ci starts bisection 2024-11-25 07:07:22.360876406 +0000 UTC m=+226113.917913433 bisecting cause commit starting from fcc79e1714e8c2b8e216dc3149812edd37884eef building syzkaller on 68da6d951a345757b69b764ceb8dda1e9d65b038 ensuring issue is reproducible on original commit fcc79e1714e8c2b8e216dc3149812edd37884eef testing commit fcc79e1714e8c2b8e216dc3149812edd37884eef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0598b85055e4c8b1dea38f914a2e3479074545f1e7d4994e4b5a6d9ab117e656 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit fcc79e1714e8c2b8e216dc3149812edd37884eef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 370564d569936273924738253698dcc62a3505908078c0378de81e11663962cb run #0: crashed: possible deadlock in ip_mroute_setsockopt run #1: crashed: possible deadlock in ip_mroute_setsockopt run #2: crashed: possible deadlock in ip_mroute_setsockopt run #3: crashed: possible deadlock in ip_mroute_setsockopt run #4: crashed: possible deadlock in ip_mroute_setsockopt run #5: crashed: possible deadlock in ip_mroute_setsockopt run #6: crashed: possible deadlock in ip_mroute_setsockopt run #7: crashed: possible deadlock in siw_create_listen run #8: crashed: possible deadlock in siw_create_listen run #9: crashed: possible deadlock in siw_create_listen representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] the bug reproduces without the instrumentation disabling configs for [KASAN ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=4045 full=8211 leaves diff=2118 split chunks (needed=false): <2118> split chunk #0 of len 2118 into 5 parts testing without sub-chunk 1/5 disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit fcc79e1714e8c2b8e216dc3149812edd37884eef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c9581794fd3c0426b1b58fc71a66924666f13812e9b70401cad7d98dda839972 run #0: crashed: possible deadlock in ip_mroute_setsockopt run #1: crashed: possible deadlock in ip_mroute_setsockopt run #2: crashed: possible deadlock in ip_mroute_setsockopt run #3: crashed: possible deadlock in ip_mroute_setsockopt run #4: crashed: possible deadlock in ip_mroute_setsockopt run #5: crashed: possible deadlock in ip_mroute_setsockopt run #6: crashed: possible deadlock in ip_mroute_setsockopt run #7: crashed: possible deadlock in ip_mroute_setsockopt run #8: crashed: possible deadlock in ip_mroute_setsockopt run #9: crashed: possible deadlock in siw_create_listen representative crash: possible deadlock in ip_mroute_setsockopt, 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 fcc79e1714e8c2b8e216dc3149812edd37884eef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ede4046a1dcd4f8b85e363e084f62f74caa1223b597726603bcd33143d97aff1 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit fcc79e1714e8c2b8e216dc3149812edd37884eef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b59fbb96d8192ed23044d1f6fc7763bc33e0e55d258073c82a3a0ec5e61d5214 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, 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 fcc79e1714e8c2b8e216dc3149812edd37884eef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 79f679164a6b2cd460b5b8c751ee1b3d0346038fb6c92b7f904a60d2d0fb29bc all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit fcc79e1714e8c2b8e216dc3149812edd37884eef gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building fcc79e1714e8c2b8e216dc3149812edd37884eef: drivers/gpu/drm/bridge/aux-bridge.c:116: undefined reference to `devm_drm_of_get_bridge' minimized to 846 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL BT BT_BREDR BT_HIDP BXT_WC_PMIC_OPREGION CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC DAX DLM DRM DVB_CORE ENCRYPTED_KEYS EXTCON FB GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_NVIDIA_SHIELD HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_STEAM HID_THRUSTMASTER HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IOMMUFD IP_SCTP IRQ_REMAP KVM KVM_INTEL L2TP LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_MT6370 