INFO: task syz-executor263:5821 blocked for more than 143 seconds.
Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor263 state:D stack:27328 pid:5821 tgid:5821 ppid:5819 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1578
filemap_invalidate_lock include/linux/fs.h:863 [inline]
blkdev_fallocate+0x1da/0x390 block/fops.c:813
vfs_fallocate+0x459/0xf90 fs/open.c:327
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:356 [inline]
__se_sys_fallocate fs/open.c:354 [inline]
__x64_sys_fallocate+0xd5/0x150 fs/open.c:354
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f84446a3b29
RSP: 002b:00007ffc280be1a8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f84446a3b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc280be3c8 R14: 00007ffc280be1d0 R15: 00007ffc280be1c0
INFO: task syz-executor263:5823 blocked for more than 143 seconds.
Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor263 state:D stack:28368 pid:5823 tgid:5823 ppid:5820 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1578
filemap_invalidate_lock include/linux/fs.h:863 [inline]
blkdev_fallocate+0x1da/0x390 block/fops.c:813
vfs_fallocate+0x459/0xf90 fs/open.c:327
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:356 [inline]
__se_sys_fallocate fs/open.c:354 [inline]
__x64_sys_fallocate+0xd5/0x150 fs/open.c:354
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f84446a3b29
RSP: 002b:00007ffc280be1a8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f84446a3b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc280be3c8 R14: 00007ffc280be1d0 R15: 00007ffc280be1c0
INFO: task syz-executor263:5828 blocked for more than 143 seconds.
Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor263 state:D stack:28368 pid:5828 tgid:5828 ppid:5826 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1578
filemap_invalidate_lock include/linux/fs.h:863 [inline]
blkdev_fallocate+0x1da/0x390 block/fops.c:813
vfs_fallocate+0x459/0xf90 fs/open.c:327
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:356 [inline]
__se_sys_fallocate fs/open.c:354 [inline]
__x64_sys_fallocate+0xd5/0x150 fs/open.c:354
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f84446a3b29
RSP: 002b:00007ffc280be1a8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f84446a3b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc280be3c8 R14: 00007ffc280be1d0 R15: 00007ffc280be1c0
Showing all locks held in the system:
2 locks held by ksoftirqd/1/24:
1 lock held by khungtaskd/30:
#0: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6744
2 locks held by klogd/5178:
2 locks held by getty/5570:
#0: ffff8880364a20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
1 lock held by syz-executor263/5821:
#0: ffff888148d470c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline]
#0: ffff888148d470c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: blkdev_fallocate+0x1da/0x390 block/fops.c:813
1 lock held by syz-executor263/5823:
#0: ffff888148d470c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline]
#0: ffff888148d470c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: blkdev_fallocate+0x1da/0x390 block/fops.c:813
1 lock held by syz-executor263/5824:
1 lock held by syz-executor263/5828:
#0: ffff888148d470c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline]
#0: ffff888148d470c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: blkdev_fallocate+0x1da/0x390 block/fops.c:813
1 lock held by syz-executor263/5841:
#0: ffff888148d470c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline]
#0: ffff888148d470c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: blkdev_fallocate+0x1da/0x390 block/fops.c:813
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #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+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 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+0xf14/0x1240 kernel/hung_task.c:397
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1089 [inline]
RIP: 0010:debug_check_no_obj_freed+0x2eb/0x600 lib/debugobjects.c:1129
Code: b9 00 01 00 00 00 00 ad de 49 89 57 08 48 89 c7 48 89 08 4c 89 68 08 e8 b3 ca ff ff 4c 89 f8 48 89 c2 48 c1 ea 03 80 3c 1a 00 <0f> 84 24 ff ff ff 48 89 c7 48 89 44 24 10 e8 42 85 56 fd 48 8b 44
RSP: 0018:ffffc90000157b20 EFLAGS: 00000046
RAX: ffff8880402cdee0 RBX: dffffc0000000000 RCX: ffffffff8177273d
RDX: 1ffff11008059bdc RSI: ffff88807d8f2000 RDI: ffff8880835601d8
RBP: ffffc90000157c58 R08: 0000000000000001 R09: fffff5200002af52
R10: 0000000000000003 R11: 0000000000000001 R12: ffff88807d8f1000
R13: dead000000000122 R14: 0000000000000002 R15: ffff8880402cdee0
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe3b005d580 CR3: 000000007a7ec000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
free_pages_prepare mm/page_alloc.c:1134 [inline]
free_unref_page+0x276/0x1080 mm/page_alloc.c:2657
rcu_do_batch kernel/rcu/tree.c:2567 [inline]
rcu_core+0x79d/0x14d0 kernel/rcu/tree.c:2823
handle_softirqs+0x213/0x8f0 kernel/softirq.c:554
run_ksoftirqd kernel/softirq.c:943 [inline]
run_ksoftirqd+0x3a/0x60 kernel/softirq.c:935
smpboot_thread_fn+0x661/0xa30 kernel/smpboot.c:164
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.139 msecs