BUG: MAX_STACK_TRACE_ENTRIES too low! turning off the locking correctness validator. CPU: 0 PID: 27106 Comm: syz-executor407 Not tainted 5.3.0-rc1+ #49 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d8/0x2f8 lib/dump_stack.c:113 save_trace kernel/locking/lockdep.c:473 [inline] mark_lock+0x52e/0x1850 kernel/locking/lockdep.c:3583 mark_usage kernel/locking/lockdep.c:3509 [inline] __lock_acquire+0x737/0x4750 kernel/locking/lockdep.c:3834 lock_acquire+0x158/0x250 kernel/locking/lockdep.c:4413 flush_workqueue+0x17e/0x13f0 kernel/workqueue.c:2774 drain_workqueue+0xb9/0x500 kernel/workqueue.c:2939 destroy_workqueue+0x2b/0xb00 kernel/workqueue.c:4320 ucma_close+0x2a4/0x2c0 drivers/infiniband/core/ucma.c:1771 __fput+0x2e4/0x740 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:313 task_work_run+0x17e/0x1b0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x64c/0x2340 kernel/exit.c:878 do_group_exit+0x15c/0x2b0 kernel/exit.c:982 __do_sys_exit_group+0x17/0x20 kernel/exit.c:993 __se_sys_exit_group+0x14/0x20 kernel/exit.c:991 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:991 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x43fd98 Code: Bad RIP value. RSP: 002b:00007ffec4443e48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043fd98 RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 RBP: 00000000004bf630 R08: 00000000000000e7 R09: ffffffffffffffd0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000