ci2 starts bisection 2026-10-04 07:14:55.545730821 +0000 UTC m=+136313.129058171 bisecting cause commit starting from a74306e2e676f9775457366fc047a660fbf02f26 building syzkaller on 57bbd979bc50a3acd0eac610ef944726ba358063 ensuring issue is reproducible on original commit a74306e2e676f9775457366fc047a660fbf02f26 testing commit a74306e2e676f9775457366fc047a660fbf02f26 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 4b01c07badd45a0480777270fd3735c8c5bd9d4e4b0db4c85c668f585eed17de all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit a74306e2e676f9775457366fc047a660fbf02f26 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 68c60c8501bf351e40d99fc369d54f740f0b97a0c33dd8f0f5c529628440e9ce all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [ubsan bug_or_warning kasan atomic_sleep hang memleak], they are not needed kconfig minimization: base=4167 full=8449 leaves diff=2103 split chunks (needed=false): <2103> split chunk #0 of len 2103 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 a74306e2e676f9775457366fc047a660fbf02f26 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: f428b866a29c6663142c29cd2c391125c6a0e4b33f6fbe206875aa83a194d368 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [hang memleak ubsan bug_or_warning kasan atomic_sleep], they are not needed testing commit a74306e2e676f9775457366fc047a660fbf02f26 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 9176c74f84ed0fbc0d205d2ae131578f578472441f91af14f22e40bc3cb65aae all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit a74306e2e676f9775457366fc047a660fbf02f26 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 8c13882dce5b859de1f56d4d8018d61d887cdd489f97ee58ec32989e8346e104 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ubsan bug_or_warning kasan atomic_sleep hang memleak], they are not needed testing commit a74306e2e676f9775457366fc047a660fbf02f26 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 81b919ea553daee39d18a2283ce73bf92a367387cd50490cf7cfb2ba41750532 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit a74306e2e676f9775457366fc047a660fbf02f26 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 9e1d0fe51f1e60098a66aa1dce06529793c387a368ba256017b5c1ad744a8f7d all runs: OK false negative chance: 0.000 minimized to 419 configs; suspects: [ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT COMMON_CLK CONTIG_ALLOC DVB_CORE EXTCON GPIOLIB HAVE_ARCH_USERFAULTFD_WP HID_ZEROPLUS I2C_MUX IIO IOMMUFD KVM KVM_INTEL LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_VIPERBOARD NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CHIPIDEA USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_GENERIC_PLAT USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_NET2280 USB_NET_AQC111 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERFAULTFD_RWP USERIO USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEO VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VIRT_XFER_TO_GUEST_WORK VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXLAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_MORSEMICRO WLAN_VENDOR_NXP WLAN_VENDOR_SILABS X86_FRED X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_IPTFS XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_BTREE_IN_MEM XFS_DRAIN_INTENTS XFS_FS XFS_LIVE_HOOKS XFS_MEMORY_BUFS XFS_ONLINE_REPAIR XFS_ONLINE_SCRUB XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS XOR_BLOCKS_ARCH YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON] disabling configs for [ubsan bug_or_warning kasan atomic_sleep hang memleak], they are not needed picked [v7.2 v7.1 v7.0 v6.18 v6.16 v6.14 v6.12 v6.10 v6.7 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 45 release tags testing release v7.2 testing commit 8d3ae59288f1e7d58d76558a6ee96d533bc5019f gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 9441eb7ea517832e91179c8da3c33b09d5d5ed7f5e22a6821695a20355b1f282 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] testing release v7.1 testing commit 8cd9520d35a6c38db6567e97dd93b1f11f185dc6 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 43f2f0a69679d5415dd01fc39b5aad877f46428536735f336ec9bde0cca47484 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] testing release v7.0 testing commit 028ef9c96e96197026887c0f092424679298aae8 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 11864f1caf0598f6908acba82678d8bf1030b8062ac3afaa99537cdb43a67d3e all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] testing release v6.18 testing commit 7d0a66e4bb9081d75c82ec4957c50034cb0ea449 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 04856dacd0b31ff560a5977904720912aadec25000b424fb20b8772878f59ca2 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] testing release v6.16 testing commit 038d61fd642278bab63ee8ef722c50d10ab01e8f gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 6b0b1ae6b77c819771ce322f1812dbc2dcbb902921d6c8d9e813603d57c4823b all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] testing release v6.14 testing commit 38fec10eb60d687e30c8c6b5420d86e8149f7557 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 18bcb2e079c2e5c5d47baaae972b79486f3aee368f2cb476cf4406871c681015 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 694c9dbc323522f17196f1e98cf6dcd4b818e7929b3213d423918b09290bd148 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] testing release v6.10 testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: e217cb6f2dcfaef3c37d5ac595dd9353d6093c3b503c560df4418556bcb20566 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] testing release v6.7 testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building 0dd3ee31125508cd67f7e7172247f05b7fd1753a: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] :522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] :527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:508:43: error: In file included from arch/x86/pci/i386.c:31: 508 | return v./include/linux/vmstat.hmstat_te:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] xt[NR_VM_ZONE_./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 2004e7c2717bf7bdf9bf066d14e388220da1492cb0adf76a86702a4524365f13 all runs: OK false negative chance: 0.000 # git bisect start 0c3836482481200ead7b416ca80c68a29cfdaabd 6995e2de6891c724bfeb2db33d7b87775f913ad1 Bisecting: 47079 revisions left to test after this (roughly 16 steps) [a13fee31f56449fc600d9e064c7b32302f92dcef] Merge v6.7-rc3 into drm-next testing commit a13fee31f56449fc600d9e064c7b32302f92dcef gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building a13fee31f56449fc600d9e064c7b32302f92dcef: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] node_s./include/linux/vmstat.htat_name(NR_LRU_BASE + lru) :522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] + 3; ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] :515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43:. .error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] # git bisect skip a13fee31f56449fc600d9e064c7b32302f92dcef Bisecting: 47121 revisions left to test after this (roughly 16 steps) [0e8af20517197934cc04f8e361c6bbe198c327fd] drm/amdgpu: Update fw version for boot time error query testing commit 0e8af20517197934cc04f8e361c6bbe198c327fd gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building 0e8af20517197934cc04f8e361c6bbe198c327fd: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] 528 | ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] :36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] 515 | retur./include/linux/vmstat.hn vmstat_text[NR_VM_ZONE_S:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] :536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] # git bisect skip 0e8af20517197934cc04f8e361c6bbe198c327fd Bisecting: 47121 revisions left to test after this (roughly 16 steps) [648c3814dcf6fde9e654da01d2963e73077d07fd] drm/nouveau/disp: don't misuse kernel-doc comments testing commit 648c3814dcf6fde9e654da01d2963e73077d07fd gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building 648c3814dcf6fde9e654da01d2963e73077d07fd: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] # git bisect skip 648c3814dcf6fde9e654da01d2963e73077d07fd Bisecting: 47121 revisions left to test after this (roughly 16 steps) [84c7786499880d47fbcf0cee9661fd96e026ab2a] arm64: dts: qcom: sdm845-mtp: specify wifi variant testing commit 84c7786499880d47fbcf0cee9661fd96e026ab2a gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building 84c7786499880d47fbcf0cee9661fd96e026ab2a: 536 | return ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] AT_ITEMS +./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] 537 | NR_./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] 522 | ./include/linux/vmstat.h return node_stat_name(NR_LR:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] U_BA./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] // ski./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] # git bisect skip 84c7786499880d47fbcf0cee9661fd96e026ab2a Bisecting: 47121 revisions left to test after this (roughly 16 steps) [f099c961f4998ad7107b1c6a7d6efb225e9a4614] fs: remove clean_page_buffers() testing commit f099c961f4998ad7107b1c6a7d6efb225e9a4614 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building f099c961f4998ad7107b1c6a7d6efb225e9a4614: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] :515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] :522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] # git bisect skip f099c961f4998ad7107b1c6a7d6efb225e9a4614 Bisecting: 47121 revisions left to test after this (roughly 16 steps) [d65d4a2c3867a04ee4ae9c99747a6398b58e269b] ASoC: SOF: sof-client: fix build when only IPC4 is selected testing commit d65d4a2c3867a04ee4ae9c99747a6398b58e269b gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building d65d4a2c3867a04ee4ae9c99747a6398b58e269b: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] # git bisect skip d65d4a2c3867a04ee4ae9c99747a6398b58e269b Bisecting: 47121 revisions left to test after this (roughly 16 steps) [94ed00981b5167e22f66fd5bfedcc7cc7fd72551] media: v4l: cci: Add driver-private bit definitions testing commit 94ed00981b5167e22f66fd5bfedcc7cc7fd72551 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building 94ed00981b5167e22f66fd5bfedcc7cc7fd72551: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] # git bisect skip 94ed00981b5167e22f66fd5bfedcc7cc7fd72551 Bisecting: 47121 revisions left to test after this (roughly 16 steps) [6007265ad70a87aa9b4eea79b5e5828da452cfd8] drm/i915: Register engines early to avoid type confusion testing commit 6007265ad70a87aa9b4eea79b5e5828da452cfd8 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building 6007265ad70a87aa9b4eea79b5e5828da452cfd8: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] :515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] # git bisect skip 6007265ad70a87aa9b4eea79b5e5828da452cfd8 Bisecting: 47121 revisions left to test after this (roughly 16 steps) [0aac13add26d546ac74c89d2883b3a5f0fbea039] selftests: secretmem: floor the memory size to the multiple of page_size testing commit 0aac13add26d546ac74c89d2883b3a5f0fbea039 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building 0aac13add26d546ac74c89d2883b3a5f0fbea039: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] # git bisect skip 0aac13add26d546ac74c89d2883b3a5f0fbea039 Bisecting: 47121 revisions left to test after this (roughly 16 steps) [2a2f97e5f46cdb949f967bea7b2c9e514692a392] drm/amd/display: Drop legacy code testing commit 2a2f97e5f46cdb949f967bea7b2c9e514692a392 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 030bf9a229467dc832f016e13472d87d62467bba360bd02afe720a9592513f66 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] # git bisect bad 2a2f97e5f46cdb949f967bea7b2c9e514692a392 Bisecting: 31916 revisions left to test after this (roughly 15 steps) [9e87705289667a6c5185c619ea32f3d39314eb1b] Merge tag 'bcachefs-2023-10-30' of