ci starts bisection 2023-08-21 05:08:07.718467678 +0000 UTC m=+230052.435829675
bisecting fixing commit since 72a85e2b0a1e1e6fb4ee51ae902730212b2de25c
building syzkaller on 9da18ae8fa827d046ef8da48cc23c97418553c23
ensuring issue is reproducible on original commit 72a85e2b0a1e1e6fb4ee51ae902730212b2de25c
testing commit 72a85e2b0a1e1e6fb4ee51ae902730212b2de25c gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6955546a66a1ccda3007becef358e479a9bd5941d4155cdde3d8e4ca147e84fd
all runs: crashed: INFO: task hung in blkdev_fallocate
representative crash: INFO: task hung in blkdev_fallocate, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed
testing commit 72a85e2b0a1e1e6fb4ee51ae902730212b2de25c gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: fd8336137247343c6ddee1bdaa7e9a47e581dc1e643d2f9ca0b50e598e9985db
all runs: crashed: INFO: task hung in blkdev_fallocate
representative crash: INFO: task hung in blkdev_fallocate, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
kconfig minimization: base=3876 full=7548 leaves diff=1999
split chunks (needed=false): <1999>
split chunk #0 of len 1999 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 72a85e2b0a1e1e6fb4ee51ae902730212b2de25c gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0da50e77a8b4d7862b2dd66f20d395d0cf1a0d463e44bf130e69fcd71ae47374
all runs: OK
false negative chance: 0.000
testing without sub-chunk 2/5
disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit 72a85e2b0a1e1e6fb4ee51ae902730212b2de25c gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 576a885ac097bc9f3ef8317224712b54526b91c2183b9e84d433a68578bdea44
all runs: crashed: INFO: task hung in blkdev_fallocate
representative crash: INFO: task hung in blkdev_fallocate, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 72a85e2b0a1e1e6fb4ee51ae902730212b2de25c gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: af6c8c0ecfa0d52535c98bb847919c13852563e4b76629e6d25646231ca4dca2
all runs: crashed: INFO: task hung in blkdev_fallocate
representative crash: INFO: task hung in blkdev_fallocate, 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 72a85e2b0a1e1e6fb4ee51ae902730212b2de25c gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 95ee28f9dc8fab5e443beb7de4be8d2ffd0b6cea3e5ff922ffd4d20446657a9d
all runs: crashed: INFO: task hung in blkdev_fallocate
representative crash: INFO: task hung in blkdev_fallocate, 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 72a85e2b0a1e1e6fb4ee51ae902730212b2de25c gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 006897324e671eaf96ee85f285277fb73980cd3957ee7c22513c85c22c989afb
all runs: crashed: INFO: task hung in blkdev_fallocate
representative crash: INFO: task hung in blkdev_fallocate, types: [HANG]
the chunk can be dropped
minimized to 400 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 ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP 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_FD 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 BLOCK_COMPAT 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_POLL_SYNC 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_LE_L2CAP_ECRED BT_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL BUILD_BIN2C 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 CC_HAS_UBSAN_BOUNDS 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_CFB 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_OFB 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_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 DCB DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT 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 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 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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing current HEAD 706a741595047797872e669b3101429ab8d378ef
testing commit 706a741595047797872e669b3101429ab8d378ef gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d1f3d39ed14c0f5a45d31f498f04f038cac3f87b8899fc03ce964f0a9b3759ca
all runs: crashed: INFO: task hung in blkdev_fallocate
representative crash: INFO: task hung in blkdev_fallocate, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 1h46m23.24586564s (build: 50m43.493912088s, test: 50m33.532671581s)
crash still not fixed on HEAD or HEAD had kernel test errors
commit msg: Linux 6.5-rc7
crash: INFO: task hung in blkdev_fallocate
INFO: task syz-executor.0:2326 blocked for more than 143 seconds.
Not tainted 6.5.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:14392 pid:2326 ppid:1921 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x6aa/0x970 kernel/sched/core.c:6710
schedule+0x54/0xc0 kernel/sched/core.c:6786
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6845
rwsem_down_write_slowpath+0x31b/0x720 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x60/0x80 kernel/locking/rwsem.c:1574
filemap_invalidate_lock include/linux/fs.h:816 [inline]
blkdev_fallocate+0xc3/0x1a0 block/fops.c:660
vfs_fallocate+0x179/0x1b0 fs/open.c:324
madvise_remove mm/madvise.c:1005 [inline]
madvise_vma_behavior mm/madvise.c:1029 [inline]
madvise_walk_vmas mm/madvise.c:1264 [inline]
do_madvise+0xaa4/0x15b0 mm/madvise.c:1444
__do_sys_madvise mm/madvise.c:1457 [inline]
__se_sys_madvise mm/madvise.c:1455 [inline]
__x64_sys_madvise+0x23/0x30 mm/madvise.c:1455
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f418747c859
RSP: 002b:00007f41880ed0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f418759c050 RCX: 00007f418747c859
RDX: 0000000000000009 RSI: 0000000000600003 RDI: 0000000020000000
RBP: 00007f41874d8ad0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f418759c050 R15: 00007ffea9796278
