ci starts bisection 2025-01-19 08:53:47.027944918 +0000 UTC m=+112363.360046112
bisecting cause commit starting from 595523945be0a5a2f12a1c04772383293fbc04a1
building syzkaller on f2cb035c8f931efff4a020b164e657f16f51934b
ensuring issue is reproducible on original commit 595523945be0a5a2f12a1c04772383293fbc04a1

testing commit 595523945be0a5a2f12a1c04772383293fbc04a1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3bad31d7daf69b3d254c7fd440d4d1641d25e428687a6ab1cc1bae4644d05195
run #0: crashed: possible deadlock in n_tty_flush_buffer
run #1: crashed: possible deadlock in n_tty_flush_buffer
run #2: crashed: possible deadlock in n_tty_flush_buffer
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in n_tty_receive_buf_common
run #5: crashed: possible deadlock in n_tty_flush_buffer
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in n_tty_flush_buffer
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: INFO: task hung in console_callback
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in n_tty_flush_buffer
run #14: crashed: possible deadlock in n_tty_flush_buffer
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: possible deadlock in n_tty_flush_buffer, types: [LOCKDEP]
check whether we can drop unnecessary instrumentation
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed
testing commit 595523945be0a5a2f12a1c04772383293fbc04a1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a2ff22eb0de041ee57f0bdd08ed0e384e94731e81567ce2c431b7aec84c4478d
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
kconfig minimization: base=4046 full=8243 leaves diff=2124
split chunks (needed=false): <2124>
split chunk #0 of len 2124 into 5 parts
testing without sub-chunk 1/5
testing commit 595523945be0a5a2f12a1c04772383293fbc04a1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9f33049056c90d72f50595c9d1557ab346e2cd678e6c75306b21beeb040c591c
run #0: crashed: possible deadlock in n_tty_receive_buf_common
run #1: crashed: possible deadlock in n_tty_flush_buffer
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in n_tty_flush_buffer
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: possible deadlock in tty_buffer_flush
run #17: crashed: possible deadlock in tty_buffer_flush
run #18: OK
run #19: crashed: INFO: task hung in console_callback
representative crash: possible deadlock in n_tty_receive_buf_common, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 2/5
testing commit 595523945be0a5a2f12a1c04772383293fbc04a1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
failed building 595523945be0a5a2f12a1c04772383293fbc04a1: drivers/gpu/drm/bridge/aux-bridge.c:116: undefined reference to `devm_drm_of_get_bridge'
testing without sub-chunk 3/5
testing commit 595523945be0a5a2f12a1c04772383293fbc04a1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0aafdfb89f11ef4d1ff226d3c07aeab97f2e2aa6789c21fb122decb823a1b0ed
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in n_tty_flush_buffer
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in n_tty_receive_buf_common
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in n_tty_flush_buffer
run #6: crashed: possible deadlock in n_tty_flush_buffer
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: possible deadlock in tty_buffer_flush
run #17: crashed: possible deadlock in tty_buffer_flush
run #18: crashed: possible deadlock in tty_buffer_flush
run #19: OK
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 4/5
testing commit 595523945be0a5a2f12a1c04772383293fbc04a1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 59c45032779284465ce3cc96e98ee8e7db7c0c5b3a576c6e35fe46148e452bfb
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in n_tty_receive_buf_common
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in n_tty_flush_buffer
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in n_tty_flush_buffer
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: possible deadlock in tty_buffer_flush
run #17: crashed: possible deadlock in tty_buffer_flush
run #18: crashed: possible deadlock in tty_buffer_flush
run #19: crashed: possible deadlock in tty_buffer_flush
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 5/5
testing commit 595523945be0a5a2f12a1c04772383293fbc04a1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ca2cb5bfba5fb3e8161bb54da2c1dea1a9c4b430910390858e0be3903ca5f31b
all runs: OK
false negative chance: 0.000
minimized to 849 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CHARGER_BQ24190 CMA COMMON_CLK CONTIG_ALLOC DAX DLM DRM DRM_BRIDGE DRM_I915 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 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 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_ZEROPLUS 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_DRIVER_CORE 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_PROTO_TCP IRQ_REMAP IRQ_TIME_ACCOUNTING KVM KVM_INTEL LAPB LCD_CLASS_DEVICE LIBNVDIMM MAC802154 MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER 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 NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND SPI SSB STAGING TAP TARGET_CORE TRANSPARENT_HUGEPAGE TUN TYPEC TYPEC_MUX_PI3USB30532 USB_AMD5536UDC USB_ATM USB_CDNS3 USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_GADGET USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE 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_ROLES_INTEL_XHCI 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_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_FS 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 WAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK 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]
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: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 587ca85d390c3be40a76734f5e46a20410646c545ac32da8bf4805b9adc973a2
run #0: crashed: possible deadlock in n_tty_receive_buf_common
run #1: crashed: possible deadlock in n_tty_receive_buf_common
run #2: crashed: possible deadlock in n_tty_flush_buffer
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in n_tty_flush_buffer
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in n_tty_flush_buffer
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: possible deadlock in tty_buffer_flush
run #17: crashed: possible deadlock in tty_buffer_flush
run #18: OK
run #19: OK
representative crash: possible deadlock in n_tty_receive_buf_common, types: [LOCKDEP]
testing release v6.11
testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c042bacdfa2c6e1ebe979fea007c176807cc32c74f0f8f79641013f00a4f807b