MFD_RETU MFD_VIPERBOARD MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 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RADIO_SI4713 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGMAP_SPI REGULATOR REGULATOR_FIXED_VOLTAGE REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 RMI4_F3A ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCREEN_INFO SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU 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USB_LINK_LAYER_TEST USB_LJCA USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_MV_U3D USB_MV_UDC USB_NET2272 USB_NET2272_DMA USB_NET2280 USB_NET_AQC111 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_ROLE_SWITCH USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_REALTEK USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEO VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS VXLAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_PURELIFI WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK X86_X2APIC X86_X32_ABI XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA Z3FOLD Z3FOLD_DEPRECATED ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE ZPOOL ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED] disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed picked [v6.12 v6.11 v6.10 v6.8 v6.6 v6.4 v6.2 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 35 release tags testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ac9b26124c8ee93079bb6d80bee4faccdab0c189e9924214d71438f5a065a483 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] 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: 245b9962c551ebc9142df61c27b0184d41c3be7af0b4062c0c952d9cfaba6c34 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] testing release v6.10 testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c9750bd6140ff28e581cba8c6469694a8f7641e53b35729fb3181c8e7d177481 all runs: OK false negative chance: 0.000 # git bisect start 98f7e32f20d28ec452afb208f9cffc08448a2652 0c3836482481200ead7b416ca80c68a29cfdaabd Bisecting: 7076 revisions left to test after this (roughly 13 steps) [b3ce7a30847a54a7f96a35e609303d8afecd460b] Merge tag 'drm-next-2024-07-18' of https://gitlab.freedesktop.org/drm/kernel testing commit b3ce7a30847a54a7f96a35e609303d8afecd460b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7431a97998293c2ff5bd0de12f2801a7a00dcf5c3d59383be6dce11b386ca289 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] # git bisect bad b3ce7a30847a54a7f96a35e609303d8afecd460b Bisecting: 3572 revisions left to test after this (roughly 12 steps) [51835949dda3783d4639cfa74ce13a3c9829de00] Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 51835949dda3783d4639cfa74ce13a3c9829de00 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4104f0364b6afe70735a9311d788bffee79b9e19949edb42c0d35714c170f874 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] # git bisect bad 51835949dda3783d4639cfa74ce13a3c9829de00 Bisecting: 2238 revisions left to test after this (roughly 11 steps) [e3950967f6e6b74a3606739ec50ed19f3398c7d8] Merge tag 'soc-dt-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit e3950967f6e6b74a3606739ec50ed19f3398c7d8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 187783b26e21842857a97df098738e7797d934a7b3f08b5f1ec07ebbba93a9d8 all runs: OK false negative chance: 0.000 # git bisect good e3950967f6e6b74a3606739ec50ed19f3398c7d8 Bisecting: 1119 revisions left to test after this (roughly 10 steps) [67e9847b0208ae02efbe42dbcda4c1a9a1a853cd] wifi: mt76: mt7925: remove the unused mt7925_mcu_set_chan_info testing commit 67e9847b0208ae02efbe42dbcda4c1a9a1a853cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b71018a7fe5d9e3b0259b1d338c6f3084550b8ec819f609731fcd37f189d315 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] # git bisect bad 67e9847b0208ae02efbe42dbcda4c1a9a1a853cd Bisecting: 559 revisions left to test after this (roughly 9 steps) [63b0aa8ea73f7a15912d5e6e44714f98bda8a03c] net: stmmac: dwmac-stm32: Separate out external clock selector testing commit 63b0aa8ea73f7a15912d5e6e44714f98bda8a03c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 880fe6f358fc2085a741ad54a4f2f101a8b00d31edbfb56ecd03d880535e090b all runs: OK false negative chance: 0.000 # git bisect good 63b0aa8ea73f7a15912d5e6e44714f98bda8a03c Bisecting: 314 revisions left to test after this (roughly 8 steps) [193b9b200224dab4eaec407eb2955303a521f5b6] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 193b9b200224dab4eaec407eb2955303a521f5b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4b4a4d4c81c461e70e9fb213af7bf4ff3e6ca9b4b1d238d67c0834fbac0bba15 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] # git bisect bad 193b9b200224dab4eaec407eb2955303a521f5b6 Bisecting: 122 revisions left to test after this (roughly 7 steps) [cd5a46ce6fa62abedd7740e4bd9f3d82041210ee] can: m_can: don't enable transceiver when probing testing commit cd5a46ce6fa62abedd7740e4bd9f3d82041210ee gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 91e37b36a5820b4927711439b199b3f0d9a3ac204c1b091928419c247188dfdf all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] # git bisect bad cd5a46ce6fa62abedd7740e4bd9f3d82041210ee Bisecting: 60 revisions left to test after this (roughly 6 steps) [ba8de796baf4bdc03530774fb284fe3c97875566] net: introduce sk_skb_reason_drop function testing commit ba8de796baf4bdc03530774fb284fe3c97875566 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 17a804817350d71257c8fb24cfa7f94eee8cb3eb6bf0a23d38f925d9b57c1139 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] # git bisect bad ba8de796baf4bdc03530774fb284fe3c97875566 Bisecting: 30 revisions left to test after this (roughly 5 steps) [934c29999b57b835d65442da6f741d5e27f3b584] net: micro-optimize skb_datagram_iter testing commit 934c29999b57b835d65442da6f741d5e27f3b584 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 663b7992bea0d34a567621b0fcd6b17de034254f9bea6eb8e6ff401c28edbf9a all runs: OK false negative chance: 0.000 # git bisect good 934c29999b57b835d65442da6f741d5e27f3b584 Bisecting: 14 revisions left to test after this (roughly 4 steps) [e845bb84fb6ec57f979cfba40e794c6e8b249585] Merge branch 'introduce-phy-mode-10g-qxgmii' testing commit e845bb84fb6ec57f979cfba40e794c6e8b249585 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2a604a1460d405d1ccee765e4df8e2226dce379bd871005795d8924e109f5a7b all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] # git bisect bad e845bb84fb6ec57f979cfba40e794c6e8b249585 Bisecting: 7 revisions left to test after this (roughly 3 steps) [4314175af49668ab20c0d60d7d7657986e1d0c7c] Merge branch 'net-smc-IPPROTO_SMC' testing commit 4314175af49668ab20c0d60d7d7657986e1d0c7c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8af6c9294f486dd54391bf92d39cc55336b204a6790c38e29d2a0625336122c2 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] # git bisect bad 4314175af49668ab20c0d60d7d7657986e1d0c7c Bisecting: 3 revisions left to test after this (roughly 2 steps) [f22b4b55edb507a2b30981e133b66b642be4d13f] net: make for_each_netdev_dump() a little more bug-proof testing commit f22b4b55edb507a2b30981e133b66b642be4d13f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9f0e3a1388f7e249a182316368073ea4b6f1179e17a260753480c3c24ed0f60a all runs: OK false negative chance: 0.000 # git bisect good f22b4b55edb507a2b30981e133b66b642be4d13f Bisecting: 1 revision left to test after this (roughly 1 step) [13543d02c90d6195b31bef8fb51dfeff77c0b368] net/smc: expose smc proto operations testing commit 13543d02c90d6195b31bef8fb51dfeff77c0b368 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cebd6f09f6d085125b3450908465aee9d67439ce4dcf89a8b9ff05ead06474f9 all runs: OK false negative chance: 0.000 # git bisect good 13543d02c90d6195b31bef8fb51dfeff77c0b368 Bisecting: 0 revisions left to test after this (roughly 0 steps) [d25a92ccae6bed02327b63d138e12e7806830f78] net/smc: Introduce IPPROTO_SMC testing commit