ci2 starts bisection 2023-09-02 07:30:51.287682218 +0000 UTC m=+137362.170053508 bisecting fixing commit since e84a4e368abe42cf359fe237f0238820859d5044 building syzkaller on 79782afcff30fd0c0af8c2725d508b2c7150f3ed ensuring issue is reproducible on original commit e84a4e368abe42cf359fe237f0238820859d5044 testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 01becedb805807bfc33b301494570d4a2f77ac0225bb796a7d3b42d76cc3d0e0 run #0: crashed: possible deadlock in page_cache_ra_unbounded run #1: crashed: possible deadlock in page_cache_ra_unbounded run #2: crashed: possible deadlock in do_journal_begin_r run #3: crashed: possible deadlock in do_journal_begin_r run #4: crashed: possible deadlock in page_cache_ra_unbounded run #5: crashed: possible deadlock in page_cache_ra_unbounded run #6: crashed: possible deadlock in page_cache_ra_unbounded run #7: crashed: possible deadlock in page_cache_ra_unbounded run #8: crashed: possible deadlock in page_cache_ra_unbounded run #9: crashed: possible deadlock in page_cache_ra_unbounded run #10: crashed: possible deadlock in page_cache_ra_unbounded run #11: crashed: possible deadlock in do_journal_begin_r run #12: crashed: possible deadlock in page_cache_ra_unbounded run #13: crashed: possible deadlock in do_journal_begin_r run #14: crashed: possible deadlock in page_cache_ra_unbounded run #15: crashed: possible deadlock in page_cache_ra_unbounded run #16: crashed: possible deadlock in page_cache_ra_unbounded run #17: crashed: possible deadlock in page_cache_ra_unbounded run #18: crashed: possible deadlock in do_journal_begin_r run #19: crashed: possible deadlock in page_cache_ra_unbounded representative crash: possible deadlock in page_cache_ra_unbounded, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bfcaa4b308c3bb77f9bda452db1d96a11e99de93a9463a2ec2c4df04ee7c8de0 all runs: crashed: possible deadlock in page_cache_ra_unbounded representative crash: possible deadlock in page_cache_ra_unbounded, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed kconfig minimization: base=3820 full=7523 leaves diff=1995 split chunks (needed=false): <1995> split chunk #0 of len 1995 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eac93e93d9e9edbe3a082d2e02af85820961720fd53a612bbcdba53ebb4150ca all runs: crashed: possible deadlock in page_cache_ra_unbounded representative crash: possible deadlock in page_cache_ra_unbounded, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 34c511d5baef8146b25987ac6d63ca14446c645566cb5c766401728b06b7ba16 run #0: crashed: possible deadlock in page_cache_ra_unbounded run #1: crashed: possible deadlock in page_cache_ra_unbounded run #2: crashed: possible deadlock in page_cache_ra_unbounded run #3: crashed: possible deadlock in do_journal_begin_r run #4: crashed: possible deadlock in page_cache_ra_unbounded run #5: crashed: possible deadlock in page_cache_ra_unbounded run #6: crashed: possible deadlock in page_cache_ra_unbounded run #7: crashed: possible deadlock in page_cache_ra_unbounded run #8: crashed: possible deadlock in do_journal_begin_r run #9: crashed: possible deadlock in page_cache_ra_unbounded representative crash: possible deadlock in page_cache_ra_unbounded, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 765b2ae005f8f717af096a1251782a7da405edf830e204f1c714e36be03ea216 all runs: crashed: possible deadlock in page_cache_ra_unbounded representative crash: possible deadlock in page_cache_ra_unbounded, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 49b409a923d8b92092c84114f5edcfb50ecca73159bc1046bfd64b42d080fe86 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 28f11338744ccc183947fb05d0aea3256303a04510fe17efc2b1a1b9ac0408b7 all runs: crashed: possible deadlock in page_cache_ra_unbounded representative crash: possible deadlock in page_cache_ra_unbounded, types: [LOCKDEP] the chunk can be dropped minimized to 399 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_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_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 