ci2 starts bisection 2026-09-05 02:21:00.988448471 +0000 UTC m=+13585.152402783
bisecting cause commit starting from 8ab1afb2eb246ab15b301cd255b5943d208a93c1
building syzkaller on 801f0966669a37e048adabf9e5f38ce52825ea82
ensuring issue is reproducible on original commit 8ab1afb2eb246ab15b301cd255b5943d208a93c1

testing commit 8ab1afb2eb246ab15b301cd255b5943d208a93c1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 7218c10d82edb9c7a75855ee11a0f6cbc0eddc2b17983a5ce366964de58314f8
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
run #4: crashed: WARNING in trace_rb_cpu_prepare
run #5: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
check whether we can drop unnecessary instrumentation
disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed
testing commit 8ab1afb2eb246ab15b301cd255b5943d208a93c1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
failed building 8ab1afb2eb246ab15b301cd255b5943d208a93c1: mv: cannot stat 'arch/x86/include/generated/asm/.tmp_cpufeaturemasks.h': No such file or directory
kconfig minimization: base=4167 full=8445 leaves diff=2104
split chunks (needed=false): <2104>
split chunk #0 of len 2104 into 5 parts
testing without sub-chunk 1/5
testing commit 8ab1afb2eb246ab15b301cd255b5943d208a93c1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 34763bdbef3c392df4ee01ca5c58888c90901af50ff137e02e776daea5fb2436
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
run #4: crashed: WARNING in trace_rb_cpu_prepare
run #5: crashed: WARNING in trace_rb_cpu_prepare
run #6: crashed: WARNING in trace_rb_cpu_prepare
run #7: crashed: WARNING in trace_rb_cpu_prepare
run #8: crashed: WARNING in trace_rb_cpu_prepare
run #9: crashed: WARNING in trace_rb_cpu_prepare
run #10: crashed: WARNING in trace_rb_cpu_prepare
run #11: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 2/5
testing commit 8ab1afb2eb246ab15b301cd255b5943d208a93c1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
failed building 8ab1afb2eb246ab15b301cd255b5943d208a93c1: mv: cannot stat 'arch/x86/include/generated/asm/.tmp_cpufeaturemasks.h': No such file or directory
testing without sub-chunk 3/5
testing commit 8ab1afb2eb246ab15b301cd255b5943d208a93c1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 3c911aabb5d40bff9ba0546b454d4541169756eaa165835d754088377c49e9e5
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
run #4: crashed: WARNING in trace_rb_cpu_prepare
run #5: crashed: WARNING in trace_rb_cpu_prepare
run #6: crashed: WARNING in trace_rb_cpu_prepare
run #7: crashed: WARNING in trace_rb_cpu_prepare
run #8: crashed: WARNING in trace_rb_cpu_prepare
run #9: crashed: WARNING in trace_rb_cpu_prepare
run #10: crashed: WARNING in trace_rb_cpu_prepare
run #11: crashed: WARNING in trace_rb_cpu_prepare
run #12: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 4/5
testing commit 8ab1afb2eb246ab15b301cd255b5943d208a93c1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: d3af488030604c0c97d41bc8b80b37ef54c0bd898b2cb7ebe2395bd8cffda467
run #0: crashed: WARNING in corrupted
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
run #4: crashed: WARNING in trace_rb_cpu_prepare
run #5: crashed: WARNING in trace_rb_cpu_prepare
run #6: crashed: WARNING in trace_rb_cpu_prepare
run #7: crashed: WARNING in trace_rb_cpu_prepare
run #8: crashed: WARNING in trace_rb_cpu_prepare
run #9: crashed: WARNING in trace_rb_cpu_prepare
run #10: crashed: WARNING in corrupted
run #11: crashed: WARNING in trace_rb_cpu_prepare
run #12: crashed: WARNING in trace_rb_cpu_prepare
run #13: crashed: WARNING in trace_rb_cpu_prepare
run #14: crashed: WARNING in trace_rb_cpu_prepare
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: WARNING in corrupted, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 5/5
testing commit 8ab1afb2eb246ab15b301cd255b5943d208a93c1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 2f6d34cf1ccab9633e1d5af7238da89a3d2a73d361a4e0aa7cd1a9fbadb06de7
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
minimized to 841 configs; suspects: [6LOWPAN ASUS_WMI ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CHARGER_BQ24190 COMMON_CLK CONTIG_ALLOC DAX DLM DRM DRM_BRIDGE DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HELPER DRM_GEM_SHMEM_HELPER DRM_GM12U320 DRM_GUD DRM_KMS_HELPER DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_SYSFB_HELPER DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS 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 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 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_ENCRYPTION FS_ENCRYPTION_ALGS FS_ENCRYPTION_INLINE_CRYPT FS_STACK FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FUSE_IO_URING FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENDWARFKSYMS GENERIC_PHY GENEVE 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_BANDWIDTH GTP HAS_LTO_CLANG HAS_SEPARATE_PREEMPT_RESCHED_BITS HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP 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_A4TECH HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLE HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BELKIN