ci2 starts bisection 2026-07-31 03:23:10.045058007 +0000 UTC m=+34981.887527700 bisecting cause commit starting from 11028ab62899e4191e074ee364c712b77823a9c4 building syzkaller on 2377cd3dcd3c2e96dc5bd3c92c152122cdd05d7a ensuring issue is reproducible on original commit 11028ab62899e4191e074ee364c712b77823a9c4 testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: d8d0209029405ae206bc869fe860f6e9892bb0305dc5df73d290d97fe60cc1a6 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, 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 11028ab62899e4191e074ee364c712b77823a9c4 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 3da3f2734745c3a7bcc073cee77f36e6f24279fa343b1c188e9386775fe5ba12 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed kconfig minimization: base=4140 full=8397 leaves diff=2111 split chunks (needed=false): <2111> split chunk #0 of len 2111 into 5 parts testing without sub-chunk 1/5 disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 50ab108e089f963fd15497126d9838d3f64db655408a4062732c25797aa30712 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 758d06007211bafd182759bf2b8f6e794cb7deb7bcb9c603f254b0da713b8349 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 714521587c8bbc0ef3a5d3776af1c0101d4037d7b9493663b47de4e396bbd924 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 2be037b6351eb319cf559738ec35462bbccc663e5341d40898f03339061771e7 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed testing commit 11028ab62899e4191e074ee364c712b77823a9c4 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 04dc5391a889fcbaae2cd994d2ba2da6504c5fee2a0798d0faa4cd8f72dde24c all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] the chunk can be dropped minimized to 423 configs; suspects: [AF_RXRPC ATM BT BT_BREDR BT_HIDP BXT_WC_PMIC_OPREGION CFG80211 DIBS DLM DMABUF_HEAPS DRM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB GUEST_PERF_EVENTS HAVE_CLK HID_NINTENDO HID_NVIDIA_SHIELD HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_STEAM HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IP_SCTP L2TP LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_MT6370 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NILFS2_FS NINTENDO_FF NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NULL_TTY NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVIDIA_SHIELD_FF NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN OPTEE_STATIC_PROTMEM_POOL ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PAGE_IDLE_FLAG PAGE_REPORTING PAHOLE_HAS_BTF_TAG PAHOLE_HAS_LANG_EXCLUDE PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERF_GUEST_MEDIATED_PMU PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_GOOGLE_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PLAYSTATION_FF PLFXLC PMIC_OPREGION PM_CLK POSIX_AUX_CLOCKS PPP PPPOATM PPPOE PPPOE_HASH_BITS_1 PPPOL2TP PPPOX PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PREEMPT_RT PROC_CHILDREN PSAMPLE PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID6_PQ_ARCH RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGMAP_SPI REGULATOR REGULATOR_FIXED_VOLTAGE REGULATOR_TWL4030 RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 RMI4_F3A ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD RSEQ_SLICE_EXTENSION RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CACHE SCHED_CORE SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_DEFAULT_COOKIE_HMAC_SHA256 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SECURITY_SMACK_NETFILTER SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_GIGABYTE_WATERFORCE SENSORS_NZXT_KRAKEN2 SENSORS_NZXT_SMART2 SENSORS_POWERZ SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SKB_DECRYPTED SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBDIRECT SMBFS SMB_SERVER SMC SMC_DIAG SMSC_PHY SMS_SDIO_DRV SMS_SIANO_DEBUGFS SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_FAST_LOOKUP SND_CTL_LED SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SOC SND_SOC_I2C_AND_SPI SND_SOC_SDCA_OPTIONAL SND_TIMER SND_UMP SND_UMP_LEGACY_RAWMIDI SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_MIDI_V2 SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUNDWIRE SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_LJCA SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_MULTI