ci starts bisection 2024-07-24 08:13:57.757625071 +0000 UTC m=+29665.730392587 bisecting fixing commit since c942a0cd3603e34dd2d7237e064d9318cb7f9654 building syzkaller on 059e99634d85e743d0e9fc4ca38805b8248a049f ensuring issue is reproducible on original commit c942a0cd3603e34dd2d7237e064d9318cb7f9654 testing commit c942a0cd3603e34dd2d7237e064d9318cb7f9654 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: db496a6dac25ad9f09a27646ababa190f0d9e765d3530f60959309a94e7a23dd all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit c942a0cd3603e34dd2d7237e064d9318cb7f9654 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc26c5290eef28c362f9f61a806ae20e8520b0c9cdd5dadd40e46874d0779edb all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=4001 full=8005 leaves diff=2008 split chunks (needed=false): <2008> split chunk #0 of len 2008 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit c942a0cd3603e34dd2d7237e064d9318cb7f9654 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 410ad8cceed47d739eec94b841bfa8d38c1f4773e737262a3582a1679dae6c1b all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit c942a0cd3603e34dd2d7237e064d9318cb7f9654 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f7da0d3bb886fb29eab7a7749c6834ab96007085384922b4124deec8ad7eb0d7 all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit c942a0cd3603e34dd2d7237e064d9318cb7f9654 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 67e30d692c8f21945addda8b7bd60799a07c2b507dea86a13247f30726d915b0 all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit c942a0cd3603e34dd2d7237e064d9318cb7f9654 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c5aa70775332b6143fd3e8ec27240f2ce337234bf2def060a7ca66bf9431aa0f all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit c942a0cd3603e34dd2d7237e064d9318cb7f9654 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 017756673c71caee67e8d0226ca65a3319c7950fcf0469ea1b02c1444592d1cd run #0: crashed: lost connection to test machine run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: lost connection to test machine, types: [UNKNOWN] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 minimized to 400 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_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_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_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 [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing current HEAD 786c8248dbd33a5a7a07f7c6e55a7bfc68d2ca48 testing commit 786c8248dbd33a5a7a07f7c6e55a7bfc68d2ca48 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3c0643db7025f9bfb4d2565ce4802bfc6198d5c8d6f72b0b58083a96ae266f3e all runs: OK false negative chance: 0.000 # git bisect start 786c8248dbd33a5a7a07f7c6e55a7bfc68d2ca48 c942a0cd3603e34dd2d7237e064d9318cb7f9654 Bisecting: 13766 revisions left to test after this (roughly 14 steps) [dc772f8237f9b0c9ea3f34d0dc4a57d1f6a5070d] Merge tag 'mm-hotfixes-stable-2024-06-07-15-24' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm determine whether the revision contains the guilty commit revision c942a0cd3603e34dd2d7237e064d9318cb7f9654 crashed and is reachable testing commit dc772f8237f9b0c9ea3f34d0dc4a57d1f6a5070d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 23853f64460651d775d896996e7f67930297484220b17ec47e0e652bbf201c79 all runs: OK false negative chance: 0.000 # git bisect bad dc772f8237f9b0c9ea3f34d0dc4a57d1f6a5070d Bisecting: 6345 revisions left to test after this (roughly 13 steps) [db5d28c0bfe566908719bec8e25443aabecbb802] Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision c942a0cd3603e34dd2d7237e064d9318cb7f9654 crashed and is reachable testing commit db5d28c0bfe566908719bec8e25443aabecbb802 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5c3be94e96b680e9dc34c05fabd107f646e87ae154cf80fc6045334a60e3523a all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good db5d28c0bfe566908719bec8e25443aabecbb802 Bisecting: 3171 revisions left to test after this (roughly 12 steps) [6e51b4b5bbc07e52b226017936874715629932d1] Merge tag 'mips_6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux determine whether the revision contains the guilty commit revision c942a0cd3603e34dd2d7237e064d9318cb7f9654 crashed and is reachable testing commit 6e51b4b5bbc07e52b226017936874715629932d1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 65666d64f35c4ee5e3238d63e2fbb4884ebbd02c2a59677419c9afc01c447f5c all runs: OK false negative chance: 0.000 # git bisect bad 6e51b4b5bbc07e52b226017936874715629932d1 Bisecting: 