ci2 starts bisection 2026-01-18 05:44:52.212138872 +0000 UTC m=+117679.393422213
bisecting fixing commit since e69c7c175115c51c7f95394fc55425a395b3af59
building syzkaller on d6526ea3e6ad9081c902859bbb80f9f840377cb4
ensuring issue is reproducible on original commit e69c7c175115c51c7f95394fc55425a395b3af59
testing commit e69c7c175115c51c7f95394fc55425a395b3af59 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 9eca3172a512c7484931502a3ed516edf4d97a12183cdbe5c019b36dbe1b56cb
all runs: crashed: INFO: task hung in ntfs_fallocate
representative crash: INFO: task hung in ntfs_fallocate, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed
testing commit e69c7c175115c51c7f95394fc55425a395b3af59 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 6d1c23d6cef8be047871fd144849199f7c2c7e20abfbefe130934de5356196d3
run #0: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #1: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #2: crashed: INFO: task hung in ntfs_fallocate
run #3: crashed: INFO: task hung in ntfs_fallocate
run #4: crashed: INFO: task hung in ntfs_fallocate
run #5: crashed: INFO: task hung in ntfs_fallocate
run #6: crashed: INFO: task hung in ntfs_fallocate
run #7: crashed: INFO: task hung in ntfs_fallocate
run #8: crashed: INFO: task hung in ntfs_fallocate
run #9: crashed: INFO: task hung in ntfs_fallocate
representative crash: INFO: task hung in ntfs_fallocate, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed
kconfig minimization: base=4118 full=8337 leaves diff=2117
split chunks (needed=false): <2117>
split chunk #0 of len 2117 into 5 parts
testing without sub-chunk 1/5
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed
testing commit e69c7c175115c51c7f95394fc55425a395b3af59 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 25e73a1baf6fde6614e24e84b9ef40461eee77b80791ee68d3153063dd2edc7d
run #0: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #1: crashed: INFO: task hung in ntfs_fallocate
run #2: crashed: INFO: task hung in ntfs_fallocate
run #3: crashed: INFO: task hung in ntfs_fallocate
run #4: crashed: INFO: task hung in ntfs_fallocate
run #5: crashed: INFO: task hung in ntfs_fallocate
run #6: crashed: INFO: task hung in ntfs_fallocate
run #7: crashed: INFO: task hung in ntfs_fallocate
run #8: crashed: INFO: task hung in ntfs_fallocate
run #9: crashed: INFO: task hung in ntfs_fallocate
representative crash: INFO: task hung in ntfs_fallocate, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit e69c7c175115c51c7f95394fc55425a395b3af59 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: b1bd6b656d8046dc28c3331da26564b7a527d64662713f21f25b889a17deb853
run #0: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #1: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #2: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #3: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #4: crashed: INFO: task hung in ntfs_fallocate
run #5: crashed: INFO: task hung in ntfs_fallocate
run #6: crashed: INFO: task hung in ntfs_fallocate
run #7: crashed: INFO: task hung in ntfs_fallocate
run #8: crashed: INFO: task hung in ntfs_fallocate
run #9: crashed: INFO: task hung in ntfs_fallocate
representative crash: INFO: task hung in ntfs_fallocate, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit e69c7c175115c51c7f95394fc55425a395b3af59 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: f0e5f790724a6df434f9b979347869b74669df2901cd161a633828e9b2751484
run #0: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #1: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #2: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #3: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #4: crashed: INFO: task hung in ntfs_fallocate
run #5: crashed: INFO: task hung in ntfs_fallocate
run #6: crashed: INFO: task hung in ntfs_fallocate
run #7: crashed: INFO: task hung in ntfs_fallocate
