ci2 starts bisection 2024-11-13 00:17:45.894419939 +0000 UTC m=+16692.026981745 bisecting cause commit starting from 2d5404caa8c7bb5c4e0435f94b28834ae5456623 building syzkaller on 75bb1b32609dc8e20e442a992f648e465c66cdf3 ensuring issue is reproducible on original commit 2d5404caa8c7bb5c4e0435f94b28834ae5456623 testing commit 2d5404caa8c7bb5c4e0435f94b28834ae5456623 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 57ab3fbd4a95ad5812f286587e61d842e4cf7a0f7d1df3c4d531c25890821602 all runs: crashed: WARNING in rcu_sync_dtor representative crash: WARNING in rcu_sync_dtor, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 2d5404caa8c7bb5c4e0435f94b28834ae5456623 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 798e801ccbf2524fb1cb440ebfad685842ef020c0feb34b3caf87b6f646d247f all runs: crashed: WARNING in rcu_sync_dtor representative crash: WARNING in rcu_sync_dtor, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed kconfig minimization: base=4037 full=8184 leaves diff=2110 split chunks (needed=false): <2110> split chunk #0 of len 2110 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 2d5404caa8c7bb5c4e0435f94b28834ae5456623 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 384222a796f709f68589f83395f7c28798f7512b0f3f02cd2865b3334cf9d0e7 all runs: crashed: WARNING in rcu_sync_dtor representative crash: WARNING in rcu_sync_dtor, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 2d5404caa8c7bb5c4e0435f94b28834ae5456623 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 56e3dafdc97901de971e33069aa9af912b3102ceb9135d98dc9686f42a5fb500 all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 2d5404caa8c7bb5c4e0435f94b28834ae5456623 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8fd2aba0ed853dd40eaac4b4df55865bb6dcdbdae22ce152256f2500938f1120 all runs: crashed: WARNING in rcu_sync_dtor representative crash: WARNING in rcu_sync_dtor, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 2d5404caa8c7bb5c4e0435f94b28834ae5456623 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 05110f38a2b6e2fc02ef8076c1806b711a7679d342dff778cf244a7f841e0752 all runs: crashed: WARNING in rcu_sync_dtor representative crash: WARNING in rcu_sync_dtor, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 2d5404caa8c7bb5c4e0435f94b28834ae5456623 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb546d39486b3c5aa633f3c7b2fa42e7613d8a76c38b71fbb6a42ada93b3a21b run #0: crashed: WARNING in rcu_sync_dtor run #1: crashed: WARNING in rcu_sync_dtor run #2: crashed: WARNING in rcu_sync_dtor run #3: crashed: WARNING in rcu_sync_dtor run #4: crashed: WARNING in corrupted run #5: crashed: WARNING in rcu_sync_dtor run #6: crashed: WARNING in rcu_sync_dtor run #7: crashed: WARNING in rcu_sync_dtor run #8: crashed: WARNING in rcu_sync_dtor run #9: crashed: WARNING in rcu_sync_dtor representative crash: WARNING in rcu_sync_dtor, types: [WARNING] the chunk can be dropped minimized to 422 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CHARGER_BQ24190 CMA COMMON_CLK DAX DLM DRM 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_CXUSB_ANALOG 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_BACKED_BY_FILE 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 EXTCON_PTN5150 EXTCON_USBC_TUSB320 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_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT 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_STACK 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 GNSS GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_LJCA GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GROUP_SCHED_WEIGHT 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_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_KVM_READONLY_MEM 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_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2200 HID_MCP2221 HID_MEGAWORLD_FF 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_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE 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_SIGMAMICRO HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TOPRE HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_CP2615 I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_HID_ACPI I2C_HID_CORE I2C_HID_OF I2C_LJCA 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_CHTWC_INT33FE INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISHTP_ECLITE INTEL_ISH_FIRMWARE_DOWNLOADER INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_TEST 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_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_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE TYPEC TYPEC_MUX_PI3USB30532 USB_LJCA USB_ROLES_INTEL_XHCI USB_ROLE_SWITCH VIDEO_DEV VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed picked [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: efde93d9538085be6f73a6dc29a768fe29383b02d12072552c9bbbf746c6e598 all runs: OK false negative chance: 0.000 # git bisect start 2d5404caa8c7bb5c4e0435f94b28834ae5456623 98f7e32f20d28ec452afb208f9cffc08448a2652 Bisecting: 7235 revisions left to test after this (roughly 13 steps) [726e2d0cf2bbc14e3bf38491cddda1a56fe18663] Merge tag 'dma-mapping-6.12-2024-09-19' of git://git.infradead.org/users/hch/dma-mapping testing commit 726e2d0cf2bbc14e3bf38491cddda1a56fe18663 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ddb47fe30091a697f2d1e3e6f2688e3275a636d0b7a778a01f8475c92ca24633 all runs: OK false negative chance: 0.000 # git bisect good 726e2d0cf2bbc14e3bf38491cddda1a56fe18663 Bisecting: 3657 revisions left to test after this (roughly 12 steps) [220d83b52c7d16ec3c168b82f4e6ce59c645f7ab] smb: client: make SHA-512 TFM ephemeral testing commit 220d83b52c7d16ec3c168b82f4e6ce59c645f7ab gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f3f22f579314f044d775c9bd6f5b48ea661759d0eb3a8d3b281b5b1ac8e47e72 all runs: crashed: WARNING in rcu_sync_dtor representative crash: WARNING in rcu_sync_dtor, types: [WARNING] # git bisect bad 220d83b52c7d16ec3c168b82f4e6ce59c645f7ab Bisecting: 1791 revisions left to test after this (roughly 11 steps) [b3f391fddf3cfaadda59ec8da8fd17f4520bbf42] Merge tag 'bcachefs-2024-09-21' of git://evilpiepirate.org/bcachefs testing commit b3f391fddf3cfaadda59ec8da8fd17f4520bbf42 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 56bc858f5494854cdd27d7696d354c0fafc98f55eb90988cd249b75895add134 all runs: OK false negative chance: 0.000 # git bisect good b3f391fddf3cfaadda59ec8da8fd17f4520bbf42 Bisecting: 959 revisions left to test after this (roughly 10 steps) [9ab27b018649c9504e894496cb4d7d8afcffd897] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux testing commit 9ab27b018649c9504e894496cb4d7d8afcffd897 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dc840d3d119e75f621820fe433e7bdb7be6c2e3e5d0fff5053d2ee156b4b8e02 all runs: OK false negative chance: 0.000 # git bisect good 9ab27b018649c9504e894496cb4d7d8afcffd897 Bisecting: 511 revisions left to test after this (roughly 9 steps) [6db6a19f1ae31e29857b0f6f3e3896c22543be21] Merge tag 'hwlock-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux testing commit 6db6a19f1ae31e29857b0f6f3e3896c22543be21 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 018422446e55e1ddf1feec660331cc8fc8c9086e3e7e01e28d76c80e1b5e6eaf all runs: OK false negative chance: 0.000 # git bisect good 6db6a19f1ae31e29857b0f6f3e3896c22543be21 Bisecting: 260 revisions left to test after this (roughly 8 steps) [4165cee7ecb112c20bc1a05fa8d93d16d11b68c2] Merge tag 'exfat-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat testing commit 4165cee7ecb112c20bc1a05fa8d93d16d11b68c2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8a60e990475cc15ff3ea636253f6b6f4e93be7d10a808c4f149a592477595ec2 all runs: crashed: WARNING in rcu_sync_dtor representative crash: WARNING in rcu_sync_dtor, types: [WARNING] # git bisect