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in n_tty_flush_buffer
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in n_tty_receive_buf_common
run #4: crashed: possible deadlock in n_tty_flush_buffer
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: possible deadlock in tty_buffer_flush
run #17: OK
run #18: OK
run #19: OK
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v6.10
testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5067d414135f404495509f49347fd4128c2b885854186b5291d36fadcb390dfd
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in n_tty_flush_buffer
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in n_tty_receive_buf_common
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v6.8
testing commit e8f897f4afef0031fe618a8e94127a0934896aba gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4773ca84a378bbbdedd3edbc051185902b3db14d0d6d4b952c7ff9b600648d3b
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: possible deadlock in tty_buffer_flush
run #17: crashed: possible deadlock in tty_buffer_flush
run #18: crashed: possible deadlock in tty_buffer_flush
run #19: crashed: INFO: task hung in tty_buffer_flush
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v6.6
testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3c2236b21c8c55440035fa4c638f0d8461b904928b086ffbf5dfc5680e5e6b6b
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: possible deadlock in tty_buffer_flush
run #17: crashed: INFO: task hung in console_callback
run #18: crashed: INFO: task hung in do_con_write
run #19: crashed: INFO: task hung in tty_buffer_flush
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v6.4
testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: acb3125335480dd67f3564b536442f92654d57a5bcd13f5b3022fa4318653169
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: possible deadlock in tty_buffer_flush
run #17: crashed: INFO: task hung in tty_buffer_flush
run #18: crashed: INFO: task hung in con_flush_chars
run #19: crashed: INFO: task hung in tty_buffer_flush
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v6.2
testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1cffff641a8d37ad6502c84f61288e6011068e13a25fe0825547841494e1a72a
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: INFO: task hung in console_callback
run #17: crashed: INFO: task hung in console_callback
run #18: crashed: INFO: task hung in tty_buffer_flush
run #19: crashed: INFO: task hung in tty_buffer_flush
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v6.0
testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: adfac63bc65829d368efd95217922e3b09de5c0b85e67f1e2788adb0cfaa8d94
all runs: crashed: possible deadlock in tty_buffer_flush
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v5.17
testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9a0f41adc4a50f90dd7b2d4f3b276d32bcfcb8db3d53f8cf4ca19cc36f4d5217
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: possible deadlock in tty_buffer_flush
run #16: crashed: possible deadlock in tty_buffer_flush
run #17: crashed: possible deadlock in tty_buffer_flush
run #18: crashed: possible deadlock in tty_buffer_flush
run #19: crashed: INFO: task hung in do_con_write
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v5.14
testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 527bb37a7c5954c4b9c351fd77859c0a18ccfbfc9f0718ff4106ffae8c66b7bf
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: possible deadlock in tty_buffer_flush
run #12: crashed: possible deadlock in tty_buffer_flush
run #13: crashed: possible deadlock in tty_buffer_flush
run #14: crashed: possible deadlock in tty_buffer_flush
run #15: crashed: INFO: task hung in tty_buffer_flush
run #16: crashed: INFO: task hung in con_flush_chars
run #17: crashed: INFO: task hung in do_con_write
run #18: crashed: INFO: task hung in console_callback
run #19: crashed: INFO: task hung in tty_buffer_flush
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v5.11
testing commit f40ddce88593482919761f74910f42f4b84c004b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b43bd8d9fa93b5928fc5b91db74424d2917972612eb7d00bad44ee32a3dfee12
run #0: crashed: INFO: task hung in tty_buffer_flush
run #1: crashed: INFO: task hung in console_callback
run #2: crashed: INFO: task hung in do_con_write
run #3: crashed: INFO: task hung in tty_buffer_flush
run #4: crashed: INFO: task hung in do_con_write
run #5: crashed: INFO: task hung in do_con_write
run #6: crashed: INFO: task hung in console_callback
run #7: crashed: INFO: task hung in con_flush_chars
run #8: crashed: INFO: task hung in con_flush_chars
run #9: crashed: INFO: task hung in do_con_write
run #10: crashed: INFO: task hung in tty_buffer_flush
run #11: crashed: INFO: task hung in console_callback
run #12: crashed: INFO: task hung in do_con_write
run #13: crashed: INFO: task hung in do_con_write
run #14: crashed: INFO: task hung in console_callback
run #15: crashed: INFO: task hung in console_callback
run #16: crashed: INFO: task hung in do_con_write
run #17: crashed: INFO: task hung in tty_buffer_flush
run #18: crashed: INFO: task hung in do_con_write
run #19: crashed: INFO: task hung in console_callback
representative crash: INFO: task hung in tty_buffer_flush, types: [HANG]
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c gcc
compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 183c90e442708ca212e86af599dec61ace404c97e8afdf115fa99f1361d912e0
run #0: crashed: possible deadlock in tty_buffer_flush
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: INFO: task hung in do_con_write
run #12: crashed: INFO: task hung in con_flush_chars
run #13: crashed: INFO: task hung in console_callback
run #14: crashed: INFO: task hung in do_con_write
run #15: crashed: INFO: task hung in con_flush_chars
run #16: crashed: INFO: task hung in do_con_write
run #17: crashed: INFO: task hung in do_con_write
run #18: crashed: INFO: task hung in do_con_write
run #19: crashed: INFO: task hung in do_con_write
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP]
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e8ca6f7befe29ee2d423efa6bd5bb70c26fd83095fed38bc2ac97cfa598a1759
all runs: OK
false negative chance: 0.000
# git bisect start bcf876870b95592b52519ed4aafcf9d95999bc9c d5226fa6dbae0569ee43ecfc08bdcd6770fc4755
Bisecting: 23175 revisions left to test after this (roughly 15 steps)
[a943353d170e286dd3d877ac5aa15c1034cdfefc] Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

