INFO: task syz-executor.1:3645 blocked for more than 143 seconds.
Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25416 pid: 3645 ppid: 1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5183 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6495
schedule+0xda/0x1b0 kernel/sched/core.c:6571
rwsem_down_read_slowpath+0x59f/0xb10 kernel/locking/rwsem.c:1087
__down_read_common kernel/locking/rwsem.c:1252 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0xe2/0x450 kernel/locking/rwsem.c:1501
inode_lock_shared include/linux/fs.h:766 [inline]
lookup_slow fs/namei.c:1701 [inline]
walk_component+0x332/0x5a0 fs/namei.c:1993
link_path_walk.part.0+0x74e/0xe20 fs/namei.c:2320
link_path_walk fs/namei.c:2245 [inline]
path_openat+0x262/0x28f0 fs/namei.c:3687
do_filp_open+0x1b6/0x400 fs/namei.c:3718
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe0a1c8a0e8
RSP: 002b:00007ffccfe51c70 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000850 RCX: 00007fe0a1c8a0e8
RDX: 0000000000090800 RSI: 00007fe0a1ce469a RDI: 00000000ffffff9c
RBP: 00007ffccfe51d3c R08: 0000000000090800 R09: 00007fe0a1ce469a
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000e6c29 R14: 0000000000000014 R15: 00007ffccfe51da0
INFO: task syz-executor.1:16463 blocked for more than 144 seconds.
Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28032 pid:16463 ppid: 3645 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5183 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6495
schedule+0xda/0x1b0 kernel/sched/core.c:6571
rwsem_down_write_slowpath+0x59c/0x11e0 kernel/locking/rwsem.c:1182
__down_write_common kernel/locking/rwsem.c:1297 [inline]
__down_write_common kernel/locking/rwsem.c:1294 [inline]
__down_write kernel/locking/rwsem.c:1306 [inline]
down_write_nested+0x139/0x150 kernel/locking/rwsem.c:1663
inode_lock_nested include/linux/fs.h:791 [inline]
fuse_reverse_inval_entry+0x51/0x540 fs/fuse/dir.c:1167
fuse_notify_delete fs/fuse/dev.c:1548 [inline]
fuse_notify fs/fuse/dev.c:1797 [inline]
fuse_dev_do_write+0x1aab/0x2c00 fs/fuse/dev.c:1872
fuse_dev_write+0x150/0x1e0 fs/fuse/dev.c:1956
call_write_iter include/linux/fs.h:2190 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x9e9/0xdd0 fs/read_write.c:584
ksys_write+0x127/0x250 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe0a1c8a5a9
RSP: 002b:00007fe0a2d2d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe0a1dabf80 RCX: 00007fe0a1c8a5a9
RDX: 000000000000002c RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007fe0a1ce5580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccfe51a7f R14: 00007fe0a2d2d300 R15: 0000000000022000
INFO: task syz-executor.1:16476 blocked for more than 144 seconds.
Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27504 pid:16476 ppid: 3645 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5183 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6495
schedule+0xda/0x1b0 kernel/sched/core.c:6571
request_wait_answer+0x46d/0x850 fs/fuse/dev.c:407
__fuse_request_send fs/fuse/dev.c:426 [inline]
fuse_simple_request+0x71d/0xe50 fs/fuse/dev.c:511
fuse_lookup_name+0x280/0x630 fs/fuse/dir.c:392
fuse_lookup.part.0+0xdf/0x390 fs/fuse/dir.c:433
fuse_lookup+0x70/0x90 fs/fuse/dir.c:429
__lookup_slow+0x24c/0x460 fs/namei.c:1685
lookup_slow fs/namei.c:1702 [inline]
walk_component+0x33f/0x5a0 fs/namei.c:1993
link_path_walk.part.0+0x74e/0xe20 fs/namei.c:2320
link_path_walk fs/namei.c:2245 [inline]
path_openat+0x262/0x28f0 fs/namei.c:3687
do_filp_open+0x1b6/0x400 fs/namei.c:3718
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe0a1c8a5a9
RSP: 002b:00007fe0a2d0c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe0a1dac050 RCX: 00007fe0a1c8a5a9
RDX: 0000000000000000 RSI: 0000000020000ac0 RDI: ffffffffffffff9c
RBP: 00007fe0a1ce5580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccfe51a7f R14: 00007fe0a2d0c300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x206/0x250 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc18/0xf50 kernel/hung_task.c:369
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3697 Comm: kworker/0:4 Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:30 [inline]
RIP: 0010:__orc_find+0x83/0xf0 arch/x86/kernel/unwind_orc.c:52
Code: 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 48 48 63 03 <48> 01 d8 48 39 c1 73 b0 4c 8d 63 fc 49 39 ec 73 b3 4d 29 ee 49 c1
RSP: 0018:ffffc9000427f518 EFLAGS: 00000046
RAX: fffffffff3d0c2a4 RBX: ffffffff8df55a30 RCX: ffffffff81c61d34
RDX: 0000000000000000 RSI: ffffffff8e6a9774 RDI: ffffffff8df55a30
RBP: ffffffff8df55a30 R08: ffffffff8bdff160 R09: ffffc9000427f604
R10: fffff5200084fec5 R11: 000000000008c07c R12: ffffffff8df55a30
R13: ffffffff8df55a30 R14: ffffffff8df55a30 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c01f42cec0 CR3: 000000000bc8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
orc_find arch/x86/kernel/unwind_orc.c:178 [inline]
unwind_next_frame+0x2a3/0x1cc0 arch/x86/kernel/unwind_orc.c:448
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
save_stack+0x151/0x1e0 mm/page_owner.c:127
__set_page_owner+0x2e/0x50 mm/page_owner.c:192
prep_new_page mm/page_alloc.c:2532 [inline]
get_page_from_freelist+0x109b/0x2ce0 mm/page_alloc.c:4283
__alloc_pages+0x1c7/0x510 mm/page_alloc.c:5549
__alloc_pages_node include/linux/gfp.h:243 [inline]
kmem_getpages mm/slab.c:1363 [inline]
cache_grow_begin+0x75/0x360 mm/slab.c:2569
cache_alloc_refill+0x27f/0x380 mm/slab.c:2942
____cache_alloc mm/slab.c:3018 [inline]
____cache_alloc mm/slab.c:3001 [inline]
slab_alloc_node mm/slab.c:3220 [inline]
kmem_cache_alloc_node_trace+0x50a/0x570 mm/slab.c:3601
__do_kmalloc_node mm/slab.c:3623 [inline]
__kmalloc_node_track_caller+0x38/0x60 mm/slab.c:3638
kmalloc_reserve net/core/skbuff.c:437 [inline]
__alloc_skb+0xd9/0x2f0 net/core/skbuff.c:509
alloc_skb include/linux/skbuff.h:1265 [inline]
nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:742 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:799 [inline]
nsim_dev_trap_report_work+0x2ad/0xc50 drivers/net/netdevsim/dev.c:844
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306