ci starts bisection 2024-04-08 02:18:04.268329016 +0000 UTC m=+161638.860412900
bisecting cause commit starting from fe46a7dd189e25604716c03576d05ac8a5209743
building syzkaller on ca620dd8f97f5b3a9134b687b5584203019518fb
ensuring issue is reproducible on original commit fe46a7dd189e25604716c03576d05ac8a5209743

testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1885f1e683166691c69956c7c54ee8e80c7db1bb2fa1e29cf2859c1d020f8edc
run #0: crashed: WARNING in sock_map_unref
run #1: crashed: WARNING in sock_map_unref
run #2: crashed: WARNING in sock_map_unref
run #3: crashed: WARNING in sock_map_unref
run #4: crashed: WARNING in sock_map_unref
run #5: crashed: WARNING in sock_map_unref
run #6: crashed: WARNING in sock_map_unref
run #7: crashed: WARNING in sock_map_unref
run #8: crashed: WARNING in sock_map_unref
run #9: crashed: WARNING in sock_map_unref
run #10: crashed: WARNING in sock_map_unref
run #11: crashed: WARNING in sock_map_unref
run #12: crashed: WARNING in sock_map_unref
run #13: crashed: WARNING in sock_map_unref
run #14: crashed: WARNING in sock_map_unref
run #15: crashed: WARNING in sock_map_unref
run #16: crashed: possible deadlock in scheduler_tick
run #17: crashed: WARNING in sock_map_unref
run #18: crashed: WARNING in sock_map_unref
run #19: crashed: WARNING in sock_map_unref
representative crash: WARNING in sock_map_unref, types: [WARNING]
check whether we can drop unnecessary instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2a532c9ad4bbc9ac2f3013101319d65a88143ebbe8903876e6e6070e2897bc7d
run #0: crashed: WARNING in sock_map_delete_elem
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: unregister_netdevice: waiting for DEV to become free
run #6: crashed: BUG: workqueue lockup
run #7: crashed: BUG: workqueue lockup
run #8: crashed: unregister_netdevice: waiting for DEV to become free
run #9: OK
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP UNKNOWN]
the bug reproduces without the instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
kconfig minimization: base=3940 full=7986 leaves diff=2024
split chunks (needed=false): <2024>
split chunk #0 of len 2024 into 5 parts
testing without sub-chunk 1/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 381ab00c1bae15c7d50c713a4c585bd13450d534ef49b5ddfdd4c1811d0341ff
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: workqueue lockup
run #8: crashed: BUG: spinlock recursion in try_to_wake_up
run #9: crashed: WARNING in sock_map_delete_elem
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 26b0e8fc48dc8862150d2ece7088f447d158b8f239e7ead185f126ec705b38d4
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: workqueue lockup
run #7: crashed: BUG: spinlock recursion in try_to_wake_up
run #8: crashed: BUG: spinlock recursion in try_to_wake_up
run #9: OK
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f35509683b88370a7dab1a22f16e610ced59748bc605f4b0e3f7f1397f056528
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: spinlock recursion in try_to_wake_up
run #8: crashed: BUG: workqueue lockup
run #9: crashed: BUG: workqueue lockup
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0c7abd13187fd187b28747a776f6acb8f26627668a2828d188893b37b9020c92
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: spinlock recursion in try_to_wake_up
run #8: crashed: BUG: workqueue lockup
run #9: crashed: BUG: workqueue lockup
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit fe46a7dd189e25604716c03576d05ac8a5209743 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3b0294a71d2800452a8dd8555dba17ae8c06173ebdf95da981454fc9daa68fcc
all runs: OK
false negative chance: 0.000
minimized to 404 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DVB_CORE EXTCON FB GPIOLIB HID_ZEROPLUS I2C_MUX IIO IOMMUFD IRQ_REMAP 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 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_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL 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_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T 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_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_GPIO_VBUS 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_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 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_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_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 VDPA_USER 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 WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_PURELIFI WLAN_VENDOR_SILABS X86_AMD_PSTATE 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 XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC]
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
picked [v6.8 v6.7 v6.6 v6.4 v6.2 v6.0 v5.18 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 31 release tags
testing release v6.8
testing commit e8f897f4afef0031fe618a8e94127a0934896aba gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 17d62c6e05d9480d101bac1d5861c5cbe23a9266c77c4e8364dd1a0e3b6a729d
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: workqueue lockup
run #8: crashed: BUG: workqueue lockup
run #9: crashed: BUG: workqueue lockup
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP UNKNOWN]
testing release v6.7
testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0ff69b436cdf18b8726f170d0eaacc74d9627c5afd7c982fa485a66928955359
all runs: crashed: BUG: spinlock recursion in try_to_wake_up
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
testing release v6.6
testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e497eb1471fd6274b6d49e19352087d560c0b06099b17b01e273fb4bf96a4c94
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: spinlock recursion in try_to_wake_up
run #8: crashed: BUG: workqueue lockup
run #9: crashed: BUG: workqueue lockup
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
testing release v6.4
testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 041b8d214f73dfa8f4cf69ece4674cd61457d55ec2c6da1ad81a52fe52302ac4
all runs: OK
false negative chance: 0.000
# git bisect start ffc253263a1375a65fa6c9f62a893e9767fbebfa 6995e2de6891c724bfeb2db33d7b87775f913ad1
Bisecting: 14974 revisions left to test after this (roughly 14 steps)
[692f5510159c79bfa312a4e27a15e266232bfb4c] Merge tag 'asoc-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