SQUASHFS_DECOMP_MULTI SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STEAM_FF STP STREAM_PARSER SUN_PARTITION SURFACE_AGGREGATOR SURFACE_AGGREGATOR_BUS SURFACE_AGGREGATOR_REGISTRY SURFACE_HID SURFACE_HID_CORE SURFACE_KBD SW_SYNC SYSFB SYSFS_SYSCALL SYSV68_PARTITION TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEE TEE_DMABUF_HEAPS TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TMPFS_QUOTA TOOLS_SUPPORT_RELR TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_ANX7411 TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_FSA4480 TYPEC_MUX_GPIO_SBU TYPEC_MUX_INTEL_PMC TYPEC_MUX_NB7VPQ904M TYPEC_MUX_PTN36502 TYPEC_MUX_WCD939X_USBSS TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_RT1719 TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPCI_MT6370 TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE TYPEC_WUSB3801 UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UCSI_CCG UCSI_STM32G0 UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_CONFIGFS USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CDNS2_UDC USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNS_SUPPORT USB_DWC2 USB_GADGET USB_LJCA USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VXLAN WIRELESS WLAN WLAN_VENDOR_PURELIFI ZONE_DEVICE] disabling configs for [locking atomic_sleep hang memleak ubsan kasan], they are not needed picked [v7.1 v7.0 v6.19 v6.17 v6.15 v6.13 v6.11 v6.9 v6.6 v6.3 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 44 release tags 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: 2b41c33fca1e87c388eb26b17ca1bfb7992dccf74198066421f36ccb3c3b20db all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, 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: 36654b97efabfe8f05a7a32e8463aa83ded1309b9667c7ba288c69196e67b062 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] testing release v6.19 testing commit 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: a8c9ffb6950b2b193c4ab075cbfda8550d7cefcebfaba00cfdaf4d3e3e8d9581 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] testing release v6.17 testing commit e5f0a698b34ed76002dc5cff3804a61c80233a7a gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: c99ef7869fd596997da157edde384bcca7fbee7cd904692db22f78fdf365df83 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] testing release v6.15 testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: c12844594b6f068f486b4e4131520cfac76d670355a8c0884de9a183f233ac79 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] testing release v6.13 testing commit ffd294d346d185b70e28b1a28abe367bbfe53c04 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 3b3bb106963a89e5db2fbafbebe155e83f8517d623f092a032adb5cde5a96327 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 991a607d80a774c22e62eb3dac40cf2b22ad197ca53fb2d5e46336d37eb16f33 all runs: OK false negative chance: 0.000 # git bisect start ffd294d346d185b70e28b1a28abe367bbfe53c04 98f7e32f20d28ec452afb208f9cffc08448a2652 Bisecting: 14399 revisions left to test after this (roughly 14 steps) [a3c1185e931929255003c094a9bd4b7516238d71] Merge branch 'bna-remove-error-checking-for-debugfs-create-apis' testing commit a3c1185e931929255003c094a9bd4b7516238d71 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 0903c459921b0e4e9a72f9e331dc288e02cd0f7f5b8c0d369228b2df8f81655e all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] # git bisect bad a3c1185e931929255003c094a9bd4b7516238d71 Bisecting: 7220 revisions left to test after this (roughly 13 steps) [726e2d0cf2bbc14e3bf38491cddda1a56fe18663] Merge tag 'dma-mapping-6.12-2024-09-19' of git://git.infradead.org/users/hch/dma-mapping testing commit 726e2d0cf2bbc14e3bf38491cddda1a56fe18663 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 7ea81c97107a488d15f1dc312f2eddb7b51cbc633f00fab3dc65a1f79da23f66 all runs: OK false negative chance: 0.000 # git bisect good 726e2d0cf2bbc14e3bf38491cddda1a56fe18663 Bisecting: 3642 revisions left to test after this (roughly 12 steps) [220d83b52c7d16ec3c168b82f4e6ce59c645f7ab] smb: client: make SHA-512 TFM ephemeral testing commit 220d83b52c7d16ec3c168b82f4e6ce59c645f7ab gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 1849f88ba7e3c3cb86fb5ecdf7131460c47aee1230ca9e2a8f13aa6c2f7a66dd all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] # git