ci starts bisection 2025-08-10 00:36:04.47681625 +0000 UTC m=+87488.038569330 bisecting fixing commit since d006330be3f782ff3fb7c3ed51e617e01f29a465 building syzkaller on abade7941e7b8a888e052cda1a92805ab785c77e ensuring issue is reproducible on original commit d006330be3f782ff3fb7c3ed51e617e01f29a465 testing commit d006330be3f782ff3fb7c3ed51e617e01f29a465 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: d2bfc7dffa88a4dd8b46802e34ebbdcc172700d5f012c97401f5b98205edead3 run #0: crashed: INFO: task hung in xfs_trans_alloc_inode run #1: crashed: INFO: task hung in xfs_setfilesize run #2: crashed: INFO: task hung in xfs_setfilesize run #3: crashed: INFO: task hung in xfs_file_fsync run #4: crashed: INFO: task hung in xfs_setfilesize run #5: crashed: INFO: task hung in xfs_setfilesize run #6: crashed: INFO: task hung in xfs_setfilesize run #7: crashed: INFO: task hung in xfs_setfilesize run #8: crashed: INFO: task hung in xfs_setfilesize run #9: crashed: INFO: task hung in xfs_setfilesize run #10: crashed: INFO: task hung in xfs_setfilesize run #11: crashed: INFO: task hung in xfs_setfilesize run #12: crashed: INFO: task hung in xfs_setfilesize run #13: crashed: INFO: task hung in xfs_setfilesize run #14: crashed: INFO: task hung in process_measurement run #15: crashed: INFO: task hung in xfs_setfilesize run #16: crashed: INFO: task hung in xfs_setfilesize run #17: crashed: INFO: task hung in xfs_setfilesize run #18: crashed: INFO: task hung in xfs_setfilesize run #19: crashed: INFO: task hung in xfs_setfilesize representative crash: INFO: task hung in xfs_trans_alloc_inode, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed testing commit d006330be3f782ff3fb7c3ed51e617e01f29a465 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 2f5d89c25dac536a75d4f29c9402e77953869842dbeddcac3e47d97e66ffed36 run #0: crashed: INFO: task hung in process_measurement run #1: crashed: INFO: task hung in process_measurement run #2: crashed: INFO: task hung in xfs_setfilesize run #3: crashed: INFO: task hung in xfs_setfilesize run #4: crashed: INFO: task hung in process_measurement run #5: crashed: INFO: task hung in xfs_setfilesize run #6: crashed: INFO: task hung in xfs_setfilesize run #7: crashed: INFO: task hung in xfs_setfilesize run #8: crashed: INFO: task hung in xfs_setfilesize run #9: OK representative crash: INFO: task hung in process_measurement, types: [HANG] the bug reproduces without the instrumentation disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed kconfig minimization: base=4099 full=8481 leaves diff=2183 split chunks (needed=false): <2183> split chunk #0 of len 2183 into 5 parts testing without sub-chunk 1/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit d006330be3f782ff3fb7c3ed51e617e01f29a465 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 4b7633234edca3342848dc5e350beebac57317a9cbc08be10c547412074f50bc run #0: crashed: INFO: task hung in process_measurement run #1: crashed: INFO: task hung in process_measurement run #2: crashed: INFO: task hung in xfs_file_fsync run #3: crashed: INFO: task hung in process_measurement run #4: crashed: INFO: task hung in xfs_setfilesize run #5: crashed: INFO: task hung in xfs_trans_alloc_inode run #6: crashed: INFO: task hung in process_measurement run #7: crashed: INFO: task hung in xfs_setfilesize run #8: OK run #9: OK representative crash: INFO: task hung in process_measurement, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed testing commit d006330be3f782ff3fb7c3ed51e617e01f29a465 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 9fa9823cb239d46272dda4f17016c4e0059b8aeabe3f02b934be433856ebc658 run #0: crashed: INFO: task hung in xfs_setfilesize run #1: crashed: INFO: task hung in xfs_setfilesize run #2: crashed: INFO: task hung in xfs_trans_alloc_inode run #3: crashed: INFO: task hung in xfs_setfilesize run #4: crashed: INFO: task hung in xfs_setfilesize run #5: crashed: INFO: task hung in xfs_setfilesize run #6: crashed: INFO: task hung in xfs_setfilesize run #7: crashed: INFO: task hung in xfs_trans_alloc_inode run #8: OK run #9: OK representative crash: INFO: task hung in xfs_setfilesize, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit d006330be3f782ff3fb7c3ed51e617e01f29a465 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 3cd4bfe063702322ef5a8dafef9a09f9a08ad74ef59ad3687e433a090f2bc050 run #0: crashed: INFO: task hung in xfs_setfilesize run #1: crashed: INFO: task hung in xfs_setfilesize run #2: crashed: INFO: task hung in xfs_setfilesize run #3: crashed: INFO: task hung in xfs_setfilesize run #4: crashed: INFO: task hung in xfs_setfilesize run #5: crashed: INFO: task hung in xfs_setfilesize run #6: crashed: INFO: task hung in xfs_trans_alloc_inode run #7: crashed: INFO: task hung in xfs_setfilesize run #8: crashed: INFO: task hung in xfs_setfilesize run #9: OK representative crash: INFO: task hung in xfs_setfilesize, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit d006330be3f782ff3fb7c3ed51e617e01f29a465 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 63a5b0f66e847e335e177467a81b8d70911e19621cf79db29b0ae35568c55dd3 run #0: crashed: INFO: task hung in xfs_setfilesize run #1: crashed: INFO: task hung in xfs_setfilesize run #2: crashed: INFO: task hung in xfs_setfilesize run #3: crashed: INFO: task hung in xfs_setfilesize run #4: crashed: INFO: task hung in xfs_setfilesize run #5: crashed: INFO: task hung in xfs_setfilesize run #6: crashed: INFO: task hung in xfs_map_blocks run #7: crashed: INFO: task hung in xfs_setfilesize run #8: crashed: INFO: task hung in xfs_setfilesize run #9: crashed: INFO: task hung in xfs_setfilesize representative crash: INFO: task hung in xfs_setfilesize, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed testing commit d006330be3f782ff3fb7c3ed51e617e01f29a465 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 8cafae34441b4bb2257d3993b6fa6b652f4da7053b9e77f98dcbe6c95dcca004 all runs: OK false negative chance: 0.000 minimized to 435 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC DVB_CORE EXTCON GPIOLIB HID_ZEROPLUS I2C_MUX IIO IOMMUFD IRQ_REMAP KVM KVM_INTEL LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_VIPERBOARD NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USBIP_CORE USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AMD5536UDC USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_ATM 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_CDNSP_GADGET USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_NET2280 USB_NET_AQC111 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEO VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC] disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed testing current HEAD 561c80369df0733ba0574882a1635287b20f9de2 testing commit 561c80369df0733ba0574882a1635287b20f9de2 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: d1e37202e1568f615f904ea71c48c3a6e5840b287a3fcd80f77a49e055e56e68 run #0: crashed: INFO: task hung in xfs_setfilesize run #1: crashed: INFO: task hung in xfs_writeback_range run #2: crashed: INFO: task hung in xfs_setfilesize run #3: crashed: INFO: task hung in xfs_setfilesize run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: INFO: task hung in xfs_setfilesize, types: [HANG] crash still not fixed/happens on the oldest tested release reproducer is flaky (1.00 repro chance estimate) revisions tested: 8, total time: 3h35m54.42024189s (build: 1h54m19.702348847s, test: 1h29m58.638631957s) crash still not fixed or there were kernel test errors commit msg: Merge tag 'tty-6.