ci2 starts bisection 2023-08-17 17:11:24.904165949 +0000 UTC m=+73254.097760297 bisecting cause commit starting from 6eaae198076080886b9e7d57f4ae06fa782f90ef building syzkaller on b03242d7ab98645d2c936e1899aac9f0aeb9813e ensuring issue is reproducible on original commit 6eaae198076080886b9e7d57f4ae06fa782f90ef testing commit 6eaae198076080886b9e7d57f4ae06fa782f90ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a6b1643d09a8b0c6b1c87682fbf9807796315f6dfe9560ab4aeae05d192622a2 all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, 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 6eaae198076080886b9e7d57f4ae06fa782f90ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b3b56f9145444a1197200b43455b4c2796e215e0f36009a44a93d5cd2f613398 all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed kconfig minimization: base=3876 full=7645 leaves diff=1998 split chunks (needed=false): <1998> split chunk #0 of len 1998 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 6eaae198076080886b9e7d57f4ae06fa782f90ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f50e43552abd2327346122176150854baa6e2512393a7e34a5329193f5e448ef all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] 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 6eaae198076080886b9e7d57f4ae06fa782f90ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ef289f1bad748547343943f91edbc89397fb48b848b5378735e3e063aafe2321 all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 6eaae198076080886b9e7d57f4ae06fa782f90ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e418bc1e6d6d6edfa2190dac4bb41492424b60184be645563ff846d32012d954 all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] 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 6eaae198076080886b9e7d57f4ae06fa782f90ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 014f0071aa87653fa4d475e9000fc301d6eca47ce7386861c9150cc6b76ca400 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 6eaae198076080886b9e7d57f4ae06fa782f90ef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0fb4ab39ff478af7eced49f2716aa7808b5ca233af8107fdf911ab7caa132000 run #0: crashed: WARNING in mark_buffer_dirty run #1: crashed: WARNING in mark_buffer_dirty run #2: crashed: WARNING in mark_buffer_dirty run #3: crashed: WARNING in mark_buffer_dirty run #4: crashed: WARNING in mark_buffer_dirty run #5: crashed: WARNING in mark_buffer_dirty run #6: crashed: WARNING in mark_buffer_dirty run #7: crashed: WARNING in mark_buffer_dirty run #8: crashed: WARNING in mark_buffer_dirty run #9: OK representative crash: WARNING in mark_buffer_dirty, types: [WARNING] the chunk can be dropped minimized to 400 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_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_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 [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: af6ce1f48e5ba66404476aa6e1879416187c31c047922bc083e7d52c011ac7dd all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] testing release v6.3 testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 11060cfd3e32d3255730817e1563ca89033e40e373f04878b272593591114228 all runs: OK false negative chance: 0.000 # git bisect start 6995e2de6891c724bfeb2db33d7b87775f913ad1 457391b0380335d5e9a5babdec90ac53928b23b4 Bisecting: 8012 revisions left to test after this (roughly 13 steps) [d42b1c47570eb2ed818dc3fe94b2678124af109d] Merge tag 'devicetree-for-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux testing commit d42b1c47570eb2ed818dc3fe94b2678124af109d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1e093771b689571f075e292c0f3ffa5b419b4d911df77fddc7d02703a9bb27e1 all runs: OK false negative chance: 0.000 # git bisect good d42b1c47570eb2ed818dc3fe94b2678124af109d Bisecting: 3963 revisions left to test after this (roughly 12 steps) [58390c8ce1bddb6c623f62e7ed36383e7fa5c02f] Merge tag 'iommu-updates-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu testing commit 58390c8ce1bddb6c623f62e7ed36383e7fa5c02f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 505086b526632ba165c9cf27a479bdf92f25a4fdeebe480bac83a26a065ec0dd all runs: OK false negative chance: 0.000 # git bisect good 58390c8ce1bddb6c623f62e7ed36383e7fa5c02f Bisecting: 1979 revisions left to test after this (roughly 11 steps) [adfbf653a3ba6bb8bbb84ed90bf4f1533db545d3] Merge tag 'fbdev-for-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev testing commit adfbf653a3ba6bb8bbb84ed90bf4f1533db545d3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7133dd7ff5f02263d5915bc5cbb95dc047bd8f6a19d98700bbd7fbb1ef3eb1b0 