ci starts bisection 2023-08-02 01:16:50.454279624 +0000 UTC m=+34517.377529880 bisecting cause commit starting from a734662572708cf062e974f659ae50c24fc1ad17 building syzkaller on df07ffe8f9d561e9795b2dcf75a2af0bc1e7e9fa ensuring issue is reproducible on original commit a734662572708cf062e974f659ae50c24fc1ad17 testing commit a734662572708cf062e974f659ae50c24fc1ad17 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 55378f3d4cd7f7c29c591e0438d8a949aa89dcbb875a32c4bbf2ac6c74a7e91c all runs: crashed: general protection fault in gfs2_lookup_simple representative crash: general protection fault in gfs2_lookup_simple, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit a734662572708cf062e974f659ae50c24fc1ad17 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 862f77e931250912eaff24e4d14ba562aeac7b27be3e3a1204af6ebd9c0fb194 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed kconfig minimization: base=3883 full=7670 leaves diff=2012 split chunks (needed=false): <2012> split chunk #0 of len 2012 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit a734662572708cf062e974f659ae50c24fc1ad17 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1dc1aa99519d06f94c406fa75a34d5744d7f0b13726e326178f857f335924fb9 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a734662572708cf062e974f659ae50c24fc1ad17 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d7dfeac89d158c3339ce1dcdbbfb4232d2bd5bbb065f07047094256cc17b76b4 all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit a734662572708cf062e974f659ae50c24fc1ad17 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 43588da3dc89f59ba9ca6cd432afe1c3fe182646e9e3fd882f5c33512d3d4694 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit a734662572708cf062e974f659ae50c24fc1ad17 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cbf5a3f22e1980e3da6aca0204d643a9ad3511308aa84f8f6cf32db54ab2f088 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit a734662572708cf062e974f659ae50c24fc1ad17 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a72f8fea322d5e1309f611ecbd299a83ba602a1ff21e47451943eb24ea0b682 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] the chunk can be dropped minimized to 403 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI BLK_DEV_ZONED CMA COMMON_CLK DAX DLM DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU 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 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_CORE FB_DEFERRED_IO FB_DEVICE FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED 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 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_DRAGONRISE 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_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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fc616465eab72fede03e7f1903be7f585cc59ff287e3e7c908f06c9e7c93e139 all runs: OK false negative chance: 0.000 # git bisect start a734662572708cf062e974f659ae50c24fc1ad17 6995e2de6891c724bfeb2db33d7b87775f913ad1 Bisecting: 9822 revisions left to test after this (roughly 13 steps) [7fffbc71075dcb733068d711c2593127cdce86f0] sysctl: set variable sysctl_mount_point storage-class-specifier to static testing commit 7fffbc71075dcb733068d711c2593127cdce86f0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 34bd062753c9ba6fa0b80d3caa4bad7a9847397eb72ce25e9bc047a68cbf8f09 all runs: OK false negative chance: 0.000 # git bisect good 7fffbc71075dcb733068d711c2593127cdce86f0 Bisecting: 4850 revisions left to test after this (roughly 12 steps) [441c9373153f69d0a601e7c0046734bcea1b9272] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux.git testing commit 441c9373153f69d0a601e7c0046734bcea1b9272 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7f7cb3882ea31629e0ffb4156a0466146be2f86584e1f7e72c347199ca658657 all runs: OK false negative chance: 0.000 # git bisect good 441c9373153f69d0a601e7c0046734bcea1b9272 Bisecting: 2391 revisions left to test after this (roughly 11 steps) [00de063849c71ce8273056d6b5da3588972ab086] Merge branch 'drm-next' of git://git.freedesktop.org/git/drm/drm.git testing commit 00de063849c71ce8273056d6b5da3588972ab086 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c860a580093b0cb11fcbbade6ca0fbdfb2709722df3b10231461457c1f05c918 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] # git bisect bad 00de063849c71ce8273056d6b5da3588972ab086 Bisecting: 1209 revisions left to test after this (roughly 10 steps) [9b8a7476b7e58f4f6e0b3a0b62b944d67d227fbf] Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git testing commit 9b8a7476b7e58f4f6e0b3a0b62b944d67d227fbf gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1c0dd4a2f140f6f8493089e2248e12a20bd1d7bd1e6d073f267aa1f59e172d4c all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] # git bisect bad 9b8a7476b7e58f4f6e0b3a0b62b944d67d227fbf Bisecting: 643 revisions left to test after this (roughly 9 steps) [08af44ce1e067712f35a027fa910e183efa4bb9d] Merge branch 'locks-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git testing commit 08af44ce1e067712f35a027fa910e183efa4bb9d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 030395a0911ea5128f11c8c9ecba78ed91fd7647fa3d88ff754f29e306049488 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] # git bisect bad 08af44ce1e067712f35a027fa910e183efa4bb9d Bisecting: 303 revisions left to test after this (roughly 8 steps) [91bf628485585a1362af0376abce68cf50003c51] Merge branch 'clk-next' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git testing commit 91bf628485585a1362af0376abce68cf50003c51 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5bd1ce15c8856e4fe203f08506b4011c72fd500bbe5b2afce48e83393f2010fa all runs: OK false negative chance: 0.000 # git bisect good 91bf628485585a1362af0376abce68cf50003c51 Bisecting: 115 revisions left to test after this (roughly 7 steps) [4446cf21d0dd72ba215b164446b08c891a1ce475] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git testing commit 4446cf21d0dd72ba215b164446b08c891a1ce475 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b3f8bc58a4011cbbe8598c9de063ca29cc77e04173470f3c0fcbb4d2ac2b868e all runs: OK false negative chance: 0.000 # git bisect good 4446cf21d0dd72ba215b164446b08c891a1ce475 Bisecting: 71 revisions left to test after this (roughly 6 steps) [884f3eb45696fd29aa6bab6711b01b1a3ebb9f03] Merge branch 'jfs-next' of git://github.com/kleikamp/linux-shaggy.git testing commit 884f3eb45696fd29aa6bab6711b01b1a3ebb9f03 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6a0531f23935692132d1bb86426755e797a138bb0b0eb517446547d10505f5fd all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] # git bisect bad 884f3eb45696fd29aa6bab6711b01b1a3ebb9f03 Bisecting: 20 revisions left to test after this (roughly 5 steps) [5df89a53a77a366969e7f04c36824f4c4e481d6a] Merge branch 'for_next' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git testing commit 5df89a53a77a366969e7f04c36824f4c4e481d6a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3fc69415219836fc9d82a8d5afa53bb738ba15aaf9d9c5046d095dd797c667da all runs: OK false negative chance: 0.000 # git bisect good 5df89a53a77a366969e7f04c36824f4c4e481d6a Bisecting: 11 revisions left to