ci starts bisection 2023-09-07 11:02:16.856284527 +0000 UTC m=+60668.355564397
bisecting cause commit starting from db906f0ca6bb55b7237b880e06ec2fc95ab67e16
building syzkaller on 696ea0d2f4fdaa17db929e152edba19bf7666d84
ensuring issue is reproducible on original commit db906f0ca6bb55b7237b880e06ec2fc95ab67e16

testing commit db906f0ca6bb55b7237b880e06ec2fc95ab67e16 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6b3ddc48c695d9fa80f62f24fac63cd800ac4847373992f1af67da40d3571690
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit db906f0ca6bb55b7237b880e06ec2fc95ab67e16 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1a8e1c9b6cf3a53e53f41dc78cd17bfba2df57501cf23488f23be2629af61587
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
the bug reproduces without the instrumentation
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
kconfig minimization: base=3883 full=7690 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit db906f0ca6bb55b7237b880e06ec2fc95ab67e16 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: aa7d7a2ecedd6066b91335f34325a86623779a1f1f742e14000c294331d0a0e4
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing commit db906f0ca6bb55b7237b880e06ec2fc95ab67e16 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a33544d8bff12e4ae0dd5c8aae9c7f0d27138d25202587870e2ecaf44bf3dbd4
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
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 db906f0ca6bb55b7237b880e06ec2fc95ab67e16 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 129f250d64f2e1f34de0b2df6198becf8df3c7071a42121a43a4d7258d86699d
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit db906f0ca6bb55b7237b880e06ec2fc95ab67e16 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 95567401aaca5ce03c4fed39a2dc7adf394ee0f931752dab5dee72271d7adf2d
all runs: OK
false negative chance: 0.000
testing without sub-chunk 5/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit db906f0ca6bb55b7237b880e06ec2fc95ab67e16 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 182b5ea83dc1085422478918a2bb267f25ea73d85b5b0495a7b2609e12523a6e
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
the chunk can be dropped
minimized to 404 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IP_SCTP L2TP LIBNVDIMM MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_RETU MMC MTD MTD_UBI NETFILTER_ADVANCED NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_CONNTRACK_SNMP NF_NAT_REDIRECT 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_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_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 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 SND_CTL_FAST_LOOKUP SND_CTL_LED SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_SINGLE SQUASHFS_DECOMP_SINGLE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSFB SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TASKS_TRACE_RCU TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP 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_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 UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_HOST USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VXLAN WIRELESS WLAN ZONE_DEVICE]
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], 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: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 7e10246ea0c6bd1eaafd62d1ae4c0d26577578a8a4c4e88ec51bcb72f37fef89
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
testing release v6.4
testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9253e06c998c84eb0aedf1c1ce8f1ed40a44a770e6b0f208d7b6dfd5438e0397
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
testing release v6.3
testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 57af03e4104a129f83f8edf167616fbb7e1b5708d7f549e86ae373703f588ded
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
testing release v6.1
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ab5cd373f0741230ca323e89d6d75dacedf3491c344f805288f55af6b6702532
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
testing release v5.19
testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 858cc6bdbf9a554423cf8c01e0134c4b599e1ccf9fa06dc3aa9ed0dbd149d86e
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
testing release v5.17
testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e973556d355d07649d488ad6210f0f903344a623593e4283a6c5ed3a8e4eebd4
all runs: crashed: kernel BUG in filemap_unaccount_folio
representative crash: kernel BUG in filemap_unaccount_folio, types: [BUG]
testing release v5.15
testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 92bf00caf0d1e1d7eb525f884fc09affa19f898903ccd1facc9b1212e94b5728
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
testing release v5.13
testing commit 62fb9874f5da54fdb243003b386128037319b219 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c615aab52097eb61fee9da18b16bce9662cf7a58723c4041444f3c2f1faa5de3
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
testing release v5.10
testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 92a7a12f837876c02a884ae8da3ac40cdb7b45cb667b21b36ec583a89d5f39ad
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 gcc
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0a32d882c545ebac15e39ae6a8129f2969c10647665c866e55ab09fdd34499f9
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
testing release v5.4
testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c304c7fdffedca627eda236b818fe2e48dc077220a06cee8a09146dee40843c4
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
testing release v5.1
testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 38f3a0b0ecb558e6c0df7956afce4967433328150a1192a54a93546ab880c89c
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
testing release v4.19
testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 0cfa7e38e8c9820e911bb4c0751897754815a5c6e9ce06e9d082f43ae22e1fbf
all runs: OK
false negative chance: 0.000
# git bisect start e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d
Bisecting: 21557 revisions left to test after this (roughly 14 steps)
[3b6fd6ffb27c2efa003c6d4d15ca72c054b71d7c] drivers/base/memory.c: remove an unnecessary check on NR_MEM_SECTIONS

testing commit 3b6fd6ffb27c2efa003c6d4d15ca72c054b71d7c gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e561a2972bef43fbff2c69a03e1caf150272c1c7eb53f7c4ed8c1af541e73923
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
# git bisect bad 3b6fd6ffb27c2efa003c6d4d15ca72c054b71d7c
Bisecting: 10917 revisions left to test after this (roughly 13 steps)
[c38239b4be1ac7e4bcf5bbd971353bae51525b8f] Merge branch 'parisc-4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

