ci2 starts bisection 2024-01-23 20:51:10.539500472 +0000 UTC m=+13480.593483625 bisecting fixing commit since 8fd7f44624538675abadc73f5a44e95016964d22 building syzkaller on 9bd8dcda8c7c494d59bd3132a668f4784ea835c6 ensuring issue is reproducible on original commit 8fd7f44624538675abadc73f5a44e95016964d22 testing commit 8fd7f44624538675abadc73f5a44e95016964d22 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8436b5e812cc32961f3780c0faa4fb59dbf96fbc6ac3a45b5de2900122d335cf all runs: crashed: INFO: task hung in gfs2_gl_hash_clear representative crash: INFO: task hung in gfs2_gl_hash_clear, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit 8fd7f44624538675abadc73f5a44e95016964d22 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fb8e00d405880bcc9c515d4db88f790cea8f212d592a6c3024d42a7b20349372 all runs: crashed: INFO: task hung in gfs2_gl_hash_clear representative crash: INFO: task hung in gfs2_gl_hash_clear, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=3820 full=7527 leaves diff=1997 split chunks (needed=false): <1997> split chunk #0 of len 1997 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit 8fd7f44624538675abadc73f5a44e95016964d22 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8f752142459c2ff559417d8c088016919ed023191b4077efba6bee79b021e6e2 all runs: crashed: INFO: task hung in gfs2_gl_hash_clear representative crash: INFO: task hung in gfs2_gl_hash_clear, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 8fd7f44624538675abadc73f5a44e95016964d22 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 20182488befe6bb72a5c6d6e8edc4d11125e36f3a5c05f0d881c1623ceab772a all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 8fd7f44624538675abadc73f5a44e95016964d22 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b007fee8f2693df8970d36e9ff1520b1df112d7dfb649a40e9c831b77ac87bce all runs: crashed: INFO: task hung in gfs2_gl_hash_clear representative crash: INFO: task hung in gfs2_gl_hash_clear, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 8fd7f44624538675abadc73f5a44e95016964d22 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8dfb8d61facc4553860a6d61d996d38e21fb3a9da3e5149822fa6b97bda5d616 all runs: crashed: INFO: task hung in gfs2_gl_hash_clear representative crash: INFO: task hung in gfs2_gl_hash_clear, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit 8fd7f44624538675abadc73f5a44e95016964d22 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bf5c2e2406089cc405b2517d6c23772cc33597aca5dd75f2a8a354916c3fcb87 run #0: crashed: INFO: task hung in corrupted run #1: crashed: INFO: task hung in gfs2_gl_hash_clear run #2: crashed: INFO: task hung in gfs2_gl_hash_clear run #3: crashed: INFO: task hung in gfs2_gl_hash_clear run #4: crashed: INFO: task hung in gfs2_gl_hash_clear run #5: crashed: INFO: task hung in gfs2_gl_hash_clear run #6: crashed: INFO: task hung in gfs2_gl_hash_clear run #7: crashed: INFO: task hung in gfs2_gl_hash_clear run #8: crashed: INFO: task hung in gfs2_gl_hash_clear run #9: crashed: INFO: task hung in gfs2_gl_hash_clear representative crash: INFO: task hung in corrupted, types: [HANG] 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_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_NOMODESET 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_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 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_CMDLINE FB_DEFERRED_IO FB_NOTIFY FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_FOPS 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_SOC_PMIC_CHTWC INTERVAL_TREE 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_CLUSTERIP 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_NQ IP_VS_OVF IP_VS_PE_SIP IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_TCP IP_VS_PROTO_UDP 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 [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed determining the merge base between 8fd7f44624538675abadc73f5a44e95016964d22 and 7ed2632ec7d72e926b9e8bcc9ad1bb0cd37274bf 830b3c68c1fb1e9176028d02ef86f3cf76aa2476/Linux 6.1 is a merge base, check if it has the bug testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6c0cd955c6aec430508ba2fbb6a03b9788f6e52295183e22f9bf38167d6394d9 