ci starts bisection 2024-12-17 00:28:06.930945752 +0000 UTC m=+36737.270562714 bisecting cause commit starting from dccbe2047a5b0859de24bf463dae9eeea8e01c1e building syzkaller on 7cbfbb3ab457b0a8ecf525a27a65a2078c5dcaa8 ensuring issue is reproducible on original commit dccbe2047a5b0859de24bf463dae9eeea8e01c1e testing commit dccbe2047a5b0859de24bf463dae9eeea8e01c1e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 870cf866082dac4599ecf5eca195bc8e2cfbf8e9f7d9cc2e4724618c0ee1869b run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: crashed: WARNING in posixtimer_send_sigqueue run #6: crashed: WARNING in posixtimer_send_sigqueue run #7: crashed: WARNING in posixtimer_send_sigqueue run #8: crashed: WARNING in posixtimer_send_sigqueue run #9: crashed: WARNING in posixtimer_send_sigqueue run #10: crashed: WARNING in posixtimer_send_sigqueue run #11: crashed: WARNING in posixtimer_send_sigqueue run #12: crashed: WARNING in posixtimer_send_sigqueue run #13: crashed: WARNING in posixtimer_send_sigqueue run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in posixtimer_send_sigqueue, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit dccbe2047a5b0859de24bf463dae9eeea8e01c1e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d5f2e673fe479a0c714b2dcff4ce6fec9e863bd78944e753a5de3f285b3ca7b2 all runs: OK false negative chance: 0.000 kconfig minimization: base=4045 full=8242 leaves diff=2126 split chunks (needed=false): <2126> split chunk #0 of len 2126 into 5 parts testing without sub-chunk 1/5 testing commit dccbe2047a5b0859de24bf463dae9eeea8e01c1e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a021831aef90a126d02f4b0cc95cdc4c7ddaa997e34b9b17076bcc6f5f4f783b all runs: crashed: WARNING in posixtimer_send_sigqueue representative crash: WARNING in posixtimer_send_sigqueue, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 testing commit dccbe2047a5b0859de24bf463dae9eeea8e01c1e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building dccbe2047a5b0859de24bf463dae9eeea8e01c1e: drivers/gpu/drm/bridge/aux-bridge.c:116: undefined reference to `devm_drm_of_get_bridge' testing without sub-chunk 3/5 testing commit dccbe2047a5b0859de24bf463dae9eeea8e01c1e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 76faf8d6b066c4431b39010dba93e86fd0da921670d62e5487b88d5d4edfa2d8 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 testing commit dccbe2047a5b0859de24bf463dae9eeea8e01c1e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 63b0e619f8038e09d660449638b8f84702bc25191e78820fda0a85c896a4cebb run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in posixtimer_send_sigqueue, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 testing commit dccbe2047a5b0859de24bf463dae9eeea8e01c1e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ea1d35b8de2496bc23f8ae728a649e4e1b720289c68817558479c563edd908e3 run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in posixtimer_send_sigqueue, types: [WARNING] the chunk can be dropped minimized to 852 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHARGER_BQ24190 CHECKPOINT_RESTORE CMA COMMON_CLK 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 HAMRADIO 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_NINTENDO 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_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS HSR 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_JOYSTICK INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSE 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_IPV6 IP_VS_LBLC IP_VS_LBLCR