all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] # git bisect bad adfbf653a3ba6bb8bbb84ed90bf4f1533db545d3 Bisecting: 992 revisions left to test after this (roughly 10 steps) [d4fba4dfdcce1e23bc769591bc2e993118391b53] Merge tag 'kvm-riscv-6.4-1' of https://github.com/kvm-riscv/linux into HEAD testing commit d4fba4dfdcce1e23bc769591bc2e993118391b53 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8f75dd514206049336838f3813e436db125222c83521164cb9fce25d17efdd1e all runs: OK false negative chance: 0.000 # git bisect good d4fba4dfdcce1e23bc769591bc2e993118391b53 Bisecting: 527 revisions left to test after this (roughly 9 steps) [17784de648be93b4eef0ef8fe28a16ff04feecc7] Merge tag 'core-debugobjects-2023-05-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 17784de648be93b4eef0ef8fe28a16ff04feecc7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7bbcf8e85c08f6030e06d4a1c5cead02de8e71e22c3a03c2fb271ee5e9d1827d all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] # git bisect bad 17784de648be93b4eef0ef8fe28a16ff04feecc7 Bisecting: 231 revisions left to test after this (roughly 8 steps) [b115d85a9584c98f9a7dec209d835462aa1adc09] Merge tag 'locking-core-2023-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit b115d85a9584c98f9a7dec209d835462aa1adc09 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2c46c774dd14af10fb71ef252cec23957866b8119fd8567e4f9fc09da4fe7e74 all runs: OK false negative chance: 0.000 # git bisect good b115d85a9584c98f9a7dec209d835462aa1adc09 Bisecting: 114 revisions left to test after this (roughly 7 steps) [2e1e1337881b0e9844d687982aa54b31b1269b11] Merge tag '6.4-rc-ksmbd-server-fixes-part2' of git://git.samba.org/ksmbd testing commit 2e1e1337881b0e9844d687982aa54b31b1269b11 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2c2d126d9f49f2260d8736170e4e10983ab5f510f82232d3108ed967e165cf43 all runs: OK false negative chance: 0.000 # git bisect good 2e1e1337881b0e9844d687982aa54b31b1269b11 Bisecting: 57 revisions left to test after this (roughly 6 steps) [dd9e11d6477a52ede9ebe575c83285e79e823889] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit dd9e11d6477a52ede9ebe575c83285e79e823889 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82e2f226885c867fcbddc0a19d9e686bb07af912782710270a7a3ba2526b04cf all runs: OK false negative chance: 0.000 # git bisect good dd9e11d6477a52ede9ebe575c83285e79e823889 Bisecting: 33 revisions left to test after this (roughly 5 steps) [03e5cb7b50feb687508946a702febaba24c77f0b] Merge tag 'for-6.4/io_uring-2023-05-07' of git://git.kernel.dk/linux testing commit 03e5cb7b50feb687508946a702febaba24c77f0b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5f4993eda3bf8f0020dbf0da046f801e7ddd1a54af0a6ec53930d59238c97866 all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] # git bisect bad 03e5cb7b50feb687508946a702febaba24c77f0b Bisecting: 13 revisions left to test after this (roughly 4 steps) [da9619a30e73b59605ed998bf7bc4359f5c0029a] dmapool: link blocks across pages testing commit da9619a30e73b59605ed998bf7bc4359f5c0029a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1d523f72831a17dcb441fc8365222e94ae0e839cd8339d306bd8bfb386a7e38a all runs: OK false negative chance: 0.000 # git bisect good da9619a30e73b59605ed998bf7bc4359f5c0029a Bisecting: 5 revisions left to test after this (roughly 3 steps) [706ce3caea1cc1dab8c7fd6e7d1389b46ad1570e] Merge tag 'mm-hotfixes-stable-2023-05-06-10-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit 706ce3caea1cc1dab8c7fd6e7d1389b46ad1570e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 994a244ec1eb5ea4c95e87e0758a28a5f4fca8f74b9580e002dca3ad19b13520 all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] # git bisect bad 706ce3caea1cc1dab8c7fd6e7d1389b46ad1570e Bisecting: 3 revisions left to test after this (roughly 2 steps) [28a65b49eb53e172d23567005465019658bfdb4d] nilfs2: do not write dirty data after degenerating to read-only testing commit 28a65b49eb53e172d23567005465019658bfdb4d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 540a22e0c2a106fb163558ffe15cdf44631e54e0b56942d89c34e350a226ac2d all runs: crashed: WARNING in mark_buffer_dirty representative crash: WARNING in mark_buffer_dirty, types: [WARNING] # git bisect bad 28a65b49eb53e172d23567005465019658bfdb4d Bisecting: 1 revision left to test after this (roughly 1 step) [a6a491c048882e7e424d407d32cba0b52d9ef2bf] nilfs2: fix infinite loop in nilfs_mdt_get_block() testing commit a6a491c048882e7e424d407d32cba0b52d9ef2bf gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5d9b28fa41c5b0a8207b411d0474b4f7a29c9f82ab187374a87e5cacdf5c03ec