ci starts bisection 2023-09-05 22:38:32.589353646 +0000 UTC m=+123843.346556247 bisecting cause commit starting from 3f86ed6ec0b390c033eae7f9c487a3fea268e027 building syzkaller on 8bc9053e88dacf57f5ce550da040d31895eb9626 ensuring issue is reproducible on original commit 3f86ed6ec0b390c033eae7f9c487a3fea268e027 testing commit 3f86ed6ec0b390c033eae7f9c487a3fea268e027 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d8a6aab52597c6b53af85e940e1d138243b713734d2b05a91b0b2398cc318d14 all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 3f86ed6ec0b390c033eae7f9c487a3fea268e027 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c2adac2e2e34aa54dc706f0f74f8289ad3996423b60491f7c0a86d95c4365475 all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3876 full=7685 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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 3f86ed6ec0b390c033eae7f9c487a3fea268e027 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09edb5b7f718e934e18ee8c3f7a879b3ffc060ef9bfac6fb3be5c0811227f502 all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 3f86ed6ec0b390c033eae7f9c487a3fea268e027 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d1ba62bcdbc16d1ef61bdd5966cf53e2725301120e3c61859c769a64210f7679 all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 3f86ed6ec0b390c033eae7f9c487a3fea268e027 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3923860d006c044cc6a4acf6145cba5348a5838e1e64c53da99c02fc97a2fd77 all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 3f86ed6ec0b390c033eae7f9c487a3fea268e027 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1d9a2b8c1b6b6f788df9c5ccc05ac8c2ecb68eafa01caef2ffa3340b986bffdd all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 3f86ed6ec0b390c033eae7f9c487a3fea268e027 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2d1b254016574423170726438451d464ede0f6015ce9aa7c2e7b1a129b4e3ddc all runs: OK false negative chance: 0.000 minimized to 808 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 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 DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON FB GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IOMMUFD IP_SCTP IRQ_REMAP KVM KVM_INTEL L2TP LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_RETU MFD_VIPERBOARD MMC MTD MTD_UBI NETFILTER_ADVANCED NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_CONNTRACK_SNMP NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_POOL PAGE_REPORTING PAHOLE_HAS_BTF_TAG PAHOLE_HAS_LANG_EXCLUDE PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_4 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_SI470X RADIO_SI4713 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SECURITY_SMACK_NETFILTER SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 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TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TTPCI_EEPROM TTY_PRINTK TUN TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR 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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 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USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_REALTEK USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_ASYNC V4L2_FWNODE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VDPA_USER VETH VFIO VFIO_GROUP 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_CAMERA_SENSOR 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 VXLAN 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 XARRAY_MULTI 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 ZBUD ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed picked [%!d(string=v6.5) %!d(string=v6.4) %!d(string=v6.3) %!d(string=v6.1) %!d(string=v5.19) %!d(string=v5.17) %!d(string=v5.15) %!d(string=v5.13) %!d(string=v5.10) %!d(string=v5.7) %!d(string=v5.4) %!d(string=v5.1) %!d(string=v4.19)] out of %!d(MISSING) release tags testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e174b49e572fb6bdc9e71e8f49ec455381f19ba9e1f64484142d7c2acd962e48 all runs: OK false negative chance: 0.000 # git bisect start 3f86ed6ec0b390c033eae7f9c487a3fea268e027 2dde18cd1d8fac735875f2e4987f11817cc0bc2c Bisecting: 5327 revisions left to test after this (roughly 13 steps) [461f35f014466c4e26dca6be0f431f57297df3f2] Merge tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm testing commit 461f35f014466c4e26dca6be0f431f57297df3f2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab5e4dca38c3f52f7c708421a036e4b28b39041368b1fd3ae2f29806c26da14e all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] # git bisect bad 461f35f014466c4e26dca6be0f431f57297df3f2 Bisecting: 2408 revisions left to test after this (roughly 12 steps) [bd6c11bc43c496cddfc6cf603b5d45365606dbd5] Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit bd6c11bc43c496cddfc6cf603b5d45365606dbd5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e4b3d77f7ed7376c3faf93768d67cc95b6c40a1b929a2d16d7552ccf066cfcc3 all runs: OK false negative chance: 0.000 # git bisect good bd6c11bc43c496cddfc6cf603b5d45365606dbd5 Bisecting: 1205 revisions left to test after this (roughly 10 steps) [ef35c7ba60410926d0501e45aad299656a83826c] Revert "Revert "drm/amdgpu/display: change pipe policy for DCN 2.0"" testing commit ef35c7ba60410926d0501e45aad299656a83826c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c08efbd960c7f496885d38480122f49ecde91ab7b89aa6f53140d0c7cdd80c4f all runs: OK false negative chance: 0.000 # git bisect good ef35c7ba60410926d0501e45aad299656a83826c Bisecting: 580 revisions left to test after this (roughly 9 steps) [d68b4b6f307d155475cce541f2aee938032ed22e] Merge tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit d68b4b6f307d155475cce541f2aee938032ed22e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b2c85fd27bcd2fa3af80f561aa334f3a995d356c152661ea95606b2edb2bb557 all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] # git bisect bad d68b4b6f307d155475cce541f2aee938032ed22e Bisecting: 312 revisions left to test after this (roughly 8 steps) [7545e2f20aebf4da413be00384c4245eda5beb4d] mm/compaction: skip page block marked skip in isolate_migratepages_block testing commit 7545e2f20aebf4da413be00384c4245eda5beb4d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 7545e2f20aebf4da413be00384c4245eda5beb4d: mm/memory.c:5460:34: error: call to undeclared function 'vma_is_tcp'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] # git bisect skip 7545e2f20aebf4da413be00384c4245eda5beb4d Bisecting: 311 revisions left to test after this (roughly 8 steps) [0aa8ea3c5d353d5f0aa1e607f8dc5f43bf6cdf05] mm/compaction: correct comment of fast_find_migrateblock in isolate_migratepages testing commit 0aa8ea3c5d353d5f0aa1e607f8dc5f43bf6cdf05 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 0aa8ea3c5d353d5f0aa1e607f8dc5f43bf6cdf05: mm/memory.c:5460:34: error: call to undeclared function 'vma_is_tcp'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] # git bisect skip 