ci2 starts bisection 2023-12-09 09:32:16.03427863 +0000 UTC m=+122293.140199970 bisecting fixing commit since c2cbfe5f51227dfe6ef7be013f0d56a32c040faa building syzkaller on 696ea0d2f4fdaa17db929e152edba19bf7666d84 ensuring issue is reproducible on original commit c2cbfe5f51227dfe6ef7be013f0d56a32c040faa testing commit c2cbfe5f51227dfe6ef7be013f0d56a32c040faa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 70d814a0e67410846f06ab8f5174db0b6f2edcefa8a5f15d8c4284401d6e6363 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit c2cbfe5f51227dfe6ef7be013f0d56a32c040faa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dd107eab02db47b3955f46125f79351164b2d4799c921dc203ac694d310ef933 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed kconfig minimization: base=3820 full=7525 leaves diff=1996 split chunks (needed=false): <1996> split chunk #0 of len 1996 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit c2cbfe5f51227dfe6ef7be013f0d56a32c040faa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7f4a15f890e7559bcd31f9c3d83aa1ffc0b7de279334548086d5209cc88b831b all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, 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 c2cbfe5f51227dfe6ef7be013f0d56a32c040faa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9bda33b38b06eb7f53683b4a7f6e2ac3aebff88ca0f6309c84e0bc3eeff3c055 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit c2cbfe5f51227dfe6ef7be013f0d56a32c040faa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 953b0b9b08242c0da9a6a7924aaf3c718f0d066af9e679895543162b0e213f31 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit c2cbfe5f51227dfe6ef7be013f0d56a32c040faa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cda2383fd94f054092d9fca0964b59a8c61a211edce78e3800c5304dd90cff41 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit c2cbfe5f51227dfe6ef7be013f0d56a32c040faa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b805d7a7e08834f23fa7244d08f6ac8b77f20062513962394b6c86970c29daa9 all runs: OK false negative chance: 0.000 minimized to 396 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 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_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_FOTG210_HCD USB_FOTG210_UDC USB_FTDI_ELAN 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 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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_U132_HCD 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 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_IOMMU_TYPE1 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_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_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_STK1160_COMMON 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_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 ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed determining the merge base between c2cbfe5f51227dfe6ef7be013f0d56a32c040faa and f2e8a57ee9036c7d5443382b6c3c09b51a92ec7e 830b3c68c1fb1e9176028d02ef86f3cf76aa2476/Linux 6.1 is a merge base, check if it has the bug testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e9fa163c6b7912f8e55a4a61cc6dfd84ec49ffde67bcd385fabf40682fff1cb2 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] testing current HEAD f2e8a57ee9036c7d5443382b6c3c09b51a92ec7e testing commit f2e8a57ee9036c7d5443382b6c3c09b51a92ec7e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6f3e2340be8115ef1f454c259ea401d4da887f5f578e2bfc79c93309d984ecf2 all runs: OK false negative chance: 0.000 # git bisect start f2e8a57ee9036c7d5443382b6c3c09b51a92ec7e 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 Bisecting: 48013 revisions left to