ci2 starts bisection 2024-12-16 10:04:28.577859256 +0000 UTC m=+96.862841098 bisecting cause commit starting from 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 building syzkaller on 7cbfbb3ab457b0a8ecf525a27a65a2078c5dcaa8 ensuring issue is reproducible on original commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ae32ffe3a72185fef354ab273ee65a257b4cd1f5764b87ee1566e30d1c5c1b36 run #0: crashed: possible deadlock in xfs_dquot_detach_buf run #1: crashed: possible deadlock in xfs_dquot_detach_buf run #2: crashed: possible deadlock in xfs_dquot_detach_buf run #3: crashed: possible deadlock in xfs_dquot_detach_buf run #4: crashed: possible deadlock in xfs_dquot_detach_buf run #5: crashed: possible deadlock in xfs_dquot_detach_buf run #6: crashed: possible deadlock in xfs_dquot_detach_buf run #7: crashed: possible deadlock in xfs_dquot_detach_buf run #8: crashed: possible deadlock in xfs_dquot_detach_buf run #9: crashed: possible deadlock in xfs_dquot_detach_buf run #10: crashed: possible deadlock in xfs_dquot_detach_buf run #11: crashed: possible deadlock in xfs_dquot_detach_buf run #12: crashed: possible deadlock in xfs_dquot_detach_buf run #13: crashed: possible deadlock in xfs_dquot_detach_buf run #14: crashed: possible deadlock in xfs_dquot_detach_buf run #15: crashed: possible deadlock in xfs_dquot_detach_buf run #16: crashed: possible deadlock in xfs_dquot_detach_buf run #17: crashed: possible deadlock in xfs_dquot_detach_buf run #18: crashed: possible deadlock in xfs_dquot_detach_buf run #19: OK representative crash: possible deadlock in xfs_dquot_detach_buf, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 06baca496085ca3460b1c19fa3abc29d87df00fe6b898a73ce95bda790464ec1 all runs: crashed: possible deadlock in xfs_dquot_detach_buf representative crash: possible deadlock in xfs_dquot_detach_buf, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=4037 full=8235 leaves diff=2125 split chunks (needed=false): <2125> split chunk #0 of len 2125 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9df88dfcd5e4f85874bbf5d6fbbe49e73eb3eebb61faf94129a1b0f47063f38f all runs: crashed: possible deadlock in xfs_dquot_detach_buf representative crash: possible deadlock in xfs_dquot_detach_buf, 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 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8: drivers/gpu/drm/bridge/aux-bridge.c:116: undefined reference to `devm_drm_of_get_bridge' testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 67e59131e2984ab98466b1f04d76d9083c0cadce2517d8cf9c84c253b6ad7e4b all runs: crashed: possible deadlock in xfs_dquot_detach_buf representative crash: possible deadlock in xfs_dquot_detach_buf, 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 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d8fccdc957c9bd7f630615cfaddcec63d4ba04ce5b11223af7e7b88560c7bd22 all runs: crashed: possible deadlock in xfs_dquot_detach_buf representative crash: possible deadlock in xfs_dquot_detach_buf, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 12d00bee332c43a4554b6b3f0f15988ab8f2462cca7c4d195dffcb52e209bb6f all runs: OK false negative chance: 0.000 minimized to 850 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CHARGER_BQ24190 CMA COMMON_CLK CONTIG_ALLOC DAX DLM DRM DRM_BRIDGE DRM_I915 DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_CXUSB_ANALOG DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EEPROM_93CX6 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_BACKED_BY_FILE EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EVM_EXTRA_SMACK_XATTRS EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY EXTCON EXTCON_INTEL_CHT_WC EXTCON_PTN5150 EXTCON_USBC_TUSB320 F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CORE FB_DEFERRED_IO FB_DEVICE FB_IOMEM_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_STACK FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENERIC_PHY GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GNSS GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_LJCA GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GROUP_SCHED_WEIGHT GTP GUEST_PERF_EVENTS GVE HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO HAVE_KVM_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_KVM_READONLY_MEM HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2200 HID_MCP2221 HID_MEGAWORLD_FF HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SIGMAMICRO HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TOPRE HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZEROPLUS HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_CP2615 I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_HID_ACPI I2C_HID_CORE I2C_HID_OF I2C_LJCA I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_CHTWC_INT33FE INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISHTP_ECLITE INTEL_ISH_FIRMWARE_DOWNLOADER INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_DRIVER_CORE IOMMUFD_TEST IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_NF_SECURITY IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IRQ_REMAP IRQ_TIME_ACCOUNTING KVM KVM_INTEL LAPB LCD_CLASS_DEVICE LIBNVDIMM MAC802154 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_DLN2 MFD_VIPERBOARD MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND SPI SSB STAGING TAP TARGET_CORE TRANSPARENT_HUGEPAGE TUN TYPEC TYPEC_MUX_PI3USB30532 USB_AMD5536UDC USB_ATM USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_GADGET USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST 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 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_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_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_MV_U3D USB_MV_UDC USB_NET2272 USB_NET2272_DMA 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_ROLES_INTEL_XHCI USB_ROLE_SWITCH 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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_FS 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 WAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK 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 XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA Z3FOLD Z3FOLD_DEPRECATED ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE ZPOOL 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 ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED] disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed picked [v6.12 v6.11 v6.10 v6.8 v6.6 v6.4 v6.2 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 35 release tags testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f8b625a539e570680b6a97848792073c6a392b872fab9490dda581d3a74a0af0 all runs: OK false negative chance: 0.000 # git bisect start 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 adc218676eef25575469234709c2d87185ca223a Bisecting: 6835 revisions left to test after this (roughly 13 steps) [071b34dcf71523a559b6c39f5d21a268a9531b50] Merge tag 'sound-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 071b34dcf71523a559b6c39f5d21a268a9531b50 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cd1cc4fe06ce8a07a9766ed4bcb9bfa7b87ec485fb2af349f10785abdff7d382 all runs: OK false negative chance: 0.000 # git bisect good 