ci starts bisection 2024-02-06 13:33:25.084813833 +0000 UTC m=+56.588076705 bisecting cause commit starting from 021533194476035883300d60fbb3136426ac8ea5 building syzkaller on d61103fc7c348a4ab85310b9a08c1f05f47a8655 ensuring issue is reproducible on original commit 021533194476035883300d60fbb3136426ac8ea5 testing commit 021533194476035883300d60fbb3136426ac8ea5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7621f6585469c15e3237ad9fef03b62e083eb64834d6b03d6f935ffc42149e0e all runs: crashed: WARNING: suspicious RCU usage in hash_netportnet6_destroy representative crash: WARNING: suspicious RCU usage in hash_netportnet6_destroy, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 021533194476035883300d60fbb3136426ac8ea5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78df8ee6c99e8853241e921431b4f6ac4efbad72e9fa32fb2929fefa18730018 all runs: crashed: WARNING: suspicious RCU usage in hash_netportnet6_destroy representative crash: WARNING: suspicious RCU usage in hash_netportnet6_destroy, 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=3932 full=7955 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 [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 021533194476035883300d60fbb3136426ac8ea5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4993d4ca65c1dd453f5046e76edd0f7bc9562b3272cf0d893ba8451861a6ef6a all runs: crashed: WARNING: suspicious RCU usage in hash_netportnet6_destroy representative crash: WARNING: suspicious RCU usage in hash_netportnet6_destroy, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG KASAN ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 021533194476035883300d60fbb3136426ac8ea5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 839af9054f58738e205c128dab47e567d520ee06e2b64da34fdf0da642974a43 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 021533194476035883300d60fbb3136426ac8ea5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1da950ead99e9b5a52d8a66db4b822238547bddad1c73b40c226f179707b8635 all runs: crashed: WARNING: suspicious RCU usage in hash_netportnet6_destroy representative crash: WARNING: suspicious RCU usage in hash_netportnet6_destroy, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 021533194476035883300d60fbb3136426ac8ea5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0f0f7c85e6de5455458275e2170e3f5389e8bfb0ea580f0a93a77f56ce5d6569 all runs: crashed: WARNING: suspicious RCU usage in hash_netportnet6_destroy representative crash: WARNING: suspicious RCU usage in hash_netportnet6_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 021533194476035883300d60fbb3136426ac8ea5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 085df358d2458230364b37e83d3e535d737ef1400e0860a20414e526b1940d89 all runs: crashed: WARNING: suspicious RCU usage in hash_netportnet6_destroy representative crash: WARNING: suspicious RCU usage in hash_netportnet6_destroy, types: [LOCKDEP] the chunk can be dropped minimized to 404 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI BLK_DEV_ZONED CMA COMMON_CLK DAX DLM 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 EVM_EXTRA_SMACK_XATTRS 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 GCC_NO_STRINGOP_OVERFLOW 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_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_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_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 [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: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d9031dfa279c0350f21b656a612c4d52a5c0ce9b22c75b457a883eaaa105e4f2 all runs: OK false negative chance: 0.000 # git bisect start 021533194476035883300d60fbb3136426ac8ea5 0dd3ee31125508cd67f7e7172247f05b7fd1753a Bisecting: 7375 revisions left to test after this (roughly 13 steps) [ba5afb9a84df2e6b26a1b6389b98849cd16ea757] fs: rework listmount() implementation testing commit