d25a92ccae6bed02327b63d138e12e7806830f78 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 97c8ab84b5760f9d4ef3850b36ffc8fa4f1413ae7eaec06566fb7f9c05cf3f00 all runs: crashed: possible deadlock in ip_mroute_setsockopt representative crash: possible deadlock in ip_mroute_setsockopt, types: [LOCKDEP] # git bisect bad d25a92ccae6bed02327b63d138e12e7806830f78 d25a92ccae6bed02327b63d138e12e7806830f78 is the first bad commit commit d25a92ccae6bed02327b63d138e12e7806830f78 Author: D. Wythe Date: Fri Jun 14 02:00:30 2024 +0800 net/smc: Introduce IPPROTO_SMC This patch allows to create smc socket via AF_INET, similar to the following code, /* create v4 smc sock */ v4 = socket(AF_INET, SOCK_STREAM, IPPROTO_SMC); /* create v6 smc sock */ v6 = socket(AF_INET6, SOCK_STREAM, IPPROTO_SMC); There are several reasons why we believe it is appropriate here: 1. For smc sockets, it actually use IPv4 (AF-INET) or IPv6 (AF-INET6) address. There is no AF_SMC address at all. 2. Create smc socket in the AF_INET(6) path, which allows us to reuse the infrastructure of AF_INET(6) path, such as common ebpf hooks. Otherwise, smc have to implement it again in AF_SMC path. Signed-off-by: D. Wythe Reviewed-by: Wenjia Zhang Reviewed-by: Dust Li Tested-by: Niklas Schnelle Tested-by: Wenjia Zhang Signed-off-by: David S. Miller include/uapi/linux/in.h | 2 + net/smc/Makefile | 2 +- net/smc/af_smc.c | 16 ++++- net/smc/smc_inet.c | 159 ++++++++++++++++++++++++++++++++++++++++++++++++ net/smc/smc_inet.h | 22 +++++++ 5 files changed, 198 insertions(+), 3 deletions(-) create mode 100644 net/smc/smc_inet.c create mode 100644 net/smc/smc_inet.h accumulated error probability: 0.00 culprit signature: 97c8ab84b5760f9d4ef3850b36ffc8fa4f1413ae7eaec06566fb7f9c05cf3f00 parent signature: cebd6f09f6d085125b3450908465aee9d67439ce4dcf89a8b9ff05ead06474f9 revisions tested: 23, total time: 4h22m19.863007817s (build: 2h15m7.772847911s, test: 1h53m11.721215718s) first bad commit: d25a92ccae6bed02327b63d138e12e7806830f78 net/smc: Introduce IPPROTO_SMC recipients (to): ["alibuda@linux.alibaba.com" "davem@davemloft.net" "dust.li@linux.alibaba.com" "schnelle@linux.ibm.com" "wenjia@linux.ibm.com"] recipients (cc): [] crash: possible deadlock in ip_mroute_setsockopt lo speed is unknown, defaulting to 1000 iwpm_register_pid: Unable to send a nlmsg (client = 2) infiniband syz0: RDMA CMA: cma_listen_on_dev, error -98 lo speed is unknown, defaulting to 1000 ====================================================== WARNING: possible circular locking dependency detected 6.10.0-rc3-syzkaller #0 Not tainted ------------------------------------------------------ syz.2.15/4604 is trying to acquire lock: ffffffff843acc38 (rtnl_mutex){+.+.}-{4:4}, at: ip_mroute_setsockopt+0xa3/0x560 net/ipv4/ipmr.c:1369 but task is already holding lock: ffff888114eb8a48 (&smc->clcsock_release_lock){+.+.}-{4:4}, at: smc_setsockopt+0xcf/0x360 net/smc/af_smc.c:3064 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&smc->clcsock_release_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x99/0x9a0 kernel/locking/mutex.c:752 smc_switch_to_fallback+0x1f/0x330 net/smc/af_smc.c:902 smc_sendmsg+0x67/0x180 net/smc/af_smc.c:2779 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x8e/0xb0 net/socket.c:745 __sys_sendto+0x284/0x2e0 net/socket.c:2192 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0x21/0x30 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa0/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (sk_lock-AF_INET){+.+.