ci2 starts bisection 2026-10-22 16:16:06.621748056 +0000 UTC m=+20346.357006565 bisecting fixing commit since 61c03dfde8540c7274d9a30dc576bc32951187cd building syzkaller on d78ea535f456172a095a6d211ee0a2de1d049968 ensuring issue is reproducible on original commit 61c03dfde8540c7274d9a30dc576bc32951187cd testing commit 61c03dfde8540c7274d9a30dc576bc32951187cd gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 98cf5a888a1656fdba197363b2cdb8b53bde93746f470f47ac8d798a1756b092 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_writepages run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: crashed: possible deadlock in ext4_xattr_set_handle run #18: crashed: possible deadlock in ext4_xattr_set_handle run #19: crashed: possible deadlock in ext4_xattr_set_handle representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [ubsan bug_or_warning kasan atomic_sleep hang memleak], they are not needed testing commit 61c03dfde8540c7274d9a30dc576bc32951187cd gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: c78f11a442a8a53fe51881f015987579f60d9794c91e355e528a7a7cd756e0d4 all runs: crashed: possible deadlock in ext4_xattr_set_handle representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [memleak ubsan bug_or_warning kasan atomic_sleep hang], they are not needed kconfig minimization: base=4169 full=8397 leaves diff=2094 split chunks (needed=false): <2094> split chunk #0 of len 2094 into 5 parts testing without sub-chunk 1/5 disabling configs for [bug_or_warning kasan atomic_sleep hang memleak ubsan], they are not needed testing commit 61c03dfde8540c7274d9a30dc576bc32951187cd gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 04d9dbe6f573f5b55f620b4621370364fb581cc95664facaaa39037bdf03df5d run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_writepages run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ubsan bug_or_warning kasan atomic_sleep hang memleak], they are not needed testing commit 61c03dfde8540c7274d9a30dc576bc32951187cd gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 2af76625e5c15578190d5f9247cd7530021122eb496dca66d16c61995119be59 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in do_writepages run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [bug_or_warning kasan atomic_sleep hang memleak ubsan], they are not needed testing commit 61c03dfde8540c7274d9a30dc576bc32951187cd gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: d9bd874f021008a685a1059e8e2a565cb305cc5ffa93b99d7a3be47ada94490c run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [kasan atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit 61c03dfde8540c7274d9a30dc576bc32951187cd gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: c1e0a47a0887fbd4db8c350ce2c82df0d4af9fdcfc0bb451ab99be363096b853 run #0: crashed: possible deadlock in wait_transaction_locked run #1: crashed: possible deadlock in wait_transaction_locked 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: possible deadlock in wait_transaction_locked, types: [LOCKDEP] testing without sub-chunk 5/5 disabling configs for [hang memleak ubsan bug_or_warning kasan atomic_sleep], they are not needed testing commit 61c03dfde8540c7274d9a30dc576bc32951187cd gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: c5f4b2609ac25d910af40cc9935ca60142b6902b426c9eb89da1819fa203c49b 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: crashed: possible deadlock in ext4_xattr_set_handle run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 19 minimized to 837 configs; suspects: [AF_RXRPC ATM BCMA BLK_DEV_ZONED BPF_SYSCALL BT BT_BREDR BT_HIDP BXT_WC_PMIC_OPREGION CARDBUS CFG80211 CFG80211_WEXT COMMON_CLK CONTIG_ALLOC DIBS DLM DMABUF_HEAPS DRM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB GUEST_PERF_EVENTS HAVE_CLK HID_NVIDIA_SHIELD HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_STEAM HID_THRUSTMASTER HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IOMMUFD IP_SCTP KVM KVM_INTEL L2TP LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_MT6370 MFD_RETU MFD_VIPERBOARD MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NULL_TTY NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVIDIA_SHIELD_FF NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN OPTEE_STATIC_PROTMEM_POOL ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PAGE_IDLE_FLAG PAGE_REPORTING PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERF_GUEST_MEDIATED_PMU PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_GOOGLE_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 