ci starts bisection 2023-12-31 03:03:48.512380178 +0000 UTC m=+721856.109145386
bisecting fixing commit since 85eb043618bb17124050197d71c453d4a1f556e5
building syzkaller on 03d9c195daed8fca30b642783f35657aa7e32209
ensuring issue is reproducible on original commit 85eb043618bb17124050197d71c453d4a1f556e5

testing commit 85eb043618bb17124050197d71c453d4a1f556e5 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ff2e725a2d7174e2a502fe4e3bd3e17e5deccabe2ad8612ee14cc3e8a30ca7c2
run #0: crashed: kernel BUG in folio_end_writeback
run #1: crashed: kernel BUG in end_buffer_async_write
run #2: crashed: kernel BUG in folio_end_writeback
run #3: crashed: kernel BUG in folio_end_writeback
run #4: crashed: kernel BUG in folio_end_writeback
run #5: crashed: kernel BUG in end_buffer_async_write
run #6: crashed: kernel BUG in folio_end_writeback
run #7: crashed: kernel BUG in folio_end_writeback
run #8: crashed: kernel BUG in folio_end_writeback
run #9: crashed: kernel BUG in folio_end_writeback
run #10: crashed: kernel BUG in end_buffer_async_write
run #11: crashed: kernel BUG in end_buffer_async_write
run #12: crashed: kernel BUG in folio_end_writeback
run #13: crashed: kernel BUG in end_buffer_async_write
run #14: crashed: kernel BUG in folio_end_writeback
run #15: crashed: kernel BUG in folio_end_writeback
run #16: crashed: kernel BUG in folio_end_writeback
run #17: crashed: kernel BUG in folio_end_writeback
run #18: crashed: kernel BUG in folio_end_writeback
run #19: crashed: kernel BUG in folio_end_writeback
representative crash: kernel BUG in folio_end_writeback, types: [BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 85eb043618bb17124050197d71c453d4a1f556e5 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: cb2d9ff93deb78dd6e4aa12ece3f2d7f0dd99698e7d5b11291fcc372dc2f97ad
run #0: crashed: kernel BUG in folio_end_writeback
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: kernel BUG in folio_end_writeback, types: [BUG]
kconfig minimization: base=3915 full=7645 leaves diff=2004
split chunks (needed=false): <2004>
split chunk #0 of len 2004 into 5 parts
testing without sub-chunk 1/5
testing commit 85eb043618bb17124050197d71c453d4a1f556e5 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5bb14bdceccebef2e956fe3b882fe9b5c89db21ff2787105ba5b036ab8c14e67
run #0: crashed: kernel BUG in end_buffer_async_write
run #1: crashed: kernel BUG in folio_end_writeback
run #2: crashed: kernel BUG in folio_end_writeback
run #3: crashed: kernel BUG in folio_end_writeback
run #4: crashed: kernel BUG in folio_end_writeback
run #5: crashed: kernel BUG in end_buffer_async_write
run #6: crashed: kernel BUG in folio_end_writeback
run #7: crashed: kernel BUG in folio_end_writeback
run #8: crashed: kernel BUG in end_buffer_async_write
run #9: crashed: kernel BUG in folio_end_writeback
run #10: crashed: kernel BUG in folio_end_writeback
run #11: crashed: kernel BUG in folio_end_writeback
run #12: crashed: kernel BUG in folio_end_writeback
run #13: crashed: kernel BUG in end_buffer_async_write
run #14: crashed: kernel BUG in folio_end_writeback
run #15: crashed: kernel BUG in folio_end_writeback
run #16: crashed: kernel BUG in end_buffer_async_write
run #17: crashed: kernel BUG in folio_end_writeback
run #18: crashed: kernel BUG in end_buffer_async_write
run #19: crashed: kernel BUG in folio_end_writeback
representative crash: kernel BUG in end_buffer_async_write, types: [BUG]
the chunk can be dropped
testing without sub-chunk 2/5
testing commit 85eb043618bb17124050197d71c453d4a1f556e5 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 11e3b419a95e47a6bcb664c605a6fe32c703c8d2a4db3ddd3f8121aa600c12e7
run #0: crashed: kernel BUG in folio_end_writeback
run #1: crashed: kernel BUG in folio_end_writeback
run #2: crashed: kernel BUG in folio_end_writeback
run #3: crashed: kernel BUG in end_buffer_async_write
run #4: crashed: kernel BUG in end_buffer_async_write
run #5: crashed: kernel BUG in folio_end_writeback
run #6: crashed: kernel BUG in end_buffer_async_write
run #7: crashed: kernel BUG in folio_end_writeback
run #8: crashed: kernel BUG in end_buffer_async_write
run #9: crashed: kernel BUG in folio_end_writeback