ba5afb9a84df2e6b26a1b6389b98849cd16ea757 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e75ae42b818b821440f9d35117b5d87b2d2bf89cfe813b61d735b60176e209ad all runs: OK false negative chance: 0.000 # git bisect good ba5afb9a84df2e6b26a1b6389b98849cd16ea757 Bisecting: 3690 revisions left to test after this (roughly 12 steps) [eebe75827b73b0a61e84acd2033ce304a3166d70] Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux testing commit eebe75827b73b0a61e84acd2033ce304a3166d70 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eaa1233d05c215c577d756952de91d93aab1ba2de6caec29352bce6338d46c35 all runs: OK false negative chance: 0.000 # git bisect good eebe75827b73b0a61e84acd2033ce304a3166d70 Bisecting: 1848 revisions left to test after this (roughly 11 steps) [a2ded784cd7fd83e567829637068cd86aeffbeaf] Merge tag 'trace-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace testing commit a2ded784cd7fd83e567829637068cd86aeffbeaf gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5754ee805432b557a65583be36b2f3369d0c209a26000a2225debcd4cf51a0ab all runs: OK false negative chance: 0.000 # git bisect good a2ded784cd7fd83e567829637068cd86aeffbeaf Bisecting: 998 revisions left to test after this (roughly 10 steps) [57f22c8dab6b266ae36b89b073a4a33dea71e762] Merge tag 'strlcpy-removal-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux testing commit 57f22c8dab6b266ae36b89b073a4a33dea71e762 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 802b50f737cbee1c4aeb71e50d76d34865b30e63848f9385a7255a2bcae4e7d4 all runs: OK false negative chance: 0.000 # git bisect good 57f22c8dab6b266ae36b89b073a4a33dea71e762 Bisecting: 514 revisions left to test after this (roughly 9 steps) [987940f05735a960dd143214f7cc2d699885b625] Merge tag 'drm-misc-fixes-for-v6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes testing commit 987940f05735a960dd143214f7cc2d699885b625 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b418ceaca43515bc506082947d93c007394d76d249cac14246020a52b662b07f all runs: OK false negative chance: 0.000 # git bisect good 987940f05735a960dd143214f7cc2d699885b625 Bisecting: 256 revisions left to test after this (roughly 8 steps) [93561eefbf87c0a57e15ebf647895e9ca83911c7] Merge tag 'nf-24-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf testing commit 93561eefbf87c0a57e15ebf647895e9ca83911c7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3ec96423affc9b428fd5dc546c39a0ca78f1c0cf478a9ed944a21aeef77d35d5 all runs: crashed: WARNING: suspicious RCU usage in hash_netportnet6_destroy representative crash: WARNING: suspicious RCU usage in hash_netportnet6_destroy, types: [LOCKDEP] # git bisect bad 93561eefbf87c0a57e15ebf647895e9ca83911c7 Bisecting: 159 revisions left to test after this (roughly 7 steps) [0a5bd0ffe790511d802e7f40898429a89e2487df] Merge branch 'tsnep-xdp-fixes' testing commit 0a5bd0ffe790511d802e7f40898429a89e2487df gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 285072417c6fbc544b20c7ab5329ebc521001e8b918bc456fa601a690a9b1046 all runs: OK false negative chance: 0.000 # git bisect good 0a5bd0ffe790511d802e7f40898429a89e2487df Bisecting: 79 revisions left to test after this (roughly 6 steps) [cefa98e806fd4e2a5e2047457a11ae5f17b8f621] nfp: flower: add hardware offload check for post ct entry testing commit cefa98e806fd4e2a5e2047457a11ae5f17b8f621 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3886742609caeebbd1b433808a30e990af9ad17c1149dde3b5f84227c2afa207 all runs: OK false negative chance: 0.000 # git bisect good cefa98e806fd4e2a5e2047457a11ae5f17b8f621 Bisecting: 39 revisions left to test after this (roughly 5 steps) [d9407ff11809c6812bb84fe7be9c1367d758e5c8] pds_core: Prevent health thread from running during reset/remove testing commit d9407ff11809c6812bb84fe7be9c1367d758e5c8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f6d4c5ba958dcdda241b9695e077e2e5d247b562165a19cf5150d30b3132840b