071b34dcf71523a559b6c39f5d21a268a9531b50 Bisecting: 3418 revisions left to test after this (roughly 12 steps) [0637a68b9c6c1dfffcc1fca003cb7cd3257c3c03] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit 0637a68b9c6c1dfffcc1fca003cb7cd3257c3c03 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e6a527fa1f36e987f36e9a3859e3a71252c0eb0050a6e5ba94a8f636d1db9905 all runs: OK false negative chance: 0.000 # git bisect good 0637a68b9c6c1dfffcc1fca003cb7cd3257c3c03 Bisecting: 1793 revisions left to test after this (roughly 11 steps) [55cb93fd243bad2c6e15f9151a32f575d2f5371f] Merge tag 'driver-core-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core testing commit 55cb93fd243bad2c6e15f9151a32f575d2f5371f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4f5bc63a49a34322fa2f81980c9b9bc5ab18b96e0511c29f0a845dd03da6c147 all runs: OK false negative chance: 0.000 # git bisect good 55cb93fd243bad2c6e15f9151a32f575d2f5371f Bisecting: 914 revisions left to test after this (roughly 10 steps) [dd54fcced81d479d77acbeb4eea74b9ab9276bff] Merge tag 'io_uring-6.13-20242901' of git://git.kernel.dk/linux testing commit dd54fcced81d479d77acbeb4eea74b9ab9276bff gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6316e62e5a8945201fef360115b9bf5cff7229d94922d061b4bc29697843a32a all runs: OK false negative chance: 0.000 # git bisect good dd54fcced81d479d77acbeb4eea74b9ab9276bff Bisecting: 451 revisions left to test after this (roughly 9 steps) [c94cd0248ced494e0bcf82b21380e8037c4dd26b] Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit c94cd0248ced494e0bcf82b21380e8037c4dd26b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1ccd5a773529417dd8b922b448144b57763afb0b22554f911ee09123c992bd06 all runs: OK false negative chance: 0.000 # git bisect good c94cd0248ced494e0bcf82b21380e8037c4dd26b Bisecting: 219 revisions left to test after this (roughly 8 steps) [de20dc2b9604f5130f62d19905cbfae7453fae80] Merge tag 'sound-6.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit de20dc2b9604f5130f62d19905cbfae7453fae80 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1243c6314a9044c411fc482807ea11fcca202e8fea0b7cd2f5a755bd0678fc45 all runs: OK false negative chance: 0.000 # git bisect good de20dc2b9604f5130f62d19905cbfae7453fae80 Bisecting: 107 revisions left to test after this (roughly 7 steps) [a446e965a188ee8f745859e63ce046fe98577d45] Merge tag '6.13-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 testing commit a446e965a188ee8f745859e63ce046fe98577d45 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 203064f8fc8e91029c8261afc0bbfafea8984f0a519902b6ce3f1550240e4c6a all runs: crashed: possible deadlock in xfs_dquot_detach_buf representative crash: possible deadlock in xfs_dquot_detach_buf, types: [LOCKDEP] # git bisect bad a446e965a188ee8f745859e63ce046fe98577d45 Bisecting: 55 revisions left to test after this (roughly 6 steps) [2a816e4f6a407cfbd7a8345a0c09473eff656139] Merge tag 'io_uring-6.13-20241213' of git://git.kernel.dk/linux testing commit 2a816e4f6a407cfbd7a8345a0c09473eff656139 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f59c05c1efd7c8344af651a02ec916fc7f68d5a91d01e02e5e4ff61261f50fce all runs: crashed: possible deadlock in xfs_dquot_detach_buf representative crash: possible deadlock in xfs_dquot_detach_buf, types: [LOCKDEP] # git bisect bad 2a816e4f6a407cfbd7a8345a0c09473eff656139 Bisecting: 27 revisions left to test after this (roughly 5 steps) [12f2930f5f91bc0d67794c69d1961098c7c72040] xfs: port xfs_ioc_start_commit to multigrain timestamps testing commit 12f2930f5f91bc0d67794c69d1961098c7c72040 