ci2 starts bisection 2024-11-11 06:54:52.002170139 +0000 UTC m=+221675.233410958 bisecting fixing commit since e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1 building syzkaller on 6baf506947ba27ed9ce775cf9351cb0886166083 ensuring issue is reproducible on original commit e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1 testing commit e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cad19dc5b6bd5a7dca82b264b35cef96997c0748944775db7caf2e074acdb3fd run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: INFO: rcu detected stall in corrupted run #13: crashed: INFO: task hung in blkdev_get_by_dev run #14: crashed: INFO: task hung in blkdev_get_by_dev run #15: crashed: INFO: rcu detected stall in corrupted run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d78c87a0ec5d86834be0e61891601e6b7d2b15de2b71e1b6b5f7755fdab73ff3 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: OK run #9: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] the bug reproduces without the instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed kconfig minimization: base=3824 full=7454 leaves diff=1987 split chunks (needed=false): <1987> split chunk #0 of len 1987 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing commit e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: caf30066b6c6df6b5e04b8e1067aafc8e2f5485e57b4c58cb7d407a98bf3d663 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: INFO: rcu detected stall in corrupted, types: [HANG] testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 223f55c186a2007a6d4908c0ef86185dcf6a04921a4eff21012954f214460942 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: INFO: rcu detected stall in corrupted run #13: crashed: INFO: rcu detected stall in corrupted run #14: crashed: INFO: task hung in blkdev_get_by_dev run #15: crashed: INFO: rcu detected stall in corrupted run #16: crashed: INFO: rcu detected stall in corrupted run #17: crashed: INFO: rcu detected stall in corrupted run #18: crashed: INFO: rcu detected stall in corrupted run #19: OK representative crash: INFO: rcu detected stall in corrupted, 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 e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a9f9e84d0ce5cddac1146e9dfb07cf31ecf617175f25be2e25f7f3589b8cb22 run #0: crashed: INFO: task hung in blkdev_get_by_dev run #1: crashed: INFO: task hung in blkdev_put run #2: crashed: INFO: task hung in blkdev_get_by_dev run #3: crashed: INFO: task hung in blkdev_get_by_dev run #4: crashed: INFO: task hung in blkdev_get_by_dev run #5: crashed: INFO: task hung in blkdev_get_by_dev run #6: crashed: INFO: task hung in blkdev_put run #7: crashed: INFO: task hung in blkdev_get_by_dev run #8: crashed: INFO: task hung in blkdev_put run #9: crashed: INFO: task hung in blkdev_get_by_dev run #10: crashed: INFO: task hung in blkdev_put run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in blkdev_get_by_dev, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ce86221ae1fcd253fb06cda87087c59a9f196e053fa352193ff89c757d5d4a2a run #0: crashed: INFO: task hung in blkdev_get_by_dev run #1: crashed: INFO: task hung in blkdev_get_by_dev run #2: crashed: INFO: task hung in blkdev_get_by_dev run #3: crashed: INFO: task hung in blkdev_get_by_dev run #4: crashed: INFO: task hung in blkdev_get_by_dev run #5: crashed: INFO: task hung in blkdev_get_by_dev run #6: crashed: INFO: task hung in blkdev_get_by_dev run #7: crashed: INFO: task hung in blkdev_get_by_dev run #8: OK run #9: OK run #10: crashed: INFO: task hung in blkdev_put run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in blkdev_get_by_dev, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e5cd595e23c1a075359a337c0e5c3a4f2dc28dd1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb6c4ce7de61135465c6e40ef5bbdbd4d234577b35f6a7c8786c927553344ee6 run #0: crashed: INFO: task hung in blkdev_put run #1: crashed: INFO: task hung in blkdev_get_by_dev run #2: crashed: INFO: task hung in blkdev_get_by_dev run #3: crashed: INFO: task hung in blkdev_get_by_dev run #4: crashed: INFO: task hung in blkdev_get_by_dev run #5: OK run #6: crashed: INFO: task hung in blkdev_get_by_dev run #7: crashed: INFO: task hung in blkdev_get_by_dev run #8: crashed: INFO: task hung in blkdev_get_by_dev run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in blkdev_put, types: [HANG] the chunk can be dropped minimized to 398 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_PLATFORM_PROFILE ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ASM_MODVERSIONS ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_INTEGRITY_T10 BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_MQ_RDMA BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_CMTP BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_HIDP BT_HS BT_INTEL BT_LE BT_LEDS BT_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_BQ24190 CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MBYTES CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD CRYPTO_CTS CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECB CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_VMAC CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DIMLIB DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_BOCHS DRM_BUDDY DRM_CIRRUS_QEMU DRM_DEBUG_MM DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed testing current HEAD d7039b844a1c0817aef0c66c2f87cd6b29fbd29e testing commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e6f41515894663532d4109785287470a3b25f12fd4e24f36fac26395de8b2995 run #0: crashed: lost connection to test machine run #1: crashed: INFO: task hung in blkdev_put run #2: crashed: INFO: task hung in blkdev_get_by_dev run #3: crashed: INFO: task hung in blkdev_get_by_dev run #4: crashed: INFO: task hung in blkdev_get_by_dev run #5: crashed: INFO: task hung in blkdev_get_by_dev run #6: crashed: INFO: task hung in blkdev_get_by_dev run #7: crashed: INFO: task hung in blkdev_get_by_dev run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: INFO: task hung in blkdev_put, types: [HANG] crash still not fixed/happens on the oldest tested release reproducer is flaky (0.40 repro chance estimate) revisions tested: 8, total time: 2h28m51.415997503s (build: 46m30.797699234s, test: 1h34m16.507958435s) crash still not fixed or there were kernel test errors commit msg: Linux 6.1.116 crash: INFO: task hung in blkdev_put INFO: task syz-executor.2:3446 blocked for more than 143 seconds. Not tainted 6.1.116-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:13296 pid:3446 ppid:1396 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5241 [inline] __schedule+0x591/0x860 kernel/sched/core.c:6558 schedule+0x50/0xb0 kernel/sched/core.c:6634 schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x43b/0x940 kernel/locking/mutex.c:747 blkdev_put+0x4e/0x1a0 block/bdev.c:913 blkdev_close+0xf/0x20 block/fops.c:514 __fput+0x7a/0x220 fs/file_table.c:320 task_work_run+0x79/0xa0 kernel/task_work.c:203 exit_task_work include/linux/task_work.h:39 [inline] do_exit+0x2d4/0xa30 kernel/exit.c:871 do_group_exit+0x81/0xa0 kernel/exit.c:1021 get_signal+0x6fd/0x7a0 kernel/signal.c:2870 arch_do_signal_or_restart+0x8c/0x7c0 arch/x86/kernel/signal.c:871 exit_to_user_mode_loop+0x61/0xc0 kernel/entry/common.c:174 exit_to_user_mode_prepare+0x64/0xb0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x27/0x1b0 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fa50567dda9 RSP: 002b:00007fa5049fe178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fa5057ac058 RCX: 00007fa50567dda9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa5057ac058 RBP: 00007fa5057ac050 R08: 00007fa5049fe6c0 R09: 00007fa5049fe6c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa5057ac05c R13: 000000000000006e R14: 00007ffec6714f00 R15: 00007ffec6714fe8 Showing all locks held in the system: 2 locks held by kworker/u4:0/9: #0: ffff888100068938 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x1da/0x470 kernel/workqueue.c:2267 #1: ffffc90000053e68 ((work_completion)(&sub_info->work)){....}-{0:0}, at: process_one_work+0x1da/0x470 kernel/workqueue.c:2267 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8377c0c8 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp kernel/rcu/tasks.h:517 [inline] #0: ffffffff8377c0c8 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x98/0x450 kernel/rcu/tasks.h:562 1 lock held by rcu_tasks_trace/13: #0: ffffffff8377c718 (rcu_tasks_trace.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp kernel/rcu/tasks.h:517 [inline] #0: ffffffff8377c718 (rcu_tasks_trace.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x98/0x450 kernel/rcu/tasks.h:562 1 lock held by khungtaskd/28: #0: ffffffff8377bfa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8377bfa0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #0: ffffffff8377bfa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2c/0x100 kernel/locking/lockdep.c:6510 2 locks held by kworker/u4:2/39: 2 locks held by getty/908: #0: ffff88810a6d3898 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x1c/0x40 drivers/tty/tty_ldisc.c:244 #1: ffffc9000163b2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x20a/0x8e0 drivers/tty/n_tty.c:2198 3 locks held by kworker/u4:3/934: #0: ffff888237c2d518 (&rq->__lock){....}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline] #0: ffff888237c2d518 (&rq->__lock){....}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1355 [inline] #0: ffff888237c2d518 (&rq->__lock){....}-{2:2}, at: rq_lock kernel/sched/sched.h:1645 [inline] #0: ffff888237c2d518 (&rq->__lock){....}-{2:2}, at: __schedule+0xae/0x860 kernel/sched/core.c:6474 #1: ffffc90001007e68 ((work_completion)(&sub_info->work)){....}-{0:0}, at: process_one_work+0x1da/0x470 kernel/workqueue.c:2267 #2: ffff888237c2d518 (&rq->__lock){....}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline] #2: ffff888237c2d518 (&rq->__lock){....