run #8: crashed: INFO: task hung in ntfs_fallocate
run #9: crashed: INFO: task hung in ntfs_fallocate
representative crash: INFO: task hung in ntfs_fallocate, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit e69c7c175115c51c7f95394fc55425a395b3af59 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 21af25fbd7d6fe9d52bb5c466fcb4a6880d93ec154ad334d57aa57ae0e93ac69
run #0: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #1: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #2: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #3: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
false negative chance: 0.000
testing without sub-chunk 5/5
disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed
testing commit e69c7c175115c51c7f95394fc55425a395b3af59 gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: 3120a5f1f93fde8a57e1bb637d3a4598e57d9114ceb052d7a003f99c47494505
run #0: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #1: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #2: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #3: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #4: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #5: crashed: INFO: task hung in ntfs_fallocate
run #6: crashed: INFO: task hung in ntfs_fallocate
run #7: crashed: INFO: task hung in ntfs_fallocate
run #8: crashed: INFO: task hung in ntfs_fallocate
run #9: crashed: INFO: task hung in ntfs_fallocate
representative crash: INFO: task hung in ntfs_fallocate, types: [HANG]
the chunk can be dropped
minimized to 424 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BT BT_BREDR BT_HIDP BXT_WC_PMIC_OPREGION CFG80211 CMA DAX DIBS DLM DMABUF_HEAPS DRM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO 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 NFS_V4_1 NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TPROXY_IPV4 NF_TPROXY_IPV6 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 PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHYLINK PHY_CPCAP_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 PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT POSIX_AUX_CLOCKS PPP PPPOATM PPPOE PPPOE_HASH_BITS_1 PPPOL2TP 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 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 ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCREEN_INFO SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_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 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_SUPPORT_OLD_API 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 SUNRPC_BACKCHANNEL 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 TLS TLS_TOE 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_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_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 memleak ubsan bug_or_warning kasan], they are not needed
testing current HEAD e84d960149e71e8d5e4db69775ce31305898ed0c
testing commit e84d960149e71e8d5e4db69775ce31305898ed0c gcc
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
kernel signature: a71beb3a1803f6a443d774430f48c8297bd385d9bebb4f75bc14de78086a6c9e
run #0: basic kernel testing failed: SYZFAIL: failed to recv rpc
run #1: crashed: INFO: task hung in ntfs_fallocate
run #2: crashed: INFO: task hung in ntfs_fallocate
run #3: crashed: INFO: task hung in ntfs_fallocate
run #4: crashed: INFO: task hung in ntfs_fallocate
run #5: crashed: INFO: task hung in ntfs_fallocate
run #6: crashed: INFO: task hung in ntfs_fallocate
run #7: crashed: INFO: task hung in ntfs_fallocate
run #8: crashed: INFO: task hung in ntfs_fallocate
run #9: crashed: INFO: task hung in ntfs_fallocate
representative crash: INFO: task hung in ntfs_fallocate, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 2h19m37.305382569s (build: 1h12m7.591036544s, test: 55m20.5460255s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'for-6.19-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
