INFO: task syz-executor974:5073 blocked for more than 143 seconds.
Not tainted 6.8.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor974 state:D stack:26800 pid:5073 tgid:5073 ppid:5070 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1ae/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:849 [inline]
blkdev_fallocate+0x22a/0x580 block/fops.c:800
vfs_fallocate+0x566/0x6c0 fs/open.c:328
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:359 [inline]
__se_sys_fallocate fs/open.c:357 [inline]
__x64_sys_fallocate+0xbd/0x110 fs/open.c:357
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f68c0ca9b29
RSP: 002b:00007ffcf0fe8278 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f68c0ca9b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0000400001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcf0fe8498 R14: 00007ffcf0fe82a0 R15: 00007ffcf0fe8290
INFO: task syz-executor974:5075 blocked for more than 143 seconds.
Not tainted 6.8.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor974 state:D stack:26968 pid:5075 tgid:5075 ppid:5072 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1ae/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:849 [inline]
blkdev_fallocate+0x22a/0x580 block/fops.c:800
vfs_fallocate+0x566/0x6c0 fs/open.c:328
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:359 [inline]
__se_sys_fallocate fs/open.c:357 [inline]
__x64_sys_fallocate+0xbd/0x110 fs/open.c:357
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f68c0ca9b29
RSP: 002b:00007ffcf0fe8278 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f68c0ca9b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0000400001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcf0fe8498 R14: 00007ffcf0fe82a0 R15: 00007ffcf0fe8290
INFO: task syz-executor974:5077 blocked for more than 143 seconds.
Not tainted 6.8.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor974 state:D stack:26128 pid:5077 tgid:5077 ppid:5074 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1ae/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:849 [inline]
blkdev_fallocate+0x22a/0x580 block/fops.c:800
vfs_fallocate+0x566/0x6c0 fs/open.c:328
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:359 [inline]
__se_sys_fallocate fs/open.c:357 [inline]
__x64_sys_fallocate+0xbd/0x110 fs/open.c:357
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f68c0ca9b29
RSP: 002b:00007ffcf0fe8278 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f68c0ca9b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0000400001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcf0fe8498 R14: 00007ffcf0fe82a0 R15: 00007ffcf0fe8290
INFO: task syz-executor974:5078 blocked for more than 144 seconds.
Not tainted 6.8.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor974 state:D stack:26352 pid:5078 tgid:5078 ppid:5076 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1ae/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:849 [inline]
blkdev_fallocate+0x22a/0x580 block/fops.c:800
vfs_fallocate+0x566/0x6c0 fs/open.c:328
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:359 [inline]
__se_sys_fallocate fs/open.c:357 [inline]
__x64_sys_fallocate+0xbd/0x110 fs/open.c:357
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f68c0ca9b29
RSP: 002b:00007ffcf0fe8278 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f68c0ca9b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0000400001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcf0fe8498 R14: 00007ffcf0fe82a0 R15: 00007ffcf0fe8290
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
1 lock held by klogd/4506:
2 locks held by getty/4819:
#0: ffff88802ff880a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor974/5071:
1 lock held by syz-executor974/5073:
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:849 [inline]
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x580 block/fops.c:800
1 lock held by syz-executor974/5075:
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:849 [inline]
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x580 block/fops.c:800
1 lock held by syz-executor974/5077:
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:849 [inline]
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x580 block/fops.c:800
1 lock held by syz-executor974/5078:
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:849 [inline]
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x580 block/fops.c:800
1 lock held by syz-executor974/5096:
