ci starts bisection 2023-10-20 00:26:16.422950183 +0000 UTC m=+36458.883933829 bisecting cause commit starting from 2dac75696c6da3c848daa118a729827541c89d33 building syzkaller on 342b9c5594e85819665af37b55afe27d0731379f fetch other tags and check if the commit is present ensuring issue is reproducible on original commit 2dac75696c6da3c848daa118a729827541c89d33 testing commit 2dac75696c6da3c848daa118a729827541c89d33 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1856381c8331f061adb0bb7f36873a9aeb01785b473267f36b3f643291850217 all runs: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 2dac75696c6da3c848daa118a729827541c89d33 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 67de9526c43b003571b0343022cf3a2aab3f42b934f62d27c6fd33403c5877c9 all runs: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=3883 full=7720 leaves diff=2025 split chunks (needed=false): <2025> split chunk #0 of len 2025 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 2dac75696c6da3c848daa118a729827541c89d33 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9fdfbd43f02d0021f3aeb687bd470d1f376e74844f965de12722af70847c096d all runs: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 2dac75696c6da3c848daa118a729827541c89d33 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 97b193ab82cce6aa6fc963598c39696514a98dd7874448b6ab10df89b293d680 all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 2dac75696c6da3c848daa118a729827541c89d33 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f0640afc9b9416c826028c66d088a67557b6e6693ed27159e694c6e8f5ed41fc all runs: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 2dac75696c6da3c848daa118a729827541c89d33 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 68d3a6798c6ec825ed7ca8ac84d5308faf48b608e7299af998cb30c81867250c all runs: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit 2dac75696c6da3c848daa118a729827541c89d33 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1385865600637ce05a51223992a2b1bddc5cc04cb41fc2c631a543ad3cca529a run #0: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc002373090 0xc002373180 0xc002373220] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request. '(resource type:compute)'. ForceSendFields:[] NullFields:[]}. run #1: crashed: WARNING: suspicious RCU usage in gfs2_permission run #2: crashed: WARNING: suspicious RCU usage in gfs2_permission run #3: crashed: WARNING: suspicious RCU usage in gfs2_permission run #4: crashed: WARNING: suspicious RCU usage in gfs2_permission run #5: crashed: WARNING: suspicious RCU usage in gfs2_permission run #6: crashed: WARNING: suspicious RCU usage in gfs2_permission run #7: crashed: WARNING: suspicious RCU usage in gfs2_permission run #8: crashed: WARNING: suspicious RCU usage in gfs2_permission run #9: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] the chunk can be dropped minimized to 405 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI BLK_DEV_ZONED CMA COMMON_CLK DAX DLM DM_THIN_PROVISIONING DM_UEVENT 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 EXECMEM 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_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 [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed picked [v6.5 v6.4 v6.3 v6.1 v5.19 v5.17 v5.15 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 28 release tags testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e6abe6c5c36229421bcc74508a1c2a47e3ce9f9d897ff1572ec58b7ad9a0350 all runs: OK false negative chance: 0.000 # git bisect start 2dac75696c6da3c848daa118a729827541c89d33 2dde18cd1d8fac735875f2e4987f11817cc0bc2c Bisecting: 14030 revisions left to test after this (roughly 14 steps) [cefc06e4de1477dbdc3cb2a91d4b1873b7797a5c] Merge tag 'i2c-for-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux testing commit cefc06e4de1477dbdc3cb2a91d4b1873b7797a5c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1033cf06655dde1e2e0266b19c4c309c7d80c7baa5f43b2133a097e7d4f1b45c all runs: OK false negative chance: 0.000 # git bisect good cefc06e4de1477dbdc3cb2a91d4b1873b7797a5c Bisecting: 7027 revisions left to test after this (roughly 13 steps) [13aa80aac95019f37974affdf88f59eb1e634f40] Merge branch 'master' of git://linuxtv.org/mchehab/media-next.git testing commit 13aa80aac95019f37974affdf88f59eb1e634f40 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f9f786538a089b521e254157ad281106fe2a84064418084b00d980b545c96744 all