bisect bad 220d83b52c7d16ec3c168b82f4e6ce59c645f7ab Bisecting: 1791 revisions left to test after this (roughly 11 steps) [b3f391fddf3cfaadda59ec8da8fd17f4520bbf42] Merge tag 'bcachefs-2024-09-21' of git://evilpiepirate.org/bcachefs testing commit b3f391fddf3cfaadda59ec8da8fd17f4520bbf42 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 444cc8e26975bc83e559b9671e96463cb4fdcfe10b8fe4edd06d3c3e6b3af27e all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] # git bisect bad b3f391fddf3cfaadda59ec8da8fd17f4520bbf42 Bisecting: 871 revisions left to test after this (roughly 10 steps) [1ec6d097897a35dfb55c4c31fc8633cf5be46497] Merge tag 's390-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux testing commit 1ec6d097897a35dfb55c4c31fc8633cf5be46497 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 38eda880075145abf796e38b14a23bfeec0616e9390071f8a644bcd0f51db766 all runs: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] # git bisect bad 1ec6d097897a35dfb55c4c31fc8633cf5be46497 Bisecting: 497 revisions left to test after this (roughly 9 steps) [684826f8271ad97580b138b9ffd462005e470b99] zram: free secondary algorithms names testing commit 684826f8271ad97580b138b9ffd462005e470b99 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: d0d6ec04a13a956f1ebfd0d71ab2b16d8679fc8db317066756947aed738c917f run #0: crashed: WARNING in do_clear_cpu_cap 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: crashed: WARNING in do_clear_cpu_cap representative crash: WARNING in do_clear_cpu_cap, types: [WARNING] # git bisect bad 684826f8271ad97580b138b9ffd462005e470b99 Bisecting: 207 revisions left to test after this (roughly 8 steps) [ef5f379de302884b9b7ad9b62587a942a9f0bb55] mm: always inline _compound_head() with CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y testing commit ef5f379de302884b9b7ad9b62587a942a9f0bb55 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: d873d980d243af7c576b1158786fcf64cbd39cd36d7a4d89e96fba9a53419af4 all runs: OK false negative chance: 0.000 # git bisect good ef5f379de302884b9b7ad9b62587a942a9f0bb55 Bisecting: 103 revisions left to test after this (roughly 7 steps) [81528310698726e8f79b9c3de01ebe02567119dd] maple_tree: arange64 node is not a leaf node testing commit 81528310698726e8f79b9c3de01ebe02567119dd gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: b21980900df2f51882b858587fd10ce20313a269578ba5bfc3a53066710e09b8 all runs: OK false negative chance: 0.000 # git bisect good 81528310698726e8f79b9c3de01ebe02567119dd Bisecting: 51 revisions left to test after this (roughly 6 steps) [25e8acbcf19c56fbf0d80615c8f409586aabbf86] mm/damon/tests/core-kunit: skip damon_test_nr_accesses_to_accesses_bp() if aggr_interval is zero testing commit 25e8acbcf19c56fbf0d80615c8f409586aabbf86 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 1880083d4ce1022b4a93958c1a9b913de0460b27de2d0c5cdae30c3774af0a03 all runs: OK false negative chance: 0.000 # git bisect good 25e8acbcf19c56fbf0d80615c8f409586aabbf86 Bisecting: 25 revisions left to test after this (roughly 5 steps) [5731aacd54a883dd2c1a5e8c85e1fe78fc728dc7] KVM: use follow_pfnmap API testing commit 5731aacd54a883dd2c1a5e8c85e1fe78fc728dc7 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 314be78973a806077e8fe8015d09c7efdee496b0a28251da3e9639073d4ebf78 all runs: OK false negative chance: 0.000 # git bisect good 5731aacd54a883dd2c1a5e8c85e1fe78fc728dc7 Bisecting: 12 revisions left to test after this (roughly 4 steps) [aa549f923f5e037a459dcd588932db9abfa8c158] mm: support poison recovery from do_cow_fault() testing commit aa549f923f5e037a459dcd588932db9abfa8c158 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: d7355f273f24f57dae72350323391e9c02f1f43e8c4c6a255a2e197bf203a4a8 all runs: OK false negative chance: 0.000 # git bisect good aa549f923f5e037a459dcd588932db9abfa8c158 Bisecting: 6 revisions left to test after this (roughly 3 steps) [a0c9fd22e312caa5566d4f3924e37d8158b997cc] mm/debug_vm_pgtable: Use pxdp_get() for accessing page table entries testing commit a0c9fd22e312caa5566d4f3924e37d8158b997cc gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 0a70d68fa2b91635d5e446c7db585b40cfd52a05c84d6683b7a4565115ece27d all runs: OK false negative chance: 0.000 # git bisect good a0c9fd22e312caa5566d4f3924e37d8158b997cc