ci starts bisection 2024-01-19 09:52:31.66439835 +0000 UTC m=+53.960911562 bisecting cause commit starting from 2863b714f3ad0a9686f2de1b779228ad8c7a8052 building syzkaller on 239abf840427841c91a546737fdcb9a1ed18bd39 fetch other tags and check if the commit is present ensuring issue is reproducible on original commit 2863b714f3ad0a9686f2de1b779228ad8c7a8052 testing commit 2863b714f3ad0a9686f2de1b779228ad8c7a8052 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 43afe6ea09329a33e17f378ee31056f093207d0ea897bacbd5be6d4969012948 all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 2863b714f3ad0a9686f2de1b779228ad8c7a8052 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2298ec37c760ddeb79979cf53b4fc5bc69d93c0a045afb0648cdcc9a6e997949 all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=3923 full=7694 leaves diff=2019 split chunks (needed=false): <2019> split chunk #0 of len 2019 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 2863b714f3ad0a9686f2de1b779228ad8c7a8052 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4511eae2af385b3046eae2bf51d087ad9dc24a649418d10b0e6ba370819424ac all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 2863b714f3ad0a9686f2de1b779228ad8c7a8052 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2bae9365cd0c02b7662a866456231e047b0ec434e74aee1f8f0e7e29bc645768 all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing commit 2863b714f3ad0a9686f2de1b779228ad8c7a8052 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f537e65f7ddb968275a9384f489d64ceb240126a0b89dbe6167d01369e1567a6 all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed testing commit 2863b714f3ad0a9686f2de1b779228ad8c7a8052 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fea00237a1ef466b155a72dc71c84a285aa04820e30eacded86da20e3a4dfe49 all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 2863b714f3ad0a9686f2de1b779228ad8c7a8052 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: af671301554793a63db08ef9e0af8a2de400f48786141ff644e709a3b40a0cfc all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] the chunk can be dropped minimized to 404 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE 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_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 GCC11_NO_STRINGOP_OVERFLOW GENERIC_CPU_DEVICES 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_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_CMEDIA HID_CORSAIR HID_CP2112 HID_ELECOM HID_ELO HID_EMS_FF HID_GEMBIRD HID_GFRM HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MAGICMOUSE HID_MAYFLASH HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TWINHAN HID_UCLOGIC HID_UDRAW_PS3 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_TEST IOMMU_MM_DATA IOMMU_SVA IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_NF_SECURITY IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_IPV6 IP_VS_LBLC IP_VS_LBLCR IP_VS_LC IP_VS_MH IP_VS_NFCT IP_VS_PROTO_TCP IRQ_TIME_ACCOUNTING LAPB LCD_CLASS_DEVICE MAC802154 MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_VIPERBOARD MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_FWD_NETDEV NF_TABLES NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE VIDEO_DEV VIRTIO_FS WAN X86_HAVE_PAE ZONE_DEVICE] disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed picked [v6.7 v6.6 v6.5 v6.3 v6.1 v5.19 v5.17 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 30 release tags testing release v6.7 testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9255d844d13956ed19dfe356464d1324c5db23ab4c8cc2bab59fe5baab801987 all runs: OK false negative chance: 0.000 # git bisect start 2863b714f3ad0a9686f2de1b779228ad8c7a8052 0dd3ee31125508cd67f7e7172247f05b7fd1753a Bisecting: 7504 revisions left to test after this (roughly 13 steps) [27345a7b7bba72bd4b6d183088e4025fbc416b7f] Merge branches 'for-next/ffa/fixes' and 'for-next/scmi/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into for-linux-next testing commit 27345a7b7bba72bd4b6d183088e4025fbc416b7f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 72f4faa90abe6db5166636eec5c6290dfd270b5419740999b1085494a6bc521d all runs: OK false negative chance: 0.000 # git bisect good 27345a7b7bba72bd4b6d183088e4025fbc416b7f Bisecting: 3754 revisions left to test after this (roughly 12 steps) [1ac6b49423e83af2abed9be7fbdf2e491686c66b] Merge branch into tip/master: 'x86/tdx' testing commit 1ac6b49423e83af2abed9be7fbdf2e491686c66b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 95b933a3a296b14995a171a561d3db001bf1a49a1752e1e24212ca9d42779044 all runs: OK false negative chance: 0.000 # git bisect good 