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7975834d00db05454937a2c2edb031101f9b2037b44b8d369ad3dd218709a96c all runs: crashed: possible deadlock in xfs_dquot_detach_buf representative crash: possible deadlock in xfs_dquot_detach_buf, types: [LOCKDEP] # git bisect bad 12f2930f5f91bc0d67794c69d1961098c7c72040 Bisecting: 13 revisions left to test after this (roughly 4 steps) [44d9b07e52db25035680713c3428016cadcd2ea1] xfs: only run precommits once per transaction object testing commit 44d9b07e52db25035680713c3428016cadcd2ea1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e1284efdb0b856285674be75f6b335fad1ada115aca6138c359cfaa8f99d23b3 all runs: OK false negative chance: 0.000 # git bisect good 44d9b07e52db25035680713c3428016cadcd2ea1 Bisecting: 6 revisions left to test after this (roughly 3 steps) [ca378189fdfa890a4f0622f85ee41b710bbac271] xfs: convert quotacheck to attach dquot buffers testing commit ca378189fdfa890a4f0622f85ee41b710bbac271 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b36f7bdc5e7518011d5d110f834096edb2bf646042634be7eb59fb76cc1ccdf6 all runs: crashed: possible deadlock in xfs_dquot_detach_buf representative crash: possible deadlock in xfs_dquot_detach_buf, types: [LOCKDEP] # git bisect bad ca378189fdfa890a4f0622f85ee41b710bbac271 Bisecting: 3 revisions left to test after this (roughly 2 steps) [07137e925fa951646325762bda6bd2503dfe64c6] xfs: don't lose solo dquot update transactions testing commit 07137e925fa951646325762bda6bd2503dfe64c6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d1f71f2173a8e34ea51e192a1edaba19266dde098dec8f734ba585757be44b5b all runs: OK false negative chance: 0.000 # git bisect good 07137e925fa951646325762bda6bd2503dfe64c6 Bisecting: 1 revision left to test after this (roughly 1 step) [ec88b41b932d5731291dcc0d0d63ea13ab8e07d5] xfs: clean up log item accesses in xfs_qm_dqflush{,_done} testing commit ec88b41b932d5731291dcc0d0d63ea13ab8e07d5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6940affe1d76f1d39367c55fd9499b64d9bbd09c7699ae15c5fb3b1143f6860e all runs: OK false negative chance: 0.000 # git bisect good ec88b41b932d5731291dcc0d0d63ea13ab8e07d5 Bisecting: 0 revisions left to test after this (roughly 0 steps) [acc8f8628c3737108f36e5637f4d5daeaf96d90e] xfs: attach dquot buffer to dquot log item buffer testing commit acc8f8628c3737108f36e5637f4d5daeaf96d90e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b75d68b27a206787c3b36a61d611272b8dcb9fecf5592bd4ef746f69f4fbd87 all runs: OK false negative chance: 0.000 # git bisect good acc8f8628c3737108f36e5637f4d5daeaf96d90e ca378189fdfa890a4f0622f85ee41b710bbac271 is the first bad commit commit ca378189fdfa890a4f0622f85ee41b710bbac271 Author: Darrick J. Wong Date: Mon Dec 2 10:57:39 2024 -0800 xfs: convert quotacheck to attach dquot buffers Now that we've converted the dquot logging machinery to attach the dquot buffer to the li_buf pointer so that the AIL dqflush doesn't have to allocate or read buffers in a reclaim path, do the same for the quotacheck code so that the reclaim shrinker dqflush call doesn't have to do that either. Cc: # v6.12 Fixes: 903edea6c53f09 ("mm: warn about illegal __GFP_NOFAIL usage in a more appropriate location and manner") Signed-off-by: "Darrick J. Wong" Reviewed-by: Christoph Hellwig fs/xfs/xfs_dquot.c | 9 +++------ fs/xfs/xfs_dquot.h | 2 -- fs/xfs/xfs_qm.c | 18 +++++++++++++----- 3 files changed, 16 insertions(+), 13 deletions(-) accumulated error probability: 0.00 culprit signature: b36f7bdc5e7518011d5d110f834096edb2bf646042634be7eb59fb76cc1ccdf6 parent signature: 5b75d68b27a206787c3b36a61d611272b8dcb9fecf5592bd4ef746f69f4fbd87 revisions tested: 21, total time: 7h50m15.721891604s (build: 4h11m43.699508554s, test: 2h39m3.38281299s) first bad commit: ca378189fdfa890a4f0622f85ee41b710bbac271 xfs: convert quotacheck to attach dquot buffers recipients (to): ["djwong@kernel.org" "hch@lst.de"] recipients (cc): [] crash: possible deadlock in xfs_dquot_detach_buf loop2: detected capacity change from 0 to 65536 XFS (loop2): Mounting V5 Filesystem d6f69dbd-8c5d-46be-b88e-92c0ae88ceb2 XFS (loop2): Ending clean mount XFS (loop2): Quotacheck needed: Please wait. XFS (loop2): Quotacheck: Done. ====================================================== WARNING: possible circular locking dependency detected 6.13.0-rc2-syzkaller #0 Not tainted ------------------------------------------------------ syz.2.16/4379 is trying to acquire lock: ffff88817ec1c170 (&lp->qli_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline] ffff88817ec1c170 (&lp->qli_lock){+.+.}-{3:3}, at: xfs_dquot_detach_buf+0x1b/0x90 fs/xfs/xfs_dquot.c:83 but task is already holding lock: ffff888107fc90b0 (&l->lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline] ffff888107fc90b0 (&l->lock){+.+.}-{3:3}, at: lock_list_lru_of_memcg+0x120/0x1e0 mm/list_lru.c:77 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&l->lock){+.+.}-{3:3}: __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] lock_list_lru_of_memcg+0x120/0x1e0 mm/list_lru.c:77 list_lru_add+0x33/0xe0 mm/list_lru.c:164 xfs_buf_rele_cached fs/xfs/xfs_buf.c:1106 [inline] xfs_buf_rele+0x136/0x940 fs/xfs/xfs_buf.c:1151 xfs_imap_lookup+0x126/0x1c0 fs/xfs/libxfs/xfs_ialloc.c:2431 xfs_imap+0x14e/0x250 xfs_iget_cache_miss fs/xfs/xfs_icache.c:644 [inline] xfs_iget+0x35b/0xea0 fs/xfs/xfs_icache.c:806 xfs_mountfs+0x503/0x900 fs/xfs/xfs_mount.c:919 xfs_fs_fill_super+0x679/0x7f0 fs/xfs/xfs_super.c:1791 get_tree_bdev_flags+0x13f/0x1c0 fs/super.c:1636 vfs_get_tree+0x24/0xb0 fs/super.c:1814 do_new_mount+0x15a/0x3a0 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x174/0x1e0 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa0/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&bch->bc_lock){+.+.}-{3:3}: __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] _atomic_dec_and_lock+0x2c/0x50 lib/dec_and_lock.c:28 xfs_buf_rele_cached fs/xfs/xfs_buf.c:1085 [inline] xfs_buf_rele+0xbc/0x940 fs/xfs/xfs_buf.c:1151 xfs_imap_lookup+0x126/0x1c0 fs/xfs/libxfs/xfs_ialloc.c:2431 xfs_imap+0x14e/0x250 xfs_iget_cache_miss fs/xfs/xfs_icache.c:644 [inline] xfs_iget+0x35b/0xea0 fs/xfs/xfs_icache.c:806 xfs_mountfs+0x503/0x900 fs/xfs/xfs_mount.c:919 xfs_fs_fill_super+0x679/0x7f0 fs/xfs/xfs_super.c:1791 get_tree_bdev_flags+0x13f/0x1c0 fs/super.c:1636 vfs_get_tree+0x24/0xb0 fs/super.c:1814 do_new_mount+0x15a/0x3a0 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x174/0x1e0 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa0/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&bp->b_lock){+.+.}-{3:3}: __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] xfs_buf_rele_cached fs/xfs/xfs_buf.c:1084 [inline] xfs_buf_rele+0xaa/0x940 fs/xfs/xfs_buf.c:1151 xfs_dquot_attach_buf+0x10e/0x180 fs/xfs/xfs_dquot.c:1345 xfs_qm_quotacheck_dqadjust+0x53/0x140 fs/xfs/xfs_qm.c:1334 xfs_qm_dqusage_adjust+0x1a1/0x220 fs/xfs/xfs_qm.c:1457 xfs_iwalk_ag_recs+0x133/0x1b0 fs/xfs/xfs_iwalk.c:209 xfs_iwalk_run_callbacks+0x8d/0x130 fs/xfs/xfs_iwalk.c:370 xfs_iwalk_ag+0x202/0x2a0 fs/xfs/xfs_iwalk.c:476 xfs_iwalk_ag_work+0x4e/0x90 fs/xfs/xfs_iwalk.c:625 xfs_pwork_work+0x17/0x60 fs/xfs/xfs_pwork.c:47 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0x2ab/0x5c0 kernel/workqueue.c:3310 worker_thread+0x23e/0x2e0 kernel/workqueue.c:3391 kthread+0xea/0x100 kernel/kthread.c:389 