ci2 starts bisection 2024-01-04 13:25:07.410159428 +0000 UTC m=+66182.992585997 bisecting cause commit starting from ac865f00af293d081356bec56eea90815094a60e building syzkaller on 28c42cffb02cb3eb71fa7649e68149ca1818ff83 ensuring issue is reproducible on original commit ac865f00af293d081356bec56eea90815094a60e testing commit ac865f00af293d081356bec56eea90815094a60e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6dad8b1aafed6c23c767375feb3dd18435d285004f747eb0c4ec04b37e0f15ec all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit ac865f00af293d081356bec56eea90815094a60e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1877c6640063fa4ec6323966b637a551d00a35954c37a92a8b3f3049503bf0ad all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed kconfig minimization: base=3915 full=7652 leaves diff=2007 split chunks (needed=false): <2007> split chunk #0 of len 2007 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ac865f00af293d081356bec56eea90815094a60e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 24f23f079342ce1680fc0af518d1797b3c96df376cd0ebc90ec774ac19274553 all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ac865f00af293d081356bec56eea90815094a60e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 123e6c578fad181fdcc4ee06785fab348d698db1ad1c65b66183994846c153bf all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit ac865f00af293d081356bec56eea90815094a60e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2e9868223a97807888fa8a35909f046a6cce4127e4263bb07ea81023d9b9e630 all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit ac865f00af293d081356bec56eea90815094a60e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d2d08eee22cd0996d1137a241b4e56f63f0ca7965f86a8004ab1700b072c4c6b all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ac865f00af293d081356bec56eea90815094a60e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 758fb03884740c990d4d7dbfc721e7e1713840e6a9d4fa7392229604c6334623 all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] the chunk can be dropped minimized to 402 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IP_SCTP L2TP LIBNVDIMM MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS 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 NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN 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 ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_POOL 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 PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_4 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD 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_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SECURITY_SMACK_NETFILTER SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMC SMC_DIAG SMSC_PHY 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_DYNAMIC_MINORS 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_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 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_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO 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 SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_SINGLE SQUASHFS_DECOMP_SINGLE 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 STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSFB SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TASKS_TRACE_RCU 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 TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TMPFS_QUOTA 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 TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI 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 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_CDC_PHONET USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_HOST 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_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VXLAN WIRELESS WLAN ZONE_DEVICE] disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.6 v6.5 v6.4 v6.2 v6.0 v5.18 v5.16 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 29 release tags testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: af37607c08cab9d6061c7a14fcfe07578e1afa173765785bb3cc1f5e40e8949c all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e310163fed44223daf5c7d0a6a86162524b7d5f37f27be1e4165c045b0233ae2 all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3531e1e0f1b37ed7ba7ea92e8e0f3961f7b3378ba2bbbab0b50f9734ca70ffbd run #0: crashed: INFO: task hung in deactivate_super run #1: crashed: INFO: task hung in deactivate_super run #2: crashed: INFO: task hung in deactivate_super run #3: crashed: INFO: task hung in corrupted run #4: crashed: INFO: task hung in deactivate_super run #5: crashed: INFO: task hung in deactivate_super run #6: crashed: INFO: task hung in deactivate_super run #7: crashed: INFO: task hung in deactivate_super run #8: crashed: INFO: task hung in deactivate_super run #9: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1fc3d6d22ab0e4fb64d36465604f6f102f0c25bbd03cdd2d3fa8d7e250e0fd43 all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8403532e21348d8e0d3c8ac1368d8f96fb03f59163f13e51a1776763ff92b58f run #0: crashed: INFO: task hung in corrupted run #1: crashed: INFO: task hung in deactivate_super run #2: crashed: INFO: task hung in deactivate_super run #3: crashed: INFO: task hung in deactivate_super run #4: crashed: INFO: task hung in deactivate_super run #5: crashed: INFO: task hung in deactivate_super run #6: crashed: INFO: task hung in deactivate_super run #7: crashed: INFO: task hung in deactivate_super run #8: OK run #9: OK representative crash: INFO: task hung in corrupted, types: [HANG] testing