IP_VS_LC IP_VS_MH IP_VS_NFCT IP_VS_NQ IP_VS_OVF IP_VS_PE_SIP IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_PROTO_TCP IP_VS_PROTO_UDP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IRQ_TIME_ACCOUNTING IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_IMON_RAW IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TOY IR_TTUSBIR ISDN ISDN_CAPI JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_PXRC JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMMON KVM_COMPAT KVM_ELIDE_TLB_FLUSH_IF_YOUNG KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_GENERIC_HARDWARE_ENABLING KVM_GENERIC_MEMORY_ATTRIBUTES KVM_GENERIC_MMU_NOTIFIER KVM_GENERIC_PRE_FAULT_MEMORY KVM_GENERIC_PRIVATE_MEM KVM_HYPERV KVM_MMIO KVM_PRIVATE_MEM KVM_PROVE_MMU KVM_SW_PROTECTED_VM KVM_VFIO KVM_X86 KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LCD_CLASS_DEVICE LDM_PARTITION LEGACY_PTYS LIBCRC32C LIBNVDIMM LINEAR_RANGES LLC LLC2 LOCALVERSION_AUTO LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MAC802154 MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MDIO_MVUSB MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TEST_SUPPORT MEDIA_TUNER MEDIA_TUNER_MSI001 MEDIA_USB_SUPPORT MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_HOTREMOVE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_DLN2 MFD_SYSCON MFD_VIPERBOARD MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MINIX_FS MINIX_SUBPARTITION MIN_HEAP MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MODULE_SRCVERSION_ALL MODVERSIONS MOST MOST_USB_HDM MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MUSB_PIO_ONLY ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_BPF_LINK NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XTABLES_COMPAT NETFILTER_XT_CONNMARK NETFILTER_XT_MATCH_BPF NETFILTER_XT_MATCH_CGROUP NETFILTER_XT_MATCH_CLUSTER NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET NETFILTER_XT_TARGET_AUDIT NETFILTER_XT_TARGET_CHECKSUM NETFILTER_XT_TARGET_CLASSIFY NETFILTER_XT_TARGET_CONNMARK NETFILTER_XT_TARGET_CT NETFILTER_XT_TARGET_DSCP NETFILTER_XT_TARGET_HL NETFILTER_XT_TARGET_HMARK NETFILTER_XT_TARGET_IDLETIMER NETFILTER_XT_TARGET_LED NETFILTER_XT_TARGET_MARK NETFILTER_XT_TARGET_NETMAP NETFILTER_XT_TARGET_NFQUEUE NETFILTER_XT_TARGET_NOTRACK NETFILTER_XT_TARGET_RATEEST NETFILTER_XT_TARGET_REDIRECT NETFILTER_XT_TARGET_TCPOPTSTRIP NETFILTER_XT_TARGET_TEE NETFILTER_XT_TARGET_TPROXY NETFILTER_XT_TARGET_TRACE NETLABEL NETLINK_DIAG NETROM NET_9P_RDMA NET_ACT_BPF NET_ACT_CONNMARK NET_ACT_CSUM NET_ACT_CT NET_ACT_CTINFO NET_ACT_GACT NET_ACT_GATE NET_ACT_IFE NET_ACT_MIRRED NET_ACT_MPLS NET_ACT_NAT NET_ACT_PEDIT NET_ACT_POLICE NET_ACT_SAMPLE NET_ACT_SIMP NET_ACT_SKBEDIT NET_ACT_SKBMOD NET_ACT_TUNNEL_KEY NET_ACT_VLAN NET_CLS_BASIC NET_CLS_BPF NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 NET_DEVLINK NET_DEVMEM NET_DROP_MONITOR NET_DSA NET_DSA_TAG_BRCM NET_DSA_TAG_BRCM_COMMON NET_DSA_TAG_BRCM_PREPEND NET_DSA_TAG_MTK NET_DSA_TAG_QCA NET_DSA_TAG_RTL4_A NET_EMATCH_CANID NET_EMATCH_CMP NET_EMATCH_IPSET NET_EMATCH_IPT NET_EMATCH_META NET_EMATCH_NBYTE NET_EMATCH_TEXT NET_EMATCH_U32 NET_FC NET_FOU NET_FOU_IP_TUNNELS NET_IFE NET_IFE_SKBMARK NET_IFE_SKBPRIO NET_IFE_SKBTCINDEX NET_IPGRE NET_IPGRE_BROADCAST NET_IPGRE_DEMUX NET_IPIP NET_IPVTI NET_KEY NET_KEY_MIGRATE NET_L3_MASTER_DEV NET_MPLS_GSO NET_NCSI NET_NSH NET_REDIRECT NET_SCH_CAKE NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR NET_SCH_ETF NET_SCH_ETS NET_SCH_FQ NET_SCH_FQ_CODEL NET_SCH_FQ_PIE NET_SCH_GRED NET_SCH_HFSC NET_SCH_HHF