all runs: crashed: INFO: task hung in gfs2_gl_hash_clear representative crash: INFO: task hung in gfs2_gl_hash_clear, types: [HANG] testing current HEAD 7ed2632ec7d72e926b9e8bcc9ad1bb0cd37274bf testing commit 7ed2632ec7d72e926b9e8bcc9ad1bb0cd37274bf gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 53ee2b08eb61daf11d44e7e854a05f5fca036a5a62ec60b9207a2e1a79e23373 all runs: OK false negative chance: 0.000 # git bisect start 7ed2632ec7d72e926b9e8bcc9ad1bb0cd37274bf 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 Bisecting: 54378 revisions left to test after this (roughly 16 steps) [1b722407a13b7f8658d2e26917791f32805980a2] Merge tag 'drm-next-2023-06-29' of git://anongit.freedesktop.org/drm/drm determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 1b722407a13b7f8658d2e26917791f32805980a2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0ff7eddd5ef3d69df05bcc9c6d94e52d8bb36c53b58ced5617b418fe5e1dd7dc all runs: crashed: INFO: task hung in gfs2_gl_hash_clear representative crash: INFO: task hung in gfs2_gl_hash_clear, types: [HANG] # git bisect good 1b722407a13b7f8658d2e26917791f32805980a2 Bisecting: 27621 revisions left to test after this (roughly 15 steps) [5a6a09e97199d6600d31383055f9d43fbbcbe86f] Merge tag 'cgroup-for-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 5a6a09e97199d6600d31383055f9d43fbbcbe86f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d83df0885da4846f2500e0f53d5d03a06f114e27deb8e9f6a08e57019b5c3636 all runs: crashed: INFO: task hung in gfs2_gl_hash_clear representative crash: INFO: task hung in gfs2_gl_hash_clear, types: [HANG] # git bisect good 5a6a09e97199d6600d31383055f9d43fbbcbe86f Bisecting: 13819 revisions left to test after this (roughly 14 steps) [112345a4046838d97a2bd030a98297ff7e2c9f2d] Merge 6.7-rc5 into usb-next determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 112345a4046838d97a2bd030a98297ff7e2c9f2d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1c35c7bb2fba0a933faaef3fbc637592e88c852b31a017b3dcd68ed32aae200f all runs: crashed: invalid opcode in gfs2_quota_cleanup representative crash: invalid opcode in gfs2_quota_cleanup, types: [UNKNOWN] # git bisect good 112345a4046838d97a2bd030a98297ff7e2c9f2d Bisecting: 6930 revisions left to test after this (roughly 13 steps) [22d29f1112c85c1ad519a8c0403f7f7289cf060c] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 22d29f1112c85c1ad519a8c0403f7f7289cf060c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc62bcbb3acdb9f662b4fa89bc91c56142b584a7fb017b8a0dc10879b262d76a all runs: OK false negative chance: 0.000 # git bisect bad 22d29f1112c85c1ad519a8c0403f7f7289cf060c Bisecting: 3419 revisions left to test after this (roughly 12 steps) [78273df7f646f8daf2604ec714bea0897cd03aae] Merge tag 'header_cleanup-2024-01-10' of https://evilpiepirate.org/git/bcachefs determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 78273df7f646f8daf2604ec714bea0897cd03aae gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a34c2b8a4d78edf5274fb7900d3a101298ba152714673901ac4e4ba23a97d1d5 all runs: OK false negative chance: 0.000 # git bisect bad 78273df7f646f8daf2604ec714bea0897cd03aae Bisecting: 1700 revisions left to test after this (roughly 11 steps) [fb46e22a9e3863e08aef8815df9f17d0f4b9aede] Merge tag 'mm-stable-2024-01-08-15-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit fb46e22a9e3863e08aef8815df9f17d0f4b9aede gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a6e06dcb74492f625a89a555ea73641e04631577e0329b9717ec16686fafd828 all runs: crashed: invalid opcode in gfs2_quota_cleanup representative crash: invalid opcode in gfs2_quota_cleanup, types: [UNKNOWN] # git bisect good fb46e22a9e3863e08aef8815df9f17d0f4b9aede Bisecting: 792 revisions left to test after this (roughly 10 steps) [12958e9c4c8e93ef694c10960c78453edf21526e] Merge tag 'xfs-6.8-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 12958e9c4c8e93ef694c10960c78453edf21526e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 763e6e6be9b9e90492f43ddc36197c5d3ca2887b5187b1ea0b2880b1c0108be7 all runs: crashed: invalid opcode in gfs2_quota_cleanup representative crash: invalid opcode in gfs2_quota_cleanup, types: [UNKNOWN] # git bisect