1ac6b49423e83af2abed9be7fbdf2e491686c66b Bisecting: 1878 revisions left to test after this (roughly 11 steps) [720262cb67d2dcd238012594342d9ce3fac48871] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git testing commit 720262cb67d2dcd238012594342d9ce3fac48871 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e0f738a37e15908255a4edb3447f453e0b8aa4817892b55c5522bc0f24b8b261 all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] # git bisect bad 720262cb67d2dcd238012594342d9ce3fac48871 Bisecting: 946 revisions left to test after this (roughly 10 steps) [0d100f99a96ba0dc2f9501985bc2a0b39b3c95d5] Merge branch 'for-next/core' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux testing commit 0d100f99a96ba0dc2f9501985bc2a0b39b3c95d5 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c3d0fb87ba64c8d08dc48e9717522f7c24999ead53bd5cb9ea1c24ace0316be all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] # git bisect bad 0d100f99a96ba0dc2f9501985bc2a0b39b3c95d5 Bisecting: 460 revisions left to test after this (roughly 9 steps) [e55c0c7a7d01cd2c6b623d9cd9c7653607bd8b4f] Merge branch 'main' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git testing commit e55c0c7a7d01cd2c6b623d9cd9c7653607bd8b4f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b9c718b01c4e96ebba39f71c1e86c81ee9c885f54675345bd5b91c35792507e6 all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] # git bisect bad e55c0c7a7d01cd2c6b623d9cd9c7653607bd8b4f Bisecting: 263 revisions left to test after this (roughly 8 steps) [1c6d984f523f67ecfad1083bb04c55d91977bb15] x86/kvm: Do not try to disable kvmclock if it was not enabled testing commit 1c6d984f523f67ecfad1083bb04c55d91977bb15 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fe0988c3b6b3b3a3806032574a76cd57746569e0c33b08b6854ef5da5093f74e all runs: OK false negative chance: 0.000 # git bisect good 1c6d984f523f67ecfad1083bb04c55d91977bb15 Bisecting: 132 revisions left to test after this (roughly 7 steps) [096f286ee3fadf3f6777dedba35fa66654ec9f34] Merge tag 'mips_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux testing commit 096f286ee3fadf3f6777dedba35fa66654ec9f34 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ac9997b47c39806e33224d7d46dd00bb05981a0018cb5d7606d332c9611ede6e all runs: OK false negative chance: 0.000 # git bisect good 096f286ee3fadf3f6777dedba35fa66654ec9f34 Bisecting: 66 revisions left to test after this (roughly 6 steps) [aeaa44075f8e49e2e0ad4507d925e690b7950145] netfilter: nf_queue: remove excess nf_bridge variable testing commit aeaa44075f8e49e2e0ad4507d925e690b7950145 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3e67eb57703320be16aa92b32b16cab6bac662816b7ccd667884ae79eed70037 all runs: OK false negative chance: 0.000 # git bisect good aeaa44075f8e49e2e0ad4507d925e690b7950145 Bisecting: 33 revisions left to test after this (roughly 5 steps) [ccdc575a2852c5f2c71d5dad5c3fe21822f860fa] selftests/mm: mremap_test: fix build warning testing commit ccdc575a2852c5f2c71d5dad5c3fe21822f860fa gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 001a6abdf675006403ba42d3f81131d71c754878053f390fa2fb4799555ece77 all runs: OK false negative chance: 0.000 # git bisect good ccdc575a2852c5f2c71d5dad5c3fe21822f860fa Bisecting: 17 revisions left to test after this (roughly 4 steps) [145355cdd895a3d3dd49e5f442666051b3d6f5cc] Merge branch 'main' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git testing commit 145355cdd895a3d3dd49e5f442666051b3d6f5cc gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8e43b3dfebfae6d5ac97d02d56bf6ce273954f67c792d11b4bc4e4b50fff0f9d all runs: OK false negative chance: 0.000 # git bisect good 145355cdd895a3d3dd49e5f442666051b3d6f5cc Bisecting: 8 revisions left to test after this (roughly 3 steps) [f8080a1e263fd5ec59d144d61bcf7036b1ae9099] Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec.git testing commit f8080a1e263fd5ec59d144d61bcf7036b1ae9099 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3f778a08e7693ffaa34780598ea2b3e6ea1f460d99adece5dee823c59f9d7e07 all runs: OK false negative chance: 0.000 # git bisect good f8080a1e263fd5ec59d144d61bcf7036b1ae9099 Bisecting: 4 revisions left to test after this (roughly 2 steps) [3ce67e3793f48c1b9635beb9bb71116ca1e51b58] netfilter: nf_tables: do not allow mismatch field size and set key length testing commit 3ce67e3793f48c1b9635beb9bb71116ca1e51b58 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dfb56ad4a6d2fcc0a26fe2b12aa601fd353aef4a8e9fbab5bebdd1514721b6d3 all runs: OK false negative chance: 0.000 # git bisect good 3ce67e3793f48c1b9635beb9bb71116ca1e51b58 Bisecting: 2 revisions left