0aa8ea3c5d353d5f0aa1e607f8dc5f43bf6cdf05 Bisecting: 311 revisions left to test after this (roughly 8 steps) [c1dc69e6ce65d95e3d4d080868c3007f1a6fc4fe] mm/page_alloc: remove unneeded variable base testing commit c1dc69e6ce65d95e3d4d080868c3007f1a6fc4fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building c1dc69e6ce65d95e3d4d080868c3007f1a6fc4fe: mm/memory.c:5460:34: error: call to undeclared function 'vma_is_tcp'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] # git bisect skip c1dc69e6ce65d95e3d4d080868c3007f1a6fc4fe Bisecting: 311 revisions left to test after this (roughly 8 steps) [86f35f69db8e7d169c36472a349507ab0a461f49] rmap: add folio_add_file_rmap_range() testing commit 86f35f69db8e7d169c36472a349507ab0a461f49 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 813eaa3c1b0888580045801a7f45e1e22e39116700a97d70b2c23ca986642f98 all runs: OK false negative chance: 0.000 # git bisect good 86f35f69db8e7d169c36472a349507ab0a461f49 Bisecting: 79 revisions left to test after this (roughly 6 steps) [543cd4c5e78b15def9d7e8626d7592cb3097f75e] x86/crash: optimize CPU changes testing commit 543cd4c5e78b15def9d7e8626d7592cb3097f75e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c71e1ef9339e023cd3acd753cf24c723fbfaccb1fbdbb71178be312e2366daa9 all runs: OK false negative chance: 0.000 # git bisect good 543cd4c5e78b15def9d7e8626d7592cb3097f75e Bisecting: 38 revisions left to test after this (roughly 5 steps) [eaf9f4649cf03ba3442712497a30686380ba7c23] Merge tag 'csky-for-linus-6.6' of https://github.com/c-sky/csky-linux testing commit eaf9f4649cf03ba3442712497a30686380ba7c23 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 810c706ae2ea558e91603590e4b1c057b226f8af9a01f31b5eec9619f95c5190 all runs: OK false negative chance: 0.000 # git bisect good eaf9f4649cf03ba3442712497a30686380ba7c23 Bisecting: 19 revisions left to test after this (roughly 4 steps) [01a7eb3e20994701700631ec30462087c4ecf142] mm: fix clean_record_shared_mapping_range kernel-doc testing commit 01a7eb3e20994701700631ec30462087c4ecf142 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 982de59479baa888fb82ba463a1bbba8a3cedfba53f8b2c8b1eaf16ca24eefde all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] # git bisect bad 01a7eb3e20994701700631ec30462087c4ecf142 Bisecting: 8 revisions left to test after this (roughly 3 steps) [3d2c908768877714a354ee6d7bf93e801400d5e2] mm/swap: inline folio_set_swap_entry() and folio_swap_entry() testing commit 3d2c908768877714a354ee6d7bf93e801400d5e2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee2ca88dc17b66193c54de949cb1fa8d29af7cd9424034d3d5d7fc66a31b569c all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] # git bisect bad 3d2c908768877714a354ee6d7bf93e801400d5e2 Bisecting: 4 revisions left to test after this (roughly 2 steps) [004a9a38e20da6eb88fbfb7eeff0f3dd8a01776a] mm: userfaultfd: remove stale comment about core dump locking testing commit 004a9a38e20da6eb88fbfb7eeff0f3dd8a01776a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82755ab31334abab9816366ec9376312b1b5f2939da6e9e37f6a6ce75f47d1ad all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] # git bisect bad 004a9a38e20da6eb88fbfb7eeff0f3dd8a01776a Bisecting: 1 revision left to test after this (roughly 1 step) [5003a2bdf6880dc9c301f555bece1154081158fe] mm: call update_mmu_cache_range() in more page fault handling paths testing commit 5003a2bdf6880dc9c301f555bece1154081158fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 55dac86433e5928605861377db6a001872c0f4730dfab20d87e5c41556818f1e