https://evilpiepirate.org/git/bcachefs testing commit 9e87705289667a6c5185c619ea32f3d39314eb1b gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building 9e87705289667a6c5185c619ea32f3d39314eb1b: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] In file included from ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] :527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] # git bisect skip 9e87705289667a6c5185c619ea32f3d39314eb1b Bisecting: 31916 revisions left to test after this (roughly 15 steps) [4c1a89d983be951a3e39d7f9c1d6987f3054e32d] powerpc/nohash: Move 8xx version of pte_update() into pte-8xx.h testing commit 4c1a89d983be951a3e39d7f9c1d6987f3054e32d gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 failed building 4c1a89d983be951a3e39d7f9c1d6987f3054e32d: ./include/linux/vmstat.h:508:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:515:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:522:36: error: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:527:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] ./include/linux/vmstat.h:536:43: error: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Werror,-Wenum-enum-conversion] # git bisect skip 4c1a89d983be951a3e39d7f9c1d6987f3054e32d Bisecting: 31916 revisions left to test after this (roughly 15 steps) [b7df0f340b64c543bb84c42698347f08b6e18fe2] gpio: mxs: fix Wvoid-pointer-to-enum-cast warning testing commit b7df0f340b64c543bb84c42698347f08b6e18fe2 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: c0f5cedeb976429c8ca7472cdfffd93f5ab6e73cfe5c2ffd0fff3b4a6dfc26af all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] # git bisect bad b7df0f340b64c543bb84c42698347f08b6e18fe2 Bisecting: 5499 revisions left to test after this (roughly 13 steps) [1b722407a13b7f8658d2e26917791f32805980a2] Merge tag 'drm-next-2023-06-29' of git://anongit.freedesktop.org/drm/drm testing commit 1b722407a13b7f8658d2e26917791f32805980a2 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 40c8f14af945c9948e553d5ef7f4a188a81be5ee690fe5fe1bc658234afa0212 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] # git bisect bad 1b722407a13b7f8658d2e26917791f32805980a2 Bisecting: 2818 revisions left to test after this (roughly 12 steps) [3a8a670eeeaa40d87bd38a587438952741980c18] Merge tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 3a8a670eeeaa40d87bd38a587438952741980c18 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 93af9bd78171c475dd9204e829960043912ff2ce51c66f548872bb36b6baef62 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] # git bisect bad 3a8a670eeeaa40d87bd38a587438952741980c18 Bisecting: 2103 revisions left to test after this (roughly 11 steps) [6e17c6de3ddf3073741d9c91a796ee696914d8a0] Merge tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit 6e17c6de3ddf3073741d9c91a796ee696914d8a0 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 86910be3a557268f2bcfd93495b39e45b6e232ca16eb2a8bdb7d1c7adcd88e3e all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] # git bisect bad 6e17c6de3ddf3073741d9c91a796ee696914d8a0 Bisecting: 1048 revisions left to test after this (roughly 10 steps) [2605e80d3438c77190f55b821c6575048c68268e] Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux testing commit 2605e80d3438c77190f55b821c6575048c68268e gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 0f1ea91c032a473c23194b17121104eb3a3b6d1628aea557fc42c187b16ca00e all runs: OK false negative chance: 0.000 # git bisect good 2605e80d3438c77190f55b821c6575048c68268e Bisecting: 515 revisions left to test after this (roughly 9 steps) [72dc6db7e3b692f46f3386b8dd5101d3f431adef] Merge tag 'wq-for-6.5-cleanup-ordered' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq testing commit 72dc6db7e3b692f46f3386b8dd5101d3f431adef gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 1150368b9bceca1c06616d72724fa4313c9d9ab63bc6152edd70bc868a03a63e all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] # git bisect bad 72dc6db7e3b692f46f3386b8dd5101d3f431adef