to test after this (roughly 1 step) [113661e07460a6604aacc8ae1b23695a89e7d4b3] netfilter: nf_tables: reject NFT_SET_CONCAT with not field length description testing commit 113661e07460a6604aacc8ae1b23695a89e7d4b3 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 692e4c8791cbd25fcfa6be97e1a3bdb02e3b2f7daac984f48dfec28760ec7240 all runs: OK false negative chance: 0.000 # git bisect good 113661e07460a6604aacc8ae1b23695a89e7d4b3 Bisecting: 0 revisions left to test after this (roughly 1 step) [080898f8e782734987f127c73a69ebeab7b5f5e8] netfilter: ipset: fix performance regression in swap operation testing commit 080898f8e782734987f127c73a69ebeab7b5f5e8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b124160db548971975b24c6d90aefd2c7041f2361cd8c46b6c70d17f961ff801 all runs: crashed: WARNING: suspicious RCU usage in hash_ip4_destroy representative crash: WARNING: suspicious RCU usage in hash_ip4_destroy, types: [LOCKDEP] # git bisect bad 080898f8e782734987f127c73a69ebeab7b5f5e8 Bisecting: 0 revisions left to test after this (roughly 0 steps) [d6938c1c76c64f42363d0d1f051e1b4641c2ad40] ipvs: avoid stat macros calls from preemptible context testing commit d6938c1c76c64f42363d0d1f051e1b4641c2ad40 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3ea2b63ee570899c6433f081e91cdcb5ae20d93d053d5a38369ebbc238a2c23f all runs: OK false negative chance: 0.000 # git bisect good d6938c1c76c64f42363d0d1f051e1b4641c2ad40 080898f8e782734987f127c73a69ebeab7b5f5e8 is the first bad commit commit 080898f8e782734987f127c73a69ebeab7b5f5e8 Author: Jozsef Kadlecsik Date: Tue Jan 16 17:29:56 2024 +0100 netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronize_rcu() added to the swap function unnecessarily slows it down: it can safely be moved to destroy and use call_rcu() instead. Thus we can get back the same performance and preventing the race condition at the same time. Fixes: 28628fa952fe ("netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test") Link: https://lore.kernel.org/lkml/C0829B10-EAA6-4809-874E-E1E9C05A8D84@automattic.com/ Reported-by: Ale Crismani Reported-by: David Wang <00107082@163.com Tested-by: Ale Crismani Tested-by: David Wang <00107082@163.com Signed-off-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso include/linux/netfilter/ipset/ip_set.h | 2 ++ net/netfilter/ipset/ip_set_core.c | 31 +++++++++++++++++++++++-------- 2 files changed, 25 insertions(+), 8 deletions(-) accumulated error probability: 0.00 culprit signature: b124160db548971975b24c6d90aefd2c7041f2361cd8c46b6c70d17f961ff801 parent signature: 3ea2b63ee570899c6433f081e91cdcb5ae20d93d053d5a38369ebbc238a2c23f revisions tested: 23, total time: 9h59m59.5054423s (build: 5h1m28.70911231s, test: 3h26m59.907952499s) first bad commit: 080898f8e782734987f127c73a69ebeab7b5f5e8 netfilter: ipset: fix performance regression in swap operation recipients (to): ["ale.crismani@automattic.com" "kadlec@netfilter.org" "pablo@netfilter.org"] recipients (cc): [] crash: WARNING: suspicious RCU usage in hash_ip4_destroy ============================= WARNING: suspicious RCU usage 6.7.0-syzkaller #0 Not tainted ----------------------------- net/netfilter/ipset/ip_set_hash_gen.h:456 suspicious rcu_dereference_protected() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor.0/2148: #0: ffffffff831de040 (rcu_callback){....}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline] #0: ffffffff831de040 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2152 [inline] #0: ffffffff831de040 (rcu_callback){....}-{0:0}, at: rcu_core+0x2d3/0x980 kernel/rcu/tree.c:2431 stack backtrace: CPU: 1 PID: 2148 Comm: syz-executor.0 Not tainted 6.7.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 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:6712 hash_ip4_destroy+0x132/0x140 net/netfilter/ipset/ip_set_hash_gen.h:456 ip_set_destroy_set+0x13/0x50 net/netfilter/ipset/ip_set_core.c:1180 rcu_do_batch kernel/rcu/tree.c:2158 [inline] rcu_core+0x380/0x980 kernel/rcu/tree.c:2431 __do_softirq+0x16e/0x43c kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0x9a/0xf0 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0033:0x7f7cdba7eb27 Code: f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 b8 29 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:00007ffdfecee958 EFLAGS: 00000206 RAX: 0000000000000003 RBX: 0000000000000003 RCX: 00007f7cdba7eb27 RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 00007ffdfecef0ac R08: 00007ffdfecee9ac R09: 00007ffdfeceed97 R10: 00007ffdfeceea00 R11: 0000000000000206 R12: 00007f7cdbb7bd00 R13: 000000000000cd9e R14: 000000000000cd9b R15: 00007f7cdbb7dec0