testing commit 692f5510159c79bfa312a4e27a15e266232bfb4c gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5a4b3964d06c23bd102e810e13f8d7d484ace58f1f3f256d534e85132aa86c62
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: OK
run #9: basic kernel testing failed: failed to copy binary to VM: timedout after 1m0s ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3754180280" "root@10.128.0.88:./syz-executor3754180280"]
Executing: program /usr/bin/ssh host 10.128.0.88, user root, command sftp
OpenSSH_9.2p1 Debian-2+deb12u1, OpenSSL 3.0.11 19 Sep 2023
debug1: Reading configuration data /dev/null
debug1: Connecting to 10.128.0.88 [10.128.0.88] port 22.
debug1: fd 3 clearing O_NONBLOCK
debug1: Connection established.
debug1: identity file /root/.ssh/id_rsa type -1
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa_sk type -1
debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: identity file /root/.ssh/id_ed25519_sk type -1
debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /root/.ssh/id_xmss type -1
debug1: identity file /root/.ssh/id_xmss-cert type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u1
debug1: Remote protocol version 2.0, remote software version OpenSSH_9.1
debug1: compat_banner: match: OpenSSH_9.1 pat OpenSSH* compat 0x04000000
debug1: Authenticating to 10.128.0.88:22 as 'root'
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: sntrup761x25519-sha512@openssh.com
debug1: kex: host key algorithm: ssh-ed25519
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY

false negative chance: 0.000
# git bisect good 692f5510159c79bfa312a4e27a15e266232bfb4c
Bisecting: 7105 revisions left to test after this (roughly 13 steps)
[0e72db77672ff4758a31fb5259c754a7bb229751] Merge tag 'soc-dt-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

testing commit 0e72db77672ff4758a31fb5259c754a7bb229751 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 70809d799e66e99c6a8d0f3e005f7e2b9a55a07e5ea4f761ec98c5fa3bfa7186
all runs: crashed: BUG: spinlock recursion in try_to_wake_up
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
# git bisect bad 0e72db77672ff4758a31fb5259c754a7bb229751
Bisecting: 3474 revisions left to test after this (roughly 12 steps)
[bd6c11bc43c496cddfc6cf603b5d45365606dbd5] Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