bad 4165cee7ecb112c20bc1a05fa8d93d16d11b68c2 Bisecting: 130 revisions left to test after this (roughly 7 steps) [7f8de2bf072530a48f53a5658db8528af598b75f] Merge tag 'linux-cpupower-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux testing commit 7f8de2bf072530a48f53a5658db8528af598b75f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: af713d0ce86261d86127f649d9b2b029c973e8f4fe1d573fcd5fa25b7cfa0c71 all runs: OK false negative chance: 0.000 # git bisect good 7f8de2bf072530a48f53a5658db8528af598b75f Bisecting: 68 revisions left to test after this (roughly 6 steps) [fa8380a06bd0523e51f826520aac1beb8c585521] Merge tag 'bpf-next-6.12-struct-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next testing commit fa8380a06bd0523e51f826520aac1beb8c585521 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 14111d3e9451ade11a305be3fae70c47e1ed078cd5856b6575797f4e0d452981 all runs: OK false negative chance: 0.000 # git bisect good fa8380a06bd0523e51f826520aac1beb8c585521 Bisecting: 34 revisions left to test after this (roughly 5 steps) [3981e94285886cd712b563a82a2e99f902510c78] f2fs: convert f2fs_read_multi_pages() to use folio testing commit 3981e94285886cd712b563a82a2e99f902510c78 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d55d304b1cdba18ca0a7d7591110073cf246e89d182ba5ada9918a12f4ef5c06 all runs: OK false negative chance: 0.000 # git bisect good 3981e94285886cd712b563a82a2e99f902510c78 Bisecting: 17 revisions left to test after this (roughly 4 steps) [4cdca5a904b1c72a0ba6ac51a121351128c02fd8] f2fs: add reserved_segments sysfs node testing commit 4cdca5a904b1c72a0ba6ac51a121351128c02fd8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 789bea5d41cfb9cee5fee1c31d6117a6427eb4f6dcf4db1f74f730a934c3a307 all runs: OK false negative chance: 0.000 # git bisect good 4cdca5a904b1c72a0ba6ac51a121351128c02fd8 Bisecting: 8 revisions left to test after this (roughly 3 steps) [ae87b9c2dc9800e6ab52febd09341140599ff8e3] f2fs: allow F2FS_IPU_NOCACHE for pinned file testing commit ae87b9c2dc9800e6ab52febd09341140599ff8e3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a0b50e7b4aa4a8e14ea8ca083beff8558892cdd82e2ae1bd5262770686a2c292 all runs: OK false negative chance: 0.000 # git bisect good ae87b9c2dc9800e6ab52febd09341140599ff8e3 Bisecting: 4 revisions left to test after this (roughly 2 steps) [d2b537b3e533f28e0d97293fe9293161fe8cd137] exfat: fix memory leak in exfat_load_bitmap() testing commit d2b537b3e533f28e0d97293fe9293161fe8cd137 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2adc65b208e5ab44694e29efa235aecfbbc1b367544b897c0ec5e3c263a32de2 run #0: crashed: lost connection to test machine run #1: crashed: WARNING in rcu_sync_dtor run #2: crashed: WARNING in rcu_sync_dtor run #3: crashed: WARNING in rcu_sync_dtor run #4: crashed: WARNING in rcu_sync_dtor run #5: crashed: WARNING in rcu_sync_dtor run #6: crashed: WARNING in rcu_sync_dtor run #7: crashed: WARNING in rcu_sync_dtor run #8: crashed: WARNING in rcu_sync_dtor run #9: OK representative crash: WARNING in rcu_sync_dtor, types: [WARNING] # git bisect bad d2b537b3e533f28e0d97293fe9293161fe8cd137 Bisecting: 1 revision left to test after this (roughly 1 step) [231eb762bbe8fa232e672e5a399eed16a0c0c45a] exfat: do not fallback to buffered write testing commit 231eb762bbe8fa232e672e5a399eed16a0c0c45a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cb37d7e1144e417770c546a43efa0dbcc728e6ab6ffb2ec78ffa0cab71262312 all runs: OK false negative chance: 0.000 # git bisect good 231eb762bbe8fa232e672e5a399eed16a0c0c45a Bisecting: 0 revisions left to test after this (roughly 0 steps) [f761fcdd289d07e8547fef7ac76c3760fc7803f2] exfat: Implement sops->shutdown and ioctl testing commit f761fcdd289d07e8547fef7ac76c3760fc7803f2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 370a4d8d04b1dd6128bcf7a6df4492827b975c08bfd3bff33d96164810d5fd29 all runs: crashed: WARNING in rcu_sync_dtor representative crash: WARNING