ci starts bisection 2026-11-08 06:03:16.165844563 +0000 UTC m=+231885.344949869 bisecting cause commit starting from f909e534f5e34feb2ea2701d54df63e21aa506fc building syzkaller on 432c00775d20929a96fd4987f9ef01a50e6fd277 ensuring issue is reproducible on original commit f909e534f5e34feb2ea2701d54df63e21aa506fc testing commit f909e534f5e34feb2ea2701d54df63e21aa506fc gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 86dbe23b7dcc6ce4ac06035288a04b33c5973fd3c2bf8c9e419d31947bd991ca all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed testing commit f909e534f5e34feb2ea2701d54df63e21aa506fc gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: e4e5bb0e4623ddef78a743c07b3c234735045d94d6f89e5fb998f028ecc25a01 run #0: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #1: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #2: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #3: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #4: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #5: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #6: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #7: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #8: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #9: crashed: no output from test machine representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed kconfig minimization: base=4206 full=8454 leaves diff=2104 split chunks (needed=false): <2104> split chunk #0 of len 2104 into 5 parts testing without sub-chunk 1/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit f909e534f5e34feb2ea2701d54df63e21aa506fc gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 902706db34254b3dffeb48559e45d6003c23df7eef30a6fe4b61b60c0df27dec run #0: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #1: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #2: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #3: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #4: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #5: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #6: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #7: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #8: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #9: crashed: no output from test machine representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed testing commit f909e534f5e34feb2ea2701d54df63e21aa506fc gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: a7df9d523dfd51081b95a7ea7941a76adac365dbc01a577722b16f281f033c8c all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed testing commit f909e534f5e34feb2ea2701d54df63e21aa506fc gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: df9793554285f5975518bc87c2df11cc7e5832a39e297664c680c0e35980ee9e run #0: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #1: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #2: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #3: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #4: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #5: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #6: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #7: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #8: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #9: crashed: no output from test machine representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed testing commit f909e534f5e34feb2ea2701d54df63e21aa506fc gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 7907ac9ddb830153a17c514fc647f907206e66fd6d37a95288d42a840919ba72 all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed testing commit f909e534f5e34feb2ea2701d54df63e21aa506fc gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 091a6c29208f7c36a89efe24de07ddb9425fdabcdfc778dd84eb78e429016ce1 all runs: OK false negative chance: 0.000 minimized to 420 configs; suspects: [ARCH_SUPPORTS_PER_VMA_LOCK ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT COMMON_CLK CONTIG_ALLOC DVB_CORE EXTCON GPIOLIB HAVE_ARCH_USERFAULTFD_WP HID_ZEROPLUS