good 12958e9c4c8e93ef694c10960c78453edf21526e Bisecting: 342 revisions left to test after this (roughly 9 steps) [0cb552aa97843f24549ce808883494138471c16b] Merge tag 'v6.8-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 determine whether the revision contains the guilty commit revision 5a6a09e97199d6600d31383055f9d43fbbcbe86f crashed and is reachable testing commit 0cb552aa97843f24549ce808883494138471c16b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bdc99819787f67b587e1c0e3cca62311185bbcff6c3b24d2918d4c0b23c5ed20 all runs: OK false negative chance: 0.000 # git bisect bad 0cb552aa97843f24549ce808883494138471c16b Bisecting: 226 revisions left to test after this (roughly 8 steps) [49f4810356f7d4294ad63dc70fe3c65ca3b8ada9] Merge tag 'nfsd-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 49f4810356f7d4294ad63dc70fe3c65ca3b8ada9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ed42d8a4fe09be0b1cfbb0e4f74e0f37d598b7391a5bce12f3b4bc502ba027c2 all runs: OK false negative chance: 0.000 # git bisect bad 49f4810356f7d4294ad63dc70fe3c65ca3b8ada9 Bisecting: 113 revisions left to test after this (roughly 7 steps) [bfed9a92940bae1fbdaad80b82562ce4e122434a] Merge tag 'gfs2-v6.7-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 determine whether the revision contains the guilty commit revision 5a6a09e97199d6600d31383055f9d43fbbcbe86f crashed and is reachable testing commit bfed9a92940bae1fbdaad80b82562ce4e122434a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e0dc3efe31b1253330745b6e278b207dee78e7d534c08c722f3a0c6a5d5c5af5 all runs: OK false negative chance: 0.000 # git bisect bad bfed9a92940bae1fbdaad80b82562ce4e122434a Bisecting: 54 revisions left to test after this (roughly 6 steps) [b30aa1c176ba86a035d40c2d2f12dc0e0f687e0e] btrfs: tests: fix error messages for test case 4 of extent map tests determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit b30aa1c176ba86a035d40c2d2f12dc0e0f687e0e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 873f2644e71cdfa2e1bf2c7d171437910cf590ebcf8f80d0128ee5fadd52172e all runs: crashed: invalid opcode in gfs2_quota_cleanup representative crash: invalid opcode in gfs2_quota_cleanup, types: [UNKNOWN] # git bisect good b30aa1c176ba86a035d40c2d2f12dc0e0f687e0e Bisecting: 27 revisions left to test after this (roughly 5 steps) [5aeb15c8ca0d0cbd30e21391d2c7e25554f1e65e] btrfs: factor out block mapping for DUP profiles determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 5aeb15c8ca0d0cbd30e21391d2c7e25554f1e65e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b3a1f42d2834fbe72765babee3cfe3f240481c693fa61befb91e1e3b10c66682 all runs: crashed: invalid opcode in gfs2_quota_cleanup representative crash: invalid opcode in gfs2_quota_cleanup, types: [UNKNOWN] # git bisect good 5aeb15c8ca0d0cbd30e21391d2c7e25554f1e65e Bisecting: 13 revisions left to test after this (roughly 4 steps) [76e7211ca129f6a9117ae88c020a4c1cafaa24cc] gfs2: Add missing set_freezable() for freezable kthread determine whether the revision contains the guilty commit revision 1b722407a13b7f8658d2e26917791f32805980a2 crashed and is reachable testing commit 76e7211ca129f6a9117ae88c020a4c1cafaa24cc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b5b02821d681a930f9144a8128844808aa35a000275a6bb1692186e9d65b3a93 all runs: OK false negative chance: 0.000 # git bisect bad 76e7211ca129f6a9117ae88c020a4c1cafaa24cc Bisecting: 6 revisions left to test after this (roughly 3 steps) [34d72246437155299dd08fd29277e6fa31081ea0] gfs2: d_obtain_alias(ERR_PTR(...)) will do the right thing determine whether the revision contains the guilty commit revision 1b722407a13b7f8658d2e26917791f32805980a2 crashed and is reachable testing commit 34d72246437155299dd08fd29277e6fa31081ea0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2174e46e4a5efb5964b72b39489b440875ef05b22d00b85ac4da4c2ed82babad all runs: OK false negative chance: 0.000 # git bisect bad 34d72246437155299dd08fd29277e6fa31081ea0 Bisecting: 3 revisions left to test after this (roughly 2 steps) [71733b4922007500ae259af9e96017080f5d36d9] gfs2: fix kernel BUG in gfs2_quota_cleanup determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 