in rcu_sync_dtor, types: [WARNING] # git bisect bad f761fcdd289d07e8547fef7ac76c3760fc7803f2 f761fcdd289d07e8547fef7ac76c3760fc7803f2 is the first bad commit commit f761fcdd289d07e8547fef7ac76c3760fc7803f2 Author: Dongliang Cui Date: Wed Sep 18 07:40:05 2024 +0900 exfat: Implement sops->shutdown and ioctl We found that when writing a large file through buffer write, if the disk is inaccessible, exFAT does not return an error normally, which leads to the writing process not stopping properly. To easily reproduce this issue, you can follow the steps below: 1. format a device to exFAT and then mount (with a full disk erase) 2. dd if=/dev/zero of=/exfat_mount/test.img bs=1M count=8192 3. eject the device You may find that the dd process does not stop immediately and may continue for a long time. The root cause of this issue is that during buffer write process, exFAT does not need to access the disk to look up directory entries or the FAT table (whereas FAT would do) every time data is written. Instead, exFAT simply marks the buffer as dirty and returns, delegating the writeback operation to the writeback process. If the disk cannot be accessed at this time, the error will only be returned to the writeback process, and the original process will not receive the error, so it cannot be returned to the user side. When the disk cannot be accessed normally, an error should be returned to stop the writing process. Implement sops->shutdown and ioctl to shut down the file system when underlying block device is marked dead. Signed-off-by: Dongliang Cui Signed-off-by: Zhiguo Niu Signed-off-by: Namjae Jeon fs/exfat/exfat_fs.h | 12 ++++++++++++ fs/exfat/file.c | 21 +++++++++++++++++++++ fs/exfat/inode.c | 9 +++++++++ fs/exfat/namei.c | 15 +++++++++++++++ fs/exfat/super.c | 39 +++++++++++++++++++++++++++++++++++++++ include/uapi/linux/exfat.h | 25 +++++++++++++++++++++++++ 6 files changed, 121 insertions(+) create mode 100644 include/uapi/linux/exfat.h accumulated error probability: 0.00 culprit signature: 370a4d8d04b1dd6128bcf7a6df4492827b975c08bfd3bff33d96164810d5fd29 parent signature: cb37d7e1144e417770c546a43efa0dbcc728e6ab6ffb2ec78ffa0cab71262312 revisions tested: 22, total time: 6h52m16.811707767s (build: 2h51m54.415867512s, test: 3h50m45.452984563s) first bad commit: f761fcdd289d07e8547fef7ac76c3760fc7803f2 exfat: Implement sops->shutdown and ioctl recipients (to): ["dongliang.cui@unisoc.com" "linkinjeon@kernel.org" "zhiguo.niu@unisoc.com"] recipients (cc): [] crash: WARNING in rcu_sync_dtor ------------[ cut here ]------------ WARNING: CPU: 0 PID: 10 at kernel/rcu/sync.c:177 rcu_sync_dtor+0x5b/0x70 kernel/rcu/sync.c:177 Modules linked in: CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.11.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Workqueue: events destroy_super_work RIP: 0010:rcu_sync_dtor+0x5b/0x70 kernel/rcu/sync.c:177 Code: 4c 89 f7 e8 37 e8 3d 01 eb 0c 4c 89 f7 e8 2d e8 3d 01 85 ed 74 0a e8 04 57 00 00 83 3b 00 75 15 5b 41 5e 5d c3 cc cc cc cc 90 <0f> 0b 90 eb b2 90 0f 0b 90 eb be 90 0f 0b 90 eb e5 0f 1f 40 00 90 RSP: 0018:ffffc9000005bdc0 EFLAGS: 00010246 RAX: 0000000000000002 RBX: ffff88810d3cf340 RCX: 000000000040003b RDX: 000000000040003c RSI: ffffffff82eb6760 RDI: ffff88810d3cf340 RBP: ffff88810d3cf880 R08: 000000000040003b R09: ffffffff816f5efc R10: 0000000000000000 R11: 0000000000000000 R12: ffff888100086000 R13: ffffffff810c0f37 R14: ffff88810d3cf000 R15: ffff88810d3cf878 FS: 0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb2305618a0 CR3: 0000000103b6a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: percpu_free_rwsem+0x14/0x30 kernel/locking/percpu-rwsem.c:42 destroy_super_work+0x60/0xa0 fs/super.c:282 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0x2e7/0x6b0 kernel/workqueue.c:3312 worker_thread+0x212/0x2d0 kernel/workqueue.c:3393 kthread+0xf5/0x110 kernel/kthread.c:389 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244