test after this (roughly 16 steps) [859c74595156f894c4e8edd523c6d1c4a1899127] Merge tag 'arm-fixes-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 859c74595156f894c4e8edd523c6d1c4a1899127 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 787b4391c563043cb1aac9aeff6a9708b4c9d1a69b1189e8e8909aa2b7567619 all runs: OK false negative chance: 0.000 # git bisect bad 859c74595156f894c4e8edd523c6d1c4a1899127 Bisecting: 24363 revisions left to test after this (roughly 15 steps) [307e14c039063f0c9bd7a18a7add8f940580dcc9] Merge tag '6.3-rc-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 307e14c039063f0c9bd7a18a7add8f940580dcc9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cd37e67d6cc523b60af98f723efd63b4ec4036da59a10feaee556acbbe3dbe95 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] # git bisect good 307e14c039063f0c9bd7a18a7add8f940580dcc9 Bisecting: 12125 revisions left to test after this (roughly 14 steps) [c8cc58e289ed3b5bc50258f52776cf3dfa3bad66] Merge tag 'drm-next-2023-04-24' of git://anongit.freedesktop.org/drm/drm determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit c8cc58e289ed3b5bc50258f52776cf3dfa3bad66 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a1502a4b5368b09b78c89b2844bd3f92e4ec348f1feabab6f5af6990cbdf4f75 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] # git bisect good c8cc58e289ed3b5bc50258f52776cf3dfa3bad66 Bisecting: 6100 revisions left to test after this (roughly 13 steps) [b39667abcdcc754e32a0eb0df9cf49d45333d4ae] Merge tag 'tty-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit b39667abcdcc754e32a0eb0df9cf49d45333d4ae gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2872a4db0bcef1c495a434d483247b175b5cc9bf2cb84e55086f3eae349131a2 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] # git bisect good b39667abcdcc754e32a0eb0df9cf49d45333d4ae Bisecting: 3047 revisions left to test after this (roughly 12 steps) [865fdb08197e657c59e74a35fa32362b12397f58] Merge tag 'input-for-v6.4-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input determine whether the revision contains the guilty commit revision 307e14c039063f0c9bd7a18a7add8f940580dcc9 crashed and is reachable testing commit 865fdb08197e657c59e74a35fa32362b12397f58 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f8d362b91d244cddb881d030829afd2ed438133a23472cdc340a552a48ada379 all runs: OK false negative chance: 0.000 # git bisect bad 865fdb08197e657c59e74a35fa32362b12397f58 Bisecting: 1466 revisions left to test after this (roughly 11 steps) [70cc1b5307e8ee3076fdf2ecbeb89eb973aa0ff7] Merge tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux determine whether the revision contains the guilty commit revision 307e14c039063f0c9bd7a18a7add8f940580dcc9 crashed and is reachable testing commit 70cc1b5307e8ee3076fdf2ecbeb89eb973aa0ff7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 34f718e7d67788ccf55c0b9dbf3360986b0d2c21bf6ecf11a8a6f93781261bb1 all runs: OK false negative chance: 0.000 # git bisect bad 70cc1b5307e8ee3076fdf2ecbeb89eb973aa0ff7 Bisecting: 816 revisions left to test after this (roughly 10 steps) [513f17f8d6b67563d977c730d50bc0db6ea6e1b0] Merge tag 'sh-for-v6.