71733b4922007500ae259af9e96017080f5d36d9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6d81ee77c22bc5441ba804e98c049be81abedf363258176b5f71afe60e1769fe all runs: OK false negative chance: 0.000 # git bisect bad 71733b4922007500ae259af9e96017080f5d36d9 Bisecting: 0 revisions left to test after this (roughly 1 step) [1181f2d9fef7307b46850bc11e043f2180d636c1] gfs2: Fix inode_go_instantiate description determine whether the revision contains the guilty commit revision 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 crashed and is reachable testing commit 1181f2d9fef7307b46850bc11e043f2180d636c1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7dd0a32eeaf6eb31cb0e5503892b563fd38ab942409cccfde5dfe27ec1f99e72 all runs: crashed: invalid opcode in gfs2_quota_cleanup representative crash: invalid opcode in gfs2_quota_cleanup, types: [UNKNOWN] # git bisect good 1181f2d9fef7307b46850bc11e043f2180d636c1 71733b4922007500ae259af9e96017080f5d36d9 is the first bad commit commit 71733b4922007500ae259af9e96017080f5d36d9 Author: Edward Adam Davis Date: Sat Dec 2 17:25:49 2023 +0800 gfs2: fix kernel BUG in gfs2_quota_cleanup [Syz report] kernel BUG at fs/gfs2/quota.c:1508! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5060 Comm: syz-executor505 Not tainted 6.7.0-rc3-syzkaller-00134-g994d5c58e50e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:gfs2_quota_cleanup+0x6b5/0x6c0 fs/gfs2/quota.c:1508 Code: fe e9 cf fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 2d fe ff ff 4c 89 ef e8 b6 19 23 fe e9 20 fe ff ff e8 ec 11 c7 fd 90 <0f> 0b e8 84 9c 4f 07 0f 1f 40 00 66 0f 1f 00 55 41 57 41 56 41 54 RSP: 0018:ffffc9000409f9e0 EFLAGS: 00010293 RAX: ffffffff83c76854 RBX: 0000000000000002 RCX: ffff888026001dc0 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc9000409fb00 R08: ffffffff83c762b0 R09: 1ffff1100fd38015 R10: dffffc0000000000 R11: ffffed100fd38016 R12: dffffc0000000000 R13: ffff88807e9c0828 R14: ffff888014693580 R15: ffff88807e9c0000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f16d1bd70f8 CR3: 0000000027199000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_put_super+0x2e1/0x940 fs/gfs2/super.c:611 generic_shutdown_super+0x13a/0x2c0 fs/super.c:696 kill_block_super+0x44/0x90 fs/super.c:1667 deactivate_locked_super+0xc1/0x130 fs/super.c:484 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256 task_work_run+0x24a/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa34/0x2750 kernel/exit.c:871 do_group_exit+0x206/0x2c0 kernel/exit.c:1021 __do_sys_exit_group kernel/exit.c:1032 [inline] __se_sys_exit_group kernel/exit.c:1030 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1030 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b ... [pid 5060] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0) = 0 [pid 5060] exit_group(1) = ? ... [Analysis] When the task exits, it will execute cleanup_mnt() to recycle the mounted gfs2 file system, but it performs a system call fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0) before executing the task exit operation. This will execute the following kernel path to complete the setting of SDF_JOURNAL_LIVE for sd_flags: SYSCALL_DEFINE5(fsconfig, ..)-> vfs_fsconfig_locked()-> vfs_cmd_reconfigure()-> gfs2_reconfigure()-> gfs2_make_fs_rw()-> set_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags); [Fix] Add SDF_NORECOVERY check in gfs2_quota_cleanup() to avoid checking SDF_JOURNAL_LIVE on the path where gfs2 is being unmounted. Reported-and-tested-by: syzbot+3b6e67ac2b646da57862@syzkaller.appspotmail.com Fixes: f66af88e3321 ("gfs2: Stop using gfs2_make_fs_ro for withdraw") Signed-off-by: Edward Adam Davis Signed-off-by: Andreas Gruenbacher fs/gfs2/quota.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 6d81ee77c22bc5441ba804e98c049be81abedf363258176b5f71afe60e1769fe parent signature: 7dd0a32eeaf6eb31cb0e5503892b563fd38ab942409cccfde5dfe27ec1f99e72 revisions tested: 25, total time: 4h37m59.719851604s (build: 1h22m44.186861439s, test: 3h5m33.941178611s) first good commit: 71733b4922007500ae259af9e96017080f5d36d9 gfs2: fix kernel BUG in gfs2_quota_cleanup recipients (to): ["agruenba@redhat.com" "eadavis@qq.com" "syzbot+3b6e67ac2b646da57862@syzkaller.appspotmail.com"] recipients (cc): []