test after this (roughly 3 steps) [b6aca837d686814d049a9d6d62fdca06414524f8] Merge branch 'dev' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git testing commit b6aca837d686814d049a9d6d62fdca06414524f8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e4cd29e368005bd4b3f14cf9e749770173b032ade3dcb24ac5f6e6dd4c74ad2 all runs: OK false negative chance: 0.000 # git bisect good b6aca837d686814d049a9d6d62fdca06414524f8 Bisecting: 7 revisions left to test after this (roughly 3 steps) [591ed27813b716242eb323f92f38d487f30d527b] Merge branch 'for-next' of git://git.kernel.org/pub/scm/fs/fsverity/linux.git testing commit 591ed27813b716242eb323f92f38d487f30d527b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5fed34d25c04e27b5fff681a7b81958f0cebaeaa497e98067ab5d65efe75b0b7 all runs: OK false negative chance: 0.000 # git bisect good 591ed27813b716242eb323f92f38d487f30d527b Bisecting: 3 revisions left to test after this (roughly 2 steps) [12682e7bd6b9bcd89ceb22b626225911fb4334c2] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git testing commit 12682e7bd6b9bcd89ceb22b626225911fb4334c2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: db3a04bf2abf54d795f8835f89cc968ffd75985eb32076d57d55508514e53473 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] # git bisect bad 12682e7bd6b9bcd89ceb22b626225911fb4334c2 Bisecting: 1 revision left to test after this (roughly 1 step) [8f18190e31734e434a650d3435da072f03fe485f] gfs2: Use mapping->gfp_mask for metadata inodes testing commit 8f18190e31734e434a650d3435da072f03fe485f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3080352cbeb3230971cdd4572a6658314baaccb1a2fe41d394273b3897fbf31a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple representative crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple, types: [UNKNOWN] # git bisect bad 8f18190e31734e434a650d3435da072f03fe485f Bisecting: 0 revisions left to test after this (roughly 0 steps) [c6fa6b6c07c8ca5b0cc6b6879661d138884190d4] gfs2: increase usage of folio_next_index() helper testing commit c6fa6b6c07c8ca5b0cc6b6879661d138884190d4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2f8bbf51eed7cefb963f8320a84c3d7eacf43c96473e62979a79ac44b5b67b31 all runs: OK false negative chance: 0.000 # git bisect good c6fa6b6c07c8ca5b0cc6b6879661d138884190d4 8f18190e31734e434a650d3435da072f03fe485f is the first bad commit commit 8f18190e31734e434a650d3435da072f03fe485f Author: Andreas Gruenbacher Date: Wed Jul 26 23:17:53 2023 +0200 gfs2: Use mapping->gfp_mask for metadata inodes Set mapping->gfp mask to GFP_NOFS for all metadata inodes so that allocating pages in the address space of those inodes won't call back into the filesystem. This allows to switch back from find_or_create_page() to grab_cache_page() in two places. Partially reverts commit 220cca2a4f58 ("GFS2: Change truncate page allocation to be GFP_NOFS"). Signed-off-by: Andreas Gruenbacher fs/gfs2/inode.c | 10 ++++++++-- fs/gfs2/lops.c | 7 +++---- fs/gfs2/quota.c | 2 +- 3 files changed, 12 insertions(+), 7 deletions(-) accumulated error probability: 0.00 culprit signature: 3080352cbeb3230971cdd4572a6658314baaccb1a2fe41d394273b3897fbf31a parent signature: 2f8bbf51eed7cefb963f8320a84c3d7eacf43c96473e62979a79ac44b5b67b31 revisions tested: 22, total time: 4h23m52.428390347s (build: 2h11m31.532072605s, test: 2h1m2.78884285s) first bad commit: 8f18190e31734e434a650d3435da072f03fe485f gfs2: Use mapping->gfp_mask for metadata inodes recipients (to): ["agruenba@redhat.com"] recipients (cc): [] crash: BUG: unable to handle kernel NULL pointer dereference in gfs2_lookup_simple