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux determine whether the revision contains the guilty commit revision 307e14c039063f0c9bd7a18a7add8f940580dcc9 crashed and is reachable testing commit 513f17f8d6b67563d977c730d50bc0db6ea6e1b0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e72d480d1e103674ba64e2943ae5e0ad404c010950188e28e92cc95f8d14dfe5 all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] # git bisect good 513f17f8d6b67563d977c730d50bc0db6ea6e1b0 Bisecting: 384 revisions left to test after this (roughly 9 steps) [7fa8a8ee9400fe8ec188426e40e481717bc5e924] Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm determine whether the revision contains the guilty commit revision 307e14c039063f0c9bd7a18a7add8f940580dcc9 crashed and is reachable testing commit 7fa8a8ee9400fe8ec188426e40e481717bc5e924 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8307997171ebc25ca69daababa12dccb9fd6e9a8bbaf726b1606e8ee48cb0c7a all runs: OK false negative chance: 0.000 # git bisect bad 7fa8a8ee9400fe8ec188426e40e481717bc5e924 Bisecting: 215 revisions left to test after this (roughly 8 steps) [1e8fed873e7499bab8da05b2006f6a3960796c68] powerpc: drop ranges for definition of ARCH_FORCE_MAX_ORDER determine whether the revision contains the guilty commit revision 307e14c039063f0c9bd7a18a7add8f940580dcc9 crashed and is reachable testing commit 1e8fed873e7499bab8da05b2006f6a3960796c68 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc8ac933222dcfeb60e20e0be752e7d1c0f6ca9ee75b38399a377ebfd5c2edea all runs: OK false negative chance: 0.000 # git bisect bad 1e8fed873e7499bab8da05b2006f6a3960796c68 Bisecting: 107 revisions left to test after this (roughly 7 steps) [61883d3c32418f16e35e030ca0cfd5d2de95a649] iommu: fix MAX_ORDER usage in __iommu_dma_alloc_pages() determine whether the revision contains the guilty commit revision 307e14c039063f0c9bd7a18a7add8f940580dcc9 crashed and is reachable testing commit 61883d3c32418f16e35e030ca0cfd5d2de95a649 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4f3bccb266491d28326ee07803b638be13beb32c5ab58b88d1e86b0187bbed82 all runs: OK false negative chance: 0.000 # git bisect bad 61883d3c32418f16e35e030ca0cfd5d2de95a649 Bisecting: 53 revisions left to test after this (roughly 6 steps) [5da1a8687a9685d60a92abf4f6b735579ebe6b40] mm/gup.c: fix typo in comments determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 5da1a8687a9685d60a92abf4f6b735579ebe6b40 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0873a764d86e83af2f4b6b1392e4960137e436741954b1c2ab45ae45b2cc54b0 all runs: OK false negative chance: 0.000 # git bisect bad 5da1a8687a9685d60a92abf4f6b735579ebe6b40 Bisecting: 26 revisions left to test after this (roughly 5 steps) [e2bf3e2caa62f72d6a67048df440d83a12ae1a2a] mm: memory: use folio_throttle_swaprate() in do_anonymous_page() determine whether the revision contains the guilty commit revision 307e14c039063f0c9bd7a18a7add8f940580dcc9 crashed and is reachable testing commit e2bf3e2caa62f72d6a67048df440d83a12ae1a2a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8529c80a982d660f6d324ca0517d19207ffc785ffe10e9296f6cb2d0b7ef785 all runs: OK false negative chance: 0.000 # git bisect bad e2bf3e2caa62f72d6a67048df440d83a12ae1a2a Bisecting: 13 revisions left to test after this (roughly 4 steps) [88e3009b5283bbd41447f0352d0b9df16cf6f183] lazy tlb: allow lazy tlb mm refcounting to be configurable determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 88e3009b5283bbd41447f0352d0b9df16cf6f183 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 99d24b044eefb486c241427caf441c9ac5a2a6bd5e6897fa0c0ac1765359e316 all runs: OK false negative chance: 0.000 # git bisect bad 88e3009b5283bbd41447f0352d0b9df16cf6f183 Bisecting: 6 revisions left to test after this (roughly 3 steps) [a1b92a3f14984c96ace381f204b5d72c0805296e] mm/userfaultfd: support WP on multiple VMAs determine whether the revision contains the guilty commit revision 307e14c039063f0c9bd7a18a7add8f940580dcc9 crashed and is reachable testing commit a1b92a3f14984c96ace381f204b5d72c0805296e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ba76d1d90eba4e8d5884f1e4cd714f21980e3f2f1398939e57d0fbd53915bbfd all runs: crashed: WARNING in untrack_pfn representative crash: WARNING