NET_SCH_HTB NET_SCH_INGRESS NET_SCH_MQPRIO NET_SCH_MQPRIO_LIB NET_SCH_MULTIQ NET_SCH_NETEM NET_SCH_PIE NET_SCH_PLUG NET_SCH_PRIO NET_SCH_QFQ NET_SCH_RED NET_SCH_SFB NET_SCH_SFQ NET_SCH_SKBPRIO NET_SCH_TAPRIO NET_SCH_TBF NET_SCH_TEQL NET_SHAPER NET_SOCK_MSG NET_SWITCHDEV NET_TC_SKB_EXT NET_TEAM NET_TEAM_MODE_ACTIVEBACKUP NET_TEAM_MODE_BROADCAST NET_TEAM_MODE_LOADBALANCE NET_TEAM_MODE_RANDOM NET_TEAM_MODE_ROUNDROBIN NET_UDP_TUNNEL NET_VENDOR_HISILICON NET_VRF NFC NFC_DIGITAL NFC_FDP NFC_HCI NFC_MRVL NFC_MRVL_USB NFC_NCI NFC_NCI_UART NFC_PN533 NFC_PN533_USB NFC_PORT100 NFC_SHDLC NFC_SIM NFC_VIRTUAL_NCI NFSD NFSD_BLOCKLAYOUT NFSD_FLEXFILELAYOUT NFSD_PNFS NFSD_SCSILAYOUT NFSD_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V4_1 NFS_V4_2 NFS_V4_2_READ_PLUS NFS_V4_2_SSC_HELPER NFS_V4_SECURITY_LABEL NFT_BRIDGE_META NFT_BRIDGE_REJECT NFT_COMPAT NFT_COMPAT_ARP NFT_CONNLIMIT NFT_CT NFT_DUP_IPV4 NFT_DUP_IPV6 NFT_DUP_NETDEV NFT_FIB NFT_FIB_INET NFT_FIB_IPV4 NFT_FIB_IPV6 NFT_FIB_NETDEV NFT_FLOW_OFFLOAD NFT_FWD_NETDEV NFT_HASH NFT_LIMIT NFT_LOG NFT_MASQ NFT_NAT NFT_NUMGEN NFT_OSF NFT_QUEUE NFT_QUOTA NFT_REDIR NFT_REJECT NFT_REJECT_INET NFT_REJECT_IPV4 NFT_REJECT_IPV6 NFT_REJECT_NETDEV NFT_SOCKET NFT_SYNPROXY NFT_TPROXY NFT_TUNNEL NFT_XFRM NF_CONNTRACK_AMANDA NF_CONNTRACK_BRIDGE NF_CONNTRACK_BROADCAST NF_CONNTRACK_EVENTS NF_CONNTRACK_H323 NF_CONNTRACK_LABELS NF_CONNTRACK_MARK NF_CONNTRACK_NETBIOS_NS NF_CONNTRACK_OVS NF_CONNTRACK_PPTP NF_CONNTRACK_SANE NF_CONNTRACK_SNMP NF_CONNTRACK_TFTP NF_CONNTRACK_TIMEOUT NF_CONNTRACK_TIMESTAMP NF_CONNTRACK_ZONES NF_CT_NETLINK_HELPER NF_CT_NETLINK_TIMEOUT NF_CT_PROTO_DCCP NF_CT_PROTO_GRE NF_CT_PROTO_SCTP NF_CT_PROTO_UDPLITE NF_DUP_IPV4 NF_DUP_IPV6 NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_NAT_AMANDA NF_NAT_H323 NF_NAT_OVS NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NINTENDO_FF NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 PAGE_POOL PARTITION_ADVANCED PSAMPLE RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE RC_DEVICES REGULATOR RFKILL SND SOUND SPI STAGING TRANSPARENT_HUGEPAGE TYPEC TYPEC_MUX_PI3USB30532 USB_GADGET USB_LJCA USB_MUSB_HDRC USB_ROLES_INTEL_XHCI USB_ROLE_SWITCH VIDEO_DEV VIRTIO_FS WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32_ABI ZONE_DEVICE] picked [v6.12 v6.11 v6.10 v6.8 v6.6 v6.4 v6.2 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 35 release tags testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f25e5626be06c771575b6c301df3a1bbfee913719ddc39202ed5eff40cdecae3 all runs: OK false negative chance: 0.000 # git bisect start dccbe2047a5b0859de24bf463dae9eeea8e01c1e adc218676eef25575469234709c2d87185ca223a Bisecting: 6817 revisions left to test after this (roughly 13 steps) [071b34dcf71523a559b6c39f5d21a268a9531b50] Merge tag 'sound-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 071b34dcf71523a559b6c39f5d21a268a9531b50 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d174043a0973a6a8369df5203b7c9feed81b8f4332c759e49f02c175f8d3de4f run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: crashed: WARNING in posixtimer_send_sigqueue run #6: crashed: WARNING in posixtimer_send_sigqueue run #7: crashed: WARNING in posixtimer_send_sigqueue run #8: crashed: WARNING in posixtimer_send_sigqueue run #9: crashed: WARNING in posixtimer_send_sigqueue run #10: crashed: WARNING in posixtimer_send_sigqueue run #11: crashed: WARNING in posixtimer_send_sigqueue 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 posixtimer_send_sigqueue, types: [WARNING] # git bisect bad 