ci starts bisection 2024-03-17 07:06:14.774193795 +0000 UTC m=+138634.282403846 bisecting cause commit starting from ea80e3ed09ab2c2b75724faf5484721753e92c31 building syzkaller on d615901c739a765329b688494cee2f8e1b5037cb ensuring issue is reproducible on original commit ea80e3ed09ab2c2b75724faf5484721753e92c31 testing commit ea80e3ed09ab2c2b75724faf5484721753e92c31 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 10ebb1176973877b748184817619a5b886a58d763652a36c54e9f7c452121334 run #0: crashed: possible deadlock in rcu_report_exp_cpu_mult run #1: crashed: WARNING in validate_chain run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: WARNING in validate_chain run #5: crashed: possible deadlock in scheduler_tick run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: WARNING in validate_chain run #8: crashed: WARNING in validate_chain run #9: crashed: possible deadlock in hrtimer_run_queues run #10: crashed: possible deadlock in rcu_report_exp_cpu_mult run #11: crashed: possible deadlock in scheduler_tick run #12: crashed: possible deadlock in scheduler_tick run #13: crashed: WARNING in call_rcu run #14: crashed: possible deadlock in scheduler_tick run #15: crashed: WARNING in validate_chain run #16: crashed: possible deadlock in swake_up_one run #17: crashed: no output from test machine run #18: crashed: no output from test machine run #19: crashed: no output from test machine representative crash: possible deadlock in rcu_report_exp_cpu_mult, types: [LOCKDEP WARNING] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit ea80e3ed09ab2c2b75724faf5484721753e92c31 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9ab8a9ef13d5fa20a5e38f411ecdabb6478bbca0ff7bcd309899a002756080cf run #0: crashed: possible deadlock in rcu_report_exp_cpu_mult run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: possible deadlock in swake_up_one run #3: crashed: possible deadlock in rcu_report_exp_cpu_mult run #4: crashed: WARNING in call_rcu run #5: crashed: possible deadlock in rcu_report_exp_cpu_mult run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: possible deadlock in swake_up_one run #8: crashed: possible deadlock in rcu_report_exp_cpu_mult run #9: crashed: possible deadlock in rcu_report_exp_cpu_mult representative crash: possible deadlock in rcu_report_exp_cpu_mult, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN KASAN ATOMIC_SLEEP], they are not needed kconfig minimization: base=3937 full=7972 leaves diff=2020 split chunks (needed=false): <2020> split chunk #0 of len 2020 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN KASAN ATOMIC_SLEEP HANG], they are not needed testing commit ea80e3ed09ab2c2b75724faf5484721753e92c31 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 55b53b37ac64cc91883eb44066da57a3300569f07fd17e2bb62e15e9fe71e846 run #0: crashed: possible deadlock in try_to_wake_up run #1: crashed: WARNING in sock_hash_delete_elem run #2: crashed: WARNING in sock_hash_delete_elem run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: WARNING in sock_hash_delete_elem run #5: crashed: possible deadlock in scheduler_tick run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: possible deadlock in scheduler_tick run #9: crashed: no output from test machine representative crash: possible deadlock in try_to_wake_up, types: [LOCKDEP WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit ea80e3ed09ab2c2b75724faf5484721753e92c31 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ac43f4dbfc3120e21abdd3611c3a7d9691de33e69cf575644ffe41b014074ad3 run #0: crashed: possible deadlock in swake_up_one run #1: crashed: WARNING in call_rcu run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: WARNING in call_rcu run #5: crashed: WARNING in call_rcu run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: possible deadlock in scheduler_tick run #9: crashed: possible deadlock in scheduler_tick representative crash: possible deadlock in swake_up_one, types: [LOCKDEP WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit ea80e3ed09ab2c2b75724faf5484721753e92c31 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 57c369b3d5941588f72ea04e0f6d2f5d7f248f1eb11bdb93d73128a7b39f7dd9 run #0: crashed: WARNING in load_balance run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: possible deadlock in scheduler_tick run #5: crashed: possible