release v5.18 testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5cf9f40e508609d7e4fc5ea660741cad2b67749536df1e28b6c613419c36e29b all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v5.16 testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8df1948edbb2517c817a24718eb0872c573cadd79e5a05a65459e0ae3c56eb5c all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v5.14 testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 50e9b230000418f23fdc5522d3fed34ad4f7eef58a2e88b4c973954eb77a17fe all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cf1fe6157977091a641cefb8ae89decfcf1c4300f4c5ece41de5e6b54b9e282a all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82d78548fb759434c502459d5ef81e1b182d4f85ff80e7e35d505cd4b3f93aab all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 5ce711927e1ca3862f78ac7b506cc48c31f07c776885916c38aa551f75b6e3e4 all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: d69de288c0f822cb3563dda170a201599e9fc0eff844a93b2250279b300c709e run #0: crashed: INFO: task hung in deactivate_super run #1: crashed: INFO: task hung in deactivate_super run #2: crashed: INFO: task hung in corrupted run #3: crashed: INFO: task hung in deactivate_super run #4: crashed: INFO: task hung in deactivate_super run #5: crashed: INFO: task hung in deactivate_super run #6: crashed: INFO: task hung in deactivate_super run #7: crashed: INFO: task hung in deactivate_super run #8: crashed: INFO: task hung in deactivate_super run #9: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 5056fc03832e661dc5d62cf9492ae8ab98dd5cbcc6496ba40be994b6661e7059 all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: a97edceee9e4cea72c62b5d67984e5c3e85c08235f2c09a2f3da5236ec4a73a6 all runs: crashed: INFO: task hung in deactivate_super representative crash: INFO: task hung in deactivate_super, types: [HANG] crash still not fixed/happens on the oldest tested release revisions tested: 21, total time: 3h47m23.390056109s (build: 1h16m35.598791869s, test: 2h23m59.671783134s) oldest tested release already had the bug or it had kernel test errors commit msg: Linux 4.19 crash: INFO: task hung in deactivate_super REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 1024, max batch 900, max commit age 5, max trans age 5 REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop0): Using rupasov hash to sort names INFO: task syz-executor.3:2558 blocked for more than 140 seconds. Not tainted 4.19.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D11080 2558 1 0x00080006 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x2ee/0x8c0 kernel/sched/core.c:3473 schedule+0x31/0x90 kernel/sched/core.c:3517 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:566 [inline] rwsem_down_write_failed+0x17c/0x2a0 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x3e/0x60 kernel/locking/rwsem.c:72 deactivate_super fs/super.c:359 [inline] deactivate_super+0x44/0x50 fs/super.c:356 cleanup_mnt+0x36/0x70 fs/namespace.c:1098 __cleanup_mnt+0xd/0x10 fs/namespace.c:1105 task_work_run+0x89/0xb0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0xd8/0xf0 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x159/0x160 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fd24e96d017 Code: Bad RIP value. RSP: 002b:00007fff0f2463f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd24e96d017 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff0f2464b0 RBP: 00007fff0f2464b0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff0f247570 R13: 00007fd24e9b73b9 R14: 000000000000a778 R15: 0000000000000002 INFO: task syz-executor.5:5051 blocked for more than 140 seconds. Not tainted 4.19.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D13864 5051 2577 0x00080006 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x2ee/0x8c0 kernel/sched/core.c:3473 schedule+0x31/0x90 kernel/sched/core.c:3517 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x103/0x170 kernel/locking/rwsem-xadd.c:286 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x34/0x50 kernel/locking/rwsem.c:26 iterate_supers+0x78/0x100 fs/super.c:631 quota_sync_all fs/quota/quota.c:67 [inline] kernel_quotactl+0x2e6/0x8b0 fs/quota/quota.c:854 __do_sys_quotactl fs/quota/quota.c:892 [inline] __se_sys_quotactl fs/quota/quota.c:889 [inline] __x64_sys_quotactl+0x19/0x20 fs/quota/quota.c:889 do_syscall_64+0x63/0x160 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f509ec15ce9 Code: Bad RIP value. RSP: 002b:00007f509e7980c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 00007f509ed34f80 RCX: 00007f509ec15ce9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100 RBP: 00007f509ec6247a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f509ed34f80 R15: 00007ffdc4b1e118 INFO: task syz-executor.4:5054 blocked for more than 140 seconds. Not tainted 4.19.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D14072 5054 2565 0x00080006 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x2ee/0x8c0 kernel/sched/core.c:3473 schedule+0x31/0x90 kernel/sched/core.c:3517 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x103/0x170 kernel/locking/rwsem-xadd.c:286 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x34/0x50 kernel/locking/rwsem.c:26 iterate_supers+0x78/0x100 fs/super.c:631 quota_sync_all fs/quota/quota.c:67 [inline] kernel_quotactl+0x2e6/0x8b0 fs/quota/quota.c:854 __do_sys_quotactl fs/quota/quota.c:892 [inline] __se_sys_quotactl fs/quota/quota.c:889 [inline] __x64_sys_quotactl+0x19/0x20 fs/quota/quota.c:889 do_syscall_64+0x63/0x160 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f0bf8a41ce9 Code: Bad RIP value. RSP: 002b:00007f0bf85c40c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 00007f0bf8b60f80 RCX: 00007f0bf8a41ce9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100 RBP: 00007f0bf8a8e47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f0bf8b60f80 R15: 00007ffe92db4928 INFO: task syz-executor.0:5060 blocked for more than 140 seconds. Not tainted 4.19.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D14072 5060 2560 0x00080006 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x2ee/0x8c0 kernel/sched/core.c:3473 schedule+0x31/0x90 kernel/sched/core.c:3517 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x103/0x170 kernel/locking/rwsem-xadd.c:286 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x34/0x50 kernel/locking/rwsem.c:26 iterate_supers+0x78/0x100 fs/super.c:631 quota_sync_all fs/quota/quota.c:67 [inline] kernel_quotactl+0x2e6/0x8b0 fs/quota/quota.c:854 __do_sys_quotactl fs/quota/quota.c:892 [inline] __se_sys_quotactl fs/quota/quota.c:889 [inline] __x64_sys_quotactl+0x19/0x20 fs/quota/quota.c:889 do_syscall_64+0x63/0x160 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fc1ca5b4ce9 Code: Bad RIP value. RSP: 002b:00007fc1ca1370c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 00007fc1ca6d3f80 RCX: 00007fc1ca5b4ce9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100 RBP: 00007fc1ca60147a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fc1ca6d3f80 R15: 00007ffca4def818 INFO: task syz-executor.2:5065 blocked for more than 140 seconds. Not tainted 4.19.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D14072 5065 2580 0x00080006 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x2ee/0x8c0 kernel/sched/core.c:3473 schedule+0x31/0x90 kernel/sched/core.c:3517 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:269 [inline] rwsem_down_read_failed+0x103/0x170 kernel/locking/rwsem-xadd.c:286 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x34/0x50 kernel/locking/rwsem.c:26 iterate_supers+0x78/0x100 fs/super.c:631 quota_sync_all fs/quota/quota.c:67 [inline] kernel_quotactl+0x2e6/0x8b0 fs/quota/quota.c:854 __do_sys_quotactl fs/quota/quota.c:892 [inline] __se_sys_quotactl fs/quota/quota.c:889 [inline] __x64_sys_quotactl+0x19/0x20 fs/quota/quota.c:889 do_syscall_64+0x63/0x160 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fb8b49e8ce9 Code: Bad RIP value. RSP: 002b:00007fb8b456b0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 00007fb8b4b07f80 RCX: 00007fb8b49e8ce9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100 RBP: 00007fb8b4a3547a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fb8b4b07f80 R15: 00007ffcc297ab58 Showing all locks held in the system: 1 lock held by khungtaskd/443: #0: 00000000377d4ced (rcu_read_lock){....}, at: debug_show_all_locks+0x23/0x10d kernel/locking/lockdep.c:4435 2 locks held by getty/1987: #0: 00000000b1af770f (&tty->ldisc_sem){....}, at: ldsem_down_read+0xe/0x10 drivers/tty/tty_ldsem.c:353 #1: 000000007a3fa9c0 (&ldata->atomic_read_lock){....}, at: n_tty_read+0xbc/0x860 drivers/tty/n_tty.c:2140 1 lock held by syz-executor.3/2558: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: deactivate_super fs/super.c:359 [inline] #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: deactivate_super+0x44/0x50 fs/super.c:356 5 locks held by syz-executor.1/5037: 1 lock held by syz-executor.5/5051: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.4/5054: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.0/5060: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.2/5065: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.1/6921: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.4/7068: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.5/7085: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.2/7131: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.0/7141: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.1/8415: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.4/8773: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.5/8782: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 1 lock held by syz-executor.2/8799: #0: 00000000b91d26a0 (&type->s_umount_key#54){....}, at: iterate_supers+0x78/0x100 fs/super.c:631 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 443 Comm: khungtaskd Not tainted 4.19.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x89/0xba lib/dump_stack.c:113 nmi_cpu_backtrace.cold.0+0x14/0x53 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0xc5/0xce lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:144 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0x2c7/0x400 kernel/hung_task.c:265 kthread+0x119/0x130 kernel/kthread.c:246 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:413 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5031 Comm: loop3 Not tainted 4.19.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:kthread_worker_fn+0x87/0x1a0 kernel/kthread.c:662 Code: 4c 89 73 68 e8 ba 17 ed 00 4d 85 f6 0f 84 9a 00 00 00 65 48 8b 04 25 00 4f 01 00 4c 89 f7 48 c7 40 10 00 00 00 00 41 ff 56 10 <49> c7 c6 24 eb 91 83 65 48 8b 04 25 00 4f 01 00 f6 40 25 80 0f 84 RSP: 0018:ffffc90001defec8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff88013930f5d0 RCX: ffffc90001defce4 RDX: 0000000000000001 RSI: 0000000000000001 RDI: 00000000ffffffff RBP: ffffc90001defef0 R08: ffff880138e14680 R09: ffff88013ba21e58 R10: 00000000000af5c8 R11: 00000000000af5c8 R12: ffff88013930f5d8 R13: ffff88013930f610 R14: ffff88013a3e0730 R15: ffff880138e14680 FS: 0000000000000000(0000) GS:ffff88013ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f271620d866 CR3: 0000000134fe1000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: loop_kthread_worker_fn+0x19/0x20 drivers/block/loop.c:890 kthread+0x119/0x130 kernel/kthread.c:246 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:413