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty crash: INFO: task hung in xfs_setfilesize INFO: task kworker/0:2:983 blocked for more than 143 seconds. Not tainted 6.16.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:13256 pid:983 tgid:983 ppid:2 task_flags:0x4248060 flags:0x00004000 Workqueue: xfs-conv/loop5 xfs_end_io Call Trace: context_switch kernel/sched/core.c:5357 [inline] __schedule+0x74f/0xc50 kernel/sched/core.c:6961 __schedule_loop kernel/sched/core.c:7043 [inline] schedule+0xac/0x140 kernel/sched/core.c:7058 schedule_preempt_disabled+0x32/0x60 kernel/sched/core.c:7115 rwsem_down_write_slowpath+0x2e2/0x6f0 kernel/locking/rwsem.c:1185 __down_write_common kernel/locking/rwsem.c:1317 [inline] __down_write kernel/locking/rwsem.c:1326 [inline] down_write_nested+0x65/0x90 kernel/locking/rwsem.c:1707 xfs_setfilesize+0x5b/0x170 fs/xfs/xfs_aops.c:65 xfs_end_ioend+0x127/0x1c0 fs/xfs/xfs_aops.c:164 xfs_end_io+0xab/0xf0 fs/xfs/xfs_aops.c:205 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0x2e7/0x5e0 kernel/workqueue.c:3319 worker_thread+0x20a/0x2f0 kernel/workqueue.c:3400 kthread+0x203/0x230 kernel/kthread.c:463 ret_from_fork+0x9d/0x170 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 INFO: task syz.5.31:5137 blocked for more than 144 seconds. Not tainted 6.16.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.31 state:D stack:11368 pid:5137 tgid:5136 ppid:3632 task_flags:0x400140 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5357 [inline] __schedule+0x74f/0xc50 kernel/sched/core.c:6961 __schedule_loop kernel/sched/core.c:7043 [inline] schedule+0xac/0x140 kernel/sched/core.c:7058 io_schedule+0x3f/0x60 kernel/sched/core.c:7903 folio_wait_bit_common+0x1d9/0x390 mm/filemap.c:1317 folio_wait_writeback+0x2d/0xb0 mm/page-writeback.c:3124 __filemap_fdatawait_range mm/filemap.c:539 [inline] file_write_and_wait_range+0x1a5/0x1d0 mm/filemap.c:798 xfs_file_fsync+0x8c/0x2b0 fs/xfs/xfs_file.c:140 generic_write_sync include/linux/fs.h:3042 [inline] xfs_file_buffered_write+0x271/0x2b0 fs/xfs/xfs_file.c:1019 do_iter_readv_writev+0x19f/0x1e0 fs/read_write.c:-1 vfs_writev+0x237/0x4d0 fs/read_write.c:1057 do_pwritev fs/read_write.c:1153 [inline] __do_sys_pwritev2 fs/read_write.c:1211 [inline] __se_sys_pwritev2+0x65/0x100 fs/read_write.c:1202 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8f/0x250 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb2e98be929 RSP: 002b:00007fb2e932f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007fb2e9ae5fa0 RCX: 00007fb2e98be929 RDX: 0000000000000001 RSI: 00002000000001c0 RDI: 0000000000000004 RBP: 00007fb2e9940b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000e7b R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb2e9ae5fa0 R15: 00007ffcf189eb78 Showing all locks held in the system: 1 lock held by pool_workqueue_/3: #0: ffffffff836a2ee0 (wq_pool_mutex){....}-{3:3}, at: pwq_release_workfn+0x133/0x240 kernel/workqueue.c:5091 4 locks held by kworker/0:0/9: #0: ffff88811d3da748 ((wq_completion)xfs-conv/loop3#45){....}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline] #0: ffff88811d3da748 ((wq_completion)xfs-conv/loop3#45){....}-{0:0}, at: process_scheduled_works+0x27f/0x5e0 kernel/workqueue.c:3319 #1: ffffc90000053e48 ((work_completion)(&ip->i_ioend_work)){....}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline] #1: ffffc90000053e48 ((work_completion)(&ip->i_ioend_work)){....}-{0:0}, at: process_scheduled_works+0x29f/0x5e0 kernel/workqueue.c:3319 #2: ffff8881312a45f0 (sb_internal#2){....