ci2 starts bisection 2023-07-14 04:35:50.536069783 +0000 UTC m=+28.739982769 bisecting cause commit starting from 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c building syzkaller on d47e94ee5842166fa9b91e7affdeaa8dc4cfcd39 ensuring issue is reproducible on original commit 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c testing commit 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 21d037176e6e34ec89703900542ee63a78f71d2535424f698be9c959dcf50c19 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 207ac6beccb659be37043a55f18353b1e62fce25aad3ba5f3115585823bd4b18 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=3876 full=7644 leaves diff=1997 split chunks (needed=false): <1997> split chunk #0 of len 1997 into 5 parts testing without sub-chunk 1/5 testing commit 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9e1e33dd54d4a90eac83ac82631a1df5ee3a89305b327114eac189625bebf8a3 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 testing commit 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e43277d472f1e898d881bf1813610d85fd22734d27888dfb34f4058131a5598d all runs: OK testing without sub-chunk 3/5 testing commit 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 31888595fd3ecb38a332b05ff4de20864f8b2476caa7f09ae62eb001d76abe83 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 testing commit 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a0837eeb487782c9627104c3acaf41ce0b916aa18fc19b377483f0f10fab6039 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 testing commit 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 54bc053267b1cba2f56e16f503e13a24e9bd030b6eb2927c5139656dd6e836f3 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] the chunk can be dropped minimized to 400 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE DRM_DEBUG_MM DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_DP_AUX_BUS DRM_DP_AUX_CHARDEV DRM_FBDEV_EMULATION DRM_GEM_SHMEM_HELPER DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX DRM_VRAM_HELPER DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EEPROM_93CX6 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EVM_EXTRA_SMACK_XATTRS EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY EXTCON EXTCON_INTEL_CHT_WC F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_DEFERRED_IO FB_IO_HELPERS FB_NOTIFY FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_FOPS FB_SYS_HELPERS FB_SYS_HELPERS_DEFERRED FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FRONTSWAP FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENERIC_PHY GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GTP GUEST_PERF_EVENTS GVE HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO HAVE_KVM_EVENTFD HAVE_KVM_IRQCHIP HAVE_KVM_IRQFD HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_CMEDIA HID_CORSAIR HID_CP2112 HID_ELECOM HID_ELO HID_EMS_FF HID_GEMBIRD HID_GFRM HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MAGICMOUSE HID_MAYFLASH HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TWINHAN HID_UCLOGIC HID_UDRAW_PS3 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_TEST IOMMU_SVA IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_NF_SECURITY IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_IPV6 IP_VS_LBLC IP_VS_LBLCR IP_VS_LC IP_VS_MH IP_VS_NFCT IP_VS_PROTO_TCP IRQ_TIME_ACCOUNTING LAPB LCD_CLASS_DEVICE MAC802154 MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_VIPERBOARD MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_FWD_NETDEV NF_TABLES NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE VIDEO_DEV VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], 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: 4c2b3afa75b398a8a6d4810d324adc0da24d79ab559b59a3155a94239bc44c71 all runs: OK # git bisect start 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c 6995e2de6891c724bfeb2db33d7b87775f913ad1 Bisecting: 5431 revisions left to test after this (roughly 13 steps) [1b722407a13b7f8658d2e26917791f32805980a2] Merge tag 'drm-next-2023-06-29' of git://anongit.freedesktop.org/drm/drm testing commit 1b722407a13b7f8658d2e26917791f32805980a2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 