HID_BETOP_FF HID_BIGBEN_FF HID_CHERRY HID_CHICONY HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_CYPRESS HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_EZKEY HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF HID_GREENASIA HID_GT683R HID_HAPTIC HID_HOLTEK HID_HUAWEI HID_ICADE HID_ITE HID_JABRA HID_KENSINGTON HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2200 HID_MCP2221 HID_MEGAWORLD_FF HID_MICROSOFT HID_MONTEREY 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_REDRAGON 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_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_PSP 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_ACCESS_CORE 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 IO_URING_MOCK_FILE 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_TARGET_NPT IP6_NF_TARGET_REJECT 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_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_TARGET_ECN IP_NF_TARGET_REJECT IP_NF_TARGET_SYNPROXY 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 IRQ_TIME_ACCOUNTING KVM KVM_INTEL LAPB LCD_CLASS_DEVICE LEDS_CLASS_MULTICOLOR 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 MODVERSIONS 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 TUN TYPEC TYPEC_MUX_PI3USB30532 USB_AMD5536UDC USB_ATM USB_CHIPIDEA 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_GENERIC_PLAT 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_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 USERFAULTFD_RWP USERIO 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_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 VIRT_XFER_TO_GUEST_WORK VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXLAN WAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_MORSEMICRO WLAN_VENDOR_NXP WLAN_VENDOR_SILABS X86_FRED X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_IPTFS XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_BTREE_IN_MEM XFS_DRAIN_INTENTS XFS_FS XFS_LIVE_HOOKS XFS_MEMORY_BUFS XFS_ONLINE_REPAIR XFS_ONLINE_SCRUB XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS XOR_BLOCKS_ARCH YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE 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]
picked [v7.2 v7.1 v7.0 v6.18 v6.16 v6.14 v6.12 v6.10 v6.7 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 45 release tags
testing release v7.2
testing commit 8d3ae59288f1e7d58d76558a6ee96d533bc5019f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: e71e615d309d041ba08225fd91b25ae2b389bc2a633468623733aa6ff7ad0183
run #0: crashed: WARNING in free_ei
run #1: crashed: WARNING in free_ei
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in free_ei
run #4: crashed: WARNING in trace_rb_cpu_prepare
run #5: crashed: WARNING in trace_rb_cpu_prepare
run #6: crashed: WARNING in trace_rb_cpu_prepare
run #7: crashed: WARNING in free_ei
run #8: crashed: WARNING in free_ei
run #9: crashed: WARNING in free_ei
run #10: crashed: WARNING in free_ei
run #11: crashed: WARNING in free_ei
run #12: crashed: WARNING in free_ei
run #13: crashed: WARNING in free_ei
run #14: crashed: WARNING in free_ei
run #15: crashed: WARNING in free_ei
run #16: crashed: WARNING in free_ei
run #17: crashed: WARNING in free_ei
run #18: crashed: WARNING in free_ei
run #19: OK
representative crash: WARNING in free_ei, types: [WARNING]
testing release v7.1
testing commit 8cd9520d35a6c38db6567e97dd93b1f11f185dc6 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 32aae5179e249783f164ff2544e538be71a9850cb25f18bfac6569a262fe1400
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
run #4: crashed: WARNING in trace_rb_cpu_prepare
run #5: crashed: WARNING in trace_rb_cpu_prepare
run #6: crashed: WARNING in trace_rb_cpu_prepare
run #7: crashed: WARNING in trace_rb_cpu_prepare
run #8: crashed: WARNING in trace_rb_cpu_prepare
run #9: crashed: WARNING in trace_rb_cpu_prepare
run #10: crashed: WARNING in trace_rb_cpu_prepare
run #11: crashed: WARNING in trace_rb_cpu_prepare
run #12: crashed: WARNING in trace_rb_cpu_prepare
run #13: crashed: WARNING in trace_rb_cpu_prepare
run #14: crashed: WARNING in trace_rb_cpu_prepare
run #15: crashed: WARNING in trace_rb_cpu_prepare
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: WARNING in trace_rb_cpu_prepare, types: [WARNING]
testing release v7.0
testing commit 028ef9c96e96197026887c0f092424679298aae8 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: f5ea0c5f42aaf7ed1341de8c960d5f866a57a7867375a816f4e8950ff09086c6
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
run #4: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
testing release v6.18
testing commit 7d0a66e4bb9081d75c82ec4957c50034cb0ea449 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: e38cbbe828a4c0568f009fbf16bf6a7efa0af48ea575ad832f53d4f7e78a855d
all runs: OK
false negative chance: 0.000
# git bisect start 028ef9c96e96197026887c0f092424679298aae8 7d0a66e4bb9081d75c82ec4957c50034cb0ea449
Bisecting: 15649 revisions left to test after this (roughly 14 steps)
[bbabce5d4d2d20e087fd0b02ca5a4e7d363edd10] Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