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 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_COMMON 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_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 STAGING_MEDIA 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_CONFIGFS_F_LB_SS 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 [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing current HEAD c2cbfe5f51227dfe6ef7be013f0d56a32c040faa testing commit c2cbfe5f51227dfe6ef7be013f0d56a32c040faa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 484d0737f49cfc60b1e97f564787f5d2e341a582506b2722bc97abc14de99da5 all runs: crashed: possible deadlock in page_cache_ra_unbounded representative crash: possible deadlock in page_cache_ra_unbounded, types: [LOCKDEP] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 2h5m22.368624164s (build: 48m13.985050306s, test: 31m25.189965463s) crash still not fixed or there were kernel test errors commit msg: Linux 6.1.51 crash: possible deadlock in page_cache_ra_unbounded REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop0): Using r5 hash to sort names REISERFS (device loop0): using 3.5.x disk format REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ====================================================== WARNING: possible circular locking dependency detected 6.1.51-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/2087 is trying to acquire lock: ffff88810aacf090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock_nested+0x1b/0x40 fs/reiserfs/lock.c:78 but task is already holding lock: ffff88810c65f230 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] ffff88810c65f230 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x59/0x230 mm/readahead.c:226 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (mapping.invalidate_lock#3){.+.+}-{3:3}: down_read+0x46/0x430 kernel/locking/rwsem.c:1520 filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] page_cache_ra_unbounded+0x59/0x230 mm/readahead.c:226 do_sync_mmap_readahead+0x134/0x260 filemap_fault+0x1c5/0x660 mm/filemap.c:3136 __do_fault+0x38/0x100 mm/memory.c:4231 do_shared_fault mm/memory.c:4637 [inline] do_fault mm/memory.c:4715 [inline] handle_pte_fault mm/memory.c:4983 [inline] __handle_mm_fault mm/memory.c:5125 [inline] handle_mm_fault+0xcfc/0x1890 mm/memory.c:5246 do_user_addr_fault arch/x86/mm/fault.c:1380 [inline] handle_page_fault arch/x86/mm/fault.c:1471 [inline] exc_page_fault+0x26b/0x580 arch/x86/mm/fault.c:1527 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 __put_user_nocheck_4+0x3/0x11 reiserfs_ioctl+0x8a/0x130 fs/reiserfs/ioctl.c:96 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0x6a/0xb0 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #0 (&sbi->lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3824 [inline] __lock_acquire+0x1464/0x2830 kernel/locking/lockdep.c:5048 lock_acquire+0xe3/0x270 kernel/locking/lockdep.c:5661 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x99/0x970 kernel/locking/mutex.c:747 reiserfs_write_lock_nested+0x1b/0x40 fs/reiserfs/lock.c:78 reiserfs_cond_resched fs/reiserfs/reiserfs.h:849 [inline] search_by_key+0x395/0x1020 fs/reiserfs/stree.c:712 search_for_position_by_key+0xc8/0x2a0 fs/reiserfs/stree.c:874 _get_block_create_0+0x142/0x6c0 fs/reiserfs/inode.c:305 reiserfs_get_block+0x1c4/0x1320 fs/reiserfs/inode.c:695 do_mpage_readpage+0x272/0x760 fs/mpage.c:208 mpage_readahead+0x13a/0x230 fs/mpage.c:361 read_pages+0x7d/0x1f0 mm/readahead.c:161 page_cache_ra_unbounded+0x1d6/0x230 mm/readahead.c:270 do_sync_mmap_readahead+0x134/0x260 filemap_fault+0x1c5/0x660 mm/filemap.c:3136 __do_fault+0x38/0x100 mm/memory.c:4231 do_shared_fault mm/memory.c:4637 [inline] do_fault mm/memory.c:4715 [inline] handle_pte_fault mm/memory.c:4983 [inline] __handle_mm_fault mm/memory.c:5125 [inline] handle_mm_fault+0xcfc/0x1890 mm/memory.c:5246 do_user_addr_fault arch/x86/mm/fault.c:1380 [inline] handle_page_fault arch/x86/mm/fault.c:1471 [inline] exc_page_fault+0x26b/0x580 