I2C_MUX IIO IOMMUFD KVM KVM_INTEL LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_VIPERBOARD NOP_USB_XCEIV PARPORT PCCARD PCMCIA PER_VMA_LOCK PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CHIPIDEA USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_GENERIC_PLAT USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_NET2280 USB_NET_AQC111 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERFAULTFD_RWP USERIO USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEO VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VIRT_XFER_TO_GUEST_WORK VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXLAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_MORSEMICRO WLAN_VENDOR_NXP WLAN_VENDOR_SILABS X86_FRED X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_IPTFS XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_BTREE_IN_MEM XFS_DRAIN_INTENTS XFS_FS XFS_LIVE_HOOKS XFS_MEMORY_BUFS XFS_ONLINE_REPAIR XFS_ONLINE_SCRUB XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS XOR_BLOCKS_ARCH YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON] disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed picked [v7.2 v7.1 v7.0 v6.18 v6.16 v6.14 v6.12 v6.10 v6.7 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 45 release tags testing release v7.2 testing commit 8d3ae59288f1e7d58d76558a6ee96d533bc5019f gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: a5908f5a8db6f9d028f4637ebe030778e231ac4fd614de12ed0c3f07a53087e4 run #0: ignore: 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 false negative chance: 0.000 # git bisect start f909e534f5e34feb2ea2701d54df63e21aa506fc 8d3ae59288f1e7d58d76558a6ee96d533bc5019f Bisecting: 9269 revisions left to test after this (roughly 13 steps) [4e69c1856bfd9ffb7e9d335a25842fa211628929] Merge tag 'drm-next-2026-08-20' of https://gitlab.freedesktop.org/drm/kernel testing commit 4e69c1856bfd9ffb7e9d335a25842fa211628929 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 3f19f26dfc2d15c196ee411c5879030e3cf1432c06ad51f486095a822255311c all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad 4e69c1856bfd9ffb7e9d335a25842fa211628929 Bisecting: 5430 revisions left to test after this (roughly 13 steps) [5a8cd539ac19f7a68e68e1d25ef9ca2ff55b8500] Merge tag 'bpf-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next testing commit 5a8cd539ac19f7a68e68e1d25ef9ca2ff55b8500 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 4166eb84e1905a22be7e3d2fc1d26a1ddef05a2b263a3c14c9111f759ee77a5f all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad 5a8cd539ac19f7a68e68e1d25ef9ca2ff55b8500 Bisecting: 2774 revisions left to test after this (roughly 12 steps) [abea5c349368a683e40fdc2e745099aaaacc89d7] Merge tag 'i2c-7.3-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux testing commit abea5c349368a683e40fdc2e745099aaaacc89d7 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 100dc3b72d66ff97131140342dda1f25498bb71cfaf198604b39ff2eef3461d0 all runs: OK false negative chance: 0.000 # git bisect good abea5c349368a683e40fdc2e745099aaaacc89d7 Bisecting: 1350 revisions left to test after this (roughly 11 steps) [e5c91aac491def6ab3f90c4cc246e3fcb0f8f058] Merge tag 'sound-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit e5c91aac491def6ab3f90c4cc246e3fcb0f8f058 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: cfd2b413df150ee218302beeebb0ae56f3db8e7a63b5a8de669d92ce9da1c334 all runs: OK false negative chance: 0.000 # git bisect good e5c91aac491def6ab3f90c4cc246e3fcb0f8f058 Bisecting: 677 revisions left to test after this (roughly 9 steps) [98f21c54f99519329c18e2625b0ea6db14524d09] Merge tag 'for-linus-fwctl' of git://git.kernel.org/pub/scm/linux/kernel/git/fwctl/fwctl testing commit 98f21c54f99519329c18e2625b0ea6db14524d09 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: ef12020e3c1129b0eef73b26b1d0d0a0a4837bde1aec3e0d04208a93a03b631d all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad 98f21c54f99519329c18e2625b0ea6db14524d09 Bisecting: 322 revisions left to