runs: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] # git bisect bad 13aa80aac95019f37974affdf88f59eb1e634f40 Bisecting: 4028 revisions left to test after this (roughly 12 steps) [c37461e9a464c07f9096a1180ea38cedd51a62bd] Merge branch 'xtensa-for-next' of git://github.com/jcmvbkbc/linux-xtensa.git testing commit c37461e9a464c07f9096a1180ea38cedd51a62bd gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cacf5f9e4698abafe6c2c094c435cd173a195938ac1102f07fca985d1608cf22 all runs: OK false negative chance: 0.000 # git bisect good c37461e9a464c07f9096a1180ea38cedd51a62bd Bisecting: 2014 revisions left to test after this (roughly 11 steps) [8cdacefbf9de9e28e0339d3b5c332e90c5ac5157] bcachefs: Fix error handling in bch2_btree_update_start() testing commit 8cdacefbf9de9e28e0339d3b5c332e90c5ac5157 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a2a5e0fc21eb47c50228504ed58d197f21c5a8ec6c32aed1ffb54fabf13c89cf all runs: OK false negative chance: 0.000 # git bisect good 8cdacefbf9de9e28e0339d3b5c332e90c5ac5157 Bisecting: 1008 revisions left to test after this (roughly 10 steps) [7073f67f7451c73c70a300aca22e162a20bf19cf] Merge branch 'ksmbd-for-next' of https://github.com/smfrench/smb3-kernel.git testing commit 7073f67f7451c73c70a300aca22e162a20bf19cf gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5c61963988df75ac610aec8fef49feca6e6531866114e28079b0933dfbb56ad6 all runs: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] # git bisect bad 7073f67f7451c73c70a300aca22e162a20bf19cf Bisecting: 502 revisions left to test after this (roughly 9 steps) [cb07ec0024b32220a559a6423e43e7fcb5043927] bcachefs: snapshot_to_text() includes snapshot tree testing commit cb07ec0024b32220a559a6423e43e7fcb5043927 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 85dae30a587d724233bf0dffc2d05e52ecb3df35566ea7e9e1364f3e2224bb24 all runs: OK false negative chance: 0.000 # git bisect good cb07ec0024b32220a559a6423e43e7fcb5043927 Bisecting: 255 revisions left to test after this (roughly 8 steps) [3bb4efc85d439a6841ea633292482a923c642cf9] Merge branch 'afs-next' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git testing commit 3bb4efc85d439a6841ea633292482a923c642cf9 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 69c41452293807247c2c8c9251d3c24d20237e2b510147de11a771b1c225981c all runs: OK false negative chance: 0.000 # git bisect good 3bb4efc85d439a6841ea633292482a923c642cf9 Bisecting: 127 revisions left to test after this (roughly 7 steps) [a1c20d15ee1e2cdcb54134174f0dab3b2fbcf4e4] btrfs: make wait_extent_bit() static testing commit a1c20d15ee1e2cdcb54134174f0dab3b2fbcf4e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 76119b17c1c9e6e65ec8722990048a29619a8ae76f05c81cc4c0406a79579ff2 all runs: OK false negative chance: 0.000 # git bisect good a1c20d15ee1e2cdcb54134174f0dab3b2fbcf4e4 Bisecting: 74 revisions left to test after this (roughly 6 steps) [b08f4b55ac92546345b423a49502a0980bdb0139] Merge branch 'for_next' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git testing commit b08f4b55ac92546345b423a49502a0980bdb0139 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c7c293ab023450a33bd790a0910035ff495542dae9c28c0bdd481432fe57ef7d all runs: OK false negative chance: 0.000 # git bisect good b08f4b55ac92546345b423a49502a0980bdb0139 Bisecting: 37 revisions left to test after this (roughly 5 steps) [bdefd689b7ff0eadc3b29dc6c66556617bd1ed42] ext4: add some kunit stub for mballoc kunit test testing commit bdefd689b7ff0eadc3b29dc6c66556617bd1ed42 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 33f3447613de97938af094c1d08807d81c7a317500ec02d18c78116f10acffd3 all runs: OK false negative chance: 0.000 # git bisect good bdefd689b7ff0eadc3b29dc6c66556617bd1ed42 Bisecting: 20 revisions left to test after this (roughly 4 steps) [7f17157fea4ff6d9b7d5c530b4611728e9716c55] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git testing commit 7f17157fea4ff6d9b7d5c530b4611728e9716c55 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 87337a6e9e0dbfa1ee40e56ac260cefd08df649a8f3139df3f477c1ddf43321c all runs: OK false negative chance: 0.000 # git bisect good 7f17157fea4ff6d9b7d5c530b4611728e9716c55 Bisecting: 10 revisions left to test after this (roughly 3 steps) [18e0c7817d45152d46d01ef770ab5d6837b4f639] gfs2: No longer use 'extern' in function declarations testing commit 18e0c7817d45152d46d01ef770ab5d6837b4f639 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 