testing commit bbabce5d4d2d20e087fd0b02ca5a4e7d363edd10 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 435d767382c082ebce9d6d93c84d622b5aa6b158d66f985dafd366481d6f4de4
all runs: OK
false negative chance: 0.000
# git bisect good bbabce5d4d2d20e087fd0b02ca5a4e7d363edd10
Bisecting: 8020 revisions left to test after this (roughly 13 steps)
[098b6e44cbaa2d526d06af90c862d13fb414a0ec] Merge tag 'devicetree-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

testing commit 098b6e44cbaa2d526d06af90c862d13fb414a0ec gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: dec07a12e5bd73f538a2bf3389ceb4dffead7e2a524a834ca32331d387a338cb
all runs: OK
false negative chance: 0.000
# git bisect good 098b6e44cbaa2d526d06af90c862d13fb414a0ec
Bisecting: 4009 revisions left to test after this (roughly 12 steps)
[956b9cbd7f156c8672dac94a00de3c6a0939c692] Merge tag 'kbuild-fixes-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

testing commit 956b9cbd7f156c8672dac94a00de3c6a0939c692 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 8ec6747f9ed3dfc344879caa1ab2b812a0f1b688f6e5d28e5e38c4bba40e8b3b
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20
# git bisect skip 956b9cbd7f156c8672dac94a00de3c6a0939c692
Bisecting: 4009 revisions left to test after this (roughly 12 steps)
[0100e495cdf0436bd4ed2dc034d385b44cb5993c] arm64: make runtime const not usable by modules

testing commit 0100e495cdf0436bd4ed2dc034d385b44cb5993c gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: c2d1f78443c7b3f359b221f18885e6fefefc5c0f50795e88ee6153bf4516bce6
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20
# git bisect skip 0100e495cdf0436bd4ed2dc034d385b44cb5993c
Bisecting: 4009 revisions left to test after this (roughly 12 steps)
[4906eccbfae3eec58f7bf27f2921dc365bedafec] perf tools: Add the legacy-cache.json to .gitignore

testing commit 4906eccbfae3eec58f7bf27f2921dc365bedafec gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 67d94e5a1d398c2430f0727232eb43820238c216499b1d1159d84acd55390306
all runs: OK
false negative chance: 0.000
# git bisect good 4906eccbfae3eec58f7bf27f2921dc365bedafec
Bisecting: 3963 revisions left to test after this (roughly 12 steps)
[42a6bd57ee9f930a72c26f863c72f666d6ed9ea5] io_uring: add IORING_OP_URING_CMD128 to opcode checks

testing commit 42a6bd57ee9f930a72c26f863c72f666d6ed9ea5 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 7bd3e5b34c3c5fabb40388a8c1994ba9efcc4c022e6a9823a23613b193a2b67d
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
run #4: crashed: WARNING in trace_rb_cpu_prepare
run #5: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
# git bisect bad 42a6bd57ee9f930a72c26f863c72f666d6ed9ea5
Bisecting: 1899 revisions left to test after this (roughly 11 steps)
[cb5573868ea85ddbc74dd9a917acd1e434d21390] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

testing commit cb5573868ea85ddbc74dd9a917acd1e434d21390 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: aabe3107ca7bc191cc9ef54cced19265f8a75320a269ce19ca59d2865acc3f57
all runs: OK
false negative chance: 0.000
# git bisect good cb5573868ea85ddbc74dd9a917acd1e434d21390
Bisecting: 941 revisions left to test after this (roughly 10 steps)
[2228d9cf7a562d1b0ca86bd529f6acb94f4bb80f] Merge tag 'leds-next-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