all runs: OK false negative chance: 0.000 # git bisect good d9407ff11809c6812bb84fe7be9c1367d758e5c8 Bisecting: 19 revisions left to test after this (roughly 4 steps) [cf6601e289a2b975fac09d1bcb97d0ee1029cb84] Merge branch 'selftests-net-more-small-fixes' testing commit cf6601e289a2b975fac09d1bcb97d0ee1029cb84 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e4c23898b5d29070fb54cc53bf53adf09dd0b55995a05b1860f8f4736e133188 all runs: OK false negative chance: 0.000 # git bisect good cf6601e289a2b975fac09d1bcb97d0ee1029cb84 Bisecting: 9 revisions left to test after this (roughly 3 steps) [31ee4ad86afd6ed6f4bb1b38c43011216080c42a] selftests: mptcp: join: stop transfer when check is done (part 1) testing commit 31ee4ad86afd6ed6f4bb1b38c43011216080c42a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a9e9fd479f65aac4f7d8b439fb057c849830a4507bad128e02e001761163cc30 all runs: OK false negative chance: 0.000 # git bisect good 31ee4ad86afd6ed6f4bb1b38c43011216080c42a Bisecting: 4 revisions left to test after this (roughly 2 steps) [259eb32971e9eb24d1777a28d82730659f50fdcb] netfilter: nf_log: replace BUG_ON by WARN_ON_ONCE when putting logger testing commit 259eb32971e9eb24d1777a28d82730659f50fdcb gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 400a51bcd57b5cc2f31fb625d51cf9aca75066f3601a4d97e672f26d4faf9f02 all runs: crashed: WARNING: suspicious RCU usage in hash_netportnet6_destroy representative crash: WARNING: suspicious RCU usage in hash_netportnet6_destroy, types: [LOCKDEP] # git bisect bad 259eb32971e9eb24d1777a28d82730659f50fdcb Bisecting: 2 revisions left to test after this (roughly 1 step) [776d451648443f9884be4a1b4e38e8faf1c621f9] netfilter: nf_tables: restrict tunnel object to NFPROTO_NETDEV testing commit 776d451648443f9884be4a1b4e38e8faf1c621f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a254e0aba47c39e74e090cf8c9cc7613316c61c3438c5b4a3a6687c513c22712 all runs: OK false negative chance: 0.000 # git bisect good 776d451648443f9884be4a1b4e38e8faf1c621f9 Bisecting: 0 revisions left to test after this (roughly 1 step) [97f7cf1cd80eeed3b7c808b7c12463295c751001] netfilter: ipset: fix performance regression in swap operation testing commit 97f7cf1cd80eeed3b7c808b7c12463295c751001 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e68d51589b819ea791df86bce5ba1d64b1eba0308cdca4031d3c8c6f3d4d5f48 all runs: crashed: WARNING: suspicious RCU usage in hash_netportnet6_destroy representative crash: WARNING: suspicious RCU usage in hash_netportnet6_destroy, types: [LOCKDEP] # git bisect bad 97f7cf1cd80eeed3b7c808b7c12463295c751001 Bisecting: 0 revisions left to test after this (roughly 0 steps) [6e348067ee4bc5905e35faa3a8fafa91c9124bc7] netfilter: conntrack: check SCTP_CID_SHUTDOWN_ACK for vtag setting in sctp_new testing commit 6e348067ee4bc5905e35faa3a8fafa91c9124bc7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b338524c991c4ec08f29ca3e963f9e0ef096f2d887a3f00b4b4e64eaaa3bce2d all runs: OK false negative chance: 0.000 # git bisect good 6e348067ee4bc5905e35faa3a8fafa91c9124bc7 97f7cf1cd80eeed3b7c808b7c12463295c751001 is the first bad commit commit 97f7cf1cd80eeed3b7c808b7c12463295c751001 Author: Jozsef Kadlecsik Date: Mon Jan 29 10:57:01 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. Eric Dumazet pointed out that simply calling the destroy functions as rcu callback does not work: sets with timeout use garbage collectors which need cancelling at destroy which can wait. Therefore the destroy functions are split into two: cancelling garbage collectors safely at executing the command received by netlink and moving the remaining part only into the rcu callback. Link: https://lore.kernel.org/lkml/C0829B10-EAA6-4809-874E-E1E9C05A8D84@automattic.com/ Fixes: 28628fa952fe ("netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test") Reported-by: Ale Crismani Reported-by: David Wang <00107082@163.com> 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 | 4 ++++ net/netfilter/ipset/ip_set_bitmap_gen.h | 14 ++++++++++--- net/netfilter/ipset/ip_set_core.c | 37 +++++++++++++++++++++++++-------- net/netfilter/ipset/ip_set_hash_gen.h | 15 ++++++++++--- net/netfilter/ipset/ip_set_list_set.c | 13 +++++++++--- 5 files changed, 65 insertions(+), 18 deletions(-) accumulated error probability: 0.00 culprit signature: e68d51589b819ea791df86bce5ba1d64b1eba0308cdca4031d3c8c6f3d4d5f48 parent signature: b338524c991c4ec08f29ca3e963f9e0ef096f2d887a3f00b4b4e64eaaa3bce2d revisions tested: 23, total time: 9h50m29.095939898s (build: 3h11m34.901793793s, test: 4h19m5.730277896s) first bad commit: 97f7cf1cd80eeed3b7c808b7c12463295c751001 netfilter: ipset: fix performance regression in swap operation recipients (to): ["00107082@163.com" "kadlec@netfilter.org" "pablo@netfilter.org"] recipients (cc): [] crash: WARNING: suspicious RCU usage in hash_netportnet6_destroy ============================= WARNING: suspicious RCU usage 6.7.0-syzkaller #0 Not tainted ----------------------------- net/netfilter/ipset/ip_set_hash_gen.h:455 suspicious rcu_dereference_protected() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by swapper/1/0: #0: ffffffff835d9490 (rcu_callback){....}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #0: ffffffff835d9490 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2152 [inline] #0: ffffffff835d9490 (rcu_callback){....}-{0:0}, at: rcu_core+0x426/0x970 kernel/rcu/tree.c:2433 stack backtrace: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.7.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xe0 lib/dump_stack.c:106 lockdep_rcu_suspicious+0x15d/0x1b0 kernel/locking/lockdep.c:6712 hash_netportnet6_destroy+0x61/0x100 net/netfilter/ipset/ip_set_hash_gen.h:455 ip_set_destroy_set net/netfilter/ipset/ip_set_core.c:1180 [inline] ip_set_destroy_set_rcu+0x1b/0x60 net/netfilter/ipset/ip_set_core.c:1190 rcu_do_batch kernel/rcu/tree.c:2158 [inline] rcu_core+0x466/0x970 kernel/rcu/tree.c:2433 __do_softirq+0x157/0x3e9 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu+0x79/0x110 kernel/softirq.c:632 irq_exit_rcu+0x9/0x30 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x92/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline] RIP: 0010:acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:113 Code: 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 18 65 9a 7d 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d d0 03 41 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffffc9000009be50 EFLAGS: 00000246 RAX: ffff888101299b80 RBX: ffff888100af4064 RCX: ffff888237d00000 RDX: 0000000000000001 RSI: ffff888100af4000 RDI: ffff888100af4064 RBP: ffff888100bba800 R08: 0000000c729ac0fa R09: 00000000000000ff R10: 0000000000000003 R11: ffffffff82686c50 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8369b4e0 acpi_idle_enter+0xc1/0xe0 drivers/acpi/processor_idle.c:707 cpuidle_enter_state+0xff/0x260 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x28/0x40 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:134 [inline] cpuidle_idle_call kernel/sched/idle.c:215 [inline] do_idle+0x1c8/0x270 kernel/sched/idle.c:312 cpu_startup_entry+0x24/0x30 kernel/sched/idle.c:410 start_secondary+0x99/0xa0 arch/x86/kernel/smpboot.c:336 secondary_startup_64_no_verify+0x15f/0x16b ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 65 48 8b 05 18 65 9a mov %gs:0x7d9a6518(%rip),%rax # 0x7d9a652a 11: 7d 12: 48 f7 00 08 00 00 00 testq $0x8,(%rax) 19: 75 10 jne 0x2b 1b: 66 90 xchg %ax,%ax 1d: 0f 00 2d d0 03 41 00 verw 0x4103d0(%rip) # 0x4103f4 24: f3 0f 1e fa endbr64 28: fb sti 29: f4 hlt * 2a: fa cli <-- trapping instruction 2b: c3 ret 2c: cc int3 2d: cc int3 2e: cc int3 2f: cc int3 30: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 37: 00 00 00 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop