ci starts bisection 2024-03-05 09:54:12.403430336 +0000 UTC m=+29554.290673754 bisecting fixing commit since b57b17e88bf58860dad312d08db7d6708ee6d06d building syzkaller on 6d6dbf8ab21a52df701946afac2a86f93a88fdc8 ensuring issue is reproducible on original commit b57b17e88bf58860dad312d08db7d6708ee6d06d testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 195afac713b84fe36a5f325c85c39314f8c9d5cc0bf4e3683899b8fabf465286 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7f7e19fd3655a39dd5746242788c2e66faa92297f205360243c4686cc6cd8fb5 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3937 full=7657 leaves diff=2019 split chunks (needed=false): <2019> split chunk #0 of len 2019 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6eee3373f098840be1c6742c62b8de0fec9d1a8c30a404758794ff09ba8cf742 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dd9597a95843e4d8c3346a27f41c5c351eef05839ac20544a8f56096e339728b all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78806419faf653625f8448103ee3726a70e13d6804e95c9e45326a7faaba3547 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8a4704aaddd22efb731ff622f790fe59cb3ea737ce0e02d5ae720df3c97ab4dc all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b12b2a8995a2809bc69b6d9c3099f1aab3f43f7ef20b6467833cc5df8b079b35 all runs: OK false negative chance: 0.000 minimized to 403 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DVB_CORE EXTCON FB GPIOLIB HID_ZEROPLUS I2C_MUX IIO IOMMUFD IRQ_REMAP KVM KVM_INTEL LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_VIPERBOARD PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CONFIGFS USB_CONFIGFS_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_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GPIO_VBUS USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_MV_U3D USB_MV_UDC USB_NET2272 USB_NET2272_DMA USB_NET2280 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_RNDIS_WLAN USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VDPA_USER VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK 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_CMDLINE 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_NOMODESET VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_PURELIFI WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK X86_X2APIC X86_X32_ABI XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC] disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing current HEAD 90d35da658da8cff0d4ecbb5113f5fac9d00eb72 testing commit 90d35da658da8cff0d4ecbb5113f5fac9d00eb72 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 863f31c2af6da8426ed182ecb64ad9d4ba91930372c2597568b379cb9f420507 all runs: OK false negative chance: 0.000 # git bisect start 90d35da658da8cff0d4ecbb5113f5fac9d00eb72 b57b17e88bf58860dad312d08db7d6708ee6d06d Bisecting: 9111 revisions left to test after this (roughly 13 steps) [ba5afb9a84df2e6b26a1b6389b98849cd16ea757] fs: rework listmount() implementation determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit ba5afb9a84df2e6b26a1b6389b98849cd16ea757 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b305c38b75305470da602bed73b1ddd361466719c119b74209324567a63f2f35 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] # git bisect good ba5afb9a84df2e6b26a1b6389b98849cd16ea757 Bisecting: 4644 revisions left to test after this (roughly 12 steps) [e1aa9df440186af73a9e690244eb49cbc99f36ac] Merge tag 'pci-v6.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit e1aa9df440186af73a9e690244eb49cbc99f36ac gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e1e731280842aab643981b0f5b00aa7f3aa8948576d0dd9f90fb77f0b8f14368 all runs: OK false negative chance: 0.000 # git bisect bad e1aa9df440186af73a9e690244eb49cbc99f36ac Bisecting: 2225 revisions left to test after this (roughly 11 steps) [92242716ee92d2aa3c38c736b53d8910d443566d] Merge tag 'drm-habanalabs-next-2023-12-19' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into drm-next determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 92242716ee92d2aa3c38c736b53d8910d443566d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f9b2f74381739d0be73f2da41db5d0a45b68e2248309d23108a4180111442cc6 