all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] # git bisect bad 5003a2bdf6880dc9c301f555bece1154081158fe Bisecting: 1 revision left to test after this (roughly 1 step) [3bd786f76de2e01745f462844fd1a206052ee8b8] mm: convert do_set_pte() to set_pte_range() testing commit 3bd786f76de2e01745f462844fd1a206052ee8b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 04a634750dd11b967be4730fcc12659783a713376116e6c3a479577f3626d89f all runs: OK false negative chance: 0.000 # git bisect good 3bd786f76de2e01745f462844fd1a206052ee8b8 Bisecting: 0 revisions left to test after this (roughly 0 steps) [617c28ecab22d98a3809370eb6cb50fa24b7bfe1] filemap: batch PTE mappings testing commit 617c28ecab22d98a3809370eb6cb50fa24b7bfe1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 67126e14bca8bb2eb9b95cfdee9ff5c4fbb6b4079a9a52440629c6107207b0e2 all runs: crashed: BUG: Bad page map representative crash: BUG: Bad page map, types: [UNKNOWN] # git bisect bad 617c28ecab22d98a3809370eb6cb50fa24b7bfe1 617c28ecab22d98a3809370eb6cb50fa24b7bfe1 is the first bad commit commit 617c28ecab22d98a3809370eb6cb50fa24b7bfe1 Author: Yin Fengwei Date: Wed Aug 2 16:14:05 2023 +0100 filemap: batch PTE mappings Call set_pte_range() once per contiguous range of the folio instead of once per page. This batches the updates to mm counters and the rmap. With a will-it-scale.page_fault3 like app (change file write fault testing to read fault testing. Trying to upstream it to will-it-scale at [1]) got 15% performance gain on a 48C/96T Cascade Lake test box with 96 processes running against xfs. Perf data collected before/after the change: 18.73%--page_add_file_rmap | --11.60%--__mod_lruvec_page_state | |--7.40%--__mod_memcg_lruvec_state | | | --5.58%--cgroup_rstat_updated | --2.53%--__mod_lruvec_state | --1.48%--__mod_node_page_state 9.93%--page_add_file_rmap_range | --2.67%--__mod_lruvec_page_state | |--1.95%--__mod_memcg_lruvec_state | | | --1.57%--cgroup_rstat_updated | --0.61%--__mod_lruvec_state | --0.54%--__mod_node_page_state The running time of __mode_lruvec_page_state() is reduced about 9%. [1]: https://github.com/antonblanchard/will-it-scale/pull/37 Link: https://lkml.kernel.org/r/20230802151406.3735276-38-willy@infradead.org Signed-off-by: Yin Fengwei Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton mm/filemap.c | 43 +++++++++++++++++++++++++++++-------------- 1 file changed, 29 insertions(+), 14 deletions(-) accumulated error probability: 0.00 culprit signature: 67126e14bca8bb2eb9b95cfdee9ff5c4fbb6b4079a9a52440629c6107207b0e2 parent signature: 04a634750dd11b967be4730fcc12659783a713376116e6c3a479577f3626d89f revisions tested: 21, total time: 6h52m39.249462571s (build: 3h47m22.030071879s, test: 2h45m14.121864651s) first bad commit: 617c28ecab22d98a3809370eb6cb50fa24b7bfe1 filemap: batch PTE mappings recipients (to): ["akpm@linux-foundation.org" "fengwei.yin@intel.com" "willy@infradead.org"] recipients (cc): [] crash: BUG: Bad page map XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791 XFS (loop0): Ending clean mount XFS (loop0): Quotacheck needed: Please wait. XFS (loop0): Quotacheck: Done. BUG: Bad page map in process syz-executor.0 pte:ffffee88f4120 pmd:113ef9067 page:ffffea00045dc2c0 refcount:9 mapcount:-1 mapping:ffff8881164b2110 index:0x3 pfn:0x11770b head:ffffea00045dc200 order:2 entire_mapcount:0 nr_pages_mapped:8388607 pincount:0 memcg:ffff88810bcae000 aops:xfs_address_space_operations ino:244a dentry name:"bus" flags: 