in untrack_pfn, types: [WARNING] # git bisect good a1b92a3f14984c96ace381f204b5d72c0805296e Bisecting: 3 revisions left to test after this (roughly 2 steps) [32d32ef140de3cc3f6817999415a72f7b0cb52f5] mm: multi-gen LRU: improve design doc determine whether the revision contains the guilty commit revision 307e14c039063f0c9bd7a18a7add8f940580dcc9 crashed and is reachable testing commit 32d32ef140de3cc3f6817999415a72f7b0cb52f5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0b6f8f87dcb068631b035ca9bf7e2dc10b4f4e2b32a698d14b4646e781b96536 all runs: OK false negative chance: 0.000 # git bisect bad 32d32ef140de3cc3f6817999415a72f7b0cb52f5 Bisecting: 0 revisions left to test after this (roughly 1 step) [9a52b2f32a0942047348b30f866b846da5fcf4e3] mm: multi-gen LRU: clean up sysfs code determine whether the revision contains the guilty commit revision a1b92a3f14984c96ace381f204b5d72c0805296e crashed and is reachable testing commit 9a52b2f32a0942047348b30f866b846da5fcf4e3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8c2f051c969869ab12729c6ecc0f1bad61ea78d6651f1556ec4b8a349606f8fb all runs: OK false negative chance: 0.000 # git bisect bad 9a52b2f32a0942047348b30f866b846da5fcf4e3 Bisecting: 0 revisions left to test after this (roughly 0 steps) [d155df53f31068c3340733d586eb9b3ddfd70fc5] x86/mm/pat: clear VM_PAT if copy_p4d_range failed determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit d155df53f31068c3340733d586eb9b3ddfd70fc5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 024b8bffcacd3c48d5a410e70daded568334e3adad7cc12d1b2a1c3c122f265c all runs: OK false negative chance: 0.000 # git bisect bad d155df53f31068c3340733d586eb9b3ddfd70fc5 d155df53f31068c3340733d586eb9b3ddfd70fc5 is the first bad commit commit d155df53f31068c3340733d586eb9b3ddfd70fc5 Author: Ma Wupeng Date: Fri Feb 17 10:56:15 2023 +0800 x86/mm/pat: clear VM_PAT if copy_p4d_range failed Syzbot reports a warning in untrack_pfn(). Digging into the root we found that this is due to memory allocation failure in pmd_alloc_one. And this failure is produced due to failslab. In copy_page_range(), memory alloaction for pmd failed. During the error handling process in copy_page_range(), mmput() is called to remove all vmas. While untrack_pfn this empty pfn, warning happens. Here's a simplified flow: dup_mm dup_mmap copy_page_range copy_p4d_range copy_pud_range copy_pmd_range pmd_alloc __pmd_alloc pmd_alloc_one page = alloc_pages(gfp, 0); if (!page) return NULL; mmput exit_mmap unmap_vmas unmap_single_vma untrack_pfn follow_phys WARN_ON_ONCE(1); Since this vma is not generate successfully, we can clear flag VM_PAT. In this case, untrack_pfn() will not be called while cleaning this vma. Function untrack_pfn_moved() has also been renamed to fit the new logic. Link: https://lkml.kernel.org/r/20230217025615.1595558-1-mawupeng1@huawei.com Signed-off-by: Ma Wupeng Reported-by: Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Dave Hansen Cc: Peter Zijlstra Cc: Suresh Siddha Cc: Toshi Kani Signed-off-by: Andrew Morton arch/x86/mm/pat/memtype.c | 12 ++++++++---- include/linux/pgtable.h | 7 ++++--- mm/memory.c | 1 + mm/mremap.c | 2 +- 4 files changed, 14 insertions(+), 8 deletions(-) accumulated error probability: 0.00 culprit signature: 024b8bffcacd3c48d5a410e70daded568334e3adad7cc12d1b2a1c3c122f265c parent signature: ba76d1d90eba4e8d5884f1e4cd714f21980e3f2f1398939e57d0fbd53915bbfd revisions tested: 26, total time: 4h53m50.605311207s (build: 1h14m31.459982616s, test: 3h29m48.797297682s) first good commit: d155df53f31068c3340733d586eb9b3ddfd70fc5 x86/mm/pat: clear VM_PAT if copy_p4d_range failed recipients (to): ["akpm@linux-foundation.org" "mawupeng1@huawei.com"] recipients (cc): []