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 -> #0 (&lp->qli_lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x1236/0x2570 kernel/locking/lockdep.c:5226 lock_acquire+0xeb/0x270 kernel/locking/lockdep.c:5849 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] xfs_dquot_detach_buf+0x1b/0x90 fs/xfs/xfs_dquot.c:83 xfs_qm_dquot_isolate+0x13e/0x530 fs/xfs/xfs_qm.c:528 __list_lru_walk_one+0xb4/0x1a0 mm/list_lru.c:301 list_lru_walk_one+0xb/0x20 mm/list_lru.c:338 list_lru_shrink_walk include/linux/list_lru.h:240 [inline] xfs_qm_shrink_scan+0x70/0x100 fs/xfs/xfs_qm.c:574 do_shrink_slab+0x24f/0x5a0 mm/shrinker.c:437 shrink_slab+0x1d3/0x7e0 mm/shrinker.c:664 drop_slab_node mm/vmscan.c:414 [inline] drop_slab+0x89/0x100 mm/vmscan.c:432 drop_caches_sysctl_handler+0x4b/0xb0 fs/drop_caches.c:68 proc_sys_call_handler+0x19d/0x2c0 fs/proc/proc_sysctl.c:601 do_iter_readv_writev+0x172/0x1c0 vfs_writev+0x214/0x410 fs/read_write.c:1050 do_writev+0x71/0x110 fs/read_write.c:1096 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa0/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &lp->qli_lock --> &bch->bc_lock --> &l->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&l->lock); lock(&bch->bc_lock); lock(&l->lock); lock(&lp->qli_lock); *** DEADLOCK *** 4 locks held by syz.2.16/4379: #0: ffff88811725f5f8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x7c/0xb0 fs/file.c:1191 #1: ffff888115e85410 (sb_writers#3){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline] #1: ffff888115e85410 (sb_writers#3){.+.+}-{0:0}, at: vfs_writev+0x1f2/0x410 fs/read_write.c:1048 #2: ffff888107fc90b0 (&l->lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline] #2: ffff888107fc90b0 (&l->lock){+.+.}-{3:3}, at: lock_list_lru_of_memcg+0x120/0x1e0 mm/list_lru.c:77 #3: ffff88817ec1c258 (&xfs_dquot_group_class){+.+.}-{4:4}, at: xfs_dqlock_nowait fs/xfs/xfs_dquot.h:126 [inline] #3: ffff88817ec1c258 (&xfs_dquot_group_class){+.+.}-{4:4}, at: xfs_qm_dquot_isolate+0x37/0x530 fs/xfs/xfs_qm.c:467 stack backtrace: CPU: 0 UID: 0 PID: 4379 Comm: syz.2.16 Not tainted 6.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xa3/0x100 lib/dump_stack.c:120 print_circular_bug+0x28d/0x2a0 kernel/locking/lockdep.c:2074 check_noncircular+0x119/0x140 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x1236/0x2570 kernel/locking/lockdep.c:5226 lock_acquire+0xeb/0x270 kernel/locking/lockdep.c:5849 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] xfs_dquot_detach_buf+0x1b/0x90 fs/xfs/xfs_dquot.c:83 xfs_qm_dquot_isolate+0x13e/0x530 fs/xfs/xfs_qm.c:528 __list_lru_walk_one+0xb4/0x1a0 mm/list_lru.c:301 list_lru_walk_one+0xb/0x20 mm/list_lru.c:338 list_lru_shrink_walk include/linux/list_lru.h:240 [inline] xfs_qm_shrink_scan+0x70/0x100 fs/xfs/xfs_qm.c:574 do_shrink_slab+0x24f/0x5a0 mm/shrinker.c:437 shrink_slab+0x1d3/0x7e0 mm/shrinker.c:664 drop_slab_node mm/vmscan.c:414 [inline] drop_slab+0x89/0x100 mm/vmscan.c:432 drop_caches_sysctl_handler+0x4b/0xb0 fs/drop_caches.c:68 proc_sys_call_handler+0x19d/0x2c0 fs/proc/proc_sysctl.c:601 do_iter_readv_writev+0x172/0x1c0 vfs_writev+0x214/0x410 fs/read_write.c:1050 do_writev+0x71/0x110 fs/read_write.c:1096 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa0/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3624385d19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f36251af038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f3624575fa0 RCX: 00007f3624385d19 RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007f3624401a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3624575fa0 R15: 00007ffda331ef48 syz.2.16 (4379): drop_caches: 2