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] # git bisect good 92242716ee92d2aa3c38c736b53d8910d443566d Bisecting: 1009 revisions left to test after this (roughly 10 steps) [61da593f4458f25c59f65cfd9ba1bda570db5db7] Merge tag 'media/v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 61da593f4458f25c59f65cfd9ba1bda570db5db7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a2b987c39588582740df06e5c988aa59424e6cf93affedd451e99152294fb005 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] # git bisect good 61da593f4458f25c59f65cfd9ba1bda570db5db7 Bisecting: 442 revisions left to test after this (roughly 9 steps) [09d1c6a80f2cf94c6e70be919203473d4ab8e26c] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm determine whether the revision contains the guilty commit revision ba5afb9a84df2e6b26a1b6389b98849cd16ea757 crashed and is reachable testing commit 09d1c6a80f2cf94c6e70be919203473d4ab8e26c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f2a8974207188f81467c6d7606bec8a2aa778168831a9694dade0a70c6c33cb7 all runs: OK false negative chance: 0.000 # git bisect bad 09d1c6a80f2cf94c6e70be919203473d4ab8e26c Bisecting: 305 revisions left to test after this (roughly 8 steps) [6cff79f4b90a42d73f039564f09fa5d59ec3d8ab] Merge tag 'uml-for-linus-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux determine whether the revision contains the guilty commit revision 92242716ee92d2aa3c38c736b53d8910d443566d crashed and is reachable testing commit 6cff79f4b90a42d73f039564f09fa5d59ec3d8ab gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aff7a58f54cc2e2af5334d05adbbb6f37dd345ee9a5b4384d4239a3b24f737f8 all runs: OK false negative chance: 0.000 # git bisect bad 6cff79f4b90a42d73f039564f09fa5d59ec3d8ab Bisecting: 120 revisions left to test after this (roughly 7 steps) [42bff4d0f9b9c8b669c5cef25c5116f41eb45c6b] Merge tag 'pwm/for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 42bff4d0f9b9c8b669c5cef25c5116f41eb45c6b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b4343575def0ab41a9dcd2a5ab6b6c71e15ff406acd0ea217e5949bf810c6709 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] # git bisect good 42bff4d0f9b9c8b669c5cef25c5116f41eb45c6b Bisecting: 61 revisions left to test after this (roughly 6 steps) [1acc24b300bfa8b2f03daabbba67db600fd38e08] Merge tag 'pull-simple_recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs determine whether the revision contains the guilty commit revision 92242716ee92d2aa3c38c736b53d8910d443566d crashed and is reachable testing commit 1acc24b300bfa8b2f03daabbba67db600fd38e08 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 61d5c27433ba01c01762d0f553011691bfe7b284d5ece1322b5db4198dbf1794 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] # git bisect good 1acc24b300bfa8b2f03daabbba67db600fd38e08 Bisecting: 32 revisions left to test after this (roughly 5 steps) [eebe75827b73b0a61e84acd2033ce304a3166d70] Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux determine whether the revision contains the guilty commit revision 61da593f4458f25c59f65cfd9ba1bda570db5db7 crashed and is reachable testing commit eebe75827b73b0a61e84acd2033ce304a3166d70 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ca5db1407d74f8146ef81743f06cc3b5cb7e13f25e5cf115e61c24b53079a37f all runs: OK false negative chance: 0.000 # git bisect bad eebe75827b73b0a61e84acd2033ce304a3166d70 Bisecting: 14 revisions left to test after this (roughly 4 steps) [11684134140bb708b6e6de969a060535630b1b53] mm/memory_hotplug: fix memmap_on_memory sysfs value retrieval determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 11684134140bb708b6e6de969a060535630b1b53 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 87f7f5d34d42f291cdb9a109a610fa4ea6d228453172bc7fc4f5224eb89d4341 all runs: OK false negative chance: 0.000 # git bisect bad 11684134140bb708b6e6de969a060535630b1b53 Bisecting: 6 revisions left to test after this (roughly 3 steps) [4cccb6221cae6d020270606b9e52b1678fc8b71a] fs/proc/task_mmu: move mmu notification mechanism inside mm lock determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 