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TCP_CONG_YEAH TEE TEE_DMABUF_HEAPS TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TMPFS_QUOTA TOOLS_SUPPORT_RELR TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TTPCI_EEPROM TTY_PRINTK TUN TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_ANX7411 TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_FSA4480 TYPEC_MUX_GPIO_SBU TYPEC_MUX_INTEL_PMC TYPEC_MUX_NB7VPQ904M TYPEC_MUX_PTN36502 TYPEC_MUX_WCD939X_USBSS TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_RT1719 TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPCI_MT6370 TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE TYPEC_WUSB3801 UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UCSI_CCG UCSI_STM32G0 UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_CONFIGFS USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AMD5536UDC USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_ATM USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CDNS2_UDC USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_PCI USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS 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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_LJCA 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_ROLE_SWITCH 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_REALTEK 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 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 VXFS_FS VXLAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_PURELIFI 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_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 ZONE_DEVICE 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 [hang memleak ubsan bug_or_warning kasan atomic_sleep], they are not needed testing current HEAD 7be4bc52fd9e0e55dc9a2e0232b89427d2c4b614 testing commit 7be4bc52fd9e0e55dc9a2e0232b89427d2c4b614 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: a79671d3e9088989e0b6ec234529c966e5d5bc63dd0500f99ddd02f958be6376 all runs: OK false negative chance: 0.000 # git bisect start 7be4bc52fd9e0e55dc9a2e0232b89427d2c4b614 61c03dfde8540c7274d9a30dc576bc32951187cd Bisecting: 11685 revisions left to test after this (roughly 14 steps) [4e69c1856bfd9ffb7e9d335a25842fa211628929] Merge tag 'drm-next-2026-08-20' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision 61c03dfde8540c7274d9a30dc576bc32951187cd crashed and is reachable testing commit 4e69c1856bfd9ffb7e9d335a25842fa211628929 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: b432d9eedb660e453189bbdc173b76ae0221afc606f8c9980b8124ad7ddc9176 all runs: OK false negative chance: 0.000 # git bisect bad 4e69c1856bfd9ffb7e9d335a25842fa211628929 Bisecting: 6781 revisions left to test after this (roughly 13 steps) [e5c91aac491def6ab3f90c4cc246e3fcb0f8f058] Merge tag 'sound-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound determine whether the revision contains the guilty commit revision 61c03dfde8540c7274d9a30dc576bc32951187cd crashed and is reachable testing commit e5c91aac491def6ab3f90c4cc246e3fcb0f8f058 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: c654212e64a4324a0040b13ad505ada79870b4ee7c628ae93fe7fde7746ea175 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good e5c91aac491def6ab3f90c4cc246e3fcb0f8f058 Bisecting: 3463 revisions left to test after this (roughly 12 steps) [ada9ccfb81eca6943c3cd42d23b9ddd446e75342] Merge tag 'for-linus-7.3-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux determine whether the revision contains the guilty commit revision 61c03dfde8540c7274d9a30dc576bc32951187cd crashed and is reachable testing commit ada9ccfb81eca6943c3cd42d23b9ddd446e75342 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 7cdd6497161d24f8206951b7ddbfe5c24ce49b394ecaeb6a8f36bced11adfd24 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good ada9ccfb81eca6943c3cd42d23b9ddd446e75342 Bisecting: 1722 revisions left to test after this (roughly 11 steps) [82cb10c8bc506a4d2093e0e59672fd307f549d38] Merge tag 'drm-xe-next-2026-07-30' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next determine whether the revision contains the guilty commit checking the merge base 8cdeaa50eae8dad34885515f62559ee83e7e8dda no existing result, test the revision testing commit 8cdeaa50eae8dad34885515f62559ee83e7e8dda gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 321bcc6c91782fcdb7ff2320805b3f4a4a1b5d4b64f1c2853aed37dd0034df32 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in wait_transaction_locked run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: WARNING: possible circular locking dependency detected run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] testing commit 82cb10c8bc506a4d2093e0e59672fd307f549d38 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 04ad2dda4f1dd62583f99681427142ae71656a65d39ece6239eea9c13fb64520 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in wait_transaction_locked run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in do_writepages run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: crashed: possible deadlock in ext4_xattr_set_handle run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good 82cb10c8bc506a4d2093e0e59672fd307f549d38 Bisecting: 879 revisions left to test after this (roughly 10 steps) [7f063b2f17eaba2a35e251aa53627f2a70d536e2] Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost determine whether the revision contains the guilty commit revision e5c91aac491def6ab3f90c4cc246e3fcb0f8f058 crashed and is reachable testing commit 7f063b2f17eaba2a35e251aa53627f2a70d536e2 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 failed building 7f063b2f17eaba2a35e251aa53627f2a70d536e2: mv: cannot stat 'arch/x86/include/generated/asm/.tmp_cpufeaturemasks.h': No such file or directory # git bisect skip 7f063b2f17eaba2a35e251aa53627f2a70d536e2 Bisecting: 879 revisions left to test after this (roughly 10 steps) [8725ae13f0ca89eff61cb6c256627b183d57ec7f] mm/percpu: avoid IO/FS reclaim in backing allocations determine whether the revision contains the guilty commit revision 61c03dfde8540c7274d9a30dc576bc32951187cd crashed and is reachable testing commit 8725ae13f0ca89eff61cb6c256627b183d57ec7f gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: a509436c4884117cbb579d3c68c5f3662467a2bb5389f3035f64cab7c3ca1911 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good 8725ae13f0ca89eff61cb6c256627b183d57ec7f Bisecting: 864 revisions left to test after this (roughly 10 steps) [c17ba40c37e890987dce846cf6e1ec6a2bf79ea3] mm/memory_hotplug: add offline_and_remove_memory_ranges() determine whether the revision contains the guilty commit revision 8cdeaa50eae8dad34885515f62559ee83e7e8dda crashed and is reachable testing commit c17ba40c37e890987dce846cf6e1ec6a2bf79ea3 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: de8e08049a094bbf3852ec65b683806364628c24f1c56496d43ea6efd870ff42 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in wait_transaction_locked run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good c17ba40c37e890987dce846cf6e1ec6a2bf79ea3 Bisecting: 650 revisions left to test after this (roughly 9 steps) [073e62fd33fe9cec754cb89e60c0ebbab781a50a] Merge tag 'riscv-for-linus-7.3-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux determine whether the revision contains the guilty commit revision e5c91aac491def6ab3f90c4cc246e3fcb0f8f058 crashed and is reachable testing commit 073e62fd33fe9cec754cb89e60c0ebbab781a50a gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 failed building 073e62fd33fe9cec754cb89e60c0ebbab781a50a: mv: cannot stat 'arch/x86/include/generated/asm/.tmp_cpufeaturemasks.h': No such file or directory # git bisect skip 073e62fd33fe9cec754cb89e60c0ebbab781a50a Bisecting: 650 revisions left to test after this (roughly 9 steps) [f2183452402508ad68ea01eed18ae8eecfcd8f0a] tracing/probes: Support field specifier option for typecast determine whether the revision contains the guilty commit checking the merge base 4a50a141f05a8d1737661b19ee22ff8455b94409 no existing result, test the revision testing commit 4a50a141f05a8d1737661b19ee22ff8455b94409 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 28216560c4eca50873bc6c9f7e9ebbdb5cb0f16da2e6f3582897ee79fa871c38 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] testing commit f2183452402508ad68ea01eed18ae8eecfcd8f0a gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: f054df9b0ef5070e2524ca1a75413484b44b0f6d4816b56c05698d78f5c616f6 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good f2183452402508ad68ea01eed18ae8eecfcd8f0a Bisecting: 638 revisions left to test after this (roughly 9 steps) [ffd3e73d6e0c88f1cc7f5137978427a404fa5026] md: add helper to split bios at reshape offset determine whether the revision contains the guilty commit revision 8cdeaa50eae8dad34885515f62559ee83e7e8dda crashed and is reachable testing commit ffd3e73d6e0c88f1cc7f5137978427a404fa5026 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 391180f759280bc285e5df0d0e873f0aaf33a7ee6ed609f7733499ca9812ac2a run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in