all runs: OK false negative chance: 0.000 # git bisect good a6a491c048882e7e424d407d32cba0b52d9ef2bf Bisecting: 0 revisions left to test after this (roughly 0 steps) [d824ec2a154677f63c56cc71ffe4578274f6e32e] mm: do not reclaim private data from pinned page testing commit d824ec2a154677f63c56cc71ffe4578274f6e32e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fd764fa5b979ff4fc22aa7541ec6d55f5f1e3c7d5d6cefd4d1ad4cd250a1a8b3 all runs: OK false negative chance: 0.000 # git bisect good d824ec2a154677f63c56cc71ffe4578274f6e32e 28a65b49eb53e172d23567005465019658bfdb4d is the first bad commit commit 28a65b49eb53e172d23567005465019658bfdb4d Author: Ryusuke Konishi Date: Thu Apr 27 10:15:26 2023 +0900 nilfs2: do not write dirty data after degenerating to read-only According to syzbot's report, mark_buffer_dirty() called from nilfs_segctor_do_construct() outputs a warning with some patterns after nilfs2 detects metadata corruption and degrades to read-only mode. After such read-only degeneration, page cache data may be cleared through nilfs_clear_dirty_page() which may also clear the uptodate flag for their buffer heads. However, even after the degeneration, log writes are still performed by unmount processing etc., which causes mark_buffer_dirty() to be called for buffer heads without the "uptodate" flag and causes the warning. Since any writes should not be done to a read-only file system in the first place, this fixes the warning in mark_buffer_dirty() by letting nilfs_segctor_do_construct() abort early if in read-only mode. This also changes the retry check of nilfs_segctor_write_out() to avoid unnecessary log write retries if it detects -EROFS that nilfs_segctor_do_construct() returned. Link: https://lkml.kernel.org/r/20230427011526.13457-1-konishi.ryusuke@gmail.com Signed-off-by: Ryusuke Konishi Tested-by: Ryusuke Konishi Reported-by: syzbot+2af3bc9585be7f23f290@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?extid=2af3bc9585be7f23f290 Cc: Signed-off-by: Andrew Morton fs/nilfs2/segment.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 540a22e0c2a106fb163558ffe15cdf44631e54e0b56942d89c34e350a226ac2d parent signature: fd764fa5b979ff4fc22aa7541ec6d55f5f1e3c7d5d6cefd4d1ad4cd250a1a8b3 revisions tested: 23, total time: 7h45m59.298951983s (build: 4h7m49.301933634s, test: 3h20m32.882738241s) first bad commit: 28a65b49eb53e172d23567005465019658bfdb4d nilfs2: do not write dirty data after degenerating to read-only recipients (to): ["akpm@linux-foundation.org" "konishi.ryusuke@gmail.com"] recipients (cc): [] crash: WARNING in mark_buffer_dirty ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4799 at fs/buffer.c:1130 mark_buffer_dirty+0xc3/0x180 fs/buffer.c:1158 Modules linked in: CPU: 1 PID: 4799 Comm: syz-executor.4 Not tainted 6.3.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:mark_buffer_dirty+0xc3/0x180 fs/buffer.c:1130 Code: 4d 85 f6 74 ec 48 89 df 4c 89 f6 31 d2 e8 75 b7 eb ff 48 89 df e8 ed 2f f9 ff 49 8b 3e be 04 00 00 00 5b 41 5e e9 7d e3 fe ff <0f> 0b e9 49 ff ff ff 0f 0b e9 57 ff ff ff 0f 0b e9 69 ff ff ff f3 RSP: 0018:ffffc90002d53b40 EFLAGS: 00010246 RAX: 0000000080000000 RBX: ffff88810c3aa690 RCX: 0000000000000001 RDX: afeafd6c4ced36b1 RSI: ffffffff82d6f5dc RDI: ffff88810c3aa690 RBP: ffff8881131f2000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888113166000 R13: 0000000000008000 R14: ffffc90002d53bb0 R15: ffff8881119076d8 FS: 00007fa0091106c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe6a225ec8 CR3: 0000000113394000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nilfs_palloc_commit_free_entry+0x12f/0x190 fs/nilfs2/alloc.c:626 nilfs_ifile_delete_inode+0xf5/0x140 fs/nilfs2/ifile.c:127 nilfs_evict_inode+0xc6/0x130 fs/nilfs2/inode.c:937 evict+0xc9/0x220 fs/inode.c:665 nilfs_add_nondir fs/nilfs2/namei.c:45 [inline] nilfs_create+0xda/0x120 fs/nilfs2/namei.c:92 lookup_open fs/namei.c:3492 [inline] open_last_lookups fs/namei.c:3560 [inline] path_openat+0x4eb/0xcd0 fs/namei.c:3788 do_filp_open+0xac/0x150 fs/namei.c:3818 do_sys_openat2+0x89/0x160 fs/open.c:1356 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x7c/0xa0 fs/open.c:1383 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa00847cb29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa0091100c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fa00859bf80 RCX: 00007fa00847cb29 RDX: 000000000000275a RSI: 0000000020006ac0 RDI: ffffffffffffff9c RBP: 00007fa0084c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fa00859bf80 R15: 00007ffeffb65128