Bisecting: 3 revisions left to test after this (roughly 2 steps) [242d12c98174584a18965cfab95778893872d650] mm: support large folios swap-in for sync io devices testing commit 242d12c98174584a18965cfab95778893872d650 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 5714c302a84ec0f3b24cd484f122fc8cbf7fc0f61c06bc1bba0451f4bbcb2df4 all runs: OK false negative chance: 0.000 # git bisect good 242d12c98174584a18965cfab95778893872d650 Bisecting: 1 revision left to test after this (roughly 1 step) [6d27a31ef195951c9b03098edfdf986549a213b7] uprobes: introduce the global struct vm_special_mapping xol_mapping testing commit 6d27a31ef195951c9b03098edfdf986549a213b7 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 761a9c8bc88b87d4b70c044e5df1ed17879fd3686f2432b6a899ae45333dc840 all runs: OK false negative chance: 0.000 # git bisect good 6d27a31ef195951c9b03098edfdf986549a213b7 Bisecting: 0 revisions left to test after this (roughly 0 steps) [2abbcc099ec60844ca7c15214ab12955d3c11e68] uprobes: turn xol_area->pages[2] into xol_area->page testing commit 2abbcc099ec60844ca7c15214ab12955d3c11e68 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 05b8a89c8ff280c557a80267a6f3055c7e0b01aa2c93bd647aa88f1a51757ac8 all runs: OK false negative chance: 0.000 # git bisect good 2abbcc099ec60844ca7c15214ab12955d3c11e68 684826f8271ad97580b138b9ffd462005e470b99 is the first bad commit commit 684826f8271ad97580b138b9ffd462005e470b99 Author: Sergey Senozhatsky Date: Wed Sep 11 11:54:56 2024 +0900 zram: free secondary algorithms names We need to kfree() secondary algorithms names when reset zram device that had multi-streams, otherwise we leak memory. [senozhatsky@chromium.org: kfree(NULL) is legal] Link: https://lkml.kernel.org/r/20240917013021.868769-1-senozhatsky@chromium.org Link: https://lkml.kernel.org/r/20240911025600.3681789-1-senozhatsky@chromium.org Fixes: 001d92735701 ("zram: add recompression algorithm sysfs knob") Signed-off-by: Sergey Senozhatsky Cc: Minchan Kim Cc: Signed-off-by: Andrew Morton drivers/block/zram/zram_drv.c | 5 +++++ 1 file changed, 5 insertions(+) accumulated error probability: 0.00 culprit signature: d0d6ec04a13a956f1ebfd0d71ab2b16d8679fc8db317066756947aed738c917f parent signature: 05b8a89c8ff280c557a80267a6f3055c7e0b01aa2c93bd647aa88f1a51757ac8 reproducer is flaky (0.60 repro chance estimate) revisions tested: 29, total time: 9h16m30.421145657s (build: 3h44m22.152818502s, test: 4h35m4.055984906s) first bad commit: 684826f8271ad97580b138b9ffd462005e470b99 zram: free secondary algorithms names recipients (to): ["akpm@linux-foundation.org" "senozhatsky@chromium.org"] recipients (cc): [] crash: WARNING in do_clear_cpu_cap Disabled fast string operations ------------[ cut here ]------------ WARNING: CPU: 1 PID: 0 at arch/x86/kernel/cpu/cpuid-deps.c:118 do_clear_cpu_cap+0x6f/0x3e0 arch/x86/kernel/cpu/cpuid-deps.c:118 Modules linked in: CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G S syzkaller #0 Tainted: [S]=CPU_OUT_OF_SPEC Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:do_clear_cpu_cap+0x6f/0x3e0 arch/x86/kernel/cpu/cpuid-deps.c:118 Code: 0f b3 47 30 e9 45 01 00 00 90 0f 0b 65 48 8b 04 25 28 00 00 00 48 3b 84 24 c0 00 00 00 0f 85 69 03 00 00 90 e9 4e 03 00 00 90 <0f> 0b 90 48 85 ff 75 cc 48 0f a3 05 01 f0 bf 02 73 0d 83 3d 28 f1 RSP: 0000:ffffc900000f3db0 EFLAGS: 00010002 RAX: 0000000000000070 RBX: 0000000001020800 RCX: 88d5656f840b9600 RDX: ffff88813bb29380 RSI: 0000000000000070 RDI: 0000000000000000 RBP: ffffc900000f3e88 R08: 0000000000000124 R09: ffffffff83897580 R10: 000000000000036c R11: 000000010000c124 R12: 0000000000000000 R13: ffffffff82c09f70 R14: ffff88813bb15020 R15: ffff88813bb150c0 FS: 0000000000000000(0000) GS:ffff88813bb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000003846000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: early_init_intel+0x208/0x410 arch/x86/kernel/cpu/intel.c:334 init_intel+0x11/0x310 arch/x86/kernel/cpu/intel.c:555 identify_cpu+0x3c9/0xb90 arch/x86/kernel/cpu/common.c:1833 identify_secondary_cpu+0x12/0x40 arch/x86/kernel/cpu/common.c:1954 smp_store_cpu_info arch/x86/kernel/smpboot.c:332 [inline] ap_starting+0x7a/0xe0 arch/x86/kernel/smpboot.c:191 start_secondary+0x40/0xa0 arch/x86/kernel/smpboot.c:281 common_startup_64+0x13e/0x147