73f1709fef4f44d4d8c303bf535a33dfd39ee9b9495603da7c73adcc02707792 all runs: OK # git bisect good 1b722407a13b7f8658d2e26917791f32805980a2 Bisecting: 2722 revisions left to test after this (roughly 11 steps) [7fffbc71075dcb733068d711c2593127cdce86f0] sysctl: set variable sysctl_mount_point storage-class-specifier to static testing commit 7fffbc71075dcb733068d711c2593127cdce86f0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 84306063d3900fdba6873610327af2b6040ff7fc8cee95340e783be7189b860f all runs: OK # git bisect good 7fffbc71075dcb733068d711c2593127cdce86f0 Bisecting: 1329 revisions left to test after this (roughly 10 steps) [e8069f5a8e3bdb5fdeeff895780529388592ee7a] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm testing commit e8069f5a8e3bdb5fdeeff895780529388592ee7a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3be0da9e2e95fc718dd0025b96859e275ca86435c3f32110d896c5ef243bc52c all runs: OK # git bisect good e8069f5a8e3bdb5fdeeff895780529388592ee7a Bisecting: 655 revisions left to test after this (roughly 9 steps) [ace1ba1c9038b30f29c5759bc4726bbed7748f15] Merge tag 'pwm/for-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm testing commit ace1ba1c9038b30f29c5759bc4726bbed7748f15 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc562d077fcf54b92d5c01e8dd296deb5abc2d35d9c538ea21e71f86e6b59428 all runs: OK # git bisect good ace1ba1c9038b30f29c5759bc4726bbed7748f15 Bisecting: 328 revisions left to test after this (roughly 8 steps) [1793eac148d0136f9afe877766b9d8f4458fbf21] Merge tag 'spi-fix-v6.5-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi testing commit 1793eac148d0136f9afe877766b9d8f4458fbf21 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 06df3a23485b11daac7a27976dc43fc6d8b0d46d44d9ba0990709e60f97750e3 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] # git bisect bad 1793eac148d0136f9afe877766b9d8f4458fbf21 Bisecting: 179 revisions left to test after this (roughly 7 steps) [6843306689aff3aea608e4d2630b2a5a0137f827] Merge tag 'net-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 6843306689aff3aea608e4d2630b2a5a0137f827 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2377fa8867a638f6102942dfcf6a5a3f4aca04d07ca430e4f0cf7a57d88eb30f all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] # git bisect bad 6843306689aff3aea608e4d2630b2a5a0137f827 Bisecting: 73 revisions left to test after this (roughly 6 steps) [6c8880fcaa5c45355179b759c1d11737775e31fc] selftests: mptcp: depend on SYN_COOKIES testing commit 6c8880fcaa5c45355179b759c1d11737775e31fc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee8a7da6c7f7ae036c855f007a15e33103349a4ab09526efe6555030d213839d all runs: OK # git bisect good 6c8880fcaa5c45355179b759c1d11737775e31fc Bisecting: 36 revisions left to test after this (roughly 5 steps) [c3355ea9d82fe6b1a4226c9a7d311f9c5715b456] f2fs: convert to use sbi directly testing commit c3355ea9d82fe6b1a4226c9a7d311f9c5715b456 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 72aee017fc35cc9859f9c043ee12a29418b076951656c74f3ccd64d878d0013a all runs: OK # git bisect good c3355ea9d82fe6b1a4226c9a7d311f9c5715b456 Bisecting: 18 revisions left to test after this (roughly 4 steps) [2d7d1e7ea321b0b2810eb00183e21332ee9c4b6f] xfs: AGI length should be bounds checked testing commit 2d7d1e7ea321b0b2810eb00183e21332ee9c4b6f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ec89f70832d437933acb934ed9ec77313adb469834cea3885ae0df661c48e57f all runs: OK # git bisect good 2d7d1e7ea321b0b2810eb00183e21332ee9c4b6f Bisecting: 9 revisions left to test after this (roughly 3 steps) [a6ec83786ab9f13f25fb18166dee908845713a95] f2fs: fix to do sanity check on direct node in truncate_dnode() testing commit a6ec83786ab9f13f25fb18166dee908845713a95 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 28e847bf671c3e4eeffa375e451bf6efe055ce5187ab09094b0dc1dbba32a419 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] # git bisect bad a6ec83786ab9f13f25fb18166dee908845713a95 Bisecting: 4 revisions left to test after this (roughly 2 steps) [cf2423a7555c4b012576c7282fb495ce739d50d4] f2fs: remove unneeded page uptodate check/set testing commit