deadlock in swake_up_one run #6: crashed: WARNING in corrupted run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: possible deadlock in scheduler_tick run #9: crashed: possible deadlock in console_flush_all representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit ea80e3ed09ab2c2b75724faf5484721753e92c31 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2951faf2ae945de329d8bb80c3eb8c693d7f6d548478c198ba4b0da5015352cb run #0: crashed: WARNING in sock_hash_delete_elem run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: WARNING in sock_hash_delete_elem run #4: crashed: WARNING in sock_hash_delete_elem run #5: crashed: WARNING in call_rcu run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: possible deadlock in rcu_report_exp_cpu_mult run #9: crashed: possible deadlock in scheduler_tick representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit ea80e3ed09ab2c2b75724faf5484721753e92c31 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 799ca58223f20b822242d55ead65674bcc30affd687c0d12d84a65fe472ff644 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 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_CMDLINE 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_NOMODESET 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_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 [LEAK UBSAN KASAN ATOMIC_SLEEP HANG], 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: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 858e91202b997f06346756e665ec555e159c9ea95de284d834724688165a486f run #0: crashed: possible deadlock in rcu_report_exp_cpu_mult run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: WARNING in sock_hash_delete_elem run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: possible deadlock in scheduler_tick run #5: crashed: possible deadlock in scheduler_tick run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: possible deadlock in swake_up_one run #9: crashed: possible deadlock in scheduler_tick representative crash: possible deadlock in rcu_report_exp_cpu_mult, types: [LOCKDEP] testing release v6.7 testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e7066bba9a1d4ac6973010a6a243b424a6ca93b1518b0989adc063fc77afae9c run #0: crashed: possible deadlock in scheduler_tick run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: WARNING in call_rcu run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: possible deadlock in scheduler_tick run #5: crashed: WARNING in sock_hash_delete_elem run #6: crashed: WARNING in sock_hash_delete_elem run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: WARNING in call_rcu run #9: crashed: no output from test machine representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP WARNING] testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 22854241dc932bdb61ebc59adaa1bb1176de479d5b03cd60ce510972d1d8c7b4 run #0: crashed: possible deadlock in swake_up_one run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: possible deadlock in rcu_report_exp_cpu_mult run #3: crashed: possible deadlock in hrtimer_run_queues run #4: crashed: possible deadlock in scheduler_tick run #5: crashed: possible deadlock in scheduler_tick run #6: crashed: possible deadlock in swake_up_one run #7: crashed: possible deadlock in hrtimer_run_queues run #8: crashed: possible deadlock in hrtimer_run_queues run #9: crashed: possible deadlock in scheduler_tick representative crash: possible deadlock in swake_up_one, types: [LOCKDEP] testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee3b63202e6c77442b8fc2263b863e7cee9eaef81370cfc44fc8d1a848012669 run #0: crashed: possible deadlock in scheduler_tick run #1: crashed: WARNING in validate_chain run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: WARNING in validate_chain run #4: crashed: WARNING in sock_hash_delete_elem run #5: crashed: WARNING in validate_chain run #6: crashed: possible deadlock in hrtimer_run_queues run #7: crashed: possible deadlock in swake_up_one run #8: crashed: WARNING in sock_hash_delete_elem run #9: crashed: possible deadlock in scheduler_tick representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP WARNING] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1da41ae4f0b6e4d0d37bb6539fc7a194d5e93490c6f471d870576f301d61a13c run #0: crashed: possible deadlock in scheduler_tick run #1: crashed: WARNING in validate_chain run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: WARNING in sock_hash_delete_elem run #4: crashed: WARNING in sock_hash_delete_elem run #5: crashed: possible deadlock in swake_up_one run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: WARNING in sock_hash_delete_elem run #8: crashed: possible deadlock in scheduler_tick run #9: crashed: possible deadlock in scheduler_tick representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP WARNING] testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e0c33656a52fce805fe1216aa9f70d0629bdc94a57d0dd584c7b31352362523a run #0: crashed: WARNING in validate_chain run #1: crashed: WARNING in sock_hash_delete_elem run #2: crashed: WARNING in sock_hash_delete_elem run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: possible deadlock in scheduler_tick run #5: crashed: possible deadlock in scheduler_tick run #6: crashed: WARNING in validate_chain run #7: crashed: WARNING in validate_chain run #8: crashed: possible deadlock in scheduler_tick run #9: crashed: possible deadlock in rcu_report_exp_cpu_mult representative crash: WARNING in validate_chain, types: [WARNING LOCKDEP] testing release v5.18 testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 152f691fa8e075c47539f91dfad48edea14366eebb132083873c507015790fbc all runs: OK false negative chance: 0.000 # git bisect start 4fe89d07dcc2804c8b562f6c7896a45643d34b2f 4b0986a3613c92f4ec1bdc7f60ec66fea135991f Bisecting: 16503 revisions left to test after this (roughly 14 steps) [0fac198def2b41138850867b6aa92044c76ff802] Merge tag 'fs.idmapped.overlay.acl.v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux testing commit 0fac198def2b41138850867b6aa92044c76ff802 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2b583677ecceb8f12323a43c9483fe9d64d16c82536b4f8544df6718f93f0100 run #0: crashed: possible deadlock in scheduler_tick run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: WARNING in validate_chain run #5: crashed: WARNING in validate_chain run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: possible deadlock in swake_up_one run #9: crashed: possible deadlock in scheduler_tick representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP] # git bisect bad 0fac198def2b41138850867b6aa92044c76ff802 Bisecting: 8573 revisions left to test after this (roughly 13 steps) [c011dd537ffe47462051930413fed07dbdc80313] Merge tag 'arm-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit c011dd537ffe47462051930413fed07dbdc80313 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cf9f2967d99a5c46e043b2b7b95ca0dc5596b6e306ef80e483f557be0accb529 run #0: crashed: WARNING in validate_chain run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: possible deadlock in rcu_report_exp_cpu_mult run #4: crashed: possible deadlock in swake_up_one run #5: crashed: WARNING in validate_chain run #6: crashed: WARNING in validate_chain run #7: crashed: WARNING in corrupted run #8: crashed: possible deadlock in scheduler_tick run #9: crashed: no output from test machine representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP WARNING] # git bisect bad c011dd537ffe47462051930413fed07dbdc80313 Bisecting: 2961 revisions left to test after this (roughly 12 steps) [7e062cda7d90543ac8c7700fc7c5527d0c0f22ad] Merge tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 7e062cda7d90543ac8c7700fc7c5527d0c0f22ad gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3a8cf260cba34293739fd4a4b7f41865c003e8965c596843d0e3fc5bf7290424 run #0: crashed: possible deadlock in scheduler_tick run #1: crashed: WARNING in validate_chain run #2: crashed: WARNING in sock_hash_delete_elem run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: possible deadlock in scheduler_tick run #5: crashed: possible deadlock in scheduler_tick run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: WARNING in sock_hash_delete_elem run #8: crashed: possible deadlock in scheduler_tick run #9: crashed: no output from test machine representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP WARNING] # git bisect bad 7e062cda7d90543ac8c7700fc7c5527d0c0f22ad Bisecting: 2538 revisions left to test after this (roughly 11 steps) [3842007b1a33589d57f67eac479b132b77767514] Merge tag 'zonefs-5.19-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs testing