0x17ff0000000816c(referenced|uptodate|lru|active|private|head|node=0|zone=2|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 017ff00000000000 ffffea00045dc201 ffffea00045dc2c8 dead000000000400 raw: 0000000000000000 0000000000000000 00000000fffffffe 0000000000000000 head: 017ff0000000816c ffffea0004583448 ffff88810c49f830 ffff8881164b2110 head: 0000000000000000 ffff88810d46f4e0 00000009ffffffff ffff88810bcae000 page dumped because: bad pte page_owner tracks the page as allocated page last allocated via order 2, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 3466, tgid 3465 (syz-executor.0), ts 43875236115, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x154/0x170 mm/page_alloc.c:1536 prep_new_page mm/page_alloc.c:1543 [inline] get_page_from_freelist+0x1727/0x1870 mm/page_alloc.c:3183 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4439 folio_alloc+0x13/0x30 mm/mempolicy.c:2308 filemap_alloc_folio+0x44/0x1a0 mm/filemap.c:979 ra_alloc_folio mm/readahead.c:481 [inline] page_cache_ra_order+0x12f/0x330 mm/readahead.c:537 do_sync_mmap_readahead+0x15f/0x2f0 filemap_fault+0x201/0x700 mm/filemap.c:3289 __do_fault+0x38/0x100 mm/memory.c:4218 do_read_fault mm/memory.c:4582 [inline] do_fault mm/memory.c:4719 [inline] do_pte_missing+0x148/0xcb0 mm/memory.c:3683 handle_pte_fault mm/memory.c:5010 [inline] __handle_mm_fault mm/memory.c:5150 [inline] handle_mm_fault+0x6b4/0xfd0 mm/memory.c:5315 faultin_page mm/gup.c:956 [inline] __get_user_pages+0x3c2/0x7a0 mm/gup.c:1239 __get_user_pages_locked mm/gup.c:1504 [inline] get_dump_page+0x87/0x110 mm/gup.c:2018 dump_user_range+0x5c/0x230 fs/coredump.c:913 elf_core_dump+0xf96/0x1000 fs/binfmt_elf.c:2142 do_coredump+0xa59/0xec0 fs/coredump.c:764 page_owner free stack trace missing addr:0000000020006000 vm_flags:000000d0 anon_vma:0000000000000000 mapping:ffff8881164b2110 index:5 file:bus fault:xfs_filemap_fault mmap:xfs_file_mmap read_folio:xfs_vm_read_folio CPU: 1 PID: 3466 Comm: syz-executor.0 Not tainted 6.5.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 print_bad_pte+0x202/0x240 mm/memory.c:535 zap_pte_range mm/memory.c:1457 [inline] zap_pmd_range mm/memory.c:1572 [inline] zap_pud_range mm/memory.c:1601 [inline] zap_p4d_range mm/memory.c:1622 [inline] unmap_page_range+0x825/0xf90 mm/memory.c:1643 unmap_vmas+0xa3/0x100 mm/memory.c:1730 exit_mmap+0x1c6/0x510 mm/mmap.c:3210 __mmput+0x3d/0x110 kernel/fork.c:1348 exit_mm+0xa9/0x110 kernel/exit.c:567 do_exit+0x242/0xa50 kernel/exit.c:861 do_group_exit+0x85/0xa0 kernel/exit.c:1024 get_signal+0x73f/0x7f0 kernel/signal.c:2881 arch_do_signal_or_restart+0x89/0x2b0 arch/x86/kernel/signal.c:308 exit_to_user_mode_loop+0x61/0xb0 kernel/entry/common.c:168 exit_to_user_mode_prepare+0x6c/0xc0 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x2b/0x1d0 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f81b6a7cae9 Code: Unable to access opcode bytes at 0x7f81b6a7cabf. RSP: 002b:00007f81b784b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffe5 RBX: 00007f81b6b9bf80 RCX: 00007f81b6a7cae9 RDX: 0000000000000002 RSI: 0000000020000300 RDI: 0000000000000007 RBP: 00007f81b6ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008800000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f81b6b9bf80 R15: 00007ffe585d1708 BUG: Bad page map in process syz-executor.0 pte:ffffee88f5120 pmd:113ef9067 page:ffffea00045dc280 refcount:9 mapcount:-1 mapping:ffff8881164b2110 index:0x2 pfn:0x11770a head:ffffea00045dc200 order:2 entire_mapcount:0 nr_pages_mapped:8388606 