ci starts bisection 2024-02-12 22:26:40.594990751 +0000 UTC m=+272945.263539340 bisecting cause commit starting from ae00c445390b349e070a64dc62f08aa878db7248 building syzkaller on 77b23aa147a898d1e1912a5f01e6716bbdc3a59e ensuring issue is reproducible on original commit ae00c445390b349e070a64dc62f08aa878db7248 testing commit ae00c445390b349e070a64dc62f08aa878db7248 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2e7d5cb5b151acbdb9881d1bb7aa0116c10876f4aa85c8159380f3a0e19457b5 all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ae00c445390b349e070a64dc62f08aa878db7248 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7997482f7f4daa8fa4e29c0f8d42fe5bf20daad7893539d018595d4191d4138f all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, 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=7988 leaves diff=2020 split chunks (needed=false): <2020> split chunk #0 of len 2020 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ae00c445390b349e070a64dc62f08aa878db7248 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2d94cce68498ceb88860be37d814b5f0a5287677935c9aaf118426a6c778612d all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ae00c445390b349e070a64dc62f08aa878db7248 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4241e0a09d1451f969edc847f82917ee0d4936caebd9d7676d7354ff92cc608c all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit ae00c445390b349e070a64dc62f08aa878db7248 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 594b3895c6cb6bc8569a92ca49ca3fd2654da3a0c853fb32ca3017846e51e16a all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit ae00c445390b349e070a64dc62f08aa878db7248 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09ede5731eed5b34ea40ec6a74ef534a957af719568faf4461ee573393e95355 all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit ae00c445390b349e070a64dc62f08aa878db7248 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5851b1b7b49e030dac156f87adcc8f3ccc218159fdec871ada4430b293ee03a4 all runs: OK false negative chance: 0.000 minimized to 404 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_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_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_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 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 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_AMD_PSTATE 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_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC] disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.7 v6.6 v6.5 v6.3 v6.1 v5.19 v5.17 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 30 release tags testing release v6.7 testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b4cd4987d33df5ddcd2390440d38cafa83dcc5e511293c25109bb2e28bfaa64 all runs: OK false negative chance: 0.000 # git bisect start ae00c445390b349e070a64dc62f08aa878db7248 0dd3ee31125508cd67f7e7172247f05b7fd1753a Bisecting: 10271 revisions left to test after this (roughly 13 steps) [5aa1c96e8ef347430e7a7c898f290425d1b568ef] Merge branch 'master' into mm-hotfixes-stable testing commit 5aa1c96e8ef347430e7a7c898f290425d1b568ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 52d427b1f982ce81cd9b2f61fda3330445f5c03052f6663b2b233755e378030b all runs: OK false negative chance: 0.000 # git bisect good 5aa1c96e8ef347430e7a7c898f290425d1b568ef Bisecting: 5195 revisions left to test after this (roughly 12 steps) [4515dce0d1ead9d31b81b3c5e423321e1bcbff18] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git testing commit 4515dce0d1ead9d31b81b3c5e423321e1bcbff18 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1e90c3d6a5a92300ca8ec803ed6110356bae04dc2542fb4fed35ae4f49a1ebe5 all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] # git bisect bad 4515dce0d1ead9d31b81b3c5e423321e1bcbff18 Bisecting: 2532 revisions left to test after this (roughly 11 steps) [24fdd5189914b36102cb51626a890a2d84501993] Merge tag 'loongarch-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson testing commit 24fdd5189914b36102cb51626a890a2d84501993 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5cb5fba493d3cab39a1337bef296bb8135415213b7211ca2ab266bfed1220e02 all runs: OK false negative chance: 0.000 # git bisect good 24fdd5189914b36102cb51626a890a2d84501993 Bisecting: 1255 revisions left to test after this (roughly 10 