071b34dcf71523a559b6c39f5d21a268a9531b50 Bisecting: 3384 revisions left to test after this (roughly 12 steps) [79caa6c88ac484111b24488eb9fe1c86a3d18016] Merge tag 'asm-generic-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic testing commit 79caa6c88ac484111b24488eb9fe1c86a3d18016 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d595a6348804029c7a38ab7c486492efac2c8fb2625c270b7d3044e754393998 run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: crashed: WARNING in posixtimer_send_sigqueue run #6: crashed: WARNING in posixtimer_send_sigqueue run #7: crashed: WARNING in posixtimer_send_sigqueue run #8: crashed: WARNING in posixtimer_send_sigqueue run #9: crashed: WARNING in posixtimer_send_sigqueue run #10: crashed: WARNING in posixtimer_send_sigqueue run #11: OK run #12: crashed: WARNING in posixtimer_send_sigqueue 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 posixtimer_send_sigqueue, types: [WARNING] # git bisect bad 79caa6c88ac484111b24488eb9fe1c86a3d18016 Bisecting: 1373 revisions left to test after this (roughly 11 steps) [c1f2ffe207a23b52d58923b1b34c2fd3d1b30494] Merge tag 'ras_core_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit c1f2ffe207a23b52d58923b1b34c2fd3d1b30494 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dfc0b5c96b772f45ff7ef9677f8ab10ad32ef4e61f42ef3db1644bb55d80b881 all runs: OK false negative chance: 0.000 # git bisect good c1f2ffe207a23b52d58923b1b34c2fd3d1b30494 Bisecting: 696 revisions left to test after this (roughly 10 steps) [f2ef39727a229ddd127e3538b58f4f5bdc5eeea6] Merge tag 'spi-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi testing commit f2ef39727a229ddd127e3538b58f4f5bdc5eeea6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8b03f15dc0a47c30c8baa664b762f938bd6ec31811211fa0c0c36131f64858b6 run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: crashed: WARNING in posixtimer_send_sigqueue run #6: crashed: WARNING in posixtimer_send_sigqueue run #7: crashed: WARNING in posixtimer_send_sigqueue run #8: crashed: WARNING in posixtimer_send_sigqueue run #9: OK run #10: OK run #11: OK run #12: crashed: WARNING in posixtimer_send_sigqueue 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 posixtimer_send_sigqueue, types: [WARNING] # git bisect bad f2ef39727a229ddd127e3538b58f4f5bdc5eeea6 Bisecting: 409 revisions left to test after this (roughly 8 steps) [035238752319a58244d86facd442c5f40b0e97e2] Merge tag 'timers-vdso-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 035238752319a58244d86facd442c5f40b0e97e2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 44546ddecbbde8fab04d5b75757b8c03770724b910c5d8de9a2497210f9b6b03 all runs: OK false negative chance: 0.000 # git bisect good 035238752319a58244d86facd442c5f40b0e97e2 Bisecting: 205 revisions left to test after this (roughly 8 steps) [7d66d3ab139c8c195dbb603e21043b6e2d120fa3] Merge tag 'printk-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux testing commit 7d66d3ab139c8c195dbb603e21043b6e2d120fa3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9ab2b12bcf8811b9e573b4dc6f576084da86e014ff8499753c4773d8c3684cf1 run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: crashed: WARNING in posixtimer_send_sigqueue run #6: crashed: WARNING in posixtimer_send_sigqueue run #7: crashed: WARNING in posixtimer_send_sigqueue run #8: crashed: WARNING in posixtimer_send_sigqueue run #9: crashed: WARNING in posixtimer_send_sigqueue run #10: crashed: WARNING in posixtimer_send_sigqueue run #11: crashed: WARNING in posixtimer_send_sigqueue run #12: OK run #13: OK run #14: OK run #15: crashed: WARNING in posixtimer_send_sigqueue run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in posixtimer_send_sigqueue, types: [WARNING] # git bisect bad 7d66d3ab139c8c195dbb603e21043b6e2d120fa3 Bisecting: 101 revisions left to test after this (roughly 7 steps) [0360ed14d9826678a50fa2b873e522a24cd3c018] signal: Refactor send_sigqueue() testing commit 0360ed14d9826678a50fa2b873e522a24cd3c018 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78014492ad6d9dadc696b4697458ae2d571a47471d77decdade7214f4d8525b9 all runs: OK false negative chance: 0.000 # git bisect good 0360ed14d9826678a50fa2b873e522a24cd3c018 Bisecting: 50 revisions left to test after this (roughly 6 steps) [623e5747c680d3854b6b9882d9907096bc63580d] docs: fix typos and whitespace in Documentation/process/backporting.rst testing commit 623e5747c680d3854b6b9882d9907096bc63580d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eff89b7fbe76b7a331c5583cbc6c81499f6603eb5c684c25965817627bba687a all runs: OK false negative chance: 0.000 # git bisect good 623e5747c680d3854b6b9882d9907096bc63580d Bisecting: 25 revisions left to test after this (roughly 5 steps) [211647e5121e0e0da974bf69a8eb7c9fe57fa3bd] wait: Switch to use hrtimer_setup_sleeper_on_stack() testing commit 211647e5121e0e0da974bf69a8eb7c9fe57fa3bd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d292547bfe3af2929ea52d0c1cb66ab4d6519b400e18b2fa83dc3049c93b5275 run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: crashed: WARNING in posixtimer_send_sigqueue run #6: crashed: WARNING in posixtimer_send_sigqueue run #7: crashed: WARNING in posixtimer_send_sigqueue run #8: crashed: WARNING in posixtimer_send_sigqueue run #9: crashed: WARNING in posixtimer_send_sigqueue run #10: crashed: WARNING in posixtimer_send_sigqueue run #11: crashed: WARNING in posixtimer_send_sigqueue run #12: crashed: WARNING in posixtimer_send_sigqueue run #13: crashed: WARNING in posixtimer_send_sigqueue run #14: crashed: WARNING in posixtimer_send_sigqueue run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in posixtimer_send_sigqueue, types: [WARNING] # git bisect bad 211647e5121e0e0da974bf69a8eb7c9fe57fa3bd Bisecting: 12 revisions left to test after this (roughly 4 steps) [fbf920f255315974808ce91d934fe50198294d51] hrtimers: Add missing hrtimer_init() trace points testing commit fbf920f255315974808ce91d934fe50198294d51 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d64a5acaa5dc8bfe7c8b40b8f12f66578719bdaac8ee6a728d9bce50d1efab10 run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: crashed: WARNING in posixtimer_send_sigqueue run #6: crashed: WARNING in posixtimer_send_sigqueue run #7: crashed: WARNING in posixtimer_send_sigqueue run #8: crashed: WARNING in posixtimer_send_sigqueue run #9: crashed: WARNING in posixtimer_send_sigqueue run #10: crashed: WARNING in posixtimer_send_sigqueue run #11: crashed: WARNING in posixtimer_send_sigqueue run #12: crashed: WARNING in posixtimer_send_sigqueue run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: crashed: WARNING in posixtimer_send_sigqueue run #19: OK representative crash: WARNING in posixtimer_send_sigqueue, types: [WARNING] # git bisect bad fbf920f255315974808ce91d934fe50198294d51 Bisecting: 5 revisions left to test after this (roughly 3 steps) [0e20cd33acc7a173b23900550331ee82a23e9f00] posix-timers: Handle ignored list on delete and exit testing commit 0e20cd33acc7a173b23900550331ee82a23e9f00 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e2595fcf4917b37743a517e38cceb16779de82ebf040cad222c949c6201e529e