1583 revisions left to test after this (roughly 11 steps) [ea5f6ad9ad9645733b72ab53a98e719b460d36a6] Merge tag 'platform-drivers-x86-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 determine whether the revision contains the guilty commit revision c942a0cd3603e34dd2d7237e064d9318cb7f9654 crashed and is reachable testing commit ea5f6ad9ad9645733b72ab53a98e719b460d36a6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b7d4979396b0ab8111866ca75d95cc9c961233d8fd5bc19232f99f1ef4c69c5f all runs: OK false negative chance: 0.000 # git bisect bad ea5f6ad9ad9645733b72ab53a98e719b460d36a6 Bisecting: 845 revisions left to test after this (roughly 10 steps) [2e9250022e9f2c9cde3b98fd26dcad1c2a9aedf3] Merge tag 'cxl-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl determine whether the revision contains the guilty commit revision db5d28c0bfe566908719bec8e25443aabecbb802 crashed and is reachable testing commit 2e9250022e9f2c9cde3b98fd26dcad1c2a9aedf3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dc708dacd7d22442422f829f70f5f63bdac6dced01dd732ff3ae578ceeec1725 all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good 2e9250022e9f2c9cde3b98fd26dcad1c2a9aedf3 Bisecting: 513 revisions left to test after this (roughly 9 steps) [8771b7f31b7fff91a998e6afdb60650d4bac59a5] media: bcm2835-unicam: Depend on COMMON_CLK determine whether the revision contains the guilty commit checking the merge base 39cd87c4eb2b893354f3b850f916353f2658ae6f no existing result, test the revision testing commit 39cd87c4eb2b893354f3b850f916353f2658ae6f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c1314e6847f0d640223a58a36a2eff491fa6104f58cb2e5db99963ee6e40b6a4 all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] testing commit 8771b7f31b7fff91a998e6afdb60650d4bac59a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c55f266592669887016f9931c940347e714bd8d78fbc694f0ad79be70ae467d6 all runs: OK false negative chance: 0.000 # git bisect bad 8771b7f31b7fff91a998e6afdb60650d4bac59a5 Bisecting: 165 revisions left to test after this (roughly 7 steps) [5d076c5e701564d4730a5b310d55104a822c225d] media: staging: media: atomisp: Remove unnecessary parentheses from conditional statement determine whether the revision contains the guilty commit revision 39cd87c4eb2b893354f3b850f916353f2658ae6f crashed and is reachable testing commit 5d076c5e701564d4730a5b310d55104a822c225d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3ab47d8736d180272016bab7e398fb38944a960c2ebaf95cea280f76b5d202fa all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good 5d076c5e701564d4730a5b310d55104a822c225d Bisecting: 82 revisions left to test after this (roughly 6 steps) [91e99e5a0bed1084ab5db2a69923b248039408ae] media: v4l: subdev: Return routes set using S_ROUTING determine whether the revision contains the guilty commit revision 39cd87c4eb2b893354f3b850f916353f2658ae6f crashed and is reachable testing commit 91e99e5a0bed1084ab5db2a69923b248039408ae gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9f35154c50c150924327ff355305798ec526e7a343c9f8e26bf465acb8defc36 all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good 91e99e5a0bed1084ab5db2a69923b248039408ae Bisecting: 41 revisions left to test after this (roughly 5 steps) [42bcaacae924bf18ae387c3f78c202df0b739292] media: cec: cec-api: add locking in cec_release() determine whether the revision contains the guilty commit revision 39cd87c4eb2b893354f3b850f916353f2658ae6f crashed and is reachable testing commit 42bcaacae924bf18ae387c3f78c202df0b739292 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 189c45dbfbbf61b17340b18e540bc91856bc28118444339808c8f5ddcf2af6f8 all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good 42bcaacae924bf18ae387c3f78c202df0b739292 Bisecting: 20 revisions left to test after this (roughly 4 steps) [45fbce19e789ce663e9685baacc3d0574721c9cd] media: gspca: cpia1: Use min macro determine whether the revision contains the guilty commit revision 42bcaacae924bf18ae387c3f78c202df0b739292 crashed and is reachable testing commit 45fbce19e789ce663e9685baacc3d0574721c9cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 349507677e1a93a484092de6eb9a7d7bae1288536eae2655ed93afc173eed43a all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good 45fbce19e789ce663e9685baacc3d0574721c9cd Bisecting: 10 revisions left to test after this (roughly 3 steps) [3e2435dd17d81756dbd737a2ff9cb8802aff9ba1] media: intel/ipu6: explicitly include vmalloc.h determine whether the revision contains the guilty commit revision 39cd87c4eb2b893354f3b850f916353f2658ae6f