steps) [809be620dc070c02a6e0daee0dcb0479c6296891] Merge tag 'usb-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb testing commit 809be620dc070c02a6e0daee0dcb0479c6296891 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8ab5be4431629a0c9b31390268a0deaf963f922caaee81eee5b3d08948ec45c7 all runs: OK false negative chance: 0.000 # git bisect good 809be620dc070c02a6e0daee0dcb0479c6296891 Bisecting: 659 revisions left to test after this (roughly 9 steps) [965c587a265e73e91ea5eda6f9b30ea59389cf65] Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd.git testing commit 965c587a265e73e91ea5eda6f9b30ea59389cf65 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d0cecfb5f1687ed5b89c0a93e9e16db7338b538a6d97555e3a8be4cf31882cfb all runs: OK false negative chance: 0.000 # git bisect good 965c587a265e73e91ea5eda6f9b30ea59389cf65 Bisecting: 329 revisions left to test after this (roughly 8 steps) [579a90ce2e8e1dee0fc3bcce9a29e8b5c3fcf2f7] Merge branch 'mm-nonmm-unstable' into mm-everything testing commit 579a90ce2e8e1dee0fc3bcce9a29e8b5c3fcf2f7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b71f00f5218b534294c2620022bcd343dcda2e7d6593377c3e28d0f5c28ac885 all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] # git bisect bad 579a90ce2e8e1dee0fc3bcce9a29e8b5c3fcf2f7 Bisecting: 164 revisions left to test after this (roughly 7 steps) [ff3d0c8a6c2b1969640c9e02bcf1a1dd6ad98421] selftests/mm: map_hugetlb: conform test to TAP format output testing commit ff3d0c8a6c2b1969640c9e02bcf1a1dd6ad98421 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3ee66a84e69763c24753e467844080e5c7aae9cfd1256ca95d1911581006e9d0 all runs: OK false negative chance: 0.000 # git bisect good ff3d0c8a6c2b1969640c9e02bcf1a1dd6ad98421 Bisecting: 82 revisions left to test after this (roughly 6 steps) [000dfeb500a3d0efb9472bb761f1613b7868e844] introduce cpu_dcache_is_aliasing() across all architectures testing commit 000dfeb500a3d0efb9472bb761f1613b7868e844 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 19723eb36241606e7285e30dcc0a092570b9dfa07beae5210f8256fbdc113478 all runs: OK false negative chance: 0.000 # git bisect good 000dfeb500a3d0efb9472bb761f1613b7868e844 Bisecting: 41 revisions left to test after this (roughly 5 steps) [f26de17f4d6882af0fe20615ea147fc77849c185] Makefile: drop warn-stack-size plugin opt testing commit f26de17f4d6882af0fe20615ea147fc77849c185 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab8e682ddfe8869876ba6119a9b55aa5cd29807515280298fd009eb5cf75e4cf all runs: OK false negative chance: 0.000 # git bisect good f26de17f4d6882af0fe20615ea147fc77849c185 Bisecting: 20 revisions left to test after this (roughly 4 steps) [380bbec23c9bb930442eafea2c958f71b3afe094] fat: Fix uninitialized field in nostale filehandles testing commit 380bbec23c9bb930442eafea2c958f71b3afe094 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 47618802ca97768d374c026e6d0d147865a12195de90c26651b2d9afe75a0795 all runs: OK false negative chance: 0.000 # git bisect good 380bbec23c9bb930442eafea2c958f71b3afe094 Bisecting: 10 revisions left to test after this (roughly 3 steps) [b28bad14adfed4eb922ff01f193f045102a6c74a] selftests/mm: log a consistent test name for check_compaction testing commit b28bad14adfed4eb922ff01f193f045102a6c74a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 916978f637dc9350bdec5b549454eda09598e933a41456a472dcf9268ed5bb8e all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] # git bisect bad b28bad14adfed4eb922ff01f193f045102a6c74a Bisecting: 4 revisions left to test after this (roughly 2 steps) [a9ef13a8fae49733cd1b8f311a3243814e125e03] virtio: cleanup alloc_dax() error handling testing commit a9ef13a8fae49733cd1b8f311a3243814e125e03 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a8079020be653a1f2020992cf94ac2b30d2326802b4fe8a7cfcbc1621ebb6ac all runs: OK false negative chance: 0.000 # git bisect good a9ef13a8fae49733cd1b8f311a3243814e125e03 Bisecting: 2 revisions left to test after this (roughly 1 step) [231c1aaf288bf7d92670c83a16696c15b1ebc581] userfaultfd: protect mmap_changing with rw_sem in userfaulfd_ctx testing commit 231c1aaf288bf7d92670c83a16696c15b1ebc581 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3b6eef58d0ba0d3482406201f8a988e55c5a4941ed914fc60b70ffa1cc46e769 all runs: OK false negative chance: 0.000 # git bisect good 231c1aaf288bf7d92670c83a16696c15b1ebc581 