do_writepages run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in do_writepages run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: crashed: possible deadlock in ext4_xattr_set_handle run #18: crashed: possible deadlock in ext4_xattr_set_handle run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good ffd3e73d6e0c88f1cc7f5137978427a404fa5026 Bisecting: 638 revisions left to test after this (roughly 9 steps) [b036727d334b1b7cd4c1f1fba3b59ba93a6bbe96] nfsd: clear CALLBACK_RUNNING on failed delegation recall queue determine whether the revision contains the guilty commit revision 4a50a141f05a8d1737661b19ee22ff8455b94409 crashed and is reachable testing commit b036727d334b1b7cd4c1f1fba3b59ba93a6bbe96 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: f30d8d4f2e08671ad0fcacc5c076ac74ea43c72fd348814d057734c803a3696e run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good b036727d334b1b7cd4c1f1fba3b59ba93a6bbe96 Bisecting: 638 revisions left to test after this (roughly 9 steps) [f42d0fda0c67695db6bc704b04b7c10240805377] SUNRPC: always drain cache_cleaner before destroying a cache_detail determine whether the revision contains the guilty commit revision 4a50a141f05a8d1737661b19ee22ff8455b94409 crashed and is reachable testing commit f42d0fda0c67695db6bc704b04b7c10240805377 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: ea0bb79fb995d82d031015a6b008cd4d349aba74598b04163ec2fe73f74a946e run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in do_writepages run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in do_writepages run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in do_writepages run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good f42d0fda0c67695db6bc704b04b7c10240805377 Bisecting: 638 revisions left to test after this (roughly 9 steps) [cac0cb07f29ccfb373fd4a36c81e908ef3ce608c] udf: reject VAT indexes equal to the entry count determine whether the revision contains the guilty commit revision 4a50a141f05a8d1737661b19ee22ff8455b94409 crashed and is reachable testing commit cac0cb07f29ccfb373fd4a36c81e908ef3ce608c gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: d01c6c1e93a747cb4925fb81426a928410aaad66fb2b2ecfabd8bda21ca87c6f run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good cac0cb07f29ccfb373fd4a36c81e908ef3ce608c Bisecting: 638 revisions left to test after this (roughly 9 steps) [90163c8f3b73aaf2241583503ba40e58247e54ec] drm/amdgpu/gfx7: Fixup emitting SWITCH_BUFFER packets determine whether the revision contains the guilty commit revision 8cdeaa50eae8dad34885515f62559ee83e7e8dda crashed and is reachable testing commit 90163c8f3b73aaf2241583503ba40e58247e54ec gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 8a89f757f54dd997ad3529b57add113305c1d41232a81b99b3806aa7d060a587 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in do_writepages run #7: crashed: possible deadlock in do_writepages run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good 90163c8f3b73aaf2241583503ba40e58247e54ec Bisecting: 630 revisions left to test after this (roughly 9 steps) [482fc257de95ab181688e9d1dfcc6b6a58857b1e] block/kyber-iosched: flush per-cpu latency buckets over possible CPUs determine whether the revision contains the guilty commit revision 4a50a141f05a8d1737661b19ee22ff8455b94409 crashed and is reachable testing commit 482fc257de95ab181688e9d1dfcc6b6a58857b1e gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: e0818d4f722ccd898c66941092ec3edac604aca0810e8b6737d75c99c894d68e run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in do_writepages run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in do_writepages run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good 482fc257de95ab181688e9d1dfcc6b6a58857b1e Bisecting: 630 revisions left to test after this (roughly 9 steps) [77ae27fd98f3b548797c9f22c10ab5cf1c4ada53] Merge tag 'printk-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux determine whether the revision contains the guilty commit revision f42d0fda0c67695db6bc704b04b7c10240805377 crashed and is reachable testing commit 77ae27fd98f3b548797c9f22c10ab5cf1c4ada53 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 2a4e80602471e3e56f85b4eaad5cc6f45207f3603a4e524e51aef9193c098b9a all runs: OK false negative chance: 0.000 # git bisect bad 77ae27fd98f3b548797c9f22c10ab5cf1c4ada53 Bisecting: 335 revisions left to test after this (roughly 8 steps) [f5437ff7299e47e76e52d37a2937a4b0f04e399f] Merge tag 'for-7.3/io_uring-20260819' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux determine whether the revision contains the guilty commit revision b036727d334b1b7cd4c1f1fba3b59ba93a6bbe96 crashed and is reachable testing commit f5437ff7299e47e76e52d37a2937a4b0f04e399f gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 4f9633925969ac5f429b32b9f9b500fc0973588340c5a7e1edc77552926b7ac8 all runs: OK false negative chance: 0.000 # git bisect bad f5437ff7299e47e76e52d37a2937a4b0f04e399f Bisecting: 173 revisions left to test after this (roughly 7 steps) [81e51378b78a11b168ffec08d80ff4b47e5b0227] Merge tag 'fsnotify_for_v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs determine whether the revision contains the guilty commit revision f42d0fda0c67695db6bc704b04b7c10240805377 crashed and is reachable testing commit 81e51378b78a11b168ffec08d80ff4b47e5b0227 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: ad3856eece574e4ebc25a290921fec9bf2a9c82018784323da2db3fd1104b731 run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in do_writepages run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: crashed: possible deadlock in ext4_xattr_set_handle run #17: crashed: possible deadlock in ext4_xattr_set_handle run #18: crashed: possible deadlock in ext4_xattr_set_handle run #19: crashed: possible deadlock in wait_transaction_locked representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good 81e51378b78a11b168ffec08d80ff4b47e5b0227 Bisecting: 87 revisions left to test after this (roughly 7 steps) [50c44fea13ec339d0d457079b254e8c8420d6511] Merge tag 'for-7.3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux determine whether the revision contains the guilty commit revision cac0cb07f29ccfb373fd4a36c81e908ef3ce608c crashed and is reachable testing commit 50c44fea13ec339d0d457079b254e8c8420d6511 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 0821e97c79ed982cf6649f3cca5900d0388a8bc1f13e041ecfd4018a04bb595e run #0: crashed: possible deadlock in do_writepages run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in do_writepages run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in do_writepages, types: [LOCKDEP] # git bisect good 50c44fea13ec339d0d457079b254e8c8420d6511 Bisecting: 43 revisions left to test after this (roughly 6 steps) [61e2a90a910cb9ed27ca647895f073af0b640351] ext4: enable scoped NOFS when starting a handle in nojournal mode determine whether the revision contains the guilty commit revision 4a50a141f05a8d1737661b19ee22ff8455b94409 crashed and is reachable testing commit 61e2a90a910cb9ed27ca647895f073af0b640351 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 050c6121fbcd0c94055bdf63fb6f040421e4c88ad4a7b8b46b7f4134916a2eb6 all runs: OK false negative chance: 0.000 # git bisect bad 61e2a90a910cb9ed27ca647895f073af0b640351 Bisecting: 21 revisions left to test after this (roughly 5 steps) [7edbb323bab2b2a609016014caafdb651c898249] ext4: use fsdata to track inline data write state and fix race determine whether the revision contains the guilty commit revision 4a50a141f05a8d1737661b19ee22ff8455b94409 crashed and is reachable testing commit 7edbb323bab2b2a609016014caafdb651c898249 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 5adc29f58b312c443a8b65e373b4d2bec88d38a8eda2bebb702ee4deadb3a0f2 all runs: OK false negative chance: 0.000 # git bisect bad 7edbb323bab2b2a609016014caafdb651c898249 Bisecting: 10 revisions left to test after this (roughly 4 steps) [7461c60b9c6a839b13ad4c3490681a0cf5aa0637] ext4: skip extra isize expansion during mount to prevent deadlock determine whether the revision contains the guilty commit revision 4a50a141f05a8d1737661b19ee22ff8455b94409 crashed and is reachable testing commit 7461c60b9c6a839b13ad4c3490681a0cf5aa0637 gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 7fd1500ce5998e656c9bee1659b6746a74f8bb7777a771a882a48178c2922f29 all runs: OK false negative chance: 0.000 # git bisect bad 7461c60b9c6a839b13ad4c3490681a0cf5aa0637 Bisecting: 4 revisions left to test after this (roughly 3 steps) [a897682793eba5de51ee6f3152760374afa629cf] ext4: fix circular lock dependency in ext4_ext_migrate determine whether the revision contains the guilty commit revision 8cdeaa50eae8dad34885515f62559ee83e7e8dda crashed and is reachable testing commit a897682793eba5de51ee6f3152760374afa629cf gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 069a882c2d5b1750eb8413b596b35054f4bb0761a5f3672578144d37a597d295 run #0: crashed: possible deadlock in do_writepages run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in do_writepages run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in ext4_xattr_set_handle run #15: crashed: possible deadlock in ext4_xattr_set_handle run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in do_writepages, types: [LOCKDEP] # git bisect good a897682793eba5de51ee6f3152760374afa629cf Bisecting: 1 revision left to test after this (roughly 1 step) [7f0485dd30175d7934d101ce73efa999ad2d107d] ext4: remove ext4_end_buffer_io_sync() determine whether the revision contains the guilty commit revision 4a50a141f05a8d1737661b19ee22ff8455b94409 crashed and is reachable testing commit 7f0485dd30175d7934d101ce73efa999ad2d107d gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 5abedc6557236103f877730837bb7761431ccc6c1db7c0332187bc5f9061ba36 all runs: crashed: possible deadlock in ext4_xattr_set_handle representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good 7f0485dd30175d7934d101ce73efa999ad2d107d Bisecting: 0 revisions left to test after this (roughly 0 steps) [9333cc809f0a89e001b814155a6cb8903a6274df] ext4: fix out-of-bounds read in ext4_read_inline_dir() determine whether the revision contains the guilty commit revision 8cdeaa50eae8dad34885515f62559ee83e7e8dda crashed and is reachable testing commit 9333cc809f0a89e001b814155a6cb8903a6274df gcc compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 kernel signature: 4a76add094f4fbf86093014eedc95e3274bbd6b92325f3d0ab1ae9beb8114f6b run #0: crashed: possible deadlock in ext4_xattr_set_handle run #1: crashed: possible deadlock in ext4_xattr_set_handle run #2: crashed: possible deadlock in ext4_xattr_set_handle run #3: crashed: possible deadlock in ext4_xattr_set_handle run #4: crashed: possible deadlock in ext4_xattr_set_handle run #5: crashed: possible deadlock in ext4_xattr_set_handle run #6: crashed: possible deadlock in ext4_xattr_set_handle run #7: crashed: possible deadlock in ext4_xattr_set_handle run #8: crashed: possible deadlock in ext4_xattr_set_handle run #9: crashed: possible deadlock in ext4_xattr_set_handle run #10: crashed: possible deadlock in ext4_xattr_set_handle run #11: crashed: possible deadlock in ext4_xattr_set_handle run #12: crashed: possible deadlock in ext4_xattr_set_handle run #13: crashed: possible deadlock in ext4_xattr_set_handle run #14: crashed: possible deadlock in do_writepages run #15: crashed: WARNING: possible circular locking dependency detected run #16: OK run #17: OK run #18: OK run #19: OK representative crash: possible deadlock in ext4_xattr_set_handle, types: [LOCKDEP] # git bisect good 9333cc809f0a89e001b814155a6cb8903a6274df 7461c60b9c6a839b13ad4c3490681a0cf5aa0637 is the first bad commit commit 7461c60b9c6a839b13ad4c3490681a0cf5aa0637 Author: Yun Zhou Date: Tue Jun 23 14:19:02 2026 +0800 ext4: skip extra isize expansion during mount to prevent deadlock ext4_try_to_expand_extra_isize() is called from __ext4_mark_inode_dirty() while holding an active jbd2 handle. During mount (!SB_ACTIVE), the expand path may move xattrs to external blocks and release ea_inodes via iput(). When !SB_ACTIVE, iput() calls write_inode_now() which acquires s_writepages_rwsem, creating a circular lock dependency: s_writepages_rwsem --> jbd2_handle --> xattr_sem --> s_writepages_rwsem This can be triggered via: ext4_process_orphan() -> ext4_truncate() -> ext4_mark_inode_dirty() -> ext4_try_to_expand_extra_isize() or: ext4_evict_inode() -> ext4_mark_inode_dirty() -> ext4_try_to_expand_extra_isize() Skip expansion when !SB_ACTIVE. This is a minor loss of functionality (extra isize won't grow for these inodes during mount), which e2fsck can resolve later if needed. Reported-by: syzbot+5d19358d7eb30ffb0cc5@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=5d19358d7eb30ffb0cc5 Fixes: c8585c6fcaf2 ("ext4: fix races between changing inode journal mode and ext4_writepages") Signed-off-by: Yun Zhou Reviewed-by: Jan Kara Link: https://patch.msgid.link/20260623061903.2148767-1-yun.zhou@windriver.com Signed-off-by: Theodore Ts'o fs/ext4/inode.c | 10 ++++++++++ 1 file changed, 10 insertions(+) accumulated error probability: 0.00 culprit signature: 7fd1500ce5998e656c9bee1659b6746a74f8bb7777a771a882a48178c2922f29 parent signature: 4a76add094f4fbf86093014eedc95e3274bbd6b92325f3d0ab1ae9beb8114f6b reproducer is flaky (0.67 repro chance estimate) revisions tested: 33, total time: 12h2m56.531974929s (build: 4h6m49.083892443s, test: 6h31m2.182882584s) first good commit: 7461c60b9c6a839b13ad4c3490681a0cf5aa0637 ext4: skip extra isize expansion during mount to prevent deadlock recipients (to): ["jack@suse.cz" "tytso@mit.edu" "yun.zhou@windriver.com"] recipients (cc): []