testing commit bd6c11bc43c496cddfc6cf603b5d45365606dbd5 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 168b37e5501255eea9b419f41f0c020cf3adc51c993614cdf45226fa2b8f8be2
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: spinlock recursion in try_to_wake_up
run #8: crashed: BUG: spinlock recursion in try_to_wake_up
run #9: crashed: BUG: workqueue lockup
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
# git bisect bad bd6c11bc43c496cddfc6cf603b5d45365606dbd5
Bisecting: 2176 revisions left to test after this (roughly 11 steps)
[bebfbf07c7db7321e26b6aae0d7078d3d1294464] Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

testing commit bebfbf07c7db7321e26b6aae0d7078d3d1294464 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 08d0cdad80f73f9267c0e0c5a843cbba141178b777e1843422e78c052791837f
all runs: OK
false negative chance: 0.000
# git bisect good bebfbf07c7db7321e26b6aae0d7078d3d1294464
Bisecting: 1060 revisions left to test after this (roughly 10 steps)
[ccc5e9817719f59b3dea7b7a168861b4bf0b4ff4] Merge tag 'pm-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

testing commit ccc5e9817719f59b3dea7b7a168861b4bf0b4ff4 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 12f171e2e1c9823d0226b0a88f91f0d7658d4cf630c7eb312f61973e208914f7
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: spinlock recursion in try_to_wake_up
run #8: crashed: BUG: spinlock recursion in try_to_wake_up
run #9: crashed: BUG: workqueue lockup
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
# git bisect bad ccc5e9817719f59b3dea7b7a168861b4bf0b4ff4
Bisecting: 570 revisions left to test after this (roughly 9 steps)
[727dbda16b83600379061c4ca8270ef3e2f51922] Merge tag 'hardening-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

testing commit 727dbda16b83600379061c4ca8270ef3e2f51922 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d4fc6eefff33bdac205995e4aa546f0025ec99fcacebdedcf1963b07ed0a8373
all runs: OK
false negative chance: 0.000
# git bisect good 727dbda16b83600379061c4ca8270ef3e2f51922
Bisecting: 255 revisions left to test after this (roughly 8 steps)
[e5b7ca09e9aa4d483ab84c5f2ba88f0cc7c66540] Merge tag 's390-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

testing commit e5b7ca09e9aa4d483ab84c5f2ba88f0cc7c66540 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e8ea09621af6f0889f46293d22737511fd48a927a937c68cfd1cd17a53f1eb09
all runs: crashed: BUG: spinlock recursion in try_to_wake_up
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
# git bisect bad e5b7ca09e9aa4d483ab84c5f2ba88f0cc7c66540
Bisecting: 160 revisions left to test after this (roughly 7 steps)
[42a7f6e3ffe06308c1ec43a7dac39a27de101574] Merge tag 'x86_microcode_for_v6.6_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

testing commit 42a7f6e3ffe06308c1ec43a7dac39a27de101574 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3c39bdf7d9888e421434f3f8dc170a7cdb3964f745eeccfa28eb70d4b9c0f9c5
all runs: OK
false negative chance: 0.000
# git bisect good 42a7f6e3ffe06308c1ec43a7dac39a27de101574
Bisecting: 79 revisions left to test after this (roughly 6 steps)
[3ca9a836ff53db8eb76d559764c07fb3b015886a] Merge tag 'sched-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

testing commit 3ca9a836ff53db8eb76d559764c07fb3b015886a gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 74c58065bf00d9458cf43afca025705cdf4911e0e8b5902f47550f26d49abaac
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: spinlock recursion in try_to_wake_up
run #8: crashed: BUG: workqueue lockup
run #9: crashed: BUG: workqueue lockup
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
# git bisect bad 3ca9a836ff53db8eb76d559764c07fb3b015886a
Bisecting: 40 revisions left to test after this (roughly 5 steps)
[4bdada79f3464d85f6e187213c088e7c934e0554] sched: Simplify sched_exec()