Bisecting: 263 revisions left to test after this (roughly 8 steps) [a3540495324af9b7fa95b62da2ccbf7cdb4e3622] Merge tag 'docs-6.5' of git://git.lwn.net/linux testing commit a3540495324af9b7fa95b62da2ccbf7cdb4e3622 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 48757e0ba5383df9ef02c3f3e6fc243b8d399946f623d7f903b331fd796e77af all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] # git bisect bad a3540495324af9b7fa95b62da2ccbf7cdb4e3622 Bisecting: 138 revisions left to test after this (roughly 7 steps) [1ef6663a587ba3e57dc5065a477db1c64481eedd] Merge tag 'tag-chrome-platform-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux testing commit 1ef6663a587ba3e57dc5065a477db1c64481eedd gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: d07918d3bdc6ef4448b10d572da9d3942c9027b4c454c6bc6c6bc3a11a01089d all runs: OK false negative chance: 0.000 # git bisect good 1ef6663a587ba3e57dc5065a477db1c64481eedd Bisecting: 85 revisions left to test after this (roughly 6 steps) [dd58d666ac08eb5eb81e4956172fc52b3bf0ab38] selftests/nolibc: make sure gcc always use little endian on MIPS testing commit dd58d666ac08eb5eb81e4956172fc52b3bf0ab38 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 92a17f4f683619c76814a4f43b575366ccd5443464566ca486d8d57325855423 all runs: OK false negative chance: 0.000 # git bisect good dd58d666ac08eb5eb81e4956172fc52b3bf0ab38 Bisecting: 50 revisions left to test after this (roughly 6 steps) [b19edac5992da0188be98454ca592621d3d89844] Merge tag 'nolibc.2023.06.22a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu testing commit b19edac5992da0188be98454ca592621d3d89844 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 58a47d93c6702b5dd8cda56436bfb0e54f401e0388b50c1783ffba3892252042 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] # git bisect bad b19edac5992da0188be98454ca592621d3d89844 Bisecting: 26 revisions left to test after this (roughly 4 steps) [401b0de3ae4fa49d1014c8941e26d9a25f37e7cf] rcu-tasks: Stop rcu_tasks_invoke_cbs() from using never-onlined CPUs testing commit 401b0de3ae4fa49d1014c8941e26d9a25f37e7cf gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: a301ddf89dec9edc969ee9e808a06c488a1dfec538746d5bc5612aa9ddb4c233 all runs: OK false negative chance: 0.000 # git bisect good 401b0de3ae4fa49d1014c8941e26d9a25f37e7cf Bisecting: 18 revisions left to test after this (roughly 4 steps) [6b706e5603c44ff0b6f43c2e26e0d590e1d265f8] rcu/kvfree: Make drain_page_cache() take early return if cache is disabled testing commit 6b706e5603c44ff0b6f43c2e26e0d590e1d265f8 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: bac1f661b7f68fd82e3c31cd91ff2da5d35616de24e6f95e706929b03db5a1a9 all runs: OK false negative chance: 0.000 # git bisect good 6b706e5603c44ff0b6f43c2e26e0d590e1d265f8 Bisecting: 12 revisions left to test after this (roughly 3 steps) [ce2544b2d05ee84cb9be1e05bf3e1a98c72b15dc] torture: Remove duplicated argument -enable-kvm for ppc64 testing commit ce2544b2d05ee84cb9be1e05bf3e1a98c72b15dc gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 82ce6128cbd43a5f437d9f501c8a3a961a0aee7a3f9263c5c1659e9146cfb8c0 all runs: OK false negative chance: 0.000 # git bisect good ce2544b2d05ee84cb9be1e05bf3e1a98c72b15dc Bisecting: 8 revisions left to test after this (roughly 3 steps) [e1bd2334f165aa7bef7f9fa2b0bef97a85614963] rcu: Add more RCU files to kernel-api.rst testing commit e1bd2334f165aa7bef7f9fa2b0bef97a85614963 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 2808286a526da7fb0e2f3ce1a90a78dabf5f73856922047d179ed8b2b0100d2f all runs: OK false negative chance: 0.000 # git bisect good e1bd2334f165aa7bef7f9fa2b0bef97a85614963 Bisecting: 4 revisions left to test after this (roughly 2 steps) [fbde57d2d2995375305917b3c944bc861beb84d4] rcu/nocb: Make shrinker iterate only over NOCB CPUs testing commit fbde57d2d2995375305917b3c944bc861beb84d4 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 78bc3824b626353e4da916f52a3e94f59aabc0a41a01ad64d2bb49fde64f7349 all runs: OK false negative chance: 0.000 # git bisect good fbde57d2d2995375305917b3c944bc861beb84d4 Bisecting: 1 revision left to test after this (roughly 1 step) [2e31da752c6d0e892f2a9232e18da816d04ee691] Merge branches 'doc.2023.05.10a', 'fixes.2023.05.11a', 'kvfree.2023.05.10a', 'nocb.2023.05.11a', 'rcu-tasks.2023.05.10a', 'torture.2023.05.15a' and 'rcu-urgent.2023.06.06a' into HEAD testing commit 2e31da752c6d0e892f2a9232e18da816d04ee691 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 9c605b9bb861d1fad564791e0058843b6fad35de70e247dec7d5c283723c4660 all runs: OK false negative chance: 0.000 # git bisect good 2e31da752c6d0e892f2a9232e18da816d04ee691 Bisecting: 0 revisions left to test after this (roughly 0 steps) [af96134dc8562f9fcbb8358af36f6086619a29ab] Merge tag 'rcu.2023.06.22a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu testing commit af96134dc8562f9fcbb8358af36f6086619a29ab gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: baf351f660e841761d11a7ae877d179ed3eb10ae5fc8587bdb65eb9c6bab7f32 all runs: crashed: possible deadlock in mnt_want_write representative crash: possible deadlock in mnt_want_write, types: [LOCKDEP] # git bisect bad af96134dc8562f9fcbb8358af36f6086619a29ab af96134dc8562f9fcbb8358af36f6086619a29ab is the first bad commit commit af96134dc8562f9fcbb8358af36f6086619a29ab Merge: 1ef6663a587ba 2e31da752c6d0 Author: Linus Torvalds Date: Tue Jun 27 10:37:01 2023 -0700 Merge tag 'rcu.2023.06.22a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull RCU updates from Paul McKenney: "Documentation updates Miscellaneous fixes, perhaps most notably: - Remove RCU_NONIDLE(). The new visibility of most of the idle loop to RCU has obsoleted this API. - Make the RCU_SOFTIRQ callback-invocation time limit also apply to the rcuc kthreads that invoke callbacks for CONFIG_PREEMPT_RT. - Add a jiffies-based callback-invocation time limit to handle long-running callbacks. (The local_clock() function is only invoked once per 32 callbacks due to its high overhead.) - Stop rcu_tasks_invoke_cbs() from using never-onlined CPUs, which fixes a bug that can occur on systems with non-contiguous CPU numbering. kvfree_rcu updates: - Eliminate the single-argument variant of k[v]free_rcu() now that all uses have been converted to k[v]free_rcu_mightsleep(). - Add WARN_ON_ONCE() checks for k[v]free_rcu*() freeing callbacks too soon. Yes, this is closing the barn door after the horse has escaped, but Murphy says that there will be more horses. Callback-offloading updates: - Fix a number of bugs involving the shrinker and lazy callbacks. Tasks RCU updates Torture-test updates" * tag 'rcu.2023.06.22a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (32 commits) torture: Remove duplicated argument -enable-kvm for ppc64 doc/rcutorture: Add description of rcutorture.stall_cpu_block rcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale rcu/rcuscale: Move rcu_scale_*() after kfree_scale_cleanup() rcutorture: Correct name of use_softirq module parameter locktorture: Add long_hold to adjust lock-hold delays rcu/nocb: Make shrinker iterate only over NOCB CPUs rcu-tasks: Stop rcu_tasks_invoke_cbs() from using never-onlined CPUs rcu: Make rcu_cpu_starting() rely on interrupts being disabled rcu: Mark rcu_cpu_kthread() accesses to ->rcu_cpu_has_work rcu: Mark additional concurrent load from ->cpu_no_qs.b.exp rcu: Employ jiffies-based backstop to callback time limit rcu: Check callback-invocation time limit for rcuc kthreads rcu: Remove RCU_NONIDLE() rcu: Add more RCU files to kernel-api.rst rcu-tasks: Clarify the cblist_init_generic() function's pr_info() output rcu-tasks: Avoid pr_info() with spin lock in cblist_init_generic() rcu/nocb: Recheck lazy callbacks under the ->nocb_lock from shrinker rcu/nocb: Fix shrinker race against callback enqueuer rcu/nocb: Protect lazy shrinker against concurrent (de-)offloading ... .../RCU/Design/Requirements/Requirements.rst | 36 +--- Documentation/RCU/whatisRCU.rst | 1 - Documentation/admin-guide/kernel-parameters.txt | 140 ++++++++------- Documentation/core-api/kernel-api.rst | 12 ++ MAINTAINERS | 2 +- drivers/infiniband/sw/rxe/rxe_verbs.c | 2 +- include/linux/rcupdate.h | 54 +----- include/linux/srcu.h | 8 +- kernel/locking/locktorture.c | 51 +++--- kernel/rcu/Kconfig | 18 ++ kernel/rcu/rcu.h | 6 + kernel/rcu/rcuscale.c | 199 +++++++++++---------- kernel/rcu/tasks.h | 12 +- kernel/rcu/tree.c | 131 +++++++++----- kernel/rcu/tree_exp.h | 2 +- kernel/rcu/tree_nocb.h | 52 +++++- kernel/rcu/tree_plugin.h | 4 +- .../testing/selftests/rcutorture/bin/functions.sh | 2 +- .../rcutorture/configs/rcu/BUSTED-BOOST.boot | 2 +- .../selftests/rcutorture/configs/rcu/TREE03.boot | 2 +- 20 files changed, 403 insertions(+), 333 deletions(-) accumulated error probability: 0.00 revisions tested: 34, total time: 10h40m29.945827295s (build: 4h30m29.568745944s, test: 4h33m29.944756043s) first bad commit: af96134dc8562f9fcbb8358af36f6086619a29ab Merge tag 'rcu.2023.06.22a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu recipients (to): ["torvalds@linux-foundation.org"] recipients (cc): [] crash: possible deadlock in mnt_want_write Mass Storage Function, version: 2009/09/11 LUN: removable file: (no medium) ============================================ WARNING: possible recursive locking detected syzkaller #0 Not tainted -------------------------------------------- syz.2.17/3254 is trying to acquire lock: ffff888106ed1438 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x11/0x40 fs/namespace.c:403 but task is already holding lock: ffff888106ed1438 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0xb7/0x2e0 fs/read_write.c:580 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(sb_writers#13); lock(sb_writers#13); *** DEADLOCK *** May be due to missing lock nesting notation 5 locks held by syz.2.17/3254: #0: ffff88810fefecc8 (&f->f_pos_lock){+.+.}-{4:4}, at: __fdget_pos+0x93/0xb0 fs/file.c:1047 #1: ffff888106ed1438 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0xb7/0x2e0 fs/read_write.c:580 #2: ffff88810e29d388 (&buffer->mutex){+.+.}-{4:4}, at: configfs_write_iter+0x2d/0x130 fs/configfs/file.c:226 #3: ffff888106a968b8 (&p->frag_sem){.+.+}-{4:4}, at: flush_write_buffer fs/configfs/file.c:205 [inline] #3: ffff888106a968b8 (&p->frag_sem){.+.+}-{4:4}, at: configfs_write_iter+0xa1/0x130 fs/configfs/file.c:229 #4: ffff888109fb9128 (&common->filesem){+.+.}-{4:4}, at: fsg_store_file+0x90/0x190 drivers/usb/gadget/function/storage_common.c:452 stack backtrace: CPU: 1 PID: 3254 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 Call Trace: dump_stack_lvl+0x72/0xc0 lib/dump_stack.c:106 __lock_acquire+0x6d7/0x2450 kernel/locking/lockdep.c:-1 lock_acquire+0xd8/0x240 kernel/locking/lockdep.c:5705 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1495 [inline] sb_start_write+0x34/0xd0 include/linux/fs.h:1570 mnt_want_write+0x11/0x40 fs/namespace.c:403 open_last_lookups fs/namei.c:3549 [inline] path_openat+0x1a6/0xd10 fs/namei.c:3790 do_filp_open+0x9e/0x120 fs/namei.c:3820 file_open_name fs/open.c:1347 [inline] filp_open+0xa8/0xd0 fs/open.c:1367 fsg_lun_open+0x2f/0x4d0 drivers/usb/gadget/function/storage_common.c:194 fsg_store_file+0xa2/0x190 drivers/usb/gadget/function/storage_common.c:455 flush_write_buffer fs/configfs/file.c:207 [inline] configfs_write_iter+0xe7/0x130 fs/configfs/file.c:229 call_write_iter include/linux/fs.h:1872 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x265/0x2e0 fs/read_write.c:584 ksys_write+0x63/0xd0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x6f/0xd9 RIP: 0033:0x7f4dc3491159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4dc32f2028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f4dc3718fa0 RCX: 00007f4dc3491159 RDX: 0000000000000005 RSI: 00002000000003c0 RDI: 0000000000000003 RBP: 00007f4dc352806b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4dc3719038 R14: 00007f4dc3718fa0 R15: 00007fff34750528 mass_storage.0/lun.0: unable to open backing file: file0