INFO: task syz-executor.1:5095 can't die for more than 143 seconds.
task:syz-executor.1  state:R  running task     stack:24480 pid: 5095 ppid:  3629 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5000 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6309
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6474
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 vprintk_emit+0x1c9/0x4f0 kernel/printk/printk.c:2249
 vprintk+0x80/0x90 kernel/printk/printk_safe.c:50
 _printk+0xba/0xed kernel/printk/printk.c:2269
 show_free_areas.cold+0x50c/0x961 mm/page_alloc.c:6097
 show_mem+0x31/0x191 lib/show_mem.c:17
 warn_alloc_show_mem mm/page_alloc.c:4268 [inline]
 warn_alloc.cold+0x121/0x189 mm/page_alloc.c:4293
 __vmalloc_area_node mm/vmalloc.c:3003 [inline]
 __vmalloc_node_range+0xeb5/0x1130 mm/vmalloc.c:3157
 __vmalloc_node mm/vmalloc.c:3222 [inline]
 __vmalloc+0x69/0x80 mm/vmalloc.c:3236
 __snd_dma_alloc_pages+0x50/0x90 sound/core/memalloc.c:39
 snd_dma_alloc_dir_pages+0x14d/0x240 sound/core/memalloc.c:73
 do_alloc_pages+0xc2/0x180 sound/core/pcm_memory.c:48
 snd_pcm_lib_malloc_pages+0x3d8/0x990 sound/core/pcm_memory.c:424
 snd_pcm_hw_params+0x1408/0x1990 sound/core/pcm_native.c:732
 snd_pcm_kernel_ioctl+0x164/0x310 sound/core/pcm_native.c:3385
 snd_pcm_oss_change_params_locked+0x13c8/0x3bf0 sound/core/oss/pcm_oss.c:960
 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1104 [inline]
 snd_pcm_oss_make_ready+0xe7/0x1b0 sound/core/oss/pcm_oss.c:1163
 snd_pcm_oss_sync+0x1de/0x800 sound/core/oss/pcm_oss.c:1730
 snd_pcm_oss_release+0x276/0x300 sound/core/oss/pcm_oss.c:2584
 __fput+0x286/0x9f0 fs/file_table.c:311
 task_work_run+0xdd/0x1a0 kernel/task_work.c:164
 get_signal+0x21f8/0x28c0 kernel/signal.c:2630
 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb62351c059
RSP: 002b:00007fb622491168 EFLAGS: 00000246 ORIG_RAX: 000000000000010e
RAX: 0000000000000005 RBX: 00007fb62362ef60 RCX: 00007fb62351c059
RDX: 0000000000000000 RSI: 0000000020000d80 RDI: 0000000000000040
RBP: 00007fb62357608d R08: 0000000020000e80 R09: 0000000000000000
R10: 0000000020000e00 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd477b2e8f R14: 00007fb622491300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/26:
 #0: ffffffff8bb83a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6463
1 lock held by syslogd/2946:
 #0: ffff8880b9c39e58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:490
2 locks held by getty/3279:
 #0: ffff888022d46098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
1 lock held by syz-executor.1/5095:

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