loop0: detected capacity change from 0 to 32768 gfs2: fsid=noยล ar?d: Trying to join cluster "lock_nolock", "noยล ar?d" gfs2: fsid=noยล ar?d: Now mounting FS (format 1801)... syz-executor.0: attempt to access beyond end of device loop0: rw=12288, sector=131072, nr_sectors = 8 limit=32768 BUG: kernel NULL pointer dereference, address: 000000000000002b #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 109bb1067 P4D 109bb1067 PUD 109bfc067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 2552 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:gfs2_lookup_simple+0x63/0xa0 fs/gfs2/inode.c:286 Code: ff ff ff ff 48 63 d0 89 44 24 04 e8 77 75 18 00 ba 01 00 00 00 48 89 ef f7 d0 48 89 e6 89 04 24 e8 f2 eb ff ff 48 85 c0 74 25 <48> 8b 50 30 c7 82 f0 00 00 00 40 0c 00 00 48 8b 54 24 10 65 48 2b RSP: 0018:ffffc900022fbc30 EFLAGS: 00010282 RAX: fffffffffffffffb RBX: ffffffff82ae8bab RCX: ffffc900022fbb2c RDX: 0000000000000000 RSI: ffffffff82ad1636 RDI: 00000000ffffffff RBP: ffff88817db10638 R08: 0000000000000555 R09: ffff888105b63fd8 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffffc900022fbc90 R14: ffff888107f99268 R15: ffff88817db10638 FS: 00007ff6b6c8b6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000002b CR3: 0000000109b86000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: init_journal+0x13e/0xc70 fs/gfs2/ops_fstype.c:742 init_inodes fs/gfs2/ops_fstype.c:885 [inline] gfs2_fill_super+0x948/0xf20 fs/gfs2/ops_fstype.c:1248 get_tree_bdev+0x172/0x280 fs/super.c:1318 gfs2_get_tree+0x20/0x90 fs/gfs2/ops_fstype.c:1333 vfs_get_tree+0x1c/0x90 fs/super.c:1519 do_new_mount fs/namespace.c:3335 [inline] path_mount+0x48a/0xb80 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __x64_sys_mount+0x111/0x150 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff6b5e7e1ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ff6b6c8aee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ff6b6c8af80 RCX: 00007ff6b5e7e1ea RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007ff6b6c8af40 RBP: 0000000020000000 R08: 00007ff6b6c8af80 R09: 0000000000000819 R10: 0000000000000819 R11: 0000000000000246 R12: 0000000020000040 R13: 00007ff6b6c8af40 R14: 0000000000012607 R15: 0000000020000080 Modules linked in: CR2: 000000000000002b ---[ end trace 0000000000000000 ]--- RIP: 0010:gfs2_lookup_simple+0x63/0xa0 fs/gfs2/inode.c:286 Code: ff ff ff ff 48 63 d0 89 44 24 04 e8 77 75 18 00 ba 01 00 00 00 48 89 ef f7 d0 48 89 e6 89 04 24 e8 f2 eb ff ff 48 85 c0 74 25 <48> 8b 50 30 c7 82 f0 00 00 00 40 0c 00 00 48 8b 54 24 10 65 48 2b RSP: 0018:ffffc900022fbc30 EFLAGS: 00010282 RAX: fffffffffffffffb RBX: ffffffff82ae8bab RCX: ffffc900022fbb2c RDX: 0000000000000000 RSI: ffffffff82ad1636 RDI: 00000000ffffffff RBP: ffff88817db10638 R08: 0000000000000555 R09: ffff888105b63fd8 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffffc900022fbc90 R14: ffff888107f99268 R15: ffff88817db10638 FS: 00007ff6b6c8b6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000002b CR3: 0000000109b86000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: ff 48 63 decl 0x63(%rax) 3: d0 89 44 24 04 e8 rorb -0x17fbdbbc(%rcx) 9: 77 75 ja 0x80 b: 18 00 sbb %al,(%rax) d: ba 01 00 00 00 mov $0x1,%edx 12: 48 89 ef mov %rbp,%rdi 15: f7 d0 not %eax 17: 48 89 e6 mov %rsp,%rsi 1a: 89 04 24 mov %eax,(%rsp) 1d: e8 f2 eb ff ff call 0xffffec14 22: 48 85 c0 test %rax,%rax 25: 74 25 je 0x4c * 27: 48 8b 50 30 mov 0x30(%rax),%rdx <-- trapping instruction 2b: c7 82 f0 00 00 00 40 movl $0xc40,0xf0(%rdx) 32: 0c 00 00 35: 48 8b 54 24 10 mov 0x10(%rsp),%rdx 3a: 65 gs 3b: 48 rex.W 3c: 2b .byte 0x2b