run #10: crashed: kernel BUG in folio_end_writeback
run #11: crashed: kernel BUG in folio_end_writeback
run #12: crashed: kernel BUG in folio_end_writeback
run #13: crashed: kernel BUG in folio_end_writeback
run #14: crashed: kernel BUG in end_buffer_async_write
run #15: crashed: kernel BUG in folio_end_writeback
run #16: crashed: kernel BUG in end_buffer_async_write
run #17: crashed: kernel BUG in folio_end_writeback
run #18: crashed: kernel BUG in end_buffer_async_write
run #19: crashed: kernel BUG in folio_end_writeback
representative crash: kernel BUG in folio_end_writeback, types: [BUG]
the chunk can be dropped
testing without sub-chunk 3/5
testing commit 85eb043618bb17124050197d71c453d4a1f556e5 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c2d4b6a6ddefe539195d4af6cdcfa56845b9d12e5e1852f832fa540633dd8eb3
run #0: crashed: kernel BUG in folio_end_writeback
run #1: crashed: kernel BUG in folio_end_writeback
run #2: crashed: kernel BUG in folio_end_writeback
run #3: crashed: kernel BUG in end_buffer_async_write
run #4: crashed: kernel BUG in folio_end_writeback
run #5: crashed: kernel BUG in folio_end_writeback
run #6: crashed: kernel BUG in folio_end_writeback
run #7: crashed: kernel BUG in end_buffer_async_write
run #8: crashed: kernel BUG in end_buffer_async_write
run #9: crashed: kernel BUG in end_buffer_async_write
run #10: crashed: kernel BUG in folio_end_writeback
run #11: crashed: kernel BUG in end_buffer_async_write
run #12: crashed: kernel BUG in end_buffer_async_write
run #13: crashed: kernel BUG in folio_end_writeback
run #14: crashed: kernel BUG in end_buffer_async_write
run #15: crashed: kernel BUG in folio_end_writeback
run #16: crashed: kernel BUG in folio_end_writeback
run #17: crashed: kernel BUG in folio_end_writeback
run #18: crashed: kernel BUG in folio_end_writeback
run #19: crashed: kernel BUG in folio_end_writeback
representative crash: kernel BUG in folio_end_writeback, types: [BUG]
the chunk can be dropped
testing without sub-chunk 4/5
testing commit 85eb043618bb17124050197d71c453d4a1f556e5 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 15e2dd5052bb06820c8a469023248e3c2d672f07d08538e91963c38be12f3622
all runs: OK
false negative chance: 0.000
testing without sub-chunk 5/5
testing commit 85eb043618bb17124050197d71c453d4a1f556e5 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 32519754d8258952690df5d2eb72ec1ab45397098f03c1cbd455c96e47881a08
run #0: crashed: kernel BUG in folio_end_writeback
run #1: crashed: kernel BUG in folio_end_writeback
run #2: crashed: kernel BUG in folio_end_writeback
run #3: crashed: kernel BUG in folio_end_writeback
run #4: crashed: kernel BUG in end_buffer_async_write
run #5: crashed: kernel BUG in folio_end_writeback
run #6: crashed: kernel BUG in folio_end_writeback
run #7: crashed: kernel BUG in folio_end_writeback
run #8: crashed: kernel BUG in folio_end_writeback
run #9: crashed: kernel BUG in folio_end_writeback
run #10: crashed: kernel BUG in end_buffer_async_write
run #11: crashed: kernel BUG in end_buffer_async_write
run #12: crashed: kernel BUG in end_buffer_async_write
run #13: crashed: kernel BUG in folio_end_writeback
run #14: crashed: kernel BUG in folio_end_writeback
run #15: crashed: kernel BUG in folio_end_writeback
run #16: crashed: kernel BUG in folio_end_writeback
run #17: crashed: kernel BUG in folio_end_writeback
run #18: crashed: kernel BUG in folio_end_writeback
run #19: crashed: kernel BUG in folio_end_writeback
representative crash: kernel BUG in folio_end_writeback, types: [BUG]
the chunk can be dropped
minimized to 401 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_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 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 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_842_COMPRESS PSTORE_COMPRESS PSTORE_DEFLATE_COMPRESS PSTORE_DEFLATE_COMPRESS_DEFAULT PSTORE_LZ4HC_COMPRESS PSTORE_LZ4_COMPRESS PSTORE_LZO_COMPRESS PSTORE_ZSTD_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 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 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_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]