testing commit a943353d170e286dd3d877ac5aa15c1034cdfefc gcc
compiler: gcc version 8.4.1 20210217 (GCC)
failed building a943353d170e286dd3d877ac5aa15c1034cdfefc: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
# git bisect skip a943353d170e286dd3d877ac5aa15c1034cdfefc
Bisecting: 23153 revisions left to test after this (roughly 15 steps)
[d8836005236425cf3cfcc8967abd1d5c21f607f8] Merge branch 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

testing commit d8836005236425cf3cfcc8967abd1d5c21f607f8 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
failed building d8836005236425cf3cfcc8967abd1d5c21f607f8: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
# git bisect skip d8836005236425cf3cfcc8967abd1d5c21f607f8
Bisecting: 23153 revisions left to test after this (roughly 15 steps)
[05a5a7621ce66c142e081ffc24dd6ade6e912061] Btrfs: implement full reflink support for inline extents

testing commit 05a5a7621ce66c142e081ffc24dd6ade6e912061 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 4aea6f2b0448614bb154bfb26e361c97454d775ae68fbe1f636cfc0d904a8d62
all runs: OK
false negative chance: 0.000
# git bisect good 05a5a7621ce66c142e081ffc24dd6ade6e912061
Bisecting: 16395 revisions left to test after this (roughly 14 steps)
[316107119f473e764cf5e50437333c8b83bec0da] ethtool: propagate get_coalesce return value

testing commit 316107119f473e764cf5e50437333c8b83bec0da gcc
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4f7ce071362061e4cc2ee4f3e8a4175f0591312d757189e2273867f8a4a8bb7e
run #0: crashed: WARNING in __dev_mc_add
run #1: crashed: possible deadlock in tty_buffer_flush
run #2: crashed: possible deadlock in tty_buffer_flush
run #3: crashed: possible deadlock in tty_buffer_flush
run #4: crashed: possible deadlock in tty_buffer_flush
run #5: crashed: possible deadlock in tty_buffer_flush
run #6: crashed: possible deadlock in tty_buffer_flush
run #7: crashed: possible deadlock in tty_buffer_flush
run #8: crashed: possible deadlock in tty_buffer_flush
run #9: crashed: possible deadlock in tty_buffer_flush
run #10: crashed: possible deadlock in tty_buffer_flush
run #11: crashed: INFO: task hung in corrupted
run #12: crashed: INFO: task hung in corrupted
run #13: crashed: INFO: task hung in corrupted
run #14: crashed: INFO: task hung in corrupted
run #15: crashed: INFO: task hung in corrupted
run #16: crashed: INFO: task hung in corrupted
run #17: crashed: INFO: task hung in corrupted
run #18: crashed: INFO: task hung in corrupted
run #19: crashed: INFO: task hung in corrupted
representative crash: possible deadlock in tty_buffer_flush, types: [LOCKDEP WARNING]
# git bisect bad 316107119f473e764cf5e50437333c8b83bec0da
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[f14a9532ee30c68a56ff502c382860f674cc180c] Merge tag 'x86-urgent-2020-04-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