pincount:0 memcg:ffff88810bcae000 aops:xfs_address_space_operations ino:244a dentry name:"bus" flags: 0x17ff0000000816c(referenced|uptodate|lru|active|private|head|node=0|zone=2|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 017ff00000000000 ffffea00045dc201 ffffea00045dc290 ffffea00045dc290 raw: 0000000000000000 0000000000000000 00000000fffffffe 0000000000000000 head: 017ff0000000816c ffffea0004583448 ffff88810c49f830 ffff8881164b2110 head: 0000000000000000 ffff88810d46f4e0 00000009ffffffff ffff88810bcae000 page dumped because: bad pte page_owner tracks the page as allocated page last allocated via order 2, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 3466, tgid 3465 (syz-executor.0), ts 43875236115, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x154/0x170 mm/page_alloc.c:1536 prep_new_page mm/page_alloc.c:1543 [inline] get_page_from_freelist+0x1727/0x1870 mm/page_alloc.c:3183 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4439 folio_alloc+0x13/0x30 mm/mempolicy.c:2308 filemap_alloc_folio+0x44/0x1a0 mm/filemap.c:979 ra_alloc_folio mm/readahead.c:481 [inline] page_cache_ra_order+0x12f/0x330 mm/readahead.c:537 do_sync_mmap_readahead+0x15f/0x2f0 filemap_fault+0x201/0x700 mm/filemap.c:3289 __do_fault+0x38/0x100 mm/memory.c:4218 do_read_fault mm/memory.c:4582 [inline] do_fault mm/memory.c:4719 [inline] do_pte_missing+0x148/0xcb0 mm/memory.c:3683 handle_pte_fault mm/memory.c:5010 [inline] __handle_mm_fault mm/memory.c:5150 [inline] handle_mm_fault+0x6b4/0xfd0 mm/memory.c:5315 faultin_page mm/gup.c:956 [inline] __get_user_pages+0x3c2/0x7a0 mm/gup.c:1239 __get_user_pages_locked mm/gup.c:1504 [inline] get_dump_page+0x87/0x110 mm/gup.c:2018 dump_user_range+0x5c/0x230 fs/coredump.c:913 elf_core_dump+0xf96/0x1000 fs/binfmt_elf.c:2142 do_coredump+0xa59/0xec0 fs/coredump.c:764 page_owner free stack trace missing addr:0000000020007000 vm_flags:000000d0 anon_vma:0000000000000000 mapping:ffff8881164b2110 index:6 file:bus fault:xfs_filemap_fault mmap:xfs_file_mmap read_folio:xfs_vm_read_folio CPU: 0 PID: 3466 Comm: syz-executor.0 Tainted: G B 6.5.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 print_bad_pte+0x202/0x240 mm/memory.c:535 zap_pte_range mm/memory.c:1457 [inline] zap_pmd_range mm/memory.c:1572 [inline] zap_pud_range mm/memory.c:1601 [inline] zap_p4d_range mm/memory.c:1622 [inline] unmap_page_range+0x825/0xf90 mm/memory.c:1643 unmap_vmas+0xa3/0x100 mm/memory.c:1730 exit_mmap+0x1c6/0x510 mm/mmap.c:3210 __mmput+0x3d/0x110 kernel/fork.c:1348 exit_mm+0xa9/0x110 kernel/exit.c:567 do_exit+0x242/0xa50 kernel/exit.c:861 do_group_exit+0x85/0xa0 kernel/exit.c:1024 get_signal+0x73f/0x7f0 kernel/signal.c:2881 arch_do_signal_or_restart+0x89/0x2b0 arch/x86/kernel/signal.c:308 exit_to_user_mode_loop+0x61/0xb0 kernel/entry/common.c:168 exit_to_user_mode_prepare+0x6c/0xc0 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x2b/0x1d0 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f81b6a7cae9 Code: Unable to access opcode bytes at 0x7f81b6a7cabf. RSP: 002b:00007f81b784b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffe5 RBX: 00007f81b6b9bf80 RCX: 00007f81b6a7cae9 RDX: 0000000000000002 RSI: 0000000020000300 RDI: 0000000000000007 RBP: 00007f81b6ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008800000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f81b6b9bf80 R15: 00007ffe585d1708 BUG: Bad page map in process syz-executor.0 pte:ffffee88f6120 pmd:113ef9067 page:ffffea00045dc240 refcount:9 mapcount:-1 