cache_from_obj: Wrong slab cache. task_struct but object is from names_cache
WARNING: CPU: 0 PID: 9 at mm/slab.h:375 cache_from_obj mm/slab.h:373 [inline]
WARNING: CPU: 0 PID: 9 at mm/slab.h:375 cache_from_obj mm/slab.h:352 [inline]
WARNING: CPU: 0 PID: 9 at mm/slab.h:375 kmem_cache_free.cold+0x1c/0x23 mm/slab.c:3756
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.1.0-rc2+ #141
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:cache_from_obj mm/slab.h:375 [inline]
RIP: 0010:cache_from_obj mm/slab.h:352 [inline]
RIP: 0010:kmem_cache_free.cold+0x1c/0x23 mm/slab.c:3756
Code: e8 35 57 60 05 44 8b 6d c4 e9 04 a6 ff ff 48 8b 48 58 48 c7 c6 c0 32 74 87 48 c7 c7 70 16 5a 88 49 8b 54 24 58 e8 24 88 b2 ff <0f> 0b e9 89 df ff ff 49 8b 4f 58 48 c7 c6 c0 32 74 87 48 c7 c7 70
RSP: 0018:ffff8880aa277bf8 EFLAGS: 00010286
RAX: 000000000000004c RBX: ffff88806b786700 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815ae3f6 RDI: ffffed101544ef71
RBP: ffff8880aa277c18 R08: 000000000000004c R09: ffffed1015d05011
R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffff88821bc407c0
R13: ffff88806b787a48 R14: ffff888097ea4190 R15: ffff8880aa277d28
 free_task_struct kernel/fork.c:162 [inline]
 free_task+0xdd/0x120 kernel/fork.c:457
 __put_task_struct+0x1fd/0x4e0 kernel/fork.c:730
 put_task_struct include/linux/sched/task.h:98 [inline]
 delayed_put_task_struct+0x1ec/0x340 kernel/exit.c:181
 __rcu_reclaim kernel/rcu/rcu.h:227 [inline]
 rcu_do_batch kernel/rcu/tree.c:2475 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:2788 [inline]
 rcu_core+0x928/0x1390 kernel/rcu/tree.c:2769
 __do_softirq+0x266/0x95a kernel/softirq.c:293
 run_ksoftirqd kernel/softirq.c:655 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:647
 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..