testing commit f14a9532ee30c68a56ff502c382860f674cc180c gcc
compiler: gcc version 8.4.1 20210217 (GCC)
failed building f14a9532ee30c68a56ff502c382860f674cc180c: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
# git bisect skip f14a9532ee30c68a56ff502c382860f674cc180c
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[d84478088780acdecfcf50a0e52b71cc4ab7c520] perf jevents: Support test events folder

testing commit d84478088780acdecfcf50a0e52b71cc4ab7c520 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1d9cdaa01ae00cea4c5c5e0278b5166061c9de2266c8059514eddd0c11af892a
run #0: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #1: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!, types: [UNKNOWN]
unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20
# git bisect skip d84478088780acdecfcf50a0e52b71cc4ab7c520
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[bbc25dadc7ed19f9d6b2e30980f0eb4c741bb8bf] drm/amdgpu: Correctly initialize thermal controller for GPUs with Powerplay table v0 (e.g Hawaii)

testing commit bbc25dadc7ed19f9d6b2e30980f0eb4c741bb8bf gcc
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.40
failed building bbc25dadc7ed19f9d6b2e30980f0eb4c741bb8bf: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
# git bisect skip bbc25dadc7ed19f9d6b2e30980f0eb4c741bb8bf
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[f2409865c23ff83e08e07be8fa5d5d9b96f61487] staging: exfat: remove exfat_buf_sync()

testing commit f2409865c23ff83e08e07be8fa5d5d9b96f61487 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 30e657c75bfe884450ce30805df843521ef5520c38a1560ebe109ec37071e735
run #0: OK
run #1: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!, types: [UNKNOWN]
unable to determine the verdict: 19 good runs (wanted 15), for bad wanted 10 in total, got 20
# git bisect skip f2409865c23ff83e08e07be8fa5d5d9b96f61487
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[b269426011bcfd97b7c3101abfe1a99147b6f40b] dmaengine: xilinx_dma: Add missing check for empty list

testing commit b269426011bcfd97b7c3101abfe1a99147b6f40b gcc
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.40
failed building b269426011bcfd97b7c3101abfe1a99147b6f40b: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
# git bisect skip b269426011bcfd97b7c3101abfe1a99147b6f40b
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[b642a2f9317b1b280502d8f3e82add2a4d3b8277] staging: qlge: qlge.h: remove excess newlines

testing commit b642a2f9317b1b280502d8f3e82add2a4d3b8277 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d8ceb51483965d60debccf501c538891229c73370347f00c319b5959a352e569
all runs: OK
false negative chance: 0.000
# git bisect good b642a2f9317b1b280502d8f3e82add2a4d3b8277
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[67f373122bcc5ee1b7b60e3c726b25f8e205da6b] Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git

testing commit 67f373122bcc5ee1b7b60e3c726b25f8e205da6b gcc
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.40
failed building 67f373122bcc5ee1b7b60e3c726b25f8e205da6b: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
# git bisect skip 67f373122bcc5ee1b7b60e3c726b25f8e205da6b
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[8fd390b89cc8ca786bc1b66d8a76512a6068b081] media: Split v4l2_pipeline_pm_use into v4l2_pipeline_pm_{get, put}

testing commit 8fd390b89cc8ca786bc1b66d8a76512a6068b081 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: bdcd04c469518136588cf54bb70f2bfe06aef878c2700716816665070fd69555
run #0: crashed: WARNING in __dev_mc_add
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: WARNING in __dev_mc_add, types: [WARNING]
unable to determine the verdict: 19 good runs (wanted 15), for bad wanted 10 in total, got 20
# git bisect skip 8fd390b89cc8ca786bc1b66d8a76512a6068b081
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[32927393dc1ccd60fb2bdc05b9e8e88753761469] sysctl: pass kernel pointers to ->proc_handler

testing commit 32927393dc1ccd60fb2bdc05b9e8e88753761469 gcc
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.40
failed building 32927393dc1ccd60fb2bdc05b9e8e88753761469: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
# git bisect skip 32927393dc1ccd60fb2bdc05b9e8e88753761469
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[d1b2828af0cc414356c18d7814b83ba33b472054] drm/i915: Fix modeset locks in sanitize_watermarks()