commit 3842007b1a33589d57f67eac479b132b77767514 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5ce92367b8a3f2bb173e1e3f2aa42004a5c8e2955ec1821b5d09ed2a5ab16a17 run #0: crashed: possible deadlock in console_lock_spinning_enable run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: WARNING in validate_chain run #3: crashed: WARNING in sock_hash_delete_elem run #4: crashed: WARNING in validate_chain run #5: crashed: possible deadlock in scheduler_tick run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: WARNING in sock_hash_delete_elem run #9: crashed: WARNING in validate_chain representative crash: possible deadlock in console_lock_spinning_enable, types: [LOCKDEP WARNING] # git bisect bad 3842007b1a33589d57f67eac479b132b77767514 Bisecting: 1204 revisions left to test after this (roughly 10 steps) [22922deae13fc8d3769790c2eb388e9afce9771d] Merge tag 'objtool-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 22922deae13fc8d3769790c2eb388e9afce9771d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6330f9864e346832d17b85bebbec37e255df13dc2a9b2086df8d3673338936d8 run #0: crashed: possible deadlock in scheduler_tick run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: possible deadlock in hrtimer_run_queues run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: possible deadlock in scheduler_tick run #5: crashed: possible deadlock in scheduler_tick run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: WARNING in sock_hash_delete_elem run #9: crashed: possible deadlock in rcu_report_exp_cpu_mult representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP] # git bisect bad 22922deae13fc8d3769790c2eb388e9afce9771d Bisecting: 605 revisions left to test after this (roughly 9 steps) [03e1ccd45fa70904e43ddceda140854d22b7e871] Merge tag 'x86-irq-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 03e1ccd45fa70904e43ddceda140854d22b7e871 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 30435f27ba82f8ac48888d62ef7fc11b9eaa44f4667111026d3c0b264f44f029 all runs: OK false negative chance: 0.000 # git bisect good 03e1ccd45fa70904e43ddceda140854d22b7e871 Bisecting: 311 revisions left to test after this (roughly 8 steps) [d61306047533eb6f63a7bd51dfa7f868503bf0ba] Merge tag 'for-linus-5.19-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip testing commit d61306047533eb6f63a7bd51dfa7f868503bf0ba gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 91aef02d9f3c830385f01f6c73d7a0d1bc6c96165ed9cff38459b8a75807f898 all runs: OK false negative chance: 0.000 # git bisect good d61306047533eb6f63a7bd51dfa7f868503bf0ba Bisecting: 161 revisions left to test after this (roughly 7 steps) [0616ea3f1b93a99264d84f3d002ae117f6526b62] Merge branch 'for-next/esr-elx-64-bit' into for-next/core testing commit 0616ea3f1b93a99264d84f3d002ae117f6526b62 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cd7b344626add052e2c7c924559a1b039db5f043d6072e2bddf2f7abe8e6bec4 all runs: OK false negative chance: 0.000 # git bisect good 0616ea3f1b93a99264d84f3d002ae117f6526b62 Bisecting: 102 revisions left to test after this (roughly 6 steps) [67c642e0d9aa927c1340638e472f2467fefd1dbf] Merge tag 'csky-for-linus-5.19-rc1' of https://github.com/c-sky/csky-linux testing commit 67c642e0d9aa927c1340638e472f2467fefd1dbf gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9765e4a9d6bb4f110ee1513f74bcf6c71043dfe156fad57d2bf7c2dae77ce6be all runs: OK false negative chance: 0.000 # git bisect good 67c642e0d9aa927c1340638e472f2467fefd1dbf Bisecting: 53 revisions left to test after this (roughly 6 steps) [95fbef17e8253775876a08ec2011d3665b86a55f] Merge tag 's390-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux testing commit 95fbef17e8253775876a08ec2011d3665b86a55f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 29a76181dc3cb32fa00df4733c3317cf64bc883dd5172dedb0bd73db7979f472 all runs: OK false negative chance: 0.000 # git bisect good 95fbef17e8253775876a08ec2011d3665b86a55f Bisecting: 24 revisions left to test after this (roughly 5 steps) [2319be135672f6e45aa937bceaae6c2668c7867c] Merge tag 'locking-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 2319be135672f6e45aa937bceaae6c2668c7867c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7d4c52662846e06290baa1346f175c17a34a73d93893ffe201d80997698761eb run #0: crashed: WARNING in sock_hash_delete_elem