}-{0:0}, at: xfs_trans_alloc+0x47/0x200 fs/xfs/xfs_trans.c:257 #3: ffff88812fc83918 (&xfs_nondir_ilock_class){....}-{3:3}, at: xfs_setfilesize+0x5b/0x170 fs/xfs/xfs_aops.c:65 1 lock held by khungtaskd/31: #0: ffffffff8378e530 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8378e530 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8378e530 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2e/0x100 kernel/locking/lockdep.c:6775 4 locks held by kworker/0:2/983: #0: ffff888126cc1d48 ((wq_completion)xfs-conv/loop5#3){....}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline] #0: ffff888126cc1d48 ((wq_completion)xfs-conv/loop5#3){....}-{0:0}, at: process_scheduled_works+0x27f/0x5e0 kernel/workqueue.c:3319 #1: ffffc90001057e48 ((work_completion)(&ip->i_ioend_work)){....}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline] #1: ffffc90001057e48 ((work_completion)(&ip->i_ioend_work)){....}-{0:0}, at: process_scheduled_works+0x29f/0x5e0 kernel/workqueue.c:3319 #2: ffff88811eb025f0 (sb_internal#2){....}-{0:0}, at: xfs_trans_alloc+0x47/0x200 fs/xfs/xfs_trans.c:257 #3: ffff88811d567818 (&xfs_nondir_ilock_class){....}-{3:3}, at: xfs_setfilesize+0x5b/0x170 fs/xfs/xfs_aops.c:65 2 locks held by getty/2737: #0: ffff8881086e88a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x40 drivers/tty/tty_ldisc.c:243 #1: ffffc90008c832f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x1c3/0x6e0 drivers/tty/n_tty.c:2222 2 locks held by syz-executor/3623: #0: ffff88812c70c0e0 (&type->s_umount_key#47){....}-{3:3}, at: __super_lock fs/super.c:57 [inline] #0: ffff88812c70c0e0 (&type->s_umount_key#47){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff88812c70c0e0 (&type->s_umount_key#47){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506 #1: ffffffff836a2ee0 (wq_pool_mutex){....}-{3:3}, at: destroy_workqueue+0xa3/0x3e0 kernel/workqueue.c:5889 1 lock held by syz.5.31/5137: #0: ffff88811eb02400 (sb_writers#12){....}-{0:0}, at: do_pwritev fs/read_write.c:1153 [inline] #0: ffff88811eb02400 (sb_writers#12){....}-{0:0}, at: __do_sys_pwritev2 fs/read_write.c:1211 [inline] #0: ffff88811eb02400 (sb_writers#12){....}-{0:0}, at: __se_sys_pwritev2+0x65/0x100 fs/read_write.c:1202 4 locks held by syz.5.31/5181: #0: ffff88811eb02400 (sb_writers#12){....}-{0:0}, at: filename_setxattr+0x8c/0x1f0 fs/xattr.c:663 #1: ffff88811d567a30 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:869 [inline] #1: ffff88811d567a30 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: vfs_setxattr+0xbb/0x170 fs/xattr.c:320 #2: ffff88811eb025f0 (sb_internal#2){....}-{0:0}, at: xfs_trans_alloc+0x47/0x200 fs/xfs/xfs_trans.c:257 #3: ffff88811d567818 (&xfs_nondir_ilock_class){....}-{3:3}, at: xfs_trans_alloc_inode+0xa3/0x220 fs/xfs/xfs_trans.c:1081 4 locks held by syz.6.178/6954: #0: ffff88811029f400 (sb_writers#12){....}-{0:0}, at: filename_setxattr+0x8c/0x1f0 fs/xattr.c:663 #1: ffff88811d63c230 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:869 [inline] #1: ffff88811d63c230 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: vfs_setxattr+0xbb/0x170 fs/xattr.c:320 #2: ffff88811029f5f0 (sb_internal#2){....}-{0:0}, at: xfs_trans_alloc+0x47/0x200 fs/xfs/xfs_trans.c:257 #3: ffff88811d63c018 (&xfs_nondir_ilock_class){....}-{3:3}, at: xfs_trans_alloc_inode+0xa3/0x220 fs/xfs/xfs_trans.c:1081 4 locks held by syz.7.182/6957: 1 lock held by syz.3.245/7808: #0: ffff8881312a4400 (sb_writers#12){....}-{0:0}, at: do_pwritev fs/read_write.c:1153 [inline] #0: ffff8881312a4400 (sb_writers#12){....}-{0:0}, at: __do_sys_pwritev2 fs/read_write.c:1211 [inline] #0: ffff8881312a4400 (sb_writers#12){....}-{0:0}, at: __se_sys_pwritev2+0x65/0x100 fs/read_write.c:1202 4 locks held by syz.3.245/7907: #0: ffff8881312a4400 (sb_writers#12){....