cf2423a7555c4b012576c7282fb495ce739d50d4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 57bed7a4516313682853b98d435b4be745f4c0d92047c94098e6f066f9a75fad all runs: OK # git bisect good cf2423a7555c4b012576c7282fb495ce739d50d4 Bisecting: 2 revisions left to test after this (roughly 1 step) [0135c482fa97e2fd8245cb462784112a00ed1211] f2fs: fix error path handling in truncate_dnode() testing commit 0135c482fa97e2fd8245cb462784112a00ed1211 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e6f9e97fd003c4f6ab000d8cffd3e125b9b4b2419b2fec7c4cf39333e44a3b42 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] # git bisect bad 0135c482fa97e2fd8245cb462784112a00ed1211 Bisecting: 0 revisions left to test after this (roughly 0 steps) [5eda1ad1aaffdfebdecf7a164e586060a210f74f] f2fs: fix deadlock in i_xattr_sem and inode page lock testing commit 5eda1ad1aaffdfebdecf7a164e586060a210f74f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b27b69653f7dfbc9233227e3c08d7fe18e7bb79525be1c74fc55fee19fc9dbe6 all runs: crashed: possible deadlock in f2fs_getxattr representative crash: possible deadlock in f2fs_getxattr, types: [LOCKDEP] # git bisect bad 5eda1ad1aaffdfebdecf7a164e586060a210f74f 5eda1ad1aaffdfebdecf7a164e586060a210f74f is the first bad commit commit 5eda1ad1aaffdfebdecf7a164e586060a210f74f Author: Jaegeuk Kim Date: Wed Jun 28 01:00:56 2023 -0700 f2fs: fix deadlock in i_xattr_sem and inode page lock Thread #1: [122554.641906][ T92] f2fs_getxattr+0xd4/0x5fc -> waiting for f2fs_down_read(&F2FS_I(inode)->i_xattr_sem); [122554.641927][ T92] __f2fs_get_acl+0x50/0x284 [122554.641948][ T92] f2fs_init_acl+0x84/0x54c [122554.641969][ T92] f2fs_init_inode_metadata+0x460/0x5f0 [122554.641990][ T92] f2fs_add_inline_entry+0x11c/0x350 -> Locked dir->inode_page by f2fs_get_node_page() [122554.642009][ T92] f2fs_do_add_link+0x100/0x1e4 [122554.642025][ T92] f2fs_create+0xf4/0x22c [122554.642047][ T92] vfs_create+0x130/0x1f4 Thread #2: [123996.386358][ T92] __get_node_page+0x8c/0x504 -> waiting for dir->inode_page lock [123996.386383][ T92] read_all_xattrs+0x11c/0x1f4 [123996.386405][ T92] __f2fs_setxattr+0xcc/0x528 [123996.386424][ T92] f2fs_setxattr+0x158/0x1f4 -> f2fs_down_write(&F2FS_I(inode)->i_xattr_sem); [123996.386443][ T92] __f2fs_set_acl+0x328/0x430 [123996.386618][ T92] f2fs_set_acl+0x38/0x50 [123996.386642][ T92] posix_acl_chmod+0xc8/0x1c8 [123996.386669][ T92] f2fs_setattr+0x5e0/0x6bc [123996.386689][ T92] notify_change+0x4d8/0x580 [123996.386717][ T92] chmod_common+0xd8/0x184 [123996.386748][ T92] do_fchmodat+0x60/0x124 [123996.386766][ T92] __arm64_sys_fchmodat+0x28/0x3c Cc: Fixes: 27161f13e3c3 "f2fs: avoid race in between read xattr & write xattr" Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim fs/f2fs/dir.c | 9 ++++++++- fs/f2fs/xattr.c | 6 ++++-- 2 files changed, 12 insertions(+), 3 deletions(-) culprit signature: b27b69653f7dfbc9233227e3c08d7fe18e7bb79525be1c74fc55fee19fc9dbe6 parent signature: 57bed7a4516313682853b98d435b4be745f4c0d92047c94098e6f066f9a75fad revisions tested: 21, total time: 10h34m43.621034047s (build: 7h24m18.050465428s, test: 2h17m26.089473263s) first bad commit: 5eda1ad1aaffdfebdecf7a164e586060a210f74f f2fs: fix deadlock in i_xattr_sem and inode page lock recipients (to): ["chao@kernel.org" "jaegeuk@kernel.org"] recipients (cc): [] crash: possible deadlock in f2fs_getxattr F2FS-fs (loop0): Invalid log_blocksize (268), supports only 12 F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop0): Found nat_bits in checkpoint F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 ====================================================== WARNING: possible circular locking dependency detected 6.4.0-rc1-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/2512 is trying to acquire lock: ffff88817cd51860 (&fi->i_xattr_sem){.+.+}-{3:3}, at: f2fs_down_read fs/f2fs/f2fs.h:2108 [inline] ffff88817cd51860 (&fi->i_xattr_sem){.+.+}-{3:3}, at: f2fs_getxattr+0x63/0x6c0 fs/f2fs/xattr.c:532 but task is already holding lock: ffff88817ce10d70 (&fi->i_sem){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2133 [inline] ffff88817ce10d70 (&fi->i_sem){+.+.}-{3:3}, at: f2fs_do_tmpfile+0x20/0xa0 fs/f2fs/dir.c:838 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&fi->i_sem){+.