kmalloc-96              1581KB       1980KB
kmem_cache_node          215KB        220KB
kmem_cache               178KB        226KB
Out of memory and no killable processes...
Kernel panic - not syncing: System is deadlocked on memory
CPU: 2 UID: 0 PID: 1 Comm: init Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 vpanic+0x552/0x970 kernel/panic.c:651
 panic+0xd1/0xe0 kernel/panic.c:788
 out_of_memory.cold+0xa2/0x170 mm/oom_kill.c:1166
 __alloc_pages_may_oom mm/page_alloc.c:4116 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4967 [inline]
 __alloc_frozen_pages_noprof+0x24c2/0x2dc0 mm/page_alloc.c:5317
 alloc_pages_mpol+0x1fb/0x540 mm/mempolicy.c:2490
 folio_alloc_mpol_noprof+0x36/0x260 mm/mempolicy.c:2509
 __swap_cache_alloc mm/swap_state.c:434 [inline]
 swap_cache_alloc_folio+0x3d7/0xc50 mm/swap_state.c:524
 swap_cache_read_folio+0x47/0x140 mm/swap_state.c:646
 swap_cluster_readahead+0x479/0x5f0 mm/swap_state.c:842
 swapin_readahead+0x159/0x1200 mm/swap_state.c:984
 do_swap_page+0xf98/0x5780 mm/memory.c:4836
 handle_pte_fault mm/memory.c:6382 [inline]
 __handle_mm_fault+0x192f/0x2a00 mm/memory.c:6517
 handle_mm_fault+0x37b/0xa30 mm/memory.c:6686
 do_user_addr_fault+0x74c/0x12f0 arch/x86/mm/fault.c:1394
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0010:rseq_set_ids_get_csaddr include/linux/rseq_entry.h:488 [inline]
RIP: 0010:rseq_update_usr include/linux/rseq_entry.h:536 [inline]
RIP: 0010:rseq_slowpath_update_usr kernel/rseq.c:303 [inline]
RIP: 0010:__rseq_handle_slowpath+0x248/0x680 kernel/rseq.c:329
Code: 0f 85 1f 04 00 00 44 0f b6 bb 44 16 00 00 bf 01 00 00 00 44 89 fe e8 37 13 c4 ff 41 80 ff 01 0f 86 33 01 00 00 e8 18 19 c4 ff <45> 8b 7d 00 e8 0f 19 c4 ff 48 8d bb 48 16 00 00 48 b8 00 00 00 00
RSP: 0000:ffffc90000137ea0 EFLAGS: 00050293
RAX: 0000000000000000 RBX: ffff88801dae8000 RCX: ffffffff8244a259
RDX: ffff88801dae8000 RSI: ffffffff8244a268 RDI: ffff88801dae8000
RBP: ffffc90000137ef0 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000002 R11: ffffffff81d4786c R12: ffffc90000137f48
R13: 00007fcf19838ac0 R14: 0000000000000000 R15: 0000000000000002
 rseq_handle_slowpath include/linux/rseq.h:22 [inline]
 resume_user_mode_work include/linux/resume_user_mode.h:62 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:70 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:101 [inline]
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline]
 irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline]
 irqentry_exit+0x460/0xa00 kernel/entry/common.c:165
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7fcf199d149a
Code: Unable to access opcode bytes at 0x7fcf199d1470.
RSP: 002b:00007ffe19af4900 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffffffffffffff88 RCX: 00007fcf19988407
RDX: 00007ffe19af4930 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffe19af4930 R11: 0000000000000202 R12: 00007fcf19ba2490
R13: 00007ffe19af496c R14: 00007fcf19be2000 R15: 000055606b39cd98
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess):
   0:	0f 85 1f 04 00 00    	jne    0x425
   6:	44 0f b6 bb 44 16 00 	movzbl 0x1644(%rbx),%r15d
   d:	00
   e:	bf 01 00 00 00       	mov    $0x1,%edi
  13:	44 89 fe             	mov    %r15d,%esi
  16:	e8 37 13 c4 ff       	call   0xffc41352
  1b:	41 80 ff 01          	cmp    $0x1,%r15b
  1f:	0f 86 33 01 00 00    	jbe    0x158
  25:	e8 18 19 c4 ff       	call   0xffc41942
* 2a:	45 8b 7d 00          	mov    0x0(%r13),%r15d <-- trapping instruction
  2e:	e8 0f 19 c4 ff       	call   0xffc41942
  33:	48 8d bb 48 16 00 00 	lea    0x1648(%rbx),%rdi
  3a:	48                   	rex.W
  3b:	b8 00 00 00 00       	mov    $0x0,%eax