4cccb6221cae6d020270606b9e52b1678fc8b71a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5afe04eb89dc937d973601ed866316d50ceaada52cb134b01888a219a768f549 all runs: OK false negative chance: 0.000 # git bisect bad 4cccb6221cae6d020270606b9e52b1678fc8b71a Bisecting: 3 revisions left to test after this (roughly 2 steps) [aaa2c9a97c22af5bf011f6dd8e0538219b45af88] lib/Kconfig.debug: disable CONFIG_DEBUG_INFO_BTF for Hexagon determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit aaa2c9a97c22af5bf011f6dd8e0538219b45af88 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 002be7b2a39ebcd45807286541eff2f6a1378513e14bbb19af6d20864c7b19ef all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] # git bisect good aaa2c9a97c22af5bf011f6dd8e0538219b45af88 Bisecting: 1 revision left to test after this (roughly 1 step) [efbd6398353315b7018e6943e41fee9ec35e875f] scripts/decode_stacktrace.sh: optionally use LLVM utilities determine whether the revision contains the guilty commit revision aaa2c9a97c22af5bf011f6dd8e0538219b45af88 crashed and is reachable testing commit efbd6398353315b7018e6943e41fee9ec35e875f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3db92c463b11217cf4d9e3e31508f481cb4919a97269be112212fbaf109b1d51 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] # git bisect good efbd6398353315b7018e6943e41fee9ec35e875f Bisecting: 0 revisions left to test after this (roughly 0 steps) [ea52f71598f3d0cfaaf53b7d837bee9919041351] mm: zswap: switch maintainers to recently active developers and reviewers determine whether the revision contains the guilty commit revision efbd6398353315b7018e6943e41fee9ec35e875f crashed and is reachable testing commit ea52f71598f3d0cfaaf53b7d837bee9919041351 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e1969a23b276cc2fa8324a073d460a4d49c4235a211055a835be4c4b36da4d92 all runs: crashed: WARNING in kvm_mmu_notifier_invalidate_range_start representative crash: WARNING in kvm_mmu_notifier_invalidate_range_start, types: [WARNING] # git bisect good ea52f71598f3d0cfaaf53b7d837bee9919041351 4cccb6221cae6d020270606b9e52b1678fc8b71a is the first bad commit commit 4cccb6221cae6d020270606b9e52b1678fc8b71a Author: Muhammad Usama Anjum Date: Tue Jan 9 16:24:42 2024 +0500 fs/proc/task_mmu: move mmu notification mechanism inside mm lock Move mmu notification mechanism inside mm lock to prevent race condition in other components which depend on it. The notifier will invalidate memory range. Depending upon the number of iterations, different memory ranges would be invalidated. The following warning would be removed by this patch: WARNING: CPU: 0 PID: 5067 at arch/x86/kvm/../../../virt/kvm/kvm_main.c:734 kvm_mmu_notifier_change_pte+0x860/0x960 arch/x86/kvm/../../../virt/kvm/kvm_main.c:734 There is no behavioural and performance change with this patch when there is no component registered with the mmu notifier. [akpm@linux-foundation.org: narrow the scope of `range', per Sean] Link: https://lkml.kernel.org/r/20240109112445.590736-1-usama.anjum@collabora.com Fixes: 52526ca7fdb9 ("fs/proc/task_mmu: implement IOCTL to get and optionally clear info about PTEs") Signed-off-by: Muhammad Usama Anjum Reported-by: syzbot+81227d2bd69e9dedb802@syzkaller.appspotmail.com Link: https://lore.kernel.org/all/000000000000f6d051060c6785bc@google.com/ Reviewed-by: Sean Christopherson Cc: Andrei Vagin Cc: Arnd Bergmann Cc: David Hildenbrand Cc: Hugh Dickins Cc: Kefeng Wang Cc: Liam R. Howlett Cc: Michał Mirosław Cc: Peter Xu Cc: Ryan Roberts Cc: Stephen Rothwell Cc: Suren Baghdasaryan Cc: Signed-off-by: Andrew Morton fs/proc/task_mmu.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) accumulated error probability: 0.00 culprit signature: 5afe04eb89dc937d973601ed866316d50ceaada52cb134b01888a219a768f549 parent signature: e1969a23b276cc2fa8324a073d460a4d49c4235a211055a835be4c4b36da4d92 revisions tested: 22, total time: 4h3m58.123289911s (build: 1h52m40.768892955s, test: 1h57m38.393335858s) first good commit: 4cccb6221cae6d020270606b9e52b1678fc8b71a fs/proc/task_mmu: move mmu notification mechanism inside mm lock recipients (to): ["akpm@linux-foundation.org" "seanjc@google.com" "usama.anjum@collabora.com"] recipients (cc): []