INFO: task syz.9.5040:27964 blocked for more than 144 seconds.
Not tainted 6.13.0-rc3-syzkaller-00193-ge9b8ffafd20a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.5040 state:D stack:24728 pid:27964 tgid:27957 ppid:26792 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
i_mmap_lock_read include/linux/fs.h:529 [inline]
rmap_walk_file+0x69c/0x780 mm/rmap.c:2694
remove_migration_ptes mm/migrate.c:373 [inline]
unmap_and_move_huge_page mm/migrate.c:1526 [inline]
migrate_hugetlbs mm/migrate.c:1648 [inline]
migrate_pages+0xd26/0x3380 mm/migrate.c:2046
do_mbind mm/mempolicy.c:1394 [inline]
kernel_mbind mm/mempolicy.c:1537 [inline]
__do_sys_mbind mm/mempolicy.c:1611 [inline]
__se_sys_mbind+0x145b/0x18d0 mm/mempolicy.c:1607
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f87ac985d29
RSP: 002b:00007f87ad6f4038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 00007f87acb76080 RCX: 00007f87ac985d29
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020001000
RBP: 00007f87aca01aa8 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f87acb76080 R15: 00007ffe338d0e58
INFO: task syz.9.5040:27966 blocked for more than 145 seconds.
Not tainted 6.13.0-rc3-syzkaller-00193-ge9b8ffafd20a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.5040 state:D stack:26768 pid:27966 tgid:27957 ppid:26792 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
io_schedule+0x8d/0x110 kernel/sched/core.c:7681
folio_wait_bit_common+0x839/0xee0 mm/filemap.c:1308
__folio_lock mm/filemap.c:1646 [inline]
folio_lock include/linux/pagemap.h:1151 [inline]
__filemap_get_folio+0x14c/0x940 mm/filemap.c:1899
filemap_lock_folio include/linux/pagemap.h:788 [inline]
filemap_lock_hugetlb_folio include/linux/hugetlb.h:789 [inline]
hugetlbfs_zero_partial_page+0xb0/0x590 fs/hugetlbfs/inode.c:661
hugetlbfs_punch_hole fs/hugetlbfs/inode.c:715 [inline]
hugetlbfs_fallocate+0xbdd/0x11a0 fs/hugetlbfs/inode.c:748
vfs_fallocate+0x569/0x6e0 fs/open.c:327
madvise_remove mm/madvise.c:1020 [inline]
madvise_vma_behavior mm/madvise.c:1255 [inline]
madvise_walk_vmas mm/madvise.c:1497 [inline]
do_madvise+0x23c1/0x4d10 mm/madvise.c:1684
__do_sys_madvise mm/madvise.c:1700 [inline]
__se_sys_madvise mm/madvise.c:1698 [inline]
__x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1698
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f87ac985d29
RSP: 002b:00007f87ad6d3038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f87acb76160 RCX: 00007f87ac985d29
RDX: 0000000000000009 RSI: 0000000000600002 RDI: 0000000020000000
RBP: 00007f87aca01aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f87acb76160 R15: 00007ffe338d0e58
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
4 locks held by syslogd/5178:
#0: ffff8880b873e758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
#1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2361 [inline]
#1: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: bpf_trace_run4+0x244/0x590 kernel/trace/bpf_trace.c:2405
#2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: filemap_get_entry+0x123/0x3b0 mm/filemap.c:1838
#3: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#3: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: page_ref_add_unless include/linux/page_ref.h:235 [inline]
#3: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: folio_ref_add_unless include/linux/page_ref.h:248 [inline]
#3: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: folio_try_get+0x1e/0x350 include/linux/page_ref.h:264
2 locks held by getty/5584:
#0: ffff88814d7310a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000330b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz.9.5040/27964:
#0: ffff8880598a4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_read include/linux/fs.h:529 [inline]
#0: ffff8880598a4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: rmap_walk_file+0x69c/0x780 mm/rmap.c:2694
3 locks held by syz.9.5040/27966:
#0: ffff888021ea0420 (sb_writers#17){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#0: ffff888021ea0420 (sb_writers#17){.+.+}-{0:0}, at: vfs_fallocate+0x4fe/0x6e0 fs/open.c:326
#1: ffff8880598a4148 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff8880598a4148 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:690 [inline]
#1: ffff8880598a4148 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: hugetlbfs_fallocate+0x407/0x11a0 fs/hugetlbfs/inode.c:748
#2: ffff8880598a4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_write include/linux/fs.h:509 [inline]
#2: ffff8880598a4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:698 [inline]
#2: ffff8880598a4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_fallocate+0x4cd/0x11a0 fs/hugetlbfs/inode.c:748
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller-00193-ge9b8ffafd20a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 24338 Comm: kworker/u8:1 Not tainted 6.13.0-rc3-syzkaller-00193-ge9b8ffafd20a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: krdsd rds_connect_worker
RIP: 0010:_compound_head include/linux/page-flags.h:244 [inline]
RIP: 0010:virt_to_folio include/linux/mm.h:1296 [inline]
RIP: 0010:kfree+0x8b/0x430 mm/slub.c:4753
Code: fd 11 0f 82 6e 01 00 00 4c 89 ef e8 2f 94 55 ff 49 89 c7 49 c1 ef 06 49 83 e7 c0 48 b9 00 00 00 00 00 ea ff ff 49 8b 44 0f 08 01 0f 85 38 03 00 00 49 01 cf 0f 1f 44 00 00 41 0f b6 47 33 c1
RSP: 0018:ffffc90005387768 EFLAGS: 00000202
RAX: ffff88801ac41780 RBX: ffffffff84f28fbf RCX: ffffea0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900053878f8 R08: ffffffff814d403c R09: 1ffffffff284e146
R10: dffffc0000000000 R11: fffffbfff284e147 R12: 0000000000000246
R13: ffff888071011a00 R14: ffff888071011a00 R15: 0000000001c40440
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa5a3f48178 CR3: 000000000e736000 CR4: 00000000003526f0
Call Trace:
ref_tracker_free+0x4ef/0x7e0 lib/ref_tracker.c:272
__netns_tracker_free include/net/net_namespace.h:358 [inline]
__sk_destruct+0x500/0x5f0 net/core/sock.c:2291
inet_release+0x17d/0x200 net/ipv4/af_inet.c:435
__sock_release net/socket.c:640 [inline]
sock_release net/socket.c:668 [inline]
__sock_create+0x811/0xa30 net/socket.c:1594
rds_tcp_conn_path_connect+0x2bb/0xbc0
rds_connect_worker+0x1dd/0x2a0 net/rds/threads.c:176
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244