ci starts bisection 2026-09-21 09:49:13.887505512 +0000 UTC m=+201093.675471897
bisecting cause commit starting from 50d05c7c76c96b90462f24debacca971d2e86713
building syzkaller on 853b104bb454141a5b0fc0e4218ec78e9f34ffb1
ensuring issue is reproducible on original commit 50d05c7c76c96b90462f24debacca971d2e86713

testing commit 50d05c7c76c96b90462f24debacca971d2e86713 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: b2411355d4591e780c1aa6913ddcb5b4e76414772878ad5c8558cfc2bab546ef
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_open
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: crashed: INFO: task hung in usbdev_ioctl
run #8: crashed: INFO: task hung in usbdev_ioctl
run #9: crashed: INFO: task hung in usbdev_ioctl
run #10: crashed: INFO: task hung in usbdev_ioctl
run #11: crashed: INFO: task hung in usbdev_ioctl
run #12: crashed: INFO: task hung in usbdev_ioctl
run #13: crashed: INFO: task hung in usbdev_ioctl
run #14: crashed: INFO: task hung in usbdev_ioctl
run #15: crashed: INFO: task hung in usbdev_ioctl
run #16: crashed: INFO: task hung in usbdev_ioctl
run #17: crashed: INFO: task hung in usbdev_ioctl
run #18: crashed: INFO: task hung in usbdev_ioctl
run #19: crashed: INFO: task hung in usbdev_ioctl
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed
testing commit 50d05c7c76c96b90462f24debacca971d2e86713 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: bd9da2d537fdac84c0a0e54b299811ac61fe4dfa80af058973d24d0cbe276950
all runs: crashed: INFO: task hung in usbdev_ioctl
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
kconfig minimization: base=4175 full=8661 leaves diff=2142
split chunks (needed=false): <2142>
split chunk #0 of len 2142 into 5 parts
testing without sub-chunk 1/5
disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed
testing commit 50d05c7c76c96b90462f24debacca971d2e86713 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 0056269d78800de734c6ddc283d451326bbdd9fa37f0a768738712ffec26218b
all runs: crashed: INFO: task hung in usbdev_ioctl
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit 50d05c7c76c96b90462f24debacca971d2e86713 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 98e7f78342667cdb802c56d29fd6b8a5816b4ee8c3fad813551a3b8344d7e16a
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: crashed: INFO: task hung in usbdev_ioctl
run #8: crashed: INFO: task hung in usbdev_ioctl
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [bug_or_warning kasan locking atomic_sleep memleak ubsan], they are not needed
testing commit 50d05c7c76c96b90462f24debacca971d2e86713 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 50c370cac8e61e3698ad6eb052d871fb83964ba7f722e914fcaf2eb0a2277495
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit 50d05c7c76c96b90462f24debacca971d2e86713 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 95b8c3b1f8fbe0a44e58eef209d855da5ad38802bdd4e476ae1c1b71de763608
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: crashed: INFO: task hung in usbdev_ioctl
run #8: OK
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed
testing commit 50d05c7c76c96b90462f24debacca971d2e86713 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 82da972d3e4d4e319593d4be503ba7b0f3bea65c629fafb91e274ea9aa805ca6
all runs: OK
false negative chance: 0.000
minimized to 426 configs; suspects: [ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT COMMON_CLK CONTIG_ALLOC DVB_CORE EXTCON GPIOLIB HAVE_ARCH_USERFAULTFD_WP HID_ZEROPLUS I2C_MUX IIO IOMMUFD KVM KVM_INTEL LIBNVDIMM 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_VIPERBOARD NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CDNS3 USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_PCI USB_CDNS_SUPPORT USB_CHAOSKEY 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_GENERIC_PLAT 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_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 USERFAULTFD_RWP USERIO 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_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VIRT_XFER_TO_GUEST_WORK 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 VXLAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_MORSEMICRO WLAN_VENDOR_NXP WLAN_VENDOR_SILABS X86_FRED X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_IPTFS XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_BTREE_IN_MEM XFS_DRAIN_INTENTS XFS_FS XFS_LIVE_HOOKS XFS_MEMORY_BUFS XFS_ONLINE_REPAIR XFS_ONLINE_SCRUB XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS XOR_BLOCKS_ARCH YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS 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]
disabling configs for [bug_or_warning kasan locking atomic_sleep memleak ubsan], they are not needed
picked [v7.2 v7.1 v7.0 v6.18 v6.16 v6.14 v6.12 v6.10 v6.7 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 45 release tags
testing release v7.2
testing commit 8d3ae59288f1e7d58d76558a6ee96d533bc5019f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 90a6b77712b4888a9bbe394506deb7a2de4d96411ede01751521be5e46025877
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: crashed: INFO: task hung in usbdev_ioctl
run #8: crashed: INFO: task hung in usbdev_ioctl
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
testing release v7.1
testing commit 8cd9520d35a6c38db6567e97dd93b1f11f185dc6 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: e7fd1dca2ecf598874f768f670b82af400d4a50e364eddf80828604ca9ffb1c7
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: crashed: INFO: task hung in usbdev_ioctl
run #8: crashed: INFO: task hung in usbdev_ioctl
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
testing release v7.0