all runs: OK false negative chance: 0.000 # git bisect good 0e20cd33acc7a173b23900550331ee82a23e9f00 Bisecting: 2 revisions left to test after this (roughly 2 steps) [7a66f72b09bb0762360274b1fb677b3433dbaa06] posix-timers: Cleanup SIG_IGN workaround leftovers testing commit 7a66f72b09bb0762360274b1fb677b3433dbaa06 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2b4177c6cc47c9d4b9538763545a5861661dbe45e78ddd5118e7dcca0f5885d4 run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: crashed: WARNING in posixtimer_send_sigqueue run #6: crashed: WARNING in posixtimer_send_sigqueue run #7: crashed: WARNING in posixtimer_send_sigqueue run #8: crashed: WARNING in posixtimer_send_sigqueue run #9: crashed: WARNING in posixtimer_send_sigqueue run #10: crashed: WARNING in posixtimer_send_sigqueue run #11: crashed: WARNING in posixtimer_send_sigqueue run #12: crashed: WARNING in posixtimer_send_sigqueue run #13: crashed: WARNING in posixtimer_send_sigqueue run #14: crashed: WARNING in posixtimer_send_sigqueue run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in posixtimer_send_sigqueue, types: [WARNING] # git bisect bad 7a66f72b09bb0762360274b1fb677b3433dbaa06 Bisecting: 0 revisions left to test after this (roughly 1 step) [df7a996b4dab03c889fa86d849447b716f07b069] signal: Queue ignored posixtimers on ignore list testing commit df7a996b4dab03c889fa86d849447b716f07b069 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ee0873f5f81cc0cb3c9ed631de2ee0e098fe2de32c6d08f2806b03f7317bef20 run #0: crashed: WARNING in posixtimer_send_sigqueue run #1: crashed: WARNING in posixtimer_send_sigqueue run #2: crashed: WARNING in posixtimer_send_sigqueue run #3: crashed: WARNING in posixtimer_send_sigqueue run #4: crashed: WARNING in posixtimer_send_sigqueue run #5: crashed: WARNING in posixtimer_send_sigqueue run #6: crashed: WARNING in posixtimer_send_sigqueue run #7: crashed: WARNING in posixtimer_send_sigqueue run #8: crashed: WARNING in posixtimer_send_sigqueue run #9: crashed: WARNING in posixtimer_send_sigqueue run #10: crashed: WARNING in posixtimer_send_sigqueue run #11: OK run #12: crashed: WARNING in posixtimer_send_sigqueue run #13: OK run #14: OK run #15: crashed: WARNING in posixtimer_send_sigqueue run #16: OK run #17: crashed: WARNING in posixtimer_send_sigqueue run #18: OK run #19: crashed: WARNING in posixtimer_send_sigqueue representative crash: WARNING in posixtimer_send_sigqueue, types: [WARNING] # git bisect bad df7a996b4dab03c889fa86d849447b716f07b069 Bisecting: 0 revisions left to test after this (roughly 0 steps) [caf77435dd8a52cb39c602bdf67d35d6f782f553] signal: Handle ignored signals in do_sigaction(action != SIG_IGN) testing commit caf77435dd8a52cb39c602bdf67d35d6f782f553 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 630875a40d68a35dde2a1e0d4eae36f7acf3c9298a7de44e2b15e65d7e3142ba all runs: OK false negative chance: 0.000 # git bisect good caf77435dd8a52cb39c602bdf67d35d6f782f553 df7a996b4dab03c889fa86d849447b716f07b069 is the first bad commit commit df7a996b4dab03c889fa86d849447b716f07b069 Author: Thomas Gleixner Date: Tue Nov 5 09:14:54 2024 +0100 signal: Queue ignored posixtimers on ignore list Queue posixtimers which have their signal ignored on the ignored list: 1) When the timer fires and the signal has SIG_IGN set 2) When SIG_IGN is installed via sigaction() and a timer signal is already queued This only happens when the signal is for a valid timer, which delivered the signal in periodic mode. One-shot timer signals are