test after this (roughly 8 steps) [c6cf4441a3a05bb7273ed022f3e56c4fc591da08] Merge tag 'devicetree-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux testing commit c6cf4441a3a05bb7273ed022f3e56c4fc591da08 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: e944c5d3c918119678ddb917fe506cc4d73a96775cc691afd08372a68c7a8f0a all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad c6cf4441a3a05bb7273ed022f3e56c4fc591da08 Bisecting: 174 revisions left to test after this (roughly 8 steps) [67f869721d9a2dfeccd731f62e47017c75fcac09] media: s2255: Remove unnecessary spaces after casts testing commit 67f869721d9a2dfeccd731f62e47017c75fcac09 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 913f6b6db9187ba36ec3dada14e64636eb72e38b7e787372b7a7b034dc3343e4 all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad 67f869721d9a2dfeccd731f62e47017c75fcac09 Bisecting: 87 revisions left to test after this (roughly 7 steps) [9be07216af4cfc4813e1a46ce26407d31ea845de] media: ipu6: Do not free aux device pdata after init testing commit 9be07216af4cfc4813e1a46ce26407d31ea845de gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: fdc542589be7706c8b65253941ab2c994315f5f979279020b27455e50b751733 all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad 9be07216af4cfc4813e1a46ce26407d31ea845de Bisecting: 43 revisions left to test after this (roughly 6 steps) [1924d0788caa6c66fd320dd4704fae99487fd2c7] media: cec: Serialize exclusive follower delivery testing commit 1924d0788caa6c66fd320dd4704fae99487fd2c7 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 6672934c6549f9dfcb2d80fcc1a4c3578c04ee71e3b42d6b7ddf14f8a26c5d55 all runs: OK false negative chance: 0.000 # git bisect good 1924d0788caa6c66fd320dd4704fae99487fd2c7 Bisecting: 21 revisions left to test after this (roughly 5 steps) [4e72f13d58c4245c177a9d5f54579345554f354d] media: v4l2-async: Unregister sub-device if asc_list is empty testing commit 4e72f13d58c4245c177a9d5f54579345554f354d gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 53afb80f0e05b841403aed571c1f3694ddeec6443a0e39f617a2cfd12d6bad9b all runs: OK false negative chance: 0.000 # git bisect good 4e72f13d58c4245c177a9d5f54579345554f354d Bisecting: 10 revisions left to test after this (roughly 4 steps) [b845e0f35383606b4713c231a486a4113b455fa2] media: i2c: imx412: switch to {enable,disable}_streams testing commit b845e0f35383606b4713c231a486a4113b455fa2 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 23bd9b72c81ef05803d7556227e901eac9300c94c5871464528317fd234abd92 all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad b845e0f35383606b4713c231a486a4113b455fa2 Bisecting: 5 revisions left to test after this (roughly 3 steps) [67f87b104f4ef3108607ac9d8fa2075b13ed314d] media: em28xx: requeue buffers if start_streaming fails testing commit 67f87b104f4ef3108607ac9d8fa2075b13ed314d gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 0fef5bf2c9b7b2114cdac404da3f4bd5f72f23c2729f9ef1ebe3962ea3cdcfc9 all runs: crashed: INFO: trying to register non-static key in __vb2_queue_cancel representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad 67f87b104f4ef3108607ac9d8fa2075b13ed314d Bisecting: 2 revisions left to test after this (roughly 1 step) [de626073dfcbb06441f1a9755715941c0c375fe3] media: em28xx: drop 'users' field testing commit de626073dfcbb06441f1a9755715941c0c375fe3 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: f01c068b60668e234f162c97e73ac936e13f33733a08b56d01c437eb0a1f8e07 run #0: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #1: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #2: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #3: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #4: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #5: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #6: OK run #7: OK run #8: OK run #9: OK representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad de626073dfcbb06441f1a9755715941c0c375fe3 Bisecting: 0 revisions left to test after this (roughly 