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8357c9e8 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp kernel/rcu/tasks.h:522 [inline]
#0: ffffffff8357c9e8 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x9c/0x460 kernel/rcu/tasks.h:567
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8357ccc8 (rcu_tasks_trace.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp kernel/rcu/tasks.h:522 [inline]
#0: ffffffff8357ccc8 (rcu_tasks_trace.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x9c/0x460 kernel/rcu/tasks.h:567
1 lock held by khungtaskd/28:
#0: ffffffff8357c8c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 include/trace/events/initcall.h:48
2 locks held by getty/1356:
#0: ffff888108e85898 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x40 drivers/tty/tty_ldisc.c:243
#1: ffffc90002b072f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x218/0x8f0 drivers/tty/n_tty.c:2187
3 locks held by syz-executor.0/2325:
1 lock held by syz-executor.0/2326:
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:816 [inline]
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: blkdev_fallocate+0xc3/0x1a0 block/fops.c:660
1 lock held by syz-executor.0/2730:
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:826 [inline]
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: page_cache_ra_unbounded+0x5d/0x240 mm/readahead.c:225
1 lock held by syz-executor.0/2731:
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:816 [inline]
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: blkdev_fallocate+0xc3/0x1a0 block/fops.c:660
1 lock held by syz-executor.0/3135:
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:826 [inline]
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: page_cache_ra_unbounded+0x5d/0x240 mm/readahead.c:225
1 lock held by syz-executor.0/3136:
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:816 [inline]
#0: ffff8881105daa48 (mapping.invalidate_lock#2){....}-{3:3}, at: blkdev_fallocate+0xc3/0x1a0 block/fops.c:660
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x83/0xd0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x142/0x160 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x8b/0x130 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0x4f4/0x520 kernel/hung_task.c:379
kthread+0xe5/0x100 kernel/kthread.c:389
ret_from_fork+0x2e/0x40 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2325 Comm: syz-executor.0 Not tainted 6.5.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:unwind_done arch/x86/include/asm/unwind.h:50 [inline]
RIP: 0010:arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:24
Code: 32 48 8d 9d 70 ff ff ff 48 89 df e8 a9 73 02 00 48 85 c0 74 1e 4c 89 f7 48 89 c6 41 ff d5 84 c0 74 11 48 89 df e8 ef 73 02 00 <83> bd 70 ff ff ff 00 75 d5 65 48 8b 04 25 28 00 00 00 48 3b 45 d0
RSP: 0018:ffffc900023c31e8 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffffc900023c31e8 RCX: 0000000080000000
RDX: ffffc900023c4000 RSI: ffffc900023c38d8 RDI: 00000000ffffffff
RBP: ffffc900023c3278 R08: 0000000000000011 R09: ffffffff83b6ee4c
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888108aad280
R13: ffffffff81213210 R14: ffffc900023c3288 R15: 0000000000000000
FS: 00007f418810e6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555556eb938 CR3: 0000000102b1d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
stack_trace_save+0x46/0x70 kernel/stacktrace.c:122
save_stack+0xee/0x140 mm/page_owner.c:128
__reset_page_owner+0x2f/0x80 mm/page_owner.c:149
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1161 [inline]
free_unref_page_prepare+0x38c/0x410 mm/page_alloc.c:2348
free_unref_page_list+0x7f/0x360 mm/page_alloc.c:2489
shrink_folio_list+0x22c2/0x27e0 mm/vmscan.c:2187
shrink_inactive_list mm/vmscan.c:2614 [inline]
shrink_list mm/vmscan.c:2855 [inline]
shrink_lruvec+0x8b2/0xdb0 mm/vmscan.c:6303
shrink_node_memcgs mm/vmscan.c:6489 [inline]
shrink_node+0x460/0x8d0 mm/vmscan.c:6524
shrink_zones mm/vmscan.c:6763 [inline]
do_try_to_free_pages+0x200/0x580 mm/vmscan.c:6825
try_to_free_mem_cgroup_pages+0x17e/0x2c0 mm/vmscan.c:7140
reclaim_high+0x88/0xb0 mm/memcontrol.c:2403
mem_cgroup_handle_over_high+0x62/0x150 mm/memcontrol.c:2588
try_charge_memcg+0x7fb/0x920 mm/memcontrol.c:2826
try_charge mm/memcontrol.c:2837 [inline]
charge_memcg+0x42/0x160 mm/memcontrol.c:6976
__mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:6997
mem_cgroup_charge include/linux/memcontrol.h:679 [inline]
__filemap_add_folio+0x428/0x750 mm/filemap.c:860
filemap_add_folio+0x47/0x190 mm/filemap.c:942
page_cache_ra_unbounded+0xf8/0x240 mm/readahead.c:250
do_sync_mmap_readahead+0x137/0x270
filemap_fault+0x1d4/0x6b0 mm/filemap.c:3297
__do_fault+0x38/0x100 mm/memory.c:4198
do_read_fault mm/memory.c:4547 [inline]
do_fault mm/memory.c:4670 [inline]
do_pte_missing mm/memory.c:3664 [inline]
handle_pte_fault mm/memory.c:4939 [inline]
__handle_mm_fault mm/memory.c:5079 [inline]
handle_mm_fault+0x779/0x1550 mm/memory.c:5233
faultin_page mm/gup.c:959 [inline]
__get_user_pages+0x41d/0x6a0 mm/gup.c:1258
populate_vma_page_range+0xe0/0x130 mm/gup.c:1649
__mm_populate+0xea/0x190 mm/gup.c:1758
mm_populate include/linux/mm.h:3213 [inline]
vm_mmap_pgoff+0x122/0x1a0 mm/util.c:548
ksys_mmap_pgoff+0x194/0x1f0 mm/mmap.c:1409
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f418747c859
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f418810e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f418759bf80 RCX: 00007f418747c859
RDX: 000000000000000a RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007f41874d8ad0 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f418759bf80 R15: 00007ffea9796278