correctly dropped. Due to the lock order constraints (sighand::siglock nests inside timer::lock) the signal code cannot access any of the timer fields which are relevant to make this decision, e.g. timer::it_status. This is addressed by establishing a protection scheme which requires to lock both locks on the timer side for modifying decision fields in the timer struct and therefore makes it possible for the signal delivery to evaluate with only sighand:siglock being held: 1) Move the NULLification of timer->it_signal into the sighand::siglock protected section of timer_delete() and check timer::it_signal in the code path which determines whether the signal is dropped or queued on the ignore list. This ensures that a deleted timer cannot be moved onto the ignore list, which would prevent it from being freed on exit() as it is not longer in the process' posix timer list. If the timer got moved to the ignored list before deletion then it is removed from the ignored list under sighand lock in timer_delete(). 2) Provide a new timer::it_sig_periodic flag, which gets set in the signal queue path with both timer and sighand locks held if the timer is actually in periodic mode at expiry time. The ignore list code checks this flag under sighand::siglock and drops the signal when it is not set. If it is set, then the signal is moved to the ignored list independent of the actual state of the timer. When the signal is un-ignored later then the signal is moved back to the signal queue. On signal delivery the posix timer side decides about dropping the signal if the timer was re-armed, dis-armed or deleted based on the signal sequence counter check. If the thread/process exits then not yet delivered signals are discarded which means the reference of the timer containing the sigqueue is dropped and frees the timer. This is way cheaper than requiring all code paths to lock sighand::siglock of the target thread/process on any modification of timer::it_status or going all the way and removing pending signals from the signal queues on every rearm, disarm or delete operation. So the protection scheme here is that on the timer side both timer::lock and sighand::siglock have to be held for modifying timer::it_signal timer::it_sig_periodic which means that on the signal side holding sighand::siglock is enough to evaluate these fields. In posixtimer_deliver_signal() holding timer::lock is sufficient to do the sequence validation against timer::it_signal_seq because a concurrent expiry is waiting on timer::lock to be released. This completes the SIG_IGN handling and such timers are not longer self rearmed which avoids pointless wakeups. Signed-off-by: Thomas Gleixner Reviewed-by: Frederic Weisbecker Acked-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/all/20241105064214.120756416@linutronix.de include/linux/posix-timers.h | 2 ++ kernel/signal.c | 80 +++++++++++++++++++++++++++++++++++++++++--- kernel/time/posix-timers.c | 7 +++- 3 files changed, 83 insertions(+), 6 deletions(-) accumulated error probability: 0.00 culprit signature: ee0873f5f81cc0cb3c9ed631de2ee0e098fe2de32c6d08f2806b03f7317bef20 parent signature: 630875a40d68a35dde2a1e0d4eae36f7acf3c9298a7de44e2b15e65d7e3142ba reproducer is flaky (0.40 repro chance estimate) revisions tested: 21, total time: 8h37m29.786531231s (build: 4h57m46.623787566s, test: 3h21m25.54004888s) first bad commit: df7a996b4dab03c889fa86d849447b716f07b069 signal: Queue ignored posixtimers on ignore list recipients (to): ["frederic@kernel.org" "peterz@infradead.org" "tglx@linutronix.de"] recipients (cc): [] crash: WARNING in posixtimer_send_sigqueue ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5165 at kernel/signal.c:2042 posixtimer_send_sigqueue+0x930/0xbd0 kernel/signal.c:2042 Modules linked in: CPU: 0 UID: 0 PID: 5165 Comm: syz.2.384 Not tainted 6.12.