0 steps) [288254383674be25b26cf137bc12bfe38fefbad6] media: em28xx: use v4l2_device release callback testing commit 288254383674be25b26cf137bc12bfe38fefbad6 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 23d70b5011a46425bfc711de6fa3b02e5400c32b32b10efd5087b4eb43d36e51 run #0: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #1: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #2: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #3: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #4: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #5: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #6: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #7: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #8: crashed: INFO: trying to register non-static key in __vb2_queue_cancel run #9: OK representative crash: INFO: trying to register non-static key in __vb2_queue_cancel, types: [UNKNOWN] # git bisect bad 288254383674be25b26cf137bc12bfe38fefbad6 288254383674be25b26cf137bc12bfe38fefbad6 is the first bad commit commit 288254383674be25b26cf137bc12bfe38fefbad6 Author: Hans Verkuil Date: Tue May 19 12:07:59 2026 +0200 media: em28xx: use v4l2_device release callback The em28xx driver creates a lot of video devices, but life-time management is really bad. Instead use the struct v4l2_device release() callback to have a single place where memory can be freed once the last user has gone. Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Hans Verkuil Tested-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab drivers/media/usb/em28xx/em28xx-video.c | 66 ++++++++++++++++++++------------- drivers/media/usb/em28xx/em28xx.h | 1 - 2 files changed, 41 insertions(+), 26 deletions(-) accumulated error probability: 0.00 culprit signature: 23d70b5011a46425bfc711de6fa3b02e5400c32b32b10efd5087b4eb43d36e51 parent signature: 53afb80f0e05b841403aed571c1f3694ddeec6443a0e39f617a2cfd12d6bad9b revisions tested: 22, total time: 12h12m15.613426598s (build: 6h9m39.641058535s, test: 4h17m19.772118268s) first bad commit: 288254383674be25b26cf137bc12bfe38fefbad6 media: em28xx: use v4l2_device release callback recipients (to): ["hverkuil+cisco@kernel.org" "linux-media@vger.kernel.org" "mchehab+huawei@kernel.org" "mchehab@kernel.org"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: INFO: trying to register non-static key in __vb2_queue_cancel INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 0 UID: 0 PID: 3899 Comm: v4l_id Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 Call Trace: dump_stack_lvl+0x52/0x80 lib/dump_stack.c:120 assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984 register_lock_class+0xa9/0x250 kernel/locking/lockdep.c:1299 __lock_acquire+0x73/0x4e0 kernel/locking/lockdep.c:5112 lock_acquire+0xaf/0x1a0 kernel/locking/lockdep.c:5868 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline] _raw_spin_lock_irqsave+0x34/0x50 kernel/locking/spinlock.c:166 __wake_up_common_lock kernel/sched/wait.c:124 [inline] __wake_up+0x22/0xc0 kernel/sched/wait.c:146 __vb2_queue_cancel+0x127/0x2c0 drivers/media/common/videobuf2/videobuf2-core.c:2244 vb2_core_queue_release+0x17/0x80 drivers/media/common/videobuf2/videobuf2-core.c:2677 vb2_queue_release drivers/media/common/videobuf2/videobuf2-v4l2.c:956 [inline] _vb2_fop_release drivers/media/common/videobuf2/videobuf2-v4l2.c:1159 [inline] vb2_fop_release+0x6d/0xa0 drivers/media/common/videobuf2/videobuf2-v4l2.c:1173 em28xx_v4l2_close+0x4b/0x170 drivers/media/usb/em28xx/em28xx-video.c:2473 v4l2_release+0x9a/0xf0 drivers/media/v4l2-core/v4l2-dev.c:471 __fput+0x105/0x280 fs/file_table.c:512 __do_sys_close fs/open.c:1511 [inline] __se_sys_close+0x75/0xe0 fs/open.c:1496 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x400 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3bef4eb407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffe4294f670 EFLAGS: 00000202 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 00007f3bef3fd880 RCX: 00007f3bef4eb407 