf9208a2540acb4c32bdc3616673169f490 Bisecting: 2 revisions left to test after this (roughly 2 steps) [36ffb2023e3703a64266ca5fed30f710b1263c70] libbpf: add support for BPF cookie for raw_tp/tp_btf programs testing commit 36ffb2023e3703a64266ca5fed30f710b1263c70 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 229672c0bb98334e0972e55d39b9cd94f881a9cffc99052b63f419bcdd3786f2 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad 36ffb2023e3703a64266ca5fed30f710b1263c70 Bisecting: 1 revision left to test after this (roughly 1 step) [d4dfc5700e867b22ab94f960f9a9972696a637d5] bpf: pass whole link instead of prog when triggering raw tracepoint testing commit d4dfc5700e867b22ab94f960f9a9972696a637d5 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 0d0a1f675fad1c163259428a1ddf9ac16cbaa7d86e6e77855008095dd7ded70a all runs: OK false negative chance: 0.000 # git bisect good d4dfc5700e867b22ab94f960f9a9972696a637d5 Bisecting: 0 revisions left to test after this (roughly 0 steps) [68ca5d4eebb8c4de246ee5f634eee26bc689562d] bpf: support BPF cookie in raw tracepoint (raw_tp, tp_btf) programs testing commit 68ca5d4eebb8c4de246ee5f634eee26bc689562d gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: cb084e3737fdb070f2857b79eee4f5f284b895988070548c35440e40b71316a8 all runs: crashed: INFO: task hung in exit_mmap representative crash: INFO: task hung in exit_mmap, types: [HANG] # git bisect bad 68ca5d4eebb8c4de246ee5f634eee26bc689562d 68ca5d4eebb8c4de246ee5f634eee26bc689562d is the first bad commit commit 68ca5d4eebb8c4de246ee5f634eee26bc689562d Author: Andrii Nakryiko Date: Tue Mar 19 16:38:50 2024 -0700 bpf: support BPF cookie in raw tracepoint (raw_tp, tp_btf) programs Wire up BPF cookie for raw tracepoint programs (both BTF and non-BTF aware variants). This brings them up to part w.r.t. BPF cookie usage with classic tracepoint and fentry/fexit programs. Acked-by: Stanislav Fomichev Acked-by: Eduard Zingerman Signed-off-by: Andrii Nakryiko Message-ID: <20240319233852.1977493-4-andrii@kernel.org> Signed-off-by: Alexei Starovoitov include/linux/bpf.h | 1 + include/uapi/linux/bpf.h | 6 ++++-- kernel/bpf/syscall.c | 13 +++++++++---- kernel/trace/bpf_trace.c | 13 +++++++++++++ tools/include/uapi/linux/bpf.h | 1 + 5 files changed, 28 insertions(+), 6 deletions(-) accumulated error probability: 0.00 culprit signature: cb084e3737fdb070f2857b79eee4f5f284b895988070548c35440e40b71316a8 parent signature: 0d0a1f675fad1c163259428a1ddf9ac16cbaa7d86e6e77855008095dd7ded70a revisions tested: 27, total time: 12h8m32.293894484s (build: 7h27m43.7069479s, test: 3h39m52.631476395s) first bad commit: 68ca5d4eebb8c4de246ee5f634eee26bc689562d bpf: support BPF cookie in raw tracepoint (raw_tp, tp_btf) programs recipients (to): ["andrii@kernel.org" "ast@kernel.org" "eddyz87@gmail.com" "sdf@google.com"] recipients (cc): [] crash: INFO: task hung in exit_mmap INFO: task syz.2.16:4344 blocked for more than 143 seconds. Not tainted 6.8.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.16 state:D stack:13144 pid:4344 tgid:4342 ppid:4167 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x661/0xa60 kernel/sched/core.c:6736 __schedule_loop kernel/sched/core.c:6813 [inline] schedule+0xac/0x140 kernel/sched/core.c:6828 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:6885 rwsem_down_write_slowpath+0x31c/0x730 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0x61/0x90 kernel/locking/rwsem.c:1580 mmap_write_lock include/linux/mmap_lock.h:108 [inline] exit_mmap+0x211/0x580 mm/mmap.c:3295 __mmput+0x3d/0x110 kernel/fork.c:1345 exit_mm+0xaa/0x110 kernel/exit.c:569 do_exit+0x23b/0xac0 kernel/exit.c:865 do_group_exit+0x86/0xa0 kernel/exit.c:1027 get_signal+0x783/0x830 kernel/signal.c:2907 arch_do_signal_or_restart+0x89/0x2a0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:105 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0x57/0x1d0 kernel/entry/common.c:212 do_syscall_64+0xa4/0x180 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f29c538e169 RSP: 002b:00007f29c4dff0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f29c55b6088 RCX: 00007f29c538e169 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f29c55b6088 RBP: 00007f29c55b6080 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f29c55b608c R13: 0000000000000000 R14: 00007ffe6e790610 R15: 00007ffe6e7906f8 INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x146/0x160 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x8e/0x140 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0x5db/0x600 kernel/hung_task.c:379 kthread+0xea/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 52 Comm: kworker/u8:3 Not tainted 6.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:162 [inline] RIP: 0010:wrmsrl arch/x86/include/asm/msr.h:277 [inline] RIP: 0010:native_x2apic_icr_write arch/x86/include/asm/apic.h:228 [inline] RIP: 0010:__x2apic_send_IPI_dest arch/x86/kernel/apic/x2apic_phys.c:113 [inline] RIP: 0010:x2apic_send_IPI+0x2d/0x50 arch/x86/kernel/apic/x2apic_phys.c:50 Code: fa 48 63 c7 48 8b 04 c5 d0 69 b5 83 8b 90 60 51 01 00 0f ae f0 0f ae e8 83 fe 02 b8 00 04 00 00 0f 45 c6 b9 30 08 00 00 0f 30 <66> 90 c3 cc cc cc cc f3 0f 1e fa 89 c0 48 c1 e2 20 48 09 c2 bf 30 RSP: 0018:ffffc900001cfc20 EFLAGS: 00000206 RAX: 00000000000000fb RBX: 0000000000000000 RCX: 0000000000000830 RDX: 0000000000000000 RSI: 00000000000000fb RDI: 0000000000000000 RBP: ffffffff810e2540 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000007 R11: ffffffff811128e0 R12: ffffffff810e2540 R13: ffff888237c386a0 R14: 0000000000000000 R15: ffff888237d32700 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb8581d9f98 CR3: 0000000003ebc000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_send_call_function_single_ipi arch/x86/include/asm/smp.h:93 [inline] send_call_function_single_ipi kernel/smp.c:117 [inline] smp_call_function_many_cond+0x57a/0xae0 kernel/smp.c:837 on_each_cpu_cond_mask+0x3a/0x70 kernel/smp.c:1023 text_poke_bp_batch+0x2c3/0x310 arch/x86/kernel/alternative.c:-1 text_poke_flush arch/x86/kernel/alternative.c:2487 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2494 arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked kernel/jump_label.c:205 [inline] static_key_enable+0x40/0x60 kernel/jump_label.c:218 toggle_allocation_gate+0x3a/0x130 mm/kfence/core.c:826 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x2cd/0x610 kernel/workqueue.c:3335 worker_thread+0x23e/0x300 kernel/workqueue.c:3416 kthread+0xea/0x100 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243