crash: INFO: task hung in ntfs_fallocate
INFO: task syz.3.17:3745 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.17 state:D stack:14488 pid:3745 tgid:3743 ppid:3337 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x64f/0x17c0 kernel/sched/core.c:6863
__schedule_loop kernel/sched/core.c:6945 [inline]
rt_mutex_schedule+0x1c/0x70 kernel/sched/core.c:7241
rt_mutex_slowlock_block kernel/locking/rtmutex.c:1647 [inline]
__rt_mutex_slowlock kernel/locking/rtmutex.c:1721 [inline]
__rt_mutex_slowlock_locked+0xbb2/0xd20 kernel/locking/rtmutex.c:1760
rt_mutex_slowlock+0x4a/0xc0 kernel/locking/rtmutex.c:1800
__rt_mutex_lock kernel/locking/rtmutex.c:1815 [inline]
rwbase_write_lock+0x75/0x340 kernel/locking/rwbase_rt.c:244
inode_lock include/linux/fs.h:1027 [inline]
ntfs_fallocate+0xeb/0x610 fs/ntfs3/file.c:605
vfs_fallocate+0x1b7/0x1e0 fs/open.c:339
ksys_fallocate fs/open.c:363 [inline]
__do_sys_fallocate fs/open.c:368 [inline]
__se_sys_fallocate fs/open.c:366 [inline]
__x64_sys_fallocate+0x43/0x70 fs/open.c:366
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x80/0x2c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdc2df3aef9
RSP: 002b:00007fdc2dd7e028 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fdc2e1a6090 RCX: 00007fdc2df3aef9
RDX: 0000000000000923 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fdc2dfcfee0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000008000c66 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdc2e1a6128 R14: 00007fdc2e1a6090 R15: 00007fff0f5ea118
Showing all locks held in the system:
1 lock held by khungtaskd/39:
#0: ffffffff839954b0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#0: ffffffff839954b0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
#0: ffffffff839954b0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2e/0x100 kernel/locking/lockdep.c:6775
3 locks held by kworker/u8:12/1458:
#0: ffff88810007c938 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work kernel/workqueue.c:3232 [inline]
#0: ffff88810007c938 ((wq_completion)events_unbound){....}-{0:0}, at: process_scheduled_works+0x27e/0x5d0 kernel/workqueue.c:3340
#1: ffffc900041a7e48 ((work_completion)(&sub_info->work)){....}-{0:0}, at: process_one_work kernel/workqueue.c:3233 [inline]
#1: ffffc900041a7e48 ((work_completion)(&sub_info->work)){....}-{0:0}, at: process_scheduled_works+0x29e/0x5d0 kernel/workqueue.c:3340
#2: ffffffff838080a8 (tasklist_lock){....}-{2:2}, at: read_lock include/linux/rwlock_rt.h:37 [inline]
#2: ffffffff838080a8 (tasklist_lock){....}-{2:2}, at: __do_wait+0x50/0x200 kernel/exit.c:1672
3 locks held by kworker/u8:13/1696:
2 locks held by getty/1903:
#0: ffff888145ae98a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x40 drivers/tty/tty_ldisc.c:243
#1: ffffc900001fb2e0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x1c9/0x710 drivers/tty/n_tty.c:2211
3 locks held by syz.3.17/3744:
2 locks held by syz.3.17/3745:
#0: ffff888119cf6468 (sb_writers#12){....}-{0:0}, at: vfs_fallocate+0x198/0x1e0 fs/open.c:338
#1: ffff88810efc4bd8 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: inode_lock include/linux/fs.h:1027 [inline]
#1: ffff88810efc4bd8 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: ntfs_fallocate+0xeb/0x610 fs/ntfs3/file.c:605
3 locks held by syz.4.18/4155:
2 locks held by syz.4.18/4157:
#0: ffff88810469f468 (sb_writers#12){....}-{0:0}, at: vfs_fallocate+0x198/0x1e0 fs/open.c:338
#1: ffff88810efc9950 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: inode_lock include/linux/fs.h:1027 [inline]
#1: ffff88810efc9950 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: ntfs_fallocate+0xeb/0x610 fs/ntfs3/file.c:605
3 locks held by syz.5.19/4568:
2 locks held by syz.5.19/4569:
#0: ffff8881182b5468 (sb_writers#12){....}-{0:0}, at: vfs_fallocate+0x198/0x1e0 fs/open.c:338