run #1: crashed: WARNING in validate_chain run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: possible deadlock in swake_up_one run #4: crashed: possible deadlock in scheduler_tick run #5: crashed: WARNING in validate_chain run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: WARNING in sock_hash_delete_elem run #8: crashed: WARNING in corrupted run #9: crashed: WARNING in validate_chain representative crash: WARNING in sock_hash_delete_elem, types: [WARNING LOCKDEP] # git bisect bad 2319be135672f6e45aa937bceaae6c2668c7867c Bisecting: 14 revisions left to test after this (roughly 4 steps) [0aa7be05d83cc584da0782405e8007e351dfb6cc] locking/atomic: Add generic try_cmpxchg64 support testing commit 0aa7be05d83cc584da0782405e8007e351dfb6cc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c841cd2e2942a6075831064b6e365572cc0be5d884dc028f0a3db98a57fbc9e6 run #0: crashed: WARNING in sock_hash_delete_elem run #1: crashed: possible deadlock in rcu_report_exp_cpu_mult run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: WARNING in sock_hash_delete_elem run #5: crashed: WARNING in sock_hash_delete_elem run #6: crashed: WARNING in validate_chain run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: WARNING in validate_chain run #9: crashed: WARNING in validate_chain representative crash: WARNING in sock_hash_delete_elem, types: [WARNING LOCKDEP] # git bisect bad 0aa7be05d83cc584da0782405e8007e351dfb6cc Bisecting: 6 revisions left to test after this (roughly 3 steps) [1ee326196c66583006b0c95356a4b7dc51bf3531] locking/rwsem: Always try to wake waiters in out_nolock path testing commit 1ee326196c66583006b0c95356a4b7dc51bf3531 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c5d6ad7667fc5f0c45b2d027801909933370cc85219c73b77c1b55f6bdea1b0a all runs: OK false negative chance: 0.000 # git bisect good 1ee326196c66583006b0c95356a4b7dc51bf3531 Bisecting: 3 revisions left to test after this (roughly 2 steps) [dc1f7893a70fe403983bd8492f177bf993940e2c] locking/mutex: Make contention tracepoints more consistent wrt adaptive spinning testing commit dc1f7893a70fe403983bd8492f177bf993940e2c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7486705fab4baba51749c4c0fb63b8c40443ef2b257888a6457402b4e268109b run #0: crashed: WARNING in validate_chain run #1: crashed: possible deadlock in rcu_report_exp_cpu_mult run #2: crashed: WARNING in try_to_wake_up run #3: crashed: possible deadlock in swake_up_one run #4: crashed: WARNING in validate_chain run #5: crashed: possible deadlock in rcu_report_exp_cpu_mult run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: possible deadlock in scheduler_tick run #8: crashed: WARNING in sock_hash_delete_elem run #9: crashed: possible deadlock in scheduler_tick representative crash: possible deadlock in rcu_report_exp_cpu_mult, types: [LOCKDEP WARNING] # git bisect bad dc1f7893a70fe403983bd8492f177bf993940e2c Bisecting: 0 revisions left to test after this (roughly 1 step) [ee042be16cb455116d0fe99b77c6bc8baf87c8c6] locking: Apply contention tracepoints in the slow path testing commit ee042be16cb455116d0fe99b77c6bc8baf87c8c6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d510e2b8def8f5d2f97bff3f3d352e5546679ae811ffdde69f755bdccd98c4f8 run #0: crashed: possible deadlock in scheduler_tick run #1: crashed: possible deadlock in scheduler_tick run #2: crashed: possible deadlock in scheduler_tick run #3: crashed: possible deadlock in scheduler_tick run #4: crashed: possible deadlock in scheduler_tick run #5: crashed: possible deadlock in scheduler_tick run #6: crashed: possible deadlock in scheduler_tick run #7: crashed: WARNING in sock_hash_delete_elem run #8: crashed: possible deadlock in scheduler_tick run #9: crashed: possible deadlock in scheduler_tick representative crash: possible deadlock in scheduler_tick, types: [LOCKDEP] # git bisect bad ee042be16cb455116d0fe99b77c6bc8baf87c8c6 Bisecting: 0 revisions left to test after this (roughly 0 steps) [16edd9b511a13e7760ed4b92ba4e39bacda5c86f] locking: Add lock contention tracepoints testing commit 16edd9b511a13e7760ed4b92ba4e39bacda5c86f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 210a2ea0c60abaeab943159a583826bff4f33aecee87f7b7249c4edd36a54bdd all runs: OK false negative chance: 0.000 # git bisect good 16edd9b511a13e7760ed4b92ba4e39bacda5c86f