mapping:ffff8881164b2110 index:0x1 pfn:0x117709 head:ffffea00045dc200 order:2 entire_mapcount:0 nr_pages_mapped:8388605 pincount:0 memcg:ffff88810bcae000 aops:xfs_address_space_operations ino:244a dentry name:"bus" flags: 0x17ff0000000816c(referenced|uptodate|lru|active|private|head|node=0|zone=2|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 017ff00000000202 ffffea00045dc201 ffffea00045dc248 fffffffdffffffff raw: 0000000400000000 0000000000000000 00000000fffffffe 0000000000000000 head: 017ff0000000816c ffffea0004583448 ffff88810c49f830 ffff8881164b2110 head: 0000000000000000 ffff88810d46f4e0 00000009ffffffff ffff88810bcae000 page dumped because: bad pte page_owner tracks the page as allocated page last allocated via order 2, migratetype Movable, gfp_mask 0x152c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 3466, tgid 3465 (syz-executor.0), ts 43875236115, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x154/0x170 mm/page_alloc.c:1536 prep_new_page mm/page_alloc.c:1543 [inline] get_page_from_freelist+0x1727/0x1870 mm/page_alloc.c:3183 __alloc_pages+0x11f/0x280 mm/page_alloc.c:4439 folio_alloc+0x13/0x30 mm/mempolicy.c:2308 filemap_alloc_folio+0x44/0x1a0 mm/filemap.c:979 ra_alloc_folio mm/readahead.c:481 [inline] page_cache_ra_order+0x12f/0x330 mm/readahead.c:537 do_sync_mmap_readahead+0x15f/0x2f0 filemap_fault+0x201/0x700 mm/filemap.c:3289 __do_fault+0x38/0x100 mm/memory.c:4218 do_read_fault mm/memory.c:4582 [inline] do_fault mm/memory.c:4719 [inline] do_pte_missing+0x148/0xcb0 mm/memory.c:3683 handle_pte_fault mm/memory.c:5010 [inline] __handle_mm_fault mm/memory.c:5150 [inline] handle_mm_fault+0x6b4/0xfd0 mm/memory.c:5315 faultin_page mm/gup.c:956 [inline] __get_user_pages+0x3c2/0x7a0 mm/gup.c:1239 __get_user_pages_locked mm/gup.c:1504 [inline] get_dump_page+0x87/0x110 mm/gup.c:2018 dump_user_range+0x5c/0x230 fs/coredump.c:913 elf_core_dump+0xf96/0x1000 fs/binfmt_elf.c:2142 do_coredump+0xa59/0xec0 fs/coredump.c:764 page_owner free stack trace missing addr:0000000020008000 vm_flags:000000d0 anon_vma:0000000000000000 mapping:ffff8881164b2110 index:7 file:bus fault:xfs_filemap_fault mmap:xfs_file_mmap read_folio:xfs_vm_read_folio CPU: 1 PID: 3466 Comm: syz-executor.0 Tainted: G B 6.5.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106 print_bad_pte+0x202/0x240 mm/memory.c:535 zap_pte_range mm/memory.c:1457 [inline] zap_pmd_range mm/memory.c:1572 [inline] zap_pud_range mm/memory.c:1601 [inline] zap_p4d_range mm/memory.c:1622 [inline] unmap_page_range+0x825/0xf90 mm/memory.c:1643 unmap_vmas+0xa3/0x100 mm/memory.c:1730 exit_mmap+0x1c6/0x510 mm/mmap.c:3210 __mmput+0x3d/0x110 kernel/fork.c:1348 exit_mm+0xa9/0x110 kernel/exit.c:567 do_exit+0x242/0xa50 kernel/exit.c:861 do_group_exit+0x85/0xa0 kernel/exit.c:1024 get_signal+0x73f/0x7f0 kernel/signal.c:2881 arch_do_signal_or_restart+0x89/0x2b0 arch/x86/kernel/signal.c:308 exit_to_user_mode_loop+0x61/0xb0 kernel/entry/common.c:168 exit_to_user_mode_prepare+0x6c/0xc0 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x2b/0x1d0 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f81b6a7cae9 Code: Unable to access opcode bytes at 0x7f81b6a7cabf. RSP: 002b:00007f81b784b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffe5 RBX: 00007f81b6b9bf80 RCX: 00007f81b6a7cae9 RDX: 0000000000000002 RSI: 0000000020000300 RDI: 0000000000000007 RBP: 00007f81b6ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008800000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f81b6b9bf80 R15: 00007ffe585d1708