crashed and is reachable testing commit 3e2435dd17d81756dbd737a2ff9cb8802aff9ba1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cc72b9d98b8dccb28e4e2bf3a9d1cdbd9ae10e447a625a876494642025e143ff all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good 3e2435dd17d81756dbd737a2ff9cb8802aff9ba1 Bisecting: 5 revisions left to test after this (roughly 3 steps) [b6041c9e9f2d85514358ed478c53dfabd4015e3b] media: bcm2835-unicam: Fix a NULL vs IS_ERR() check determine whether the revision contains the guilty commit revision 39cd87c4eb2b893354f3b850f916353f2658ae6f crashed and is reachable testing commit b6041c9e9f2d85514358ed478c53dfabd4015e3b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6ff1d105a41424538aff63b903da8ad693676839a9707c9e91393df7d8ef99bc all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good b6041c9e9f2d85514358ed478c53dfabd4015e3b Bisecting: 2 revisions left to test after this (roughly 2 steps) [4ff61c4ce93677cd94a0ddefbd6f3bc3c40457c4] media: intel/ipu6: Don't print user-triggerable errors to kernel log determine whether the revision contains the guilty commit revision 91e99e5a0bed1084ab5db2a69923b248039408ae crashed and is reachable testing commit 4ff61c4ce93677cd94a0ddefbd6f3bc3c40457c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1f8b69bf397e9dc6aac7c8f766fa3f2bedee81de75a539c0c66b9478f46a22b8 all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good 4ff61c4ce93677cd94a0ddefbd6f3bc3c40457c4 Bisecting: 0 revisions left to test after this (roughly 1 step) [eba63df7eb1f95df6bfb67722a35372b6994928d] Revert "media: v4l2-ctrls: show all owned controls in log_status" determine whether the revision contains the guilty commit revision 39cd87c4eb2b893354f3b850f916353f2658ae6f crashed and is reachable testing commit eba63df7eb1f95df6bfb67722a35372b6994928d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9f747a0418565b3df9ceac9c2df330cd71a365afb349f84b929b58aef95428e8 all runs: OK false negative chance: 0.000 # git bisect bad eba63df7eb1f95df6bfb67722a35372b6994928d Bisecting: 0 revisions left to test after this (roughly 0 steps) [6983352784a7b87a9c39dbbfaa33733fa1ccb0a5] media: ov2740: Ensure proper reset sequence on probe() determine whether the revision contains the guilty commit revision 91e99e5a0bed1084ab5db2a69923b248039408ae crashed and is reachable testing commit 6983352784a7b87a9c39dbbfaa33733fa1ccb0a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a8c2817a6cbf0dab7dd6e22c8d26bfc7c4f7acb34eb79988229ee69c2b79029e all runs: crashed: possible deadlock in v4l2_ctrl_handler_log_status representative crash: possible deadlock in v4l2_ctrl_handler_log_status, types: [LOCKDEP] # git bisect good 6983352784a7b87a9c39dbbfaa33733fa1ccb0a5 eba63df7eb1f95df6bfb67722a35372b6994928d is the first bad commit commit eba63df7eb1f95df6bfb67722a35372b6994928d Author: Hans Verkuil Date: Fri May 10 09:11:46 2024 +0200 Revert "media: v4l2-ctrls: show all owned controls in log_status" This reverts commit 9801b5b28c6929139d6fceeee8d739cc67bb2739. This patch introduced a potential deadlock scenario: [Wed May 8 10:02:06 2024] Possible unsafe locking scenario: [Wed May 8 10:02:06 2024] CPU0 CPU1 [Wed May 8 10:02:06 2024] ---- ---- [Wed May 8 10:02:06 2024] lock(vivid_ctrls:1620:(hdl_vid_cap)->_lock); [Wed May 8 10:02:06 2024] lock(vivid_ctrls:1608:(hdl_user_vid)->_lock); [Wed May 8 10:02:06 2024] lock(vivid_ctrls:1620:(hdl_vid_cap)->_lock); [Wed May 8 10:02:06 2024] lock(vivid_ctrls:1608:(hdl_user_vid)->_lock); For now just revert. Fixes: 9801b5b28c69 ("media: v4l2-ctrls: show all owned controls in log_status") Cc: stable@vger.kernel.org Signed-off-by: Hans Verkuil Reviewed-by: Laurent Pinchart drivers/media/v4l2-core/v4l2-ctrls-core.c | 18 +++++------------- 1 file changed, 5 insertions(+), 13 deletions(-) accumulated error probability: 0.00 culprit signature: 9f747a0418565b3df9ceac9c2df330cd71a365afb349f84b929b58aef95428e8 parent signature: a8c2817a6cbf0dab7dd6e22c8d26bfc7c4f7acb34eb79988229ee69c2b79029e revisions tested: 24, total time: 4h42m52.494363871s (build: 2h29m33.580232497s, test: 1h57m46.885771041s) first good commit: eba63df7eb1f95df6bfb67722a35372b6994928d Revert "media: v4l2-ctrls: show all owned controls in log_status" recipients (to): ["hverkuil-cisco@xs4all.nl" "laurent.pinchart@ideasonboard.com" "linux-kernel@vger.kernel.org"] recipients (cc): ["hverkuil-cisco@xs4all.nl" "laurent.pinchart@ideasonboard.com" "linux-media@vger.kernel.org" "mchehab@kernel.org" "sakari.ailus@linux.intel.com" "umang.jain@ideasonboard.com"]