ee042be16cb455116d0fe99b77c6bc8baf87c8c6 is the first bad commit commit ee042be16cb455116d0fe99b77c6bc8baf87c8c6 Author: Namhyung Kim Date: Tue Mar 22 11:57:09 2022 -0700 locking: Apply contention tracepoints in the slow path Adding the lock contention tracepoints in various lock function slow paths. Note that each arch can define spinlock differently, I only added it only to the generic qspinlock for now. Signed-off-by: Namhyung Kim Signed-off-by: Peter Zijlstra (Intel) Tested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Link: https://lkml.kernel.org/r/20220322185709.141236-3-namhyung@kernel.org kernel/locking/mutex.c | 3 +++ kernel/locking/percpu-rwsem.c | 5 +++++ kernel/locking/qrwlock.c | 9 +++++++++ kernel/locking/qspinlock.c | 5 +++++ kernel/locking/rtmutex.c | 11 +++++++++++ kernel/locking/rwbase_rt.c | 7 +++++++ kernel/locking/rwsem.c | 9 +++++++++ kernel/locking/semaphore.c | 15 ++++++++++++++- 8 files changed, 63 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: d510e2b8def8f5d2f97bff3f3d352e5546679ae811ffdde69f755bdccd98c4f8 parent signature: 210a2ea0c60abaeab943159a583826bff4f33aecee87f7b7249c4edd36a54bdd revisions tested: 30, total time: 11h12m16.767822066s (build: 5h13m11.580032145s, test: 5h35m17.765054412s) first bad commit: ee042be16cb455116d0fe99b77c6bc8baf87c8c6 locking: Apply contention tracepoints in the slow path recipients (to): ["42.hyeyoo@gmail.com" "namhyung@kernel.org" "peterz@infradead.org"] recipients (cc): [] crash: possible deadlock in scheduler_tick ===================================================== WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected 5.18.0-rc1-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor.0/2048 [HC0[0]:SC0[2]:HE0:SE0] is trying to acquire: ffff888100e2d420 (&htab->buckets[i].lock){+...}-{2:2}, at: sock_hash_delete_elem+0x4c/0xe0 net/core/sock_map.c:920 and this task is already holding: ffff888237d2d8d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline] ffff888237d2d8d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1303 [inline] ffff888237d2d8d8 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1601 [inline] ffff888237d2d8d8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x156/0xa60 kernel/sched/core.c:6296 which would create a new lock dependency: (&rq->__lock){-.-.}-{2:2} -> (&htab->buckets[i].lock){+...}-{2:2} but this new dependency connects a HARDIRQ-irq-safe lock: (&rq->__lock){-.-.}-{2:2} ... which became HARDIRQ-irq-safe at: lock_acquire+0x101/0x2f0 kernel/locking/lockdep.c:5634 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline] raw_spin_rq_lock kernel/sched/sched.h:1303 [inline] rq_lock kernel/sched/sched.h:1601 [inline] scheduler_tick+0x4a/0x120 kernel/sched/core.c:5339 update_process_times+0xa3/0xb0 kernel/time/timer.c:1790 tick_periodic+0xcb/0xe0 kernel/time/tick-common.c:100 tick_handle_periodic+0x1e/0x80 kernel/time/tick-common.c:112 timer_interrupt+0x13/0x20 arch/x86/kernel/time.c:57 __handle_irq_event_percpu+0xf1/0x390 kernel/irq/handle.c:158 handle_irq_event_percpu kernel/irq/handle.c:193 [inline] handle_irq_event+0x30/0x70 kernel/irq/handle.c:210 handle_edge_irq+0xd4/0x1f0 kernel/irq/chip.c:817 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline] handle_irq arch/x86/kernel/irq.c:231 [inline] __common_interrupt+0xa4/0x150 arch/x86/kernel/irq.c:250 common_interrupt+0xa5/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x22/0x40 console_unlock+0x5eb/0x7c0 kernel/printk/printk.c:2779 vprintk_emit+0x80/0x160 kernel/printk/printk.c:2272 _printk+0x58/0x72 kernel/printk/printk.c:2293 landlock_init+0x26/0x29 security/landlock/setup.c:32 initialize_lsm+0x24/0x54 security/security.c:237 ordered_lsm_init+0x204/0x227 security/security.c:361 security_init+0x40/0x46 security/security.c:407 start_kernel+0x30d/0x3e0 init/main.c:1118 secondary_startup_64_no_verify+0xc4/0xcb to a HARDIRQ-irq-unsafe lock: (&htab->buckets[i].lock){+...}-{2:2} ... which became HARDIRQ-irq-unsafe at: ... lock_acquire+0x101/0x2f0 kernel/locking/lockdep.c:5634 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 sock_hash_free+0x8e/0x290 net/core/sock_map.c:1137 process_one_work+0x286/0x5b0 kernel/workqueue.c:2289 worker_thread+0x244/0x3f0 kernel/workqueue.c:2436 kthread+0xe5/0x100 kernel/kthread.c:376 ret_from_fork+0x22/0x30 other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&htab->buckets[i].lock); local_irq_disable(); lock(&rq->__lock); lock(&htab->buckets[i].lock); lock(&rq->__lock); *** DEADLOCK *** 2 locks held by syz-executor.0/2048: #0: ffff888237d2d8d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline] #0: ffff888237d2d8d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1303 [inline] #0: ffff888237d2d8d8 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1601 [inline] #0: ffff888237d2d8d8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x156/0xa60 kernel/sched/core.c:6296 #1: ffffffff83185f30 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 include/trace/events/initcall.h:48 the dependencies between HARDIRQ-irq-safe lock and the holding lock: -> (&rq->__lock){-.-.}-{2:2} { IN-HARDIRQ-W at: lock_acquire+0x101/0x2f0 kernel/locking/lockdep.c:5634 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline] raw_spin_rq_lock kernel/sched/sched.h:1303 [inline] rq_lock kernel/sched/sched.h:1601 [inline] scheduler_tick+0x4a/0x120 kernel/sched/core.c:5339 update_process_times+0xa3/0xb0 kernel/time/timer.c:1790 tick_periodic+0xcb/0xe0 kernel/time/tick-common.c:100 tick_handle_periodic+0x1e/0x80 kernel/time/tick-common.c:112 timer_interrupt+0x13/0x20 arch/x86/kernel/time.c:57 __handle_irq_event_percpu+0xf1/0x390 kernel/irq/handle.c:158 handle_irq_event_percpu kernel/irq/handle.c:193 [inline] handle_irq_event+0x30/0x70 kernel/irq/handle.c:210 handle_edge_irq+0xd4/0x1f0 kernel/irq/chip.c:817 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline] handle_irq arch/x86/kernel/irq.c:231 [inline] __common_interrupt+0xa4/0x150 arch/x86/kernel/irq.c:250 common_interrupt+0xa5/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x22/0x40 console_unlock+0x5eb/0x7c0 kernel/printk/printk.c:2779 vprintk_emit+0x80/0x160 kernel/printk/printk.c:2272 _printk+0x58/0x72 kernel/printk/printk.c:2293 landlock_init+0x26/0x29 security/landlock/setup.c:32 initialize_lsm+0x24/0x54 security/security.c:237 ordered_lsm_init+0x204/0x227 security/security.c:361 security_init+0x40/0x46 security/security.c:407 start_kernel+0x30d/0x3e0 init/main.c:1118 secondary_startup_64_no_verify+0xc4/0xcb IN-SOFTIRQ-W at: lock_acquire+0x101/0x2f0 kernel/locking/lockdep.c:5634 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline] raw_spin_rq_lock kernel/sched/sched.h:1303 [inline] rq_lock kernel/sched/sched.h:1601 [inline] ttwu_queue kernel/sched/core.c:3873 [inline] try_to_wake_up+0x25f/0x530 kernel/sched/core.c:4198 call_timer_fn+0xe5/0x340 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers+0x16a/0x200 kernel/time/timer.c:1734 run_timer_softirq+0x1f/0x40 kernel/time/timer.c:1747 __do_softirq+0x205/0x51e kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0xb2/0x140 kernel/softirq.c:637 irq_exit_rcu+0x9/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x97/0xb0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x16/0x20 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] default_idle+0x13/0x20 arch/x86/kernel/process.c:733 default_idle_call+0x4f/0x90 kernel/sched/idle.c:109 cpuidle_idle_call kernel/sched/idle.c:191 [inline] do_idle+0xee/0x290 kernel/sched/idle.c:303 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:400 start_kernel+0x35d/0x3e0 init/main.c:1140 secondary_startup_64_no_verify+0xc4/0xcb INITIAL USE at: lock_acquire+0x101/0x2f0 kernel/locking/lockdep.c:5634 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0x1f/0x30 kernel/sched/core.c:554 raw_spin_rq_lock kernel/sched/sched.h:1303 [inline] _raw_spin_rq_lock_irqsave kernel/sched/sched.h:1322 [inline] rq_attach_root+0x51/0x1b0 kernel/sched/topology.c:469 sched_init+0x30a/0x476 kernel/sched/core.c:9578 start_kernel+0x185/0x3e0 init/main.c:998 secondary_startup_64_no_verify+0xc4/0xcb } ... key at: [] sched_init.__key+0x0/0x10 the dependencies between the lock to be acquired and HARDIRQ-irq-unsafe lock: -> (&htab->buckets[i].lock){+...}-{2:2} { HARDIRQ-ON-W at: lock_acquire+0x101/0x2f0 kernel/locking/lockdep.c:5634 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 sock_hash_free+0x8e/0x290 net/core/sock_map.c:1137 process_one_work+0x286/0x5b0 kernel/workqueue.c:2289 worker_thread+0x244/0x3f0 kernel/workqueue.c:2436 kthread+0xe5/0x100 kernel/kthread.c:376 ret_from_fork+0x22/0x30 INITIAL USE at: lock_acquire+0x101/0x2f0 kernel/locking/lockdep.c:5634 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 sock_hash_free+0x8e/0x290 net/core/sock_map.c:1137 process_one_work+0x286/0x5b0 kernel/workqueue.c:2289 worker_thread+0x244/0x3f0 kernel/workqueue.c:2436 kthread+0xe5/0x100 kernel/kthread.c:376 ret_from_fork+0x22/0x30 } ... key at: [] sock_hash_alloc.