testing commit c38239b4be1ac7e4bcf5bbd971353bae51525b8f gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a5f547df862d9b441cf56a09f7aaa5684749858c00c5000a2bff08012df6a7b6
all runs: OK
false negative chance: 0.000
# git bisect good c38239b4be1ac7e4bcf5bbd971353bae51525b8f
Bisecting: 5462 revisions left to test after this (roughly 12 steps)
[a01aa7680e3dea204c64bb245dc7a6c46e2e15f9] Merge branch 'hns3-next'

testing commit a01aa7680e3dea204c64bb245dc7a6c46e2e15f9 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: de42e2eb84d389478001770c723f96d28b2fb220907676f9ecdc3ba3cf106312
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
# git bisect bad a01aa7680e3dea204c64bb245dc7a6c46e2e15f9
Bisecting: 2723 revisions left to test after this (roughly 11 steps)
[ef268de19756e6bc78cd3e6d9b15545f7df97ef2] Merge tag 'powerpc-4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

testing commit ef268de19756e6bc78cd3e6d9b15545f7df97ef2 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c3bf246b2935e822c68f2975332033c9971f0aa27116f5125155863809b7a425
all runs: OK
false negative chance: 0.000
# git bisect good ef268de19756e6bc78cd3e6d9b15545f7df97ef2
Bisecting: 1361 revisions left to test after this (roughly 10 steps)
[71844fac1ed459024dd2a448d63d5b28b8c87daa] nfp: add locking around representor changes

testing commit 71844fac1ed459024dd2a448d63d5b28b8c87daa gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 953a425cd4c180f43b0fdd2b790e9ecac7d488e2473004a755418da2e0a6e4cd
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
# git bisect bad 71844fac1ed459024dd2a448d63d5b28b8c87daa
Bisecting: 680 revisions left to test after this (roughly 9 steps)
[5572c815603b316d0807f18fbfabace7572cc0e2] vxlan: __vxlan_fdb_delete(): Drop unused argument vid

testing commit 5572c815603b316d0807f18fbfabace7572cc0e2 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6ee4894109928ee947e770ccc1163e2f2b0e9cbb69dec33c888b175a86d30cc2
all runs: OK
false negative chance: 0.000
# git bisect good 5572c815603b316d0807f18fbfabace7572cc0e2
Bisecting: 364 revisions left to test after this (roughly 8 steps)
[4bffc669d6248d655aeb985a0e51bfaaf21c8b40] net: remove unsafe skb_insert()

testing commit 4bffc669d6248d655aeb985a0e51bfaaf21c8b40 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b7e99fd6e72a0ecd6e658c56c44dc092a7c09f85f6176b54a979f5e9b026d64b
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
# git bisect bad 4bffc669d6248d655aeb985a0e51bfaaf21c8b40
Bisecting: 168 revisions left to test after this (roughly 7 steps)
[abe72ff4134028ff2189d29629c40a40bee0a989] Merge tag 'xfs-4.20-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

testing commit abe72ff4134028ff2189d29629c40a40bee0a989 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d2266fe7dfe4a428ad553a6a5b0aec37b9c704bd6e62e74fcb43969aa00c137f
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
# git bisect bad abe72ff4134028ff2189d29629c40a40bee0a989
Bisecting: 75 revisions left to test after this (roughly 6 steps)
[52465bce85a2d28bcec5cba5a645bb610367ab1b] Merge tag 'char-misc-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

testing commit 52465bce85a2d28bcec5cba5a645bb610367ab1b gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: aea1fc955cc2e05fb03f17f70a6e4864559c3319bf2c1b50327553f6691aeb5a
all runs: OK
false negative chance: 0.000
# git bisect good 52465bce85a2d28bcec5cba5a645bb610367ab1b
Bisecting: 37 revisions left to test after this (roughly 5 steps)
[e6005d3c42336074de3745718ac85807dd6e1e6a] Merge tag 'gpio-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

testing commit e6005d3c42336074de3745718ac85807dd6e1e6a gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ce993591cd243593939b126b76b8aed2f894f12542947905beccf8ab9ec87a0a
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
# git bisect bad e6005d3c42336074de3745718ac85807dd6e1e6a
Bisecting: 21 revisions left to test after this (roughly 4 steps)
[8cf6f361eb76bf7fca85bde15a0a9316fa124c0c] Merge branch 'drm-fixes-4.20' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

testing commit 8cf6f361eb76bf7fca85bde15a0a9316fa124c0c gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 288198c59c42084a6f558639b791b6fbe877d5be47791f9c8f3a3424bf3d8fd2
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
# git bisect bad 8cf6f361eb76bf7fca85bde15a0a9316fa124c0c
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[1d74f133252fab157b9bcd4c710cee7ffcdd01c1] Merge tag 'drm-misc-fixes-2018-11-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

testing commit 1d74f133252fab157b9bcd4c710cee7ffcdd01c1 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 288198c59c42084a6f558639b791b6fbe877d5be47791f9c8f3a3424bf3d8fd2
all runs: crashed: kernel BUG in unaccount_page_cache_page
representative crash: kernel BUG in unaccount_page_cache_page, types: [BUG]
# git bisect bad 1d74f133252fab157b9bcd4c710cee7ffcdd01c1
Bisecting: 3 revisions left to test after this (roughly 2 steps)
[8fd3b90300bec541806dac271de2fd44e2e4e2d2] drm/fb-helper: Blacklist writeback when adding connectors to fbdev

revisions tested: 32, total time: 12h14m42.209476336s (build: 8h41m50.169948798s, test: 3h9m12.923957231s)
error: bisection is taking too long (>12h0m0s), aborting