#1: ffff88810ec803a8 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: inode_lock include/linux/fs.h:1027 [inline]
#1: ffff88810ec803a8 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: ntfs_fallocate+0xeb/0x610 fs/ntfs3/file.c:605
3 locks held by syz.6.20/4979:
2 locks held by syz.6.20/4981:
#0: ffff888104699468 (sb_writers#12){....}-{0:0}, at: vfs_fallocate+0x198/0x1e0 fs/open.c:338
#1: ffff88810efc6180 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: inode_lock include/linux/fs.h:1027 [inline]
#1: ffff88810efc6180 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: ntfs_fallocate+0xeb/0x610 fs/ntfs3/file.c:605
2 locks held by syz.7.21/5392:
2 locks held by syz.7.21/5393:
#0: ffff8881180f7468 (sb_writers#12){....}-{0:0}, at: vfs_fallocate+0x198/0x1e0 fs/open.c:338
#1: ffff88810efd03a8 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: inode_lock include/linux/fs.h:1027 [inline]
#1: ffff88810efd03a8 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: ntfs_fallocate+0xeb/0x610 fs/ntfs3/file.c:605
2 locks held by syz.8.22/5804:
2 locks held by syz.8.22/5805:
#0: ffff8881127ff468 (sb_writers#12){....}-{0:0}, at: vfs_fallocate+0x198/0x1e0 fs/open.c:338
#1: ffff88810efd7728 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: inode_lock include/linux/fs.h:1027 [inline]
#1: ffff88810efd7728 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: ntfs_fallocate+0xeb/0x610 fs/ntfs3/file.c:605
2 locks held by syz.9.23/6216:
2 locks held by syz.9.23/6217:
#0: ffff88811a9f4468 (sb_writers#12){....}-{0:0}, at: vfs_fallocate+0x198/0x1e0 fs/open.c:338
#1: ffff88810efcd310 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: inode_lock include/linux/fs.h:1027 [inline]
#1: ffff88810efcd310 (&sb->s_type->i_mutex_key#17){....}-{3:3}, at: ntfs_fallocate+0xeb/0x610 fs/ntfs3/file.c:605
6 locks held by modprobe/6234:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
dump_stack_lvl+0x52/0x80 lib/dump_stack.c:120
nmi_cpu_backtrace+0xbb/0x110 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x8e/0x140 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:161 [inline]
__sys_info lib/sys_info.c:157 [inline]
sys_info+0x95/0xb0 lib/sys_info.c:165
check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]
watchdog+0x59a/0x5c0 kernel/hung_task.c:515
kthread+0x202/0x230 kernel/kthread.c:463
ret_from_fork+0xe9/0x210 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 1696 Comm: kworker/u8:13 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: kvfree_rcu_reclaim kfree_rcu_work
RIP: 0010:lookup_object lib/debugobjects.c:421 [inline]
RIP: 0010:debug_object_active_state+0x73/0x110 lib/debugobjects.c:1048
Code: 73 88 4d 01 ee 4c 89 f7 e8 da a3 06 01 4b 8b 8c ed 20 9a 73 88 31 d2 48 85 c9 74 13 4c 8b 69 18 4d 39 fd 74 1d ff c2 48 8b 09 <48> 85 c9 75 ed 3b 15 36 a3 1a 02 7e 06 89 15 2e a3 1a 02 4d 89 fd
RSP: 0018:ffffc900045f7d28 EFLAGS: 00000006
RAX: 0000000000000286 RBX: ffffffff82c13f88 RCX: ffff88810df2d230
RDX: 0000000000000009 RSI: ffffffff8367fb3f RDI: ffffffff887e6eb8
RBP: 0000000000000000 R08: 0000000000080000 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff814bc3f0 R12: 0000000000000001
R13: ffff88810473ca00 R14: ffffffff887e6eb8 R15: ffff88810473c200
FS: 0000000000000000(0000) GS:ffff8881b72f2000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f439e2e4e9c CR3: 00000001180b0000 CR4: 00000000003506f0
Call Trace:
debug_rcu_head_unqueue kernel/rcu/rcu.h:245 [inline]
debug_rcu_bhead_unqueue mm/slab_common.c:1439 [inline]
kvfree_rcu_bulk+0x4b/0x1b0 mm/slab_common.c:1516
kfree_rcu_work+0xed/0x160 mm/slab_common.c:1601
process_one_work kernel/workqueue.c:3257 [inline]
process_scheduled_works+0x2e6/0x5d0 kernel/workqueue.c:3340
worker_thread+0x209/0x2f0 kernel/workqueue.c:3421
kthread+0x202/0x230 kernel/kthread.c:463
ret_from_fork+0xe9/0x210 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246