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:849 [inline]
#0: ffff88801d1542c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x580 block/fops.c:800
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
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:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2f1/0x390 kernel/kthread.c:388
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5071 Comm: syz-executor974 Not tainted 6.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:42 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:235 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x8/0x90 kernel/kcov.c:311
Code: 0a 20 e9 8b bf de 09 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 0d c0 4c 70 7e 65 8b 05 c1 4c 70 7e a9 00 01 ff 00 74 10
RSP: 0018:ffffc900001f0778 EFLAGS: 00000246
RAX: ffffffff8132e55f RBX: 0000000000000000 RCX: 0000000000000002
RDX: 0000000080000101 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000004 R08: ffffffff8132e577 R09: 0000000000000000
R10: ffffc900001f0820 R11: fffff5200003e110 R12: 0000000000000002
R13: ffff8880112fbb80 R14: ffffc900001f0840 R15: ffffc900001f0820
FS: 0000555557388380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b994490680 CR3: 0000000028d64000 CR4: 0000000000350ef0
Call Trace:
get_stack_info+0x87/0x180 arch/x86/kernel/dumpstack_64.c:208
__unwind_start+0x485/0x7a0 arch/x86/kernel/unwind_orc.c:729
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x102/0x1b0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x117/0x1d0 kernel/stacktrace.c:122
save_stack+0xfa/0x1f0 mm/page_owner.c:129
__reset_page_owner+0x44/0x2d0 mm/page_owner.c:150
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1140 [inline]
free_unref_page_prepare+0x968/0xa90 mm/page_alloc.c:2346
free_unref_page+0x37/0x3f0 mm/page_alloc.c:2486
rcu_do_batch kernel/rcu/tree.c:2190 [inline]
rcu_core+0xd78/0x1810 kernel/rcu/tree.c:2465
__do_softirq+0x2bd/0x942 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu+0xf1/0x1c0 kernel/softirq.c:632
irq_exit_rcu+0x9/0x30 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x97/0xb0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:srso_safe_ret+0x0/0x20 arch/x86/lib/retpoline.S:208
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 b8 <48> 8d 64 24 08 c3 cc cc 0f ae e8 e8 f0 ff ff ff 0f 0b 66 2e 0f 1f
RSP: 0018:ffffc90004356f18 EFLAGS: 00000293
RAX: ffffffff814053d1 RBX: 0000000000000000 RCX: ffff8880112fbb80
RDX: 0000000000000000 RSI: ffffffff8b66ccda RDI: ffffffff8b66cbe8
RBP: 1ffff9200086ae00 R08: ffffffff81405265 R09: ffffc900043570f0
R10: 0000000000000003 R11: ffffffff818044c0 R12: ffffffff8ffcde70
R13: dffffc0000000000 R14: 1ffff9200086ae00 R15: ffffffff90a1b5d0
srso_return_thunk+0x5/0x5f arch/x86/lib/retpoline.S:222
unwind_next_frame+0x681/0x29e0 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x150/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:314 [inline]
__kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:340
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3813 [inline]
slab_alloc_node mm/slub.c:3860 [inline]
kmem_cache_alloc+0x16f/0x340 mm/slub.c:3867
mempool_alloc+0x199/0x5a0 mm/mempool.c:408
bio_alloc_bioset+0x26b/0x1400 block/bio.c:543
bio_alloc_clone block/bio.c:850 [inline]
bio_split+0xe6/0x430 block/bio.c:1638
bio_split_rw+0x8bc/0xab0 block/blk-merge.c:333
__bio_split_to_limits+0x620/0x9a0 block/blk-merge.c:366
blk_mq_submit_bio+0x70e/0x2460 block/blk-mq.c:2993
__submit_bio+0x23e/0x2f0 block/blk-core.c:608
__submit_bio_noacct_mq block/blk-core.c:687 [inline]
submit_bio_noacct_nocheck+0x9c3/0xc70 block/blk-core.c:716
blk_next_bio+0x113/0x150 block/bio.c:355
__blkdev_issue_zero_pages+0x1d7/0x320 block/blk-lib.c:180
blkdev_issue_zeroout+0x2a7/0x430 block/blk-lib.c:272
blkdev_fallocate+0x452/0x580 block/fops.c:813
vfs_fallocate+0x566/0x6c0 fs/open.c:328
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:359 [inline]
__se_sys_fallocate fs/open.c:357 [inline]
__x64_sys_fallocate+0xbd/0x110 fs/open.c:357
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f68c0ca9b29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcf0fe8278 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f68c0ca9b29
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0000400001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcf0fe8498 R14: 00007ffcf0fe82a0 R15: 00007ffcf0fe8290
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 5.039 msecs