Bisecting: 0 revisions left to test after this (roughly 1 step) [9b57157e485cecba1929209388d6c7467b679533] selftests/mm: log skipped compaction test as a skip testing commit 9b57157e485cecba1929209388d6c7467b679533 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8c4edcf99861ae0cee85c5d97549352411643ca3e9587644beaf51f229bad3df all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] # git bisect bad 9b57157e485cecba1929209388d6c7467b679533 Bisecting: 0 revisions left to test after this (roughly 0 steps) [31d97016c80a83daa4c938014c81282810a14773] userfaultfd: use per-vma locks in userfaultfd operations testing commit 31d97016c80a83daa4c938014c81282810a14773 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e4ca43ca1ed4eb2db36c2017fd37e1837e2f8384ae43c9ea5980ec61b1abe609 all runs: crashed: WARNING in move_pages representative crash: WARNING in move_pages, types: [WARNING] # git bisect bad 31d97016c80a83daa4c938014c81282810a14773 31d97016c80a83daa4c938014c81282810a14773 is the first bad commit commit 31d97016c80a83daa4c938014c81282810a14773 Author: Lokesh Gidra Date: Thu Feb 8 13:22:04 2024 -0800 userfaultfd: use per-vma locks in userfaultfd operations All userfaultfd operations, except write-protect, opportunistically use per-vma locks to lock vmas. On failure, attempt again inside mmap_lock critical section. Write-protect operation requires mmap_lock as it iterates over multiple vmas. Link: https://lkml.kernel.org/r/20240208212204.2043140-4-lokeshgidra@google.com Signed-off-by: Lokesh Gidra Cc: Andrea Arcangeli Cc: Axel Rasmussen Cc: Brian Geffon Cc: David Hildenbrand Cc: Jann Horn Cc: Kalesh Singh Cc: Liam R. Howlett Cc: Matthew Wilcox (Oracle) Cc: Mike Rapoport (IBM) Cc: Nicolas Geoffray Cc: Peter Xu Cc: Suren Baghdasaryan Cc: Tim Murray Signed-off-by: Andrew Morton fs/userfaultfd.c | 13 +- include/linux/userfaultfd_k.h | 5 +- mm/userfaultfd.c | 356 ++++++++++++++++++++++++++++++++---------- 3 files changed, 275 insertions(+), 99 deletions(-) accumulated error probability: 0.00 culprit signature: e4ca43ca1ed4eb2db36c2017fd37e1837e2f8384ae43c9ea5980ec61b1abe609 parent signature: 3b6eef58d0ba0d3482406201f8a988e55c5a4941ed914fc60b70ffa1cc46e769 revisions tested: 23, total time: 10h42m22.910526582s (build: 5h49m12.776236738s, test: 4h4m23.790759293s) first bad commit: 31d97016c80a83daa4c938014c81282810a14773 userfaultfd: use per-vma locks in userfaultfd operations recipients (to): ["akpm@linux-foundation.org" "akpm@linux-foundation.org" "linux-mm@kvack.org" "lokeshgidra@google.com"] recipients (cc): ["axelrasmussen@google.com" "brauner@kernel.org" "linux-fsdevel@vger.kernel.org" "linux-kernel@vger.kernel.org" "peterx@redhat.com" "rppt@kernel.org" "usama.anjum@collabora.com" "viro@zeniv.linux.org.uk"] crash: WARNING in move_pages ------------[ cut here ]------------ WARNING: CPU: 0 PID: 2796 at mm/userfaultfd.c:1706 move_pages+0x2b4/0x470 mm/userfaultfd.c:1706 Modules linked in: CPU: 0 PID: 2796 Comm: syz-executor.0 Not tainted 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:move_pages+0x2b4/0x470 mm/userfaultfd.c:1706 Code: 44 24 10 4c 3b 78 08 76 2c 31 db 45 31 ff e9 af fe ff ff 90 0f 0b 90 4d 85 ff 0f 8e 53 ff ff ff 90 0f 0b 90 e9 56 ff ff ff 90 <0f> 0b 90 45 31 ff e9 48 fe ff ff 48 89 df 48 8b 74 24 08 48 8b 54 RSP: 0018:ffffc900013afd50 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 3eb26d79c4509b53 RSI: ffffffff82ead27e RDI: ffffffff82f0ae32 RBP: ffffffff8145cb92 R08: 0000000000000000 R09: ffff88810c3a51c0 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000200e2000 R13: ffff8881117be040 R14: 0000000020fff000 R15: 0000000000000000 FS: 00007f9a2cfce6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555555cbda8 CR3: 00000001118b4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: userfaultfd_move fs/userfaultfd.c:2008 [inline] userfaultfd_ioctl+0x3a0/0x2400 fs/userfaultfd.c:2126 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0x6e/0xc0 fs/ioctl.c:857 do_syscall_64+0xe6/0x230 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f9a2d44cda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9a2cfce0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9a2d57af80 RCX: 00007f9a2d44cda9 RDX: 0000000020000000 RSI: 00000000c028aa05 RDI: 0000000000000003 RBP: 00007f9a2d49947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f9a2d57af80 R15: 00007ffe86297568