+.}-{3:3}: down_write+0x29/0xb0 kernel/locking/rwsem.c:1573 f2fs_down_write fs/f2fs/f2fs.h:2133 [inline] f2fs_add_inline_entry+0x134/0x270 fs/f2fs/inline.c:644 f2fs_add_dentry fs/f2fs/dir.c:784 [inline] f2fs_do_add_link+0x1a9/0x2b0 fs/f2fs/dir.c:827 f2fs_add_link fs/f2fs/f2fs.h:3555 [inline] f2fs_create+0xe9/0x180 fs/f2fs/namei.c:377 lookup_open fs/namei.c:3492 [inline] open_last_lookups fs/namei.c:3560 [inline] path_openat+0x4f7/0xd00 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 -> #0 (&fi->i_xattr_sem){.+.+}-{3:3}: check_prev_add kernel/locking/lockdep.c:3108 [inline] check_prevs_add kernel/locking/lockdep.c:3227 [inline] validate_chain kernel/locking/lockdep.c:3842 [inline] __lock_acquire+0x146c/0x2880 kernel/locking/lockdep.c:5074 lock_acquire+0xea/0x260 kernel/locking/lockdep.c:5691 down_read+0x2c/0x40 kernel/locking/rwsem.c:1520 f2fs_down_read fs/f2fs/f2fs.h:2108 [inline] f2fs_getxattr+0x63/0x6c0 fs/f2fs/xattr.c:532 __f2fs_get_acl+0x39/0x2a0 fs/f2fs/acl.c:179 f2fs_acl_create fs/f2fs/acl.c:377 [inline] f2fs_init_acl+0x3b/0x340 fs/f2fs/acl.c:420 f2fs_init_inode_metadata+0x29b/0x470 fs/f2fs/dir.c:558 f2fs_do_tmpfile+0x32/0xa0 fs/f2fs/dir.c:839 __f2fs_tmpfile+0xdf/0x1c0 fs/f2fs/namei.c:884 f2fs_ioc_start_atomic_write+0x1f2/0x300 fs/f2fs/file.c:2104 __f2fs_ioctl+0x1660/0x31f0 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+0x41/0x90 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(&fi->i_sem); lock(&fi->i_xattr_sem); lock(&fi->i_sem); rlock(&fi->i_xattr_sem); *** DEADLOCK *** 5 locks held by syz-executor.0/2512: #0: ffff888108e82450 (sb_writers#14){.+.+}-{0:0}, at: mnt_want_write_file+0x16/0x60 fs/namespace.c:438 #1: ffff88817ce10150 (&sb->s_type->i_mutex_key#20){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline] #1: ffff88817ce10150 (&sb->s_type->i_mutex_key#20){+.+.}-{3:3}, at: f2fs_ioc_start_atomic_write+0x8c/0x300 fs/f2fs/file.c:2065 #2: ffff88817ce10728 (&fi->i_gc_rwsem[WRITE]){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2133 [inline] #2: ffff88817ce10728 (&fi->i_gc_rwsem[WRITE]){+.+.}-{3:3}, at: f2fs_ioc_start_atomic_write+0x138/0x300 fs/f2fs/file.c:2079 #3: ffff88810e2fa3a8 (&sbi->cp_rwsem){.+.+}-{3:3}, at: f2fs_down_read fs/f2fs/f2fs.h:2108 [inline] #3: ffff88810e2fa3a8 (&sbi->cp_rwsem){.+.+}-{3:3}, at: f2fs_lock_op fs/f2fs/f2fs.h:2151 [inline] #3: ffff88810e2fa3a8 (&sbi->cp_rwsem){.+.+}-{3:3}, at: __f2fs_tmpfile+0xc5/0x1c0 fs/f2fs/namei.c:879 #4: ffff88817ce10d70 (&fi->i_sem){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2133 [inline] #4: ffff88817ce10d70 (&fi->i_sem){+.+.}-{3:3}, at: f2fs_do_tmpfile+0x20/0xa0 fs/f2fs/dir.c:838 stack backtrace: CPU: 0 PID: 2512 Comm: syz-executor.0 Not tainted 6.4.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xe0 lib/dump_stack.c:106 print_circular_bug+0x314/0x350 kernel/locking/lockdep.c:2066 check_noncircular+0x106/0x110 kernel/locking/lockdep.c:2188 check_prev_add kernel/locking/lockdep.c:3108 [inline] check_prevs_add kernel/locking/lockdep.c:3227 [inline] validate_chain kernel/locking/lockdep.c:3842 [inline] __lock_acquire+0x146c/0x2880 kernel/locking/lockdep.c:5074 lock_acquire+0xea/0x260 kernel/locking/lockdep.c:5691 down_read+0x2c/0x40 kernel/locking/rwsem.c:1520 f2fs_down_read fs/f2fs/f2fs.h:2108 [inline] f2fs_getxattr+0x63/0x6c0 fs/f2fs/xattr.c:532 __f2fs_get_acl+0x39/0x2a0 fs/f2fs/acl.c:179 f2fs_acl_create fs/f2fs/acl.c:377 [inline] f2fs_init_acl+0x3b/0x340 fs/f2fs/acl.c:420 f2fs_init_inode_metadata+0x29b/0x470 fs/f2fs/dir.c:558 f2fs_do_tmpfile+0x32/0xa0 fs/f2fs/dir.c:839 __f2fs_tmpfile+0xdf/0x1c0 fs/f2fs/namei.c:884 f2fs_ioc_start_atomic_write+0x1f2/0x300 fs/f2fs/file.c:2104 __f2fs_ioctl+0x1660/0x31f0 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+0x41/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f778867cb29 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:00007f77894720c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f778879bf80 RCX: 00007f778867cb29 RDX: 0000000000000000 RSI: 000000000000f501 RDI: 0000000000000004 RBP: 00007f77886c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f778879bf80 R15: 00007ffdc2b54178