}-{0:0}: lock_sock_nested net/core/sock.c:3543 [inline] lock_sock include/net/sock.h:1602 [inline] sock_set_reuseaddr+0x30/0x80 net/core/sock.c:782 siw_create_listen+0x77/0x590 drivers/infiniband/sw/siw/siw_cm.c:1776 iw_cm_listen+0x80/0xc0 drivers/infiniband/core/iwcm.c:582 cma_iw_listen drivers/infiniband/core/cma.c:2668 [inline] rdma_listen+0x384/0x420 drivers/infiniband/core/cma.c:3953 cma_listen_on_dev+0x16d/0x210 drivers/infiniband/core/cma.c:2727 cma_add_one+0x21d/0x340 drivers/infiniband/core/cma.c:5357 add_client_context+0x173/0x280 drivers/infiniband/core/device.c:721 enable_device_and_get+0xba/0x1c0 drivers/infiniband/core/device.c:1332 ib_register_device+0x684/0x740 drivers/infiniband/core/device.c:1420 siw_device_register drivers/infiniband/sw/siw/siw_main.c:72 [inline] siw_newlink+0x3a0/0x430 drivers/infiniband/sw/siw/siw_main.c:488 nldev_newlink+0x26f/0x2f0 drivers/infiniband/core/nldev.c:1778 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x266/0x310 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x245/0x330 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x34d/0x3e0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x8e/0xb0 net/socket.c:745 ____sys_sendmsg+0x1a7/0x200 net/socket.c:2585 ___sys_sendmsg+0x28f/0x2d0 net/socket.c:2639 __sys_sendmsg net/socket.c:2668 [inline] __do_sys_sendmsg net/socket.c:2677 [inline] __se_sys_sendmsg+0xf7/0x140 net/socket.c:2675 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa0/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (lock#6){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x99/0x9a0 kernel/locking/mutex.c:752 cma_init+0x18/0x100 drivers/infiniband/core/cma.c:5438 do_one_initcall+0x134/0x320 init/main.c:1267 do_initcall_level+0x92/0x100 init/main.c:1329 do_initcalls+0x3a/0x70 init/main.c:1345 kernel_init_freeable+0x182/0x1f0 init/main.c:1578 kernel_init+0x15/0x190 init/main.c:1467 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 -> #0 (rtnl_mutex){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x1245/0x24d0 kernel/locking/lockdep.c:5137 lock_acquire+0xeb/0x270 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x99/0x9a0 kernel/locking/mutex.c:752 ip_mroute_setsockopt+0xa3/0x560 net/ipv4/ipmr.c:1369 do_ip_setsockopt+0x523/0x10c0 net/ipv4/ip_sockglue.c:948 ip_setsockopt+0x39/0x80 net/ipv4/ip_sockglue.c:1417 smc_setsockopt+0x109/0x360 net/smc/af_smc.c:3072 do_sock_setsockopt net/socket.c:2312 [inline] __sys_setsockopt+0xef/0x110 net/socket.c:2335 __do_sys_setsockopt net/socket.c:2344 [inline] __se_sys_setsockopt net/socket.c:2341 [inline] __x64_sys_setsockopt+0x1c/0x30 net/socket.c:2341 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa0/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: rtnl_mutex --> sk_lock-AF_INET --> &smc->clcsock_release_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&smc->clcsock_release_lock); lock(sk_lock-AF_INET); lock(&smc->clcsock_release_lock); lock(rtnl_mutex); *** DEADLOCK *** 1 lock held by syz.2.15/4604: #0: ffff888114eb8a48 (&smc->clcsock_release_lock){+.+.}-{4:4}, at: smc_setsockopt+0xcf/0x360 net/smc/af_smc.c:3064 stack backtrace: CPU: 0 PID: 4604 Comm: syz.2.15 Not tainted 6.10.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xa3/0x100 lib/dump_stack.c:114 check_noncircular+0x119/0x140 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x1245/0x24d0 kernel/locking/lockdep.c:5137 lock_acquire+0xeb/0x270 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x99/0x9a0 kernel/locking/mutex.c:752 ip_mroute_setsockopt+0xa3/0x560 net/ipv4/ipmr.c:1369 do_ip_setsockopt+0x523/0x10c0 net/ipv4/ip_sockglue.c:948 ip_setsockopt+0x39/0x80 net/ipv4/ip_sockglue.c:1417 smc_setsockopt+0x109/0x360 net/smc/af_smc.c:3072 do_sock_setsockopt net/socket.c:2312 [inline] __sys_setsockopt+0xef/0x110 net/socket.c:2335 __do_sys_setsockopt net/socket.c:2344 [inline] __se_sys_setsockopt net/socket.c:2341 [inline] __x64_sys_setsockopt+0x1c/0x30 net/socket.c:2341 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa0/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f088ff7e819 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0890dcb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f0890135fa0 RCX: 00007f088ff7e819 RDX: 00000000000000d2 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f088fff175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0890135fa0 R15: 00007ffd0efb4158 syz.2.15 (4604) used greatest stack depth: 10752 bytes left