__key+0x0/0x10 ... acquired at: lock_acquire+0x101/0x2f0 kernel/locking/lockdep.c:5634 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 sock_hash_delete_elem+0x4c/0xe0 net/core/sock_map.c:920 ____bpf_map_delete_elem kernel/bpf/helpers.c:69 [inline] bpf_map_delete_elem+0x31/0x40 kernel/bpf/helpers.c:66 ___bpf_prog_run+0x13ea/0x1b70 kernel/bpf/core.c:1835 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2062 bpf_dispatcher_nop_func include/linux/bpf.h:804 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2022 [inline] bpf_trace_run2+0x88/0x140 kernel/trace/bpf_trace.c:2059 trace_contention_end+0xb7/0xe0 include/trace/events/lock.h:120 __pv_queued_spin_lock_slowpath+0x381/0x3c0 kernel/locking/qspinlock.c:560 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath+0x11/0x20 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x8f/0xa0 kernel/locking/spinlock_debug.c:115 raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline] raw_spin_rq_lock kernel/sched/sched.h:1303 [inline] rq_lock kernel/sched/sched.h:1601 [inline] __schedule+0x156/0xa60 kernel/sched/core.c:6296 preempt_schedule_common kernel/sched/core.c:6547 [inline] __cond_resched+0x34/0x90 kernel/sched/core.c:8154 dentry_kill+0x62/0x120 dput+0xca/0x170 fs/dcache.c:913 __fput+0x16f/0x210 fs/file_table.c:330 task_work_run+0x66/0xa0 kernel/task_work.c:164 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xcd/0xe0 kernel/entry/common.c:169 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x62/0x2a0 kernel/entry/common.c:294 do_syscall_64+0x55/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae stack backtrace: CPU: 1 PID: 2048 Comm: syz-executor.0 Not tainted 5.18.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xdb lib/dump_stack.c:106 print_bad_irq_dependency kernel/locking/lockdep.c:2578 [inline] check_irq_usage kernel/locking/lockdep.c:2817 [inline] check_prev_add kernel/locking/lockdep.c:3068 [inline] check_prevs_add kernel/locking/lockdep.c:3183 [inline] validate_chain+0x20a2/0x20e0 kernel/locking/lockdep.c:3798 __lock_acquire+0x8d8/0xb30 kernel/locking/lockdep.c:5022 lock_acquire+0x101/0x2f0 kernel/locking/lockdep.c:5634 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 sock_hash_delete_elem+0x4c/0xe0 net/core/sock_map.c:920 ____bpf_map_delete_elem kernel/bpf/helpers.c:69 [inline] bpf_map_delete_elem+0x31/0x40 kernel/bpf/helpers.c:66 ___bpf_prog_run+0x13ea/0x1b70 kernel/bpf/core.c:1835 __bpf_prog_run32+0xbb/0xe0 kernel/bpf/core.c:2062 bpf_dispatcher_nop_func include/linux/bpf.h:804 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2022 [inline] bpf_trace_run2+0x88/0x140 kernel/trace/bpf_trace.c:2059 trace_contention_end+0xb7/0xe0 include/trace/events/lock.h:120 __pv_queued_spin_lock_slowpath+0x381/0x3c0 kernel/locking/qspinlock.c:560 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath+0x11/0x20 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x8f/0xa0 kernel/locking/spinlock_debug.c:115 raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline] raw_spin_rq_lock kernel/sched/sched.h:1303 [inline] rq_lock kernel/sched/sched.h:1601 [inline] __schedule+0x156/0xa60 kernel/sched/core.c:6296 preempt_schedule_common kernel/sched/core.c:6547 [inline] __cond_resched+0x34/0x90 kernel/sched/core.c:8154 dentry_kill+0x62/0x120 dput+0xca/0x170 fs/dcache.c:913 __fput+0x16f/0x210 fs/file_table.c:330 task_work_run+0x66/0xa0 kernel/task_work.c:164 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xcd/0xe0 kernel/entry/common.c:169 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x62/0x2a0 kernel/entry/common.c:294 do_syscall_64+0x55/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x559c94b6cc9a Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24 RSP: 002b:00007fffec5681b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000559c94b6cc9a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000226 R08: 0000001b2c160000 R09: 0000559c94c9bf8c R10: 00007fffec568300 R11: 0000000000000293 R12: 00007f8f72f15910 R13: ffffffffffffffff R14: 00007f8f72f15000 R15: 000000000000b3b2