testing commit 4bdada79f3464d85f6e187213c088e7c934e0554 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c3050fa1edef1760733de131465ffc4aaf64d564d9f920c35caf7d41e125b10b
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: spinlock recursion in try_to_wake_up
run #8: crashed: BUG: workqueue lockup
run #9: crashed: BUG: workqueue lockup
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
# git bisect bad 4bdada79f3464d85f6e187213c088e7c934e0554
Bisecting: 19 revisions left to test after this (roughly 4 steps)
[147f3efaa24182a21706bca15eab2f3f4630b5fe] sched/fair: Implement an EEVDF-like scheduling policy

testing commit 147f3efaa24182a21706bca15eab2f3f4630b5fe gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 85bd2146c67ce2bb45733f7fde7039daf132ab25d597f9b25e6b1cce2f4e6433
run #0: crashed: BUG: spinlock recursion in try_to_wake_up
run #1: crashed: BUG: spinlock recursion in try_to_wake_up
run #2: crashed: BUG: spinlock recursion in try_to_wake_up
run #3: crashed: BUG: spinlock recursion in try_to_wake_up
run #4: crashed: BUG: spinlock recursion in try_to_wake_up
run #5: crashed: BUG: spinlock recursion in try_to_wake_up
run #6: crashed: BUG: spinlock recursion in try_to_wake_up
run #7: crashed: BUG: spinlock recursion in try_to_wake_up
run #8: crashed: BUG: spinlock recursion in try_to_wake_up
run #9: crashed: BUG: workqueue lockup
representative crash: BUG: spinlock recursion in try_to_wake_up, types: [LOCKDEP]
# git bisect bad 147f3efaa24182a21706bca15eab2f3f4630b5fe
Bisecting: 9 revisions left to test after this (roughly 3 steps)
[b1bfeab9b00283f521d2100afb9f5af84ccdae13] sched/fair: Consider the idle state of the whole core for load balance

testing commit b1bfeab9b00283f521d2100afb9f5af84ccdae13 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9fa080570b9c05846c20667a1da66dd8ac960adaee2899134a43571ee0d94887
all runs: OK
false negative chance: 0.000
# git bisect good b1bfeab9b00283f521d2100afb9f5af84ccdae13
Bisecting: 4 revisions left to test after this (roughly 2 steps)
[752182b24bf4ffda1c5a8025515d53122d930bd8] Merge tag 'v6.5-rc2' into sched/core, to pick up fixes

testing commit 752182b24bf4ffda1c5a8025515d53122d930bd8 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 81079a4e5510f5e44710c092bc05a802d405b8d1f2c922bc982c71dd8f4fcac6
all runs: OK
false negative chance: 0.000
# git bisect good 752182b24bf4ffda1c5a8025515d53122d930bd8
Bisecting: 2 revisions left to test after this (roughly 1 step)
[e0c2ff903c320d3fd3c2c604dc401b3b7c0a1d13] sched/fair: Remove sched_feat(START_DEBIT)

testing commit e0c2ff903c320d3fd3c2c604dc401b3b7c0a1d13 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e33ab86cd6d989fbb0f283624eb1208691c1cb4adf6b5b1c27d17f118a424273
run #0: crashed: BUG: spinlock recursion in update_blocked_averages
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: BUG: spinlock recursion in update_blocked_averages, types: [LOCKDEP]
# git bisect bad e0c2ff903c320d3fd3c2c604dc401b3b7c0a1d13
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[af4cf40470c22efa3987200fd19478199e08e103] sched/fair: Add cfs_rq::avg_vruntime

reproducer is flaky (0.55 repro chance estimate)
revisions tested: 25, total time: 12h24m55.86228023s (build: 7h27m35.668371349s, test: 4h36m22.179057184s)
error: bisection is taking too long (>12h0m0s), aborting