testing commit d1b2828af0cc414356c18d7814b83ba33b472054 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6122201c0b9bccb6c03cf7ffdf3ae9fa8a7ebe247a21590d242bc7d930165a08
all runs: boot failed: general protection fault in do_mount_root
unable to determine the verdict: 0 good runs (wanted 15), for bad wanted 10 in total, got 0
# git bisect skip d1b2828af0cc414356c18d7814b83ba33b472054
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[cf11e85fc08cc6a4fe3ac2ba2e610c962bf20bc3] mm: hugetlb: optionally allocate gigantic hugepages using cma

testing commit cf11e85fc08cc6a4fe3ac2ba2e610c962bf20bc3 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
failed building cf11e85fc08cc6a4fe3ac2ba2e610c962bf20bc3: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
# git bisect skip cf11e85fc08cc6a4fe3ac2ba2e610c962bf20bc3
Bisecting: 8214 revisions left to test after this (roughly 13 steps)
[9fed9000c5c6cacfcaaa48aff74818072ae294cc] bpf: Allow selecting reuseport socket from a SOCKMAP/SOCKHASH

testing commit 9fed9000c5c6cacfcaaa48aff74818072ae294cc gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e81b4e3539416216141e09f810db77b05134664504060063a3bd0fc25623be48
run #0: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #1: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #2: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #3: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #4: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!, types: [UNKNOWN]
# git bisect bad 9fed9000c5c6cacfcaaa48aff74818072ae294cc
Bisecting: 86 revisions left to test after this (roughly 6 steps)
[2bd5662d35c3d5c77172c1f5fadf98c6baf601bf] Merge branch 'sonic-next'

testing commit 2bd5662d35c3d5c77172c1f5fadf98c6baf601bf gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ebe8875e27f60f23af68429012706cdce5c85237f7b2a1b9a84b44ac94d17d5c
all runs: OK
false negative chance: 0.000
# git bisect good 2bd5662d35c3d5c77172c1f5fadf98c6baf601bf
Bisecting: 43 revisions left to test after this (roughly 6 steps)
[745a7ea72dc25ffe8c89a2a8d19022243dc8dadc] selftests: mlxsw: Remove deprecated test

testing commit 745a7ea72dc25ffe8c89a2a8d19022243dc8dadc gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c0cda630e541aecf4ece01ee9db4659e6ff63d5aae7e2b181894cea6c0e435fe
all runs: OK
false negative chance: 0.000
# git bisect good 745a7ea72dc25ffe8c89a2a8d19022243dc8dadc
Bisecting: 21 revisions left to test after this (roughly 5 steps)
[a178b4585865a4c756c41bc5376f63416b7d9271] bpf, sk_msg: Don't clear saved sock proto on restore

testing commit a178b4585865a4c756c41bc5376f63416b7d9271 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5deff432d9b110e64caf0ca955c3a43a904b69d415c35135b5ed701cd51fa8c0
run #0: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #1: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #2: crashed: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!, types: [UNKNOWN]
# git bisect bad a178b4585865a4c756c41bc5376f63416b7d9271
Bisecting: 10 revisions left to test after this (roughly 4 steps)
[5613f20c938102093df2c67c7c22d7d0b0d3e3fb] net/smc: reduce port_event scheduling

testing commit 5613f20c938102093df2c67c7c22d7d0b0d3e3fb gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c0cda630e541aecf4ece01ee9db4659e6ff63d5aae7e2b181894cea6c0e435fe
all runs: OK
false negative chance: 0.000
# git bisect good 5613f20c938102093df2c67c7c22d7d0b0d3e3fb
Bisecting: 5 revisions left to test after this (roughly 3 steps)
[45a4296b6e55ef2fbbe5946582822daf8f0f2e71] bpf, sockmap: Replace zero-length array with flexible-array member

testing commit 45a4296b6e55ef2fbbe5946582822daf8f0f2e71 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c0cda630e541aecf4ece01ee9db4659e6ff63d5aae7e2b181894cea6c0e435fe
all runs: OK
false negative chance: 0.000
# git bisect good 45a4296b6e55ef2fbbe5946582822daf8f0f2e71
Bisecting: 2 revisions left to test after this (roughly 2 steps)
[b182a66792feb706c62e50c31db8546ca4ff168e] net: ena: remove set but not used variable 'hash_key'

reproducer is flaky (0.39 repro chance estimate)
revisions tested: 32, total time: 12h13m8.341255838s (build: 5h58m23.79396413s, test: 5h55m23.417136686s)
error: bisection is taking too long (>12h0m0s), aborting