}-{0:0}, at: filename_setxattr+0x8c/0x1f0 fs/xattr.c:663 #1: ffff88812fc83b30 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:869 [inline] #1: ffff88812fc83b30 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: vfs_setxattr+0xbb/0x170 fs/xattr.c:320 #2: ffff8881312a45f0 (sb_internal#2){....}-{0:0}, at: xfs_trans_alloc+0x47/0x200 fs/xfs/xfs_trans.c:257 #3: ffff88812fc83918 (&xfs_nondir_ilock_class){....}-{3:3}, at: xfs_trans_alloc_inode+0xa3/0x220 fs/xfs/xfs_trans.c:1081 4 locks held by syz.9.325/9126: #0: ffff8881312a3400 (sb_writers#12){....}-{0:0}, at: filename_setxattr+0x8c/0x1f0 fs/xattr.c:663 #1: ffff88812fc82630 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: inode_lock include/linux/fs.h:869 [inline] #1: ffff88812fc82630 (&sb->s_type->i_mutex_key#16){....}-{3:3}, at: vfs_setxattr+0xbb/0x170 fs/xattr.c:320 #2: ffff8881312a35f0 (sb_internal#2){....}-{0:0}, at: xfs_trans_alloc+0x47/0x200 fs/xfs/xfs_trans.c:257 #3: ffff88812fc82418 (&xfs_nondir_ilock_class){....}-{3:3}, at: xfs_trans_alloc_inode+0xa3/0x220 fs/xfs/xfs_trans.c:1081 2 locks held by syz.0.486/10670: #0: ffff8881319270e0 (&type->s_umount_key#46/1){....}-{3:3}, at: alloc_super+0xd2/0x3b0 fs/super.c:345 #1: ffffffff836a2ee0 (wq_pool_mutex){....}-{3:3}, at: apply_wqattrs_lock kernel/workqueue.c:5179 [inline] #1: ffffffff836a2ee0 (wq_pool_mutex){....}-{3:3}, at: __alloc_workqueue+0x310/0x8e0 kernel/workqueue.c:5734 6 locks held by syz.2.483/10673: 2 locks held by syz.8.484/10677: #0: ffff8881319250e0 (&type->s_umount_key#46/1){....}-{3:3}, at: alloc_super+0xd2/0x3b0 fs/super.c:345 #1: ffffffff836a2ee0 (wq_pool_mutex){....}-{3:3}, at: apply_wqattrs_lock kernel/workqueue.c:5179 [inline] #1: ffffffff836a2ee0 (wq_pool_mutex){....}-{3:3}, at: __alloc_workqueue+0x310/0x8e0 kernel/workqueue.c:5734 2 locks held by syz.4.487/10683: #0: ffff8881319210e0 (&type->s_umount_key#46/1){....}-{3:3}, at: alloc_super+0xd2/0x3b0 fs/super.c:345 #1: ffffffff836a2ee0 (wq_pool_mutex){....}-{3:3}, at: apply_wqattrs_lock kernel/workqueue.c:5179 [inline] #1: ffffffff836a2ee0 (wq_pool_mutex){....}-{3:3}, at: __alloc_workqueue+0x310/0x8e0 kernel/workqueue.c:5734 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-syzkaller #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Call Trace: dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120 nmi_cpu_backtrace+0x109/0x170 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x8e/0x140 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline] watchdog+0x581/0x5b0 kernel/hung_task.c:491 kthread+0x203/0x230 kernel/kthread.c:463 ret_from_fork+0x9d/0x170 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 10673 Comm: syz.2.483 Not tainted 6.16.0-syzkaller #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:__raw_callee_save___pv_queued_spin_unlock+0x5/0x18 Code: 41 58 5f 5e 5a 59 e9 a5 be 88 fe 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 52 01 00 00 00 31 d2 f0 0f b0 17 75 06 5a e9 73 be 88 fe 56 0f b6 RSP: 0018:ffffc90000003ea8 EFLAGS: 00000082 RAX: 0000000000000000 RBX: 0000000000000086 RCX: 0000000000000000 RDX: 0000000000000003 RSI: ffffffff832e5bed RDI: ffffffff883a9720 RBP: ffffc90000003f78 R08: 0000000000080000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8255c420 R12: ffffffff8255c420 R13: 0000000000000000 R14: ffffffff883a9720 R15: ffff88811a8dc210 FS: 00007fb29569f6c0(0000) GS:ffff8882b3766000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f520b647000 CR3: 000000011d099000 CR4: 0000000000350ef0 Call Trace: pv_queued_spin_unlock arch/x86/include/asm/paravirt.h:562 [inline] queued_spin_unlock arch/x86/include/asm/qspinlock.h:57 [inline] do_raw_spin_unlock+0x5a/0x110 kernel/locking/spinlock_debug.c:142 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:150 [inline] _raw_spin_unlock_irqrestore+0x34/0xa0 kernel/locking/spinlock.c:194 debug_timer_deactivate kernel/time/timer.c:798 [inline] debug_deactivate kernel/time/timer.c:842 [inline] detach_timer kernel/time/timer.c:889 [inline] expire_timers kernel/time/timer.c:1781 [inline] __run_timers kernel/time/timer.c:2372 [inline] __run_timer_base+0x191/0x2a0 kernel/time/timer.c:2384 run_timer_base kernel/time/timer.c:2393 [inline] run_timer_softirq+0x3a/0x70 kernel/time/timer.c:2403 handle_softirqs+0xf5/0x2f0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0x48/0x110 kernel/softirq.c:680 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2061 [inline] RIP: 0010:vprintk_emit+0x21c/0x400 kernel/printk/printk.c:2449 Code: 24 08 00 00 00 00 9c 8f 44 24 08 f7 44 24 08 00 02 00 00 0f 85 cf 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 c7 08 cc 78 83 <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 41 56 e8 8b RSP: 0018:ffffc9000771f350 EFLAGS: 00000206 RAX: 7fdc31feda165100 RBX: 000000000000007b RCX: 7fdc31feda165100 RDX: 6708b2f57b08334f RSI: ffffffff832e5bed RDI: ffffffff8378cc08 RBP: 0000000000000000 R08: 0000000000080000 R09: 000000000000000e R10: 0000000000000000 R11: 0000000100001f23 R12: 0000000000000000 R13: 00000000ffffffff R14: ffffffff8140f7d4 R15: 0000000000000246 _printk+0x57/0x80 kernel/printk/printk.c:2475 __xfs_printk fs/xfs/xfs_message.c:24 [inline] _xfs_alert_tag+0xe1/0x170 fs/xfs/xfs_message.c:74 xfs_error_report fs/xfs/xfs_error.c:386 [inline] xfs_corruption_error+0x8f/0xa0 fs/xfs/xfs_error.c:407 xfs_alloc_fixup_trees+0x396/0x570 fs/xfs/libxfs/xfs_alloc.c:-1 xfs_alloc_cur_finish+0x28/0xc0 fs/xfs/libxfs/xfs_alloc.c:1117 xfs_alloc_ag_vextent_near+0x32b/0x490 fs/xfs/libxfs/xfs_alloc.c:1776 xfs_alloc_vextent_iterate_ags+0x1c0/0x280 fs/xfs/libxfs/xfs_alloc.c:3764 xfs_alloc_vextent_start_ag+0x107/0x1d0 fs/xfs/libxfs/xfs_alloc.c:3839 xfs_bmap_btalloc_best_length fs/xfs/libxfs/xfs_bmap.c:3627 [inline] xfs_bmap_btalloc fs/xfs/libxfs/xfs_bmap.c:3672 [inline] xfs_bmapi_allocate+0x6e5/0xab0 fs/xfs/libxfs/xfs_bmap.c:3947 xfs_bmapi_write+0x34c/0x6c0 fs/xfs/libxfs/xfs_bmap.c:4276 xfs_attr_rmtval_set_blk+0x4f/0x80 fs/xfs/libxfs/xfs_attr_remote.c:633 xfs_attr_rmtval_alloc fs/xfs/libxfs/xfs_attr.c:637 [inline] xfs_attr_set_iter+0x9d/0xba0 fs/xfs/libxfs/xfs_attr.c:866 xfs_attr_finish_item+0x2c/0xb0 fs/xfs/xfs_attr_item.c:506 xfs_defer_finish_one+0xda/0x310 fs/xfs/libxfs/xfs_defer.c:595 xfs_defer_finish_noroll+0x238/0x490 fs/xfs/libxfs/xfs_defer.c:707 xfs_trans_commit+0x2f/0x70 fs/xfs/xfs_trans.c:920 xfs_attr_set+0x494/0x4e0 fs/xfs/libxfs/xfs_attr.c:1150 xfs_xattr_set+0xa1/0xf0 fs/xfs/xfs_xattr.c:186 __vfs_setxattr+0x15d/0x170 fs/xattr.c:200 __vfs_setxattr_noperm+0x91/0x200 fs/xattr.c:234 vfs_setxattr+0xdc/0x170 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0xea/0x1f0 fs/xattr.c:665 path_setxattrat+0x1be/0x220 fs/xattr.c:713 __do_sys_lsetxattr fs/xattr.c:754 [inline] __se_sys_lsetxattr fs/xattr.c:750 [inline] __x64_sys_lsetxattr+0x27/0x40 fs/xattr.c:750 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8f/0x250 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb295c2e929 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:00007fb29569f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd RAX: ffffffffffffffda RBX: 00007fb295e55fa0 RCX: 00007fb295c2e929 RDX: 0000200000000000 RSI: 0000200000000240 RDI: 00002000000001c0 RBP: 00007fb295cb0b39 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fe37 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb295e55fa0 R15: 00007fffd6be5fe8