85c99a67c0e5466c1ca60b109374de20ea82f3dfb02f028e529d045b66baa63b all runs: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] # git bisect bad 18e0c7817d45152d46d01ef770ab5d6837b4f639 Bisecting: 4 revisions left to test after this (roughly 2 steps) [089f4eb003dc2265036aac99c02aa99d6b5c4ac7] gfs2: Don't update inode timestamps for direct writes testing commit 089f4eb003dc2265036aac99c02aa99d6b5c4ac7 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ded149dd025557f5e422f9d9d5c0e0c5563e7eeb5b5f69b259fc3c0b704ff36e all runs: OK false negative chance: 0.000 # git bisect good 089f4eb003dc2265036aac99c02aa99d6b5c4ac7 Bisecting: 2 revisions left to test after this (roughly 1 step) [0abd1557e21c617bd13fc18f7725fc6363c05913] gfs2: fix an oops in gfs2_permission testing commit 0abd1557e21c617bd13fc18f7725fc6363c05913 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 32747fb84b3938827ed8981d80b07deb795235dfe0efcdd59f442c32a1c6010b all runs: crashed: WARNING: suspicious RCU usage in gfs2_permission representative crash: WARNING: suspicious RCU usage in gfs2_permission, types: [LOCKDEP] # git bisect bad 0abd1557e21c617bd13fc18f7725fc6363c05913 Bisecting: 0 revisions left to test after this (roughly 0 steps) [4c6a08125f2249531ec01783a5f4317d7342add5] gfs2: ignore negated quota changes testing commit 4c6a08125f2249531ec01783a5f4317d7342add5 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 02eaf31340a193424084e3e76cd747f358c29dd97daf002a983419aad2ed269f all runs: OK false negative chance: 0.000 # git bisect good 4c6a08125f2249531ec01783a5f4317d7342add5 0abd1557e21c617bd13fc18f7725fc6363c05913 is the first bad commit commit 0abd1557e21c617bd13fc18f7725fc6363c05913 Author: Al Viro Date: Mon Oct 2 03:33:44 2023 +0100 gfs2: fix an oops in gfs2_permission In RCU mode, we might race with gfs2_evict_inode(), which zeroes ->i_gl. Freeing of the object it points to is RCU-delayed, so if we manage to fetch the pointer before it's been replaced with NULL, we are fine. Check if we'd fetched NULL and treat that as "bail out and tell the caller to get out of RCU mode". Signed-off-by: Al Viro Signed-off-by: Andreas Gruenbacher fs/gfs2/inode.c | 11 +++++++++-- fs/gfs2/super.c | 2 +- 2 files changed, 10 insertions(+), 3 deletions(-) accumulated error probability: 0.00 culprit signature: 32747fb84b3938827ed8981d80b07deb795235dfe0efcdd59f442c32a1c6010b parent signature: 02eaf31340a193424084e3e76cd747f358c29dd97daf002a983419aad2ed269f revisions tested: 23, total time: 6h42m48.287356547s (build: 3h31m12.708924208s, test: 2h57m43.122255017s) first bad commit: 0abd1557e21c617bd13fc18f7725fc6363c05913 gfs2: fix an oops in gfs2_permission recipients (to): ["agruenba@redhat.com" "agruenba@redhat.com" "cluster-devel@redhat.com" "rpeterso@redhat.com" "viro@zeniv.linux.org.uk"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: WARNING: suspicious RCU usage in gfs2_permission gfs2: fsid=syz:syz.0: first mount done, others may mount ============================= WARNING: suspicious RCU usage 6.6.0-rc2-syzkaller #0 Not tainted ----------------------------- fs/gfs2/inode.c:1876 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 no locks held by syz-executor.0/2570. stack backtrace: CPU: 1 PID: 2570 Comm: syz-executor.0 Not tainted 6.6.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x7e/0xb0 lib/dump_stack.c:106 lockdep_rcu_suspicious+0x158/0x1e0 kernel/locking/lockdep.c:6711 gfs2_permission+0x1a0/0x1c0 fs/gfs2/inode.c:1876 do_inode_permission fs/namei.c:461 [inline] inode_permission fs/namei.c:528 [inline] inode_permission+0xd2/0x180 fs/namei.c:503 may_open+0x6a/0x150 fs/namei.c:3267 do_open fs/namei.c:3637 [inline] path_openat+0x69e/0xc30 fs/namei.c:3796 do_filp_open+0xae/0x150 fs/namei.c:3823 do_sys_openat2+0xa2/0xd0 fs/open.c:1422 do_sys_open fs/open.c:1437 [inline] __do_sys_openat fs/open.c:1453 [inline] __se_sys_openat fs/open.c:1448 [inline] __x64_sys_openat+0x69/0x90 fs/open.c:1448 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: 0033:0x7ffa4287b6e0 Code: 48 89 44 24 20 75 93 44 89 54 24 0c e8 09 82 02 00 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 5c 82 02 00 8b 44 RSP: 002b:00007ffa43679e70 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000010000 RCX: 00007ffa4287b6e0 RDX: 0000000000010000 RSI: 0000000020037f80 RDI: 00000000ffffff9c RBP: 0000000020037f80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000020037f80 R13: 00007ffa43679f40 R14: 0000000000037f19 R15: 0000000020037fc0