arch/x86/mm/fault.c:1527 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 __put_user_nocheck_4+0x3/0x11 reiserfs_ioctl+0x8a/0x130 fs/reiserfs/ioctl.c:96 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0x6a/0xb0 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(mapping.invalidate_lock#3); lock(&sbi->lock); lock(mapping.invalidate_lock#3); lock(&sbi->lock); *** DEADLOCK *** 1 lock held by syz-executor.0/2087: #0: ffff88810c65f230 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #0: ffff88810c65f230 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x59/0x230 mm/readahead.c:226 stack backtrace: CPU: 1 PID: 2087 Comm: syz-executor.0 Not tainted 6.1.51-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x89/0xd7 lib/dump_stack.c:106 print_circular_bug+0x2c5/0x300 kernel/locking/lockdep.c:2048 check_noncircular+0x106/0x110 kernel/locking/lockdep.c:2170 check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3824 [inline] __lock_acquire+0x1464/0x2830 kernel/locking/lockdep.c:5048 lock_acquire+0xe3/0x270 kernel/locking/lockdep.c:5661 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x99/0x970 kernel/locking/mutex.c:747 reiserfs_write_lock_nested+0x1b/0x40 fs/reiserfs/lock.c:78 reiserfs_cond_resched fs/reiserfs/reiserfs.h:849 [inline] search_by_key+0x395/0x1020 fs/reiserfs/stree.c:712 search_for_position_by_key+0xc8/0x2a0 fs/reiserfs/stree.c:874 _get_block_create_0+0x142/0x6c0 fs/reiserfs/inode.c:305 reiserfs_get_block+0x1c4/0x1320 fs/reiserfs/inode.c:695 do_mpage_readpage+0x272/0x760 fs/mpage.c:208 mpage_readahead+0x13a/0x230 fs/mpage.c:361 read_pages+0x7d/0x1f0 mm/readahead.c:161 page_cache_ra_unbounded+0x1d6/0x230 mm/readahead.c:270 do_sync_mmap_readahead+0x134/0x260 filemap_fault+0x1c5/0x660 mm/filemap.c:3136 __do_fault+0x38/0x100 mm/memory.c:4231 do_shared_fault mm/memory.c:4637 [inline] do_fault mm/memory.c:4715 [inline] handle_pte_fault mm/memory.c:4983 [inline] __handle_mm_fault mm/memory.c:5125 [inline] handle_mm_fault+0xcfc/0x1890 mm/memory.c:5246 do_user_addr_fault arch/x86/mm/fault.c:1380 [inline] handle_page_fault arch/x86/mm/fault.c:1471 [inline] exc_page_fault+0x26b/0x580 arch/x86/mm/fault.c:1527 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:__put_user_nocheck_4+0x3/0x11 Code: 00 00 48 39 d9 73 54 0f 01 cb 66 89 01 31 c9 0f 01 ca c3 0f 1f 44 00 00 48 bb fd ef ff ff ff 7f 00 00 48 39 d9 73 34 0f 01 cb <89> 01 31 c9 0f 01 ca c3 66 0f 1f 44 00 00 48 bb f9 ef ff ff ff 7f RSP: 0018:ffffc90002db3ec0 EFLAGS: 00050297 RAX: 0000000000000002 RBX: 00007fffffffeffd RCX: 0000000020000000 RDX: 00000000999722b0 RSI: 0000000000000060 RDI: ffffffff83026741 RBP: 0000000080087601 R08: ffff8881017954c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000001000000000 R12: ffff888100ed5a00 R13: 0000000000000005 R14: ffff88810c65ef40 R15: 0000000020000000 reiserfs_ioctl+0x8a/0x130 fs/reiserfs/ioctl.c:96 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0x6a/0xb0 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fad97c7cb29 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:00007fad98a1a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fad97d9bf80 RCX: 00007fad97c7cb29 RDX: 0000000020000000 RSI: 0000000080087601 RDI: 0000000000000005 RBP: 00007fad97cc847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fad97d9bf80 R15: 00007ffc144cb138 syz-executor.0 (2087) used greatest stack depth: 10448 bytes left ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 48 39 d9 cmp %rbx,%rcx 5: 73 54 jae 0x5b 7: 0f 01 cb stac a: 66 89 01 mov %ax,(%rcx) d: 31 c9 xor %ecx,%ecx f: 0f 01 ca clac 12: c3 ret 13: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 18: 48 bb fd ef ff ff ff movabs $0x7fffffffeffd,%rbx 1f: 7f 00 00 22: 48 39 d9 cmp %rbx,%rcx 25: 73 34 jae 0x5b 27: 0f 01 cb stac * 2a: 89 01 mov %eax,(%rcx) <-- trapping instruction 2c: 31 c9 xor %ecx,%ecx 2e: 0f 01 ca clac 31: c3 ret 32: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 38: 48 rex.W 39: bb f9 ef ff ff mov $0xffffeff9,%ebx 3e: ff (bad) 3f: 7f .byte 0x7f