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:posixtimer_send_sigqueue+0x930/0xbd0 kernel/signal.c:2042 Code: 02 00 00 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 ec f5 36 00 41 be ff ff ff ff e9 21 ff ff ff 90 <0f> 0b 90 42 80 3c 2b 00 74 08 4c 89 e7 e8 4e 55 7f 00 4d 8b 2c 24 RSP: 0018:ffffc90000007c00 EFLAGS: 00010082 RAX: 0000000000000001 RBX: 1ffff1102ed8bbc3 RCX: ffff88817537d700 RDX: 0000000000010000 RSI: 0000000000002000 RDI: 0000000000000000 RBP: ffffc90000007d00 R08: ffffffff8140d3b0 R09: 1ffffffff1ab6e26 R10: dffffc0000000000 R11: fffffbfff1ab6e27 R12: ffff888176c5de18 R13: dffffc0000000000 R14: ffff888176c5de00 R15: ffff888176c5dec0 FS: 00007f023ebd36c0(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 000000011545c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: posix_timer_queue_signal kernel/time/posix-timers.c:315 [inline] posix_timer_fn+0x100/0x310 kernel/time/posix-timers.c:335 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1755 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1026 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1043 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] sysvec_apic_timer_interrupt+0x8d/0xb0 arch/x86/kernel/apic/apic.c:1037 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 0e 2d 11 fa f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 53 d0 9a f9 65 8b 05 14 c6 54 78 85 c0 74 43 48 c7 04 24 0e 36 RSP: 0018:ffffc90001cf7c60 EFLAGS: 00000206 RAX: bff03dc115e0e500 RBX: 1ffff9200039ef90 RCX: ffffffff936be203 RDX: dffffc0000000000 RSI: ffffffff87e8ec00 RDI: 0000000000000001 RBP: ffffc90001cf7cf0 R08: ffffffff8a5a3f6f R09: 1ffffffff14b47ed R10: dffffc0000000000 R11: fffffbfff14b47ee R12: dffffc0000000000 R13: 1ffff9200039ef8c R14: ffffc90001cf7c80 R15: 0000000000000246 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] unlock_timer kernel/time/posix-timers.c:128 [inline] do_timer_settime+0x37f/0x3e0 kernel/time/posix-timers.c:969 __do_sys_timer_settime kernel/time/posix-timers.c:989 [inline] __se_sys_timer_settime kernel/time/posix-timers.c:975 [inline] __x64_sys_timer_settime+0x19e/0x240 kernel/time/posix-timers.c:975 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f023dd85d19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f023ebd3038 EFLAGS: 00000246 ORIG_RAX: 00000000000000df RAX: ffffffffffffffda RBX: 00007f023df75fa0 RCX: 00007f023dd85d19 RDX: 0000000020040fe0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f023de01a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f023df75fa0 R15: 00007f023e09fa28 ---------------- Code disassembly (best guess): 0: 9c pushf 1: 8f 44 24 20 pop 0x20(%rsp) 5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) a: 74 08 je 0x14 c: 4c 89 f7 mov %r14,%rdi f: e8 0e 2d 11 fa call 0xfa112d22 14: f6 44 24 21 02 testb $0x2,0x21(%rsp) 19: 75 52 jne 0x6d 1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d 22: 74 01 je 0x25 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 53 d0 9a f9 call 0xf99ad082 <-- trapping instruction 2f: 65 8b 05 14 c6 54 78 mov %gs:0x7854c614(%rip),%eax # 0x7854c64a 36: 85 c0 test %eax,%eax 38: 74 43 je 0x7d 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: 04 24 add $0x24,%al 3e: 0e (bad) 3f: 36 ss