testing current HEAD 453f5db0619e2ad64076aab16ff5a00e0f7c53a2
testing commit 453f5db0619e2ad64076aab16ff5a00e0f7c53a2 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 7f6c20009b85c235d3b1d447ccd9744e1e2d319ca0d06dcd1c72e9e6e37eee66
run #0: crashed: kernel BUG in folio_end_writeback
run #1: crashed: kernel BUG in folio_end_writeback
run #2: crashed: kernel BUG in folio_end_writeback
run #3: crashed: kernel BUG in end_buffer_async_write
run #4: crashed: kernel BUG in end_buffer_async_write
run #5: crashed: kernel BUG in end_buffer_async_write
run #6: crashed: kernel BUG in folio_end_writeback
run #7: crashed: kernel BUG in end_buffer_async_write
run #8: crashed: kernel BUG in folio_end_writeback
run #9: crashed: kernel BUG in end_buffer_async_write
run #10: crashed: kernel BUG in folio_end_writeback
run #11: crashed: kernel BUG in end_buffer_async_write
run #12: crashed: kernel BUG in folio_end_writeback
run #13: crashed: kernel BUG in folio_end_writeback
run #14: crashed: kernel BUG in end_buffer_async_write
run #15: crashed: kernel BUG in folio_end_writeback
run #16: crashed: kernel BUG in end_buffer_async_write
run #17: crashed: kernel BUG in end_buffer_async_write
run #18: OK
run #19: OK
representative crash: kernel BUG in folio_end_writeback, types: [BUG]
crash still not fixed/happens on the oldest tested release
reproducer is flaky (1.00 repro chance estimate)
revisions tested: 8, total time: 2h12m16.624614672s (build: 53m15.81525687s, test: 1h6m6.018459484s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'trace-v6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
crash: kernel BUG in folio_end_writeback
 task_work_run+0x20a/0x290 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xd2/0xe0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xa9/0x130 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
 do_syscall_64+0x52/0xe0 arch/x86/entry/common.c:89
------------[ cut here ]------------
kernel BUG at mm/filemap.c:1577!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5505 Comm: segctord Not tainted 6.7.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:folio_end_writeback+0x373/0x4d0 mm/filemap.c:1577
Code: 39 f8 0f 84 f3 fc ff ff 4c 89 ff 48 c7 c6 20 31 6b 85 e8 10 b3 0c 00 90 0f 0b 4c 89 ff 48 c7 c6 40 26 6b 85 e8 fe b2 0c 00 90 <0f> 0b f3 0f 1e fa 4c 89 f8 48 c1 e0 34 0f 85 20 fd ff ff 4c 89 ff
RSP: 0018:ffffc90004a4f6a8 EFLAGS: 00010246
RAX: ffa0cb760dced500 RBX: 1ffffd400036f381 RCX: ffffc90004a4f503
RDX: 0000000000000001 RSI: ffffffff85665a40 RDI: ffffffff8594bfe0
RBP: 1ffffd400036f380 R08: ffffffff872e73ef R09: 1ffffffff0e5ce7d
R10: dffffc0000000000 R11: fffffbfff0e5ce7e R12: ffff88807301d788
R13: dffffc0000000000 R14: ffffea0001b79c08 R15: ffffea0001b79c00
FS:  0000000000000000(0000) GS:ffff8880ba900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc2b302af8 CR3: 00000000139ca000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nilfs_segctor_complete_write fs/nilfs2/segment.c:1875 [inline]
 nilfs_segctor_wait fs/nilfs2/segment.c:1962 [inline]
 nilfs_segctor_do_construct+0x4952/0x6170 fs/nilfs2/segment.c:2128
 nilfs_segctor_construct+0x120/0x760 fs/nilfs2/segment.c:2415
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2523 [inline]
 nilfs_segctor_thread+0x5aa/0xeb0 fs/nilfs2/segment.c:2606
 kthread+0x27d/0x2f0 kernel/kthread.c:388
 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_end_writeback+0x373/0x4d0 mm/filemap.c:1577
Code: 39 f8 0f 84 f3 fc ff ff 4c 89 ff 48 c7 c6 20 31 6b 85 e8 10 b3 0c 00 90 0f 0b 4c 89 ff 48 c7 c6 40 26 6b 85 e8 fe b2 0c 00 90 <0f> 0b f3 0f 1e fa 4c 89 f8 48 c1 e0 34 0f 85 20 fd ff ff 4c 89 ff
RSP: 0018:ffffc90004a4f6a8 EFLAGS: 00010246
RAX: ffa0cb760dced500 RBX: 1ffffd400036f381 RCX: ffffc90004a4f503
RDX: 0000000000000001 RSI: ffffffff85665a40 RDI: ffffffff8594bfe0
RBP: 1ffffd400036f380 R08: ffffffff872e73ef R09: 1ffffffff0e5ce7d
R10: dffffc0000000000 R11: fffffbfff0e5ce7e R12: ffff88807301d788
R13: dffffc0000000000 R14: ffffea0001b79c08 R15: ffffea0001b79c00
FS:  0000000000000000(0000) GS:ffff8880ba900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7074b0642e CR3: 00000000139ca000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400