testing commit 028ef9c96e96197026887c0f092424679298aae8 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 5c18d1b7f093ad468cee848e029a18323f6a468e61403a9e8fe5492091f7cd37
all runs: crashed: INFO: task hung in usbdev_ioctl
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
testing release v6.18
testing commit 7d0a66e4bb9081d75c82ec4957c50034cb0ea449 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: ec364bba0b6f542c61c78df8d49014b171ca57c29353d930aac3a9d383d9eba4
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
testing release v6.16
testing commit 038d61fd642278bab63ee8ef722c50d10ab01e8f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: cac4a99442ec498bb8b968588e4334f8b6fc645370882a3d905d68c44b5a7cef
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: crashed: INFO: task hung in usbdev_ioctl
run #8: crashed: INFO: task hung in usbdev_ioctl
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
testing release v6.14
testing commit 38fec10eb60d687e30c8c6b5420d86e8149f7557 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 2a9ea982f50f1150ba7c39a21d0026574a712a01405d95a1bca13ce0c906b68e
run #0: crashed: INFO: task hung in uevent_show
run #1: crashed: INFO: task hung in uevent_show
run #2: crashed: INFO: task hung in uevent_show
run #3: crashed: INFO: task hung in uevent_show
run #4: crashed: INFO: task hung in uevent_show
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in uevent_show, types: [HANG]
testing release v6.12
testing commit adc218676eef25575469234709c2d87185ca223a gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: fa55ad2f74efeb15157b75bdd19203822c44299fb2b9a45623b52894ffb35f38
run #0: crashed: INFO: task hung in uevent_show
run #1: crashed: INFO: task hung in uevent_show
run #2: crashed: INFO: task hung in uevent_show
run #3: crashed: INFO: task hung in uevent_show
run #4: crashed: INFO: task hung in uevent_show
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in uevent_show, types: [HANG]
testing release v6.10
testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: e56d7b13b233d82105f705dfddff60adbe85f00942800b2dad9e415538a7b95b
run #0: crashed: INFO: task hung in uevent_show
run #1: crashed: INFO: task hung in uevent_show
run #2: crashed: INFO: task hung in uevent_show
run #3: crashed: INFO: task hung in uevent_show
run #4: crashed: INFO: task hung in uevent_show
run #5: crashed: INFO: task hung in uevent_show
run #6: crashed: INFO: task hung in uevent_show
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in uevent_show, types: [HANG]
testing release v6.7
testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
failed building 0dd3ee31125508cd67f7e7172247f05b7fd1753a: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]
./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]
In file included from ./include/linux/mm.h::522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion]
./include/linux/vmstat.h:508:./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]
  43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]
eturn vmstat_tex./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]
      |                            ~~~~~~~~~~~~~~~~~~~~~ ^./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion]
VM_NUMA_EVENT_ITE./include/linux/vmstat.hMS +:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]
./include/linux/vmstat.h./include/linux/vmstat.h:536::43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]
.../include/linux/vmstat.h.:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion]
./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]
./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]
./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion]
...../include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion]+
testing release v6.4
testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: ca964eb871a437a6f098449757a533bac1656612c5a2cca88b8273636dcf9489
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
testing release v6.1
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: b6f3e9323330538a672a373f40173bf91f457fff910a71b2193be7f0f84ec6bf
all runs: boot failed: can't ssh into the instance
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.18
testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 18bc182ec0721d361d4778ae5707390bbe5ec3d0fbed62624e6e1225d8c90b45
all runs: boot failed: can't ssh into the instance
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.15
testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 94dd9184eb98c85fd91c41a6ef2f6ea1267880833a29b38c5e4adea72fb6b636
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
testing release v5.12
testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 925051c2e4e95aef628c0499f65c927f8b3b85866cb3fbd324bab67ea0773159
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: crashed: INFO: task hung in usbdev_ioctl
run #7: crashed: INFO: task hung in usbdev_ioctl
run #8: OK
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 248ce1bdc8161e0621614e82a121c815eda36daf97fba54823907bc2b98c2f08
run #0: crashed: INFO: task hung in usbdev_ioctl
run #1: crashed: INFO: task hung in usbdev_ioctl
run #2: crashed: INFO: task hung in usbdev_ioctl
run #3: crashed: INFO: task hung in usbdev_ioctl
run #4: crashed: INFO: task hung in usbdev_ioctl
run #5: crashed: INFO: task hung in usbdev_ioctl
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in usbdev_ioctl, types: [HANG]
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 039c3e13ddf341801280f03e2a4d60a9e8cf2c588b7f8c300c1412efbe0df376
all runs: boot failed: can't ssh into the instance
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.3
revisions tested: 22, total time: 13h21m40.222712653s (build: 8h38m59.159854574s, test: 3h31m36.037592932s)
error: bisection is taking too long (>12h0m0s), aborting