}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1355 [inline] #2: ffff888237c2d518 (&rq->__lock){....}-{2:2}, at: rq_lock kernel/sched/sched.h:1645 [inline] #2: ffff888237c2d518 (&rq->__lock){....}-{2:2}, at: __schedule+0xae/0x860 kernel/sched/core.c:6474 2 locks held by kworker/u4:4/1423: #0: ffff888100068938 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x1da/0x470 kernel/workqueue.c:2267 #1: ffffc90001a33e68 ((work_completion)(&sub_info->work)){....}-{0:0}, at: process_one_work+0x1da/0x470 kernel/workqueue.c:2267 1 lock held by syz-executor.1/3423: 1 lock held by syz-executor.4/3438: 2 locks held by syz-executor.0/3439: 1 lock held by syz-executor.2/3446: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_put+0x4e/0x1a0 block/bdev.c:913 1 lock held by syz-executor.3/3444: 1 lock held by syz-executor.2/4485: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.1/5390: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.4/5435: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.0/5457: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.3/5464: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.2/6169: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.0/7467: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.1/7472: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.4/7470: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.3/7478: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.2/7884: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.0/9446: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.3/9467: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.4/9472: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.1/9494: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by syz-executor.2/9899: #0: ffff8881022fd4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x9b/0x2f0 block/bdev.c:815 1 lock held by modprobe/10280: 1 lock held by modprobe/10300: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.116-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x7f/0xc2 lib/dump_stack.c:106 nmi_cpu_backtrace+0x13e/0x160 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x9a/0x150 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0x54d/0x570 kernel/hung_task.c:377 kthread+0xd1/0xe0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 3439 Comm: syz-executor.0 Not tainted 6.1.116-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:169 [inline] RIP: 0010:unwind_next_frame+0xc6/0xa60 arch/x86/kernel/unwind_orc.c:448 Code: 85 11 84 48 29 c1 48 c1 e9 02 31 d2 80 3d e9 86 2f 02 00 0f 45 d1 8d 42 ff 39 f0 0f 86 20 09 00 00 89 f0 8b 0c 85 1c 04 0b 84 <89> f0 ff c0 44 8b 04 85 1c 04 0b 84 41 ff c0 48 8d 04 49 4c 8d 8c RSP: 0018:ffffc90001f6f838 EFLAGS: 00000216 RAX: 00000000000003bf RBX: ffffffff8103bffa RCX: 0000000000002078 RDX: 000000000001a041 RSI: 00000000000003bf RDI: ffffffff81062608 RBP: ffffc90001f6f940 R08: 0000000000000005 R09: ffffffff83cdc37c R10: 0000000000000000 R11: 0000302e726f7475 R12: ffff88810637b700 R13: 0000000000000001 R14: ffffc90001f6f938 R15: ffffc90001f6f8a8 FS: 00005555763d7480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efd80fb70f0 CR3: 000000010d7b6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __unwind_start+0x17c/0x1c0 arch/x86/kernel/unwind_orc.c:717 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x42/0x60 kernel/stacktrace.c:122 save_stack+0xee/0x140 mm/page_owner.c:127 __set_page_owner+0x1f/0x110 mm/page_owner.c:190 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x13c/0x160 mm/page_alloc.c:2517 prep_new_page mm/page_alloc.c:2524 [inline] get_page_from_freelist+0x18d7/0x1b70 mm/page_alloc.c:4313 __alloc_pages+0x11b/0x270 mm/page_alloc.c:5589 folio_alloc+0xf/0x30 mm/mempolicy.c:2292 filemap_alloc_folio+0x40/0x190 mm/filemap.c:999 page_cache_ra_unbounded+0xd6/0x230 mm/readahead.c:248 do_async_mmap_readahead mm/filemap.c:3163 [inline] filemap_fault+0x1a4/0x660 mm/filemap.c:3217 __do_fault+0x38/0x100 mm/memory.c:4278 do_shared_fault mm/memory.c:4684 [inline] do_fault mm/memory.c:4762 [inline] handle_pte_fault mm/memory.c:5029 [inline] __handle_mm_fault mm/memory.c:5171 [inline] handle_mm_fault+0xc35/0x14a0 mm/memory.c:5292 do_user_addr_fault arch/x86/mm/fault.c:1340 [inline] handle_page_fault arch/x86/mm/fault.c:1431 [inline] exc_page_fault+0x21c/0x500 arch/x86/mm/fault.c:1487 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608 RIP: 0033:0x7fd41f84ffed Code: 48 83 c4 08 4c 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 00 e8 93 cd ff ff eb 8d 90 31 c0 66 0f 1f 44 00 00 41 0f b6 14 04 <88> 14 07 48 83 c0 01 48 39 c3 75 ef 48 01 df 49 01 dc 49 89 7e 28 RSP: 002b:00007ffd86922b40 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000000030 RSI: 00007fd41f8c98a3 RDI: 0000000020000200 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffd86923460 R11: 0000000000000246 R12: 00007fd41f8c98a3 R13: 0000000000000002 R14: 00007ffd869230d0 R15: 00007ffd86923210