testing commit 2228d9cf7a562d1b0ca86bd529f6acb94f4bb80f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 2e2c3dcba2f418a4c9faed726efd330aad60d79a66986e0b7e6ac9dfb331ee25
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
# git bisect bad 2228d9cf7a562d1b0ca86bd529f6acb94f4bb80f
Bisecting: 499 revisions left to test after this (roughly 9 steps)
[ca4ee40bf13dbd3a4be3b40a00c33a1153d487e5] Partly revert "drm/hyperv: Remove reference to hyperv_fb driver"

testing commit ca4ee40bf13dbd3a4be3b40a00c33a1153d487e5 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: afcc19cd6b95541391f6221ee05dd913876646fcf5760d8dc847805fbd17691b
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
run #4: crashed: WARNING in trace_rb_cpu_prepare
run #5: crashed: WARNING in trace_rb_cpu_prepare
run #6: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
# git bisect bad ca4ee40bf13dbd3a4be3b40a00c33a1153d487e5
Bisecting: 251 revisions left to test after this (roughly 8 steps)
[f50822fd8675c68d294e89bd102f7b487ca3acd3] Merge tag 'platform-drivers-x86-v7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

testing commit f50822fd8675c68d294e89bd102f7b487ca3acd3 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 94a33dc184d7da7e63fb141dc6f526ff9a62f4832267fa32a97531c1f87cf314
all runs: OK
false negative chance: 0.000
# git bisect good f50822fd8675c68d294e89bd102f7b487ca3acd3
Bisecting: 121 revisions left to test after this (roughly 7 steps)
[dd530598bc02f9db0ebef644d8e2002aecf0ab15] Merge tag 'exfat-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

testing commit dd530598bc02f9db0ebef644d8e2002aecf0ab15 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 8efb393483cbcb4bed032edcd55ecc8ffd260edb8d69077b979e859503b4d6b7
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
# git bisect bad dd530598bc02f9db0ebef644d8e2002aecf0ab15
Bisecting: 68 revisions left to test after this (roughly 6 steps)
[52190933c37a96164b271f3f30c16099d9eb8c09] f2fs: sysfs: introduce critical_task_priority

testing commit 52190933c37a96164b271f3f30c16099d9eb8c09 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 8e4d2c5f33253301634a16f7df436e7ea682388b5ab37268e47bb9078e7fcd96
all runs: OK
false negative chance: 0.001
# git bisect good 52190933c37a96164b271f3f30c16099d9eb8c09
Bisecting: 33 revisions left to test after this (roughly 5 steps)
[af1eea12ad24f62d65714c5318841894278a7aaa] tracing: Use system_state in trace_printk_init_buffers()

testing commit af1eea12ad24f62d65714c5318841894278a7aaa gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 95b655f93410259022e8896a7b42075516b0b1faed56a669b712c2d65add2375
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20
# git bisect skip af1eea12ad24f62d65714c5318841894278a7aaa
Bisecting: 33 revisions left to test after this (roughly 5 steps)
[0914882bdda645e10cf536b474631e1a023b67c0] exfat: reduce unnecessary writes during mmap write

testing commit 0914882bdda645e10cf536b474631e1a023b67c0 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: e2b8b1a97699fd82bb40073df38c3bac4a98437b2bfd91d4d6a4548bb0098065
all runs: OK
false negative chance: 0.001
# git bisect good 0914882bdda645e10cf536b474631e1a023b67c0
Bisecting: 33 revisions left to test after this (roughly 5 steps)
[93c88d06accdeceee4fbd243b084d3749bcd96d7] tracing: Make tracing_update_buffers() take NULL for global_trace

testing commit 93c88d06accdeceee4fbd243b084d3749bcd96d7 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: afc3cb4631b8448d65480b5b3884e115816bc1b7657b628cc157f9ba81d17271
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
# git bisect bad 93c88d06accdeceee4fbd243b084d3749bcd96d7
Bisecting: 15 revisions left to test after this (roughly 4 steps)
[16718274ee75d24a21b10ebc8998c48cc14a656a] tracing: perf: Have perf tracepoint callbacks always disable preemption

testing commit 16718274ee75d24a21b10ebc8998c48cc14a656a gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 4a590a55ca984e5b668975b4024fc8afbaab629c1a906f6ae8d2671219ee7559
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
# git bisect bad 16718274ee75d24a21b10ebc8998c48cc14a656a
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[2d8b7f9bf8e6e7ae4e5a457bbaee2f84cdfd61f1] tracing: Have show_event_trigger/filter format a bit more in columns