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f3bef3fd6e8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000013 R13: 00007ffe4294f8a0 R14: 00007f3befc81000 R15: 0000564928e8b4d8 BUG: unable to handle page fault for address: ffffffffffffffe8 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 365f067 P4D 365f067 PUD 3661067 PMD 0 Oops: Oops: 0000 [#1] SMP PTI CPU: 0 UID: 0 PID: 3899 Comm: v4l_id Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 RIP: 0010:__wake_up_common kernel/sched/wait.c:105 [inline] RIP: 0010:__wake_up_common_lock kernel/sched/wait.c:125 [inline] RIP: 0010:__wake_up+0x68/0xc0 kernel/sched/wait.c:146 Code: 4c 8d 7b 40 48 89 5c 24 10 48 8b 5b 40 44 89 74 24 04 45 89 f5 4c 39 fb 74 3c 44 8b 6c 24 04 eb 05 4c 39 fb 74 30 48 8d 7b e8 <44> 8b 73 e8 4c 8b 5b f8 48 8b 1b 89 ee 31 d2 4c 89 e1 2e 2e 2e 41 RSP: 0018:ffffc900079bfd80 EFLAGS: 00010017 RAX: 0000000000000282 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000001 RSI: ffffffff833c3fbc RDI: ffffffffffffffe8 RBP: 0000000000000003 R08: 0000000000001fff R09: ffffffff836ad600 R10: 0000000000005ffd R11: 4000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888114d4b7b8 FS: 00007f3bef3fd880(0000) GS:ffff8882b36a7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffe8 CR3: 0000000124dc8000 CR4: 00000000003526f0 Call Trace: __vb2_queue_cancel+0x127/0x2c0 drivers/media/common/videobuf2/videobuf2-core.c:2244 vb2_core_queue_release+0x17/0x80 drivers/media/common/videobuf2/videobuf2-core.c:2677 vb2_queue_release drivers/media/common/videobuf2/videobuf2-v4l2.c:956 [inline] _vb2_fop_release drivers/media/common/videobuf2/videobuf2-v4l2.c:1159 [inline] vb2_fop_release+0x6d/0xa0 drivers/media/common/videobuf2/videobuf2-v4l2.c:1173 em28xx_v4l2_close+0x4b/0x170 drivers/media/usb/em28xx/em28xx-video.c:2473 v4l2_release+0x9a/0xf0 drivers/media/v4l2-core/v4l2-dev.c:471 __fput+0x105/0x280 fs/file_table.c:512 __do_sys_close fs/open.c:1511 [inline] __se_sys_close+0x75/0xe0 fs/open.c:1496 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x400 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3bef4eb407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffe4294f670 EFLAGS: 00000202 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 00007f3bef3fd880 RCX: 00007f3bef4eb407 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f3bef3fd6e8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000013 R13: 00007ffe4294f8a0 R14: 00007f3befc81000 R15: 0000564928e8b4d8 Modules linked in: CR2: ffffffffffffffe8 ---[ end trace 0000000000000000 ]--- RIP: 0010:__wake_up_common kernel/sched/wait.c:105 [inline] RIP: 0010:__wake_up_common_lock kernel/sched/wait.c:125 [inline] RIP: 0010:__wake_up+0x68/0xc0 kernel/sched/wait.c:146 Code: 4c 8d 7b 40 48 89 5c 24 10 48 8b 5b 40 44 89 74 24 04 45 89 f5 4c 39 fb 74 3c 44 8b 6c 24 04 eb 05 4c 39 fb 74 30 48 8d 7b e8 <44> 8b 73 e8 4c 8b 5b f8 48 8b 1b 89 ee 31 d2 4c 89 e1 2e 2e 2e 41 RSP: 0018:ffffc900079bfd80 EFLAGS: 00010017 RAX: 0000000000000282 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000001 RSI: ffffffff833c3fbc RDI: ffffffffffffffe8 RBP: 0000000000000003 R08: 0000000000001fff R09: ffffffff836ad600 R10: 0000000000005ffd R11: 4000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888114d4b7b8 FS: 00007f3bef3fd880(0000) GS:ffff8882b36a7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffe8 CR3: 0000000124dc8000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 4c 8d 7b 40 lea 0x40(%rbx),%r15 4: 48 89 5c 24 10 mov %rbx,0x10(%rsp) 9: 48 8b 5b 40 mov 0x40(%rbx),%rbx d: 44 89 74 24 04 mov %r14d,0x4(%rsp) 12: 45 89 f5 mov %r14d,%r13d 15: 4c 39 fb cmp %r15,%rbx 18: 74 3c je 0x56 1a: 44 8b 6c 24 04 mov 0x4(%rsp),%r13d 1f: eb 05 jmp 0x26 21: 4c 39 fb cmp %r15,%rbx 24: 74 30 je 0x56 26: 48 8d 7b e8 lea -0x18(%rbx),%rdi * 2a: 44 8b 73 e8 mov -0x18(%rbx),%r14d <-- trapping instruction 2e: 4c 8b 5b f8 mov -0x8(%rbx),%r11 32: 48 8b 1b mov (%rbx),%rbx 35: 89 ee mov %ebp,%esi 37: 31 d2 xor %edx,%edx 39: 4c 89 e1 mov %r12,%rcx 3c: 2e cs 3d: 2e cs 3e: 2e cs 3f: 41 rex.B