testing commit 2d8b7f9bf8e6e7ae4e5a457bbaee2f84cdfd61f1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: b9dd597824930cb3e2b4154c5f8921d51ad2de93375591192c5f8653e34ffb8a
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20
# git bisect skip 2d8b7f9bf8e6e7ae4e5a457bbaee2f84cdfd61f1
Bisecting: 7 revisions left to test after this (roughly 3 steps)
[a9e0c5897a787751c373812ea21fabf955625b34] ftrace: Introduce and use ENTRIES_PER_PAGE_GROUP macro

testing commit a9e0c5897a787751c373812ea21fabf955625b34 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 23810a2ce63bf931dc0bffc41283086a246aa5854a27d58d45957d4bc38f2680
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
# git bisect bad a9e0c5897a787751c373812ea21fabf955625b34
Bisecting: 4 revisions left to test after this (roughly 2 steps)
[729757b96a662d87e334fe8b837707800d8fd551] tracing: Add show_event_filters to expose active event filters

testing commit 729757b96a662d87e334fe8b837707800d8fd551 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: d55bd3568148ca01abe2b8a7e555f02b1383537d02c024af2c0ee231973b531d
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20
# git bisect skip 729757b96a662d87e334fe8b837707800d8fd551
Bisecting: 4 revisions left to test after this (roughly 2 steps)
[6a80838814eea232a83fab3ac33282cd1243da5b] tracing: Add show_event_triggers to expose active event triggers

testing commit 6a80838814eea232a83fab3ac33282cd1243da5b gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 97649463aace388cd41f9466cd3b1f77056f141265a9f7a11c43314c084f4cce
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
unable to determine the verdict: 18 good runs (wanted 15), for bad wanted 10 in total, got 20
# git bisect skip 6a80838814eea232a83fab3ac33282cd1243da5b
Bisecting: 4 revisions left to test after this (roughly 2 steps)
[8aa76aa415897f6c1ba47d9f131fa463499c4169] ring-buffer: Use a housekeeping CPU to wake up waiters

testing commit 8aa76aa415897f6c1ba47d9f131fa463499c4169 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 83700a924085db5f898947081ca78c39378b563916d252a8b4bc63cb6ccde568
run #0: ignore: lost connection to test machine
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
run #3: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
# git bisect bad 8aa76aa415897f6c1ba47d9f131fa463499c4169
Bisecting: 3 revisions left to test after this (roughly 2 steps)
[e5136678b1c861ed7d0c985c1acdecd37f949937] tracing: Replace use of system_wq with system_dfl_wq

testing commit e5136678b1c861ed7d0c985c1acdecd37f949937 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 9153868dfb2f7070af9684f131e5a483fd25f064e844ebecb46d9f22e22ec245
all runs: OK
false negative chance: 0.021
# git bisect good e5136678b1c861ed7d0c985c1acdecd37f949937
Bisecting: 1 revision left to test after this (roughly 1 step)
[e4ef389e761bc37904f5cf64b99af5c6c603f2ba] tracing: Check the return value of tracing_update_buffers()

testing commit e4ef389e761bc37904f5cf64b99af5c6c603f2ba gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: d6f713ffa4208a4877770ed1f34da331a81668d2b590cee4a428f902cea93ead
run #0: crashed: WARNING in trace_rb_cpu_prepare
run #1: crashed: WARNING in trace_rb_cpu_prepare
run #2: crashed: WARNING in trace_rb_cpu_prepare
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 trace_rb_cpu_prepare, types: [WARNING]
# git bisect bad e4ef389e761bc37904f5cf64b99af5c6c603f2ba
There are only 'skip'ped commits left to test.
The first bad commit could be any of:
6a80838814eea232a83fab3ac33282cd1243da5b
729757b96a662d87e334fe8b837707800d8fd551
e4ef389e761bc37904f5cf64b99af5c6c603f2ba
We cannot bisect more!

accumulated error probability: 0.02
reproducer is flaky (0.16 repro chance estimate)
revisions tested: 32, total time: 10h52m22.069287084s (build: 3h36m39.631086942s, test: 5h59m19.050215187s)
bisection is inconclusive, the first bad commit could be any of:
6a80838814eea232a83fab3ac33282cd1243da5b
729757b96a662d87e334fe8b837707800d8fd551
e4ef389e761bc37904f5cf64b99af5c6c603f2ba