cred 116KB 336KB anon_vma_chain 102KB 232KB anon_vma 117KB 334KB pid 135KB 390KB Acpi-Operand 201KB 312KB Acpi-ParseExt 21KB 31KB Acpi-Parse 19KB 27KB Acpi-State 16KB 31KB Acpi-Namespace 35KB 48KB shared_policy_node 7KB 8KB numa_policy 9KB 15KB perf_event 15KB 31KB trace_event_file 540KB 540KB ftrace_event_field 1020KB 1023KB pool_workqueue 1892KB 2016KB task_group 85KB 108KB maple_node 444KB 1264KB mm_struct 101KB 551KB vmap_area 268KB 1037KB debug_objects_cache 2432KB 5916KB page->ptl 26KB 114KB kmalloc-cg-8k 1264KB 1440KB kmalloc-cg-4k 10848KB 12608KB kmalloc-cg-2k 7176KB 8288KB kmalloc-cg-1k 2076KB 2848KB kmalloc-cg-512 949KB 1472KB kmalloc-cg-256 361KB 424KB kmalloc-cg-128 224KB 264KB kmalloc-cg-64 46KB 68KB kmalloc-cg-32 38KB 172KB kmalloc-cg-16 5KB 28KB kmalloc-cg-8 16KB 32KB kmalloc-cg-192 52KB 76KB kmalloc-cg-96 41KB 76KB kmalloc-8k 4960KB 5600KB kmalloc-4k 37528KB 37664KB kmalloc-2k 11576KB 13248KB kmalloc-1k 10372KB 11404KB kmalloc-512 10032KB 11184KB kmalloc-256 4971KB 4976KB kmalloc-128 1505KB 1696KB kmalloc-64 2852KB 3272KB kmalloc-32 1410KB 2932KB kmalloc-16 407KB 464KB kmalloc-8 377KB 456KB kmalloc-192 1338KB 1588KB kmalloc-96 1471KB 1728KB kmem_cache_node 213KB 220KB kmem_cache 176KB 218KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 3 UID: 0 PID: 5341 Comm: udevd 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: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 vpanic+0x552/0x970 kernel/panic.c:650 panic+0xd1/0xe0 kernel/panic.c:787 out_of_memory.cold+0xa2/0x170 mm/oom_kill.c:1182 __alloc_pages_may_oom mm/page_alloc.c:4139 [inline] __alloc_pages_slowpath mm/page_alloc.c:4937 [inline] __alloc_frozen_pages_noprof+0x233d/0x2ba0 mm/page_alloc.c:5263 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2484 folio_alloc_mpol_noprof+0x36/0x340 mm/mempolicy.c:2503 swap_cache_alloc_folio+0x1a8/0x300 mm/swap_state.c:571 swap_cluster_readahead+0x53b/0x770 mm/swap_state.c:768 swapin_readahead+0x160/0x12c0 mm/swap_state.c:924 do_swap_page+0xb2e/0x68e0 mm/memory.c:4801 handle_pte_fault mm/memory.c:6319 [inline] __handle_mm_fault+0x18c1/0x2b60 mm/memory.c:6454 handle_mm_fault+0x36d/0xa20 mm/memory.c:6623 do_user_addr_fault+0x74c/0x12f0 arch/x86/mm/fault.c:1385 handle_page_fault arch/x86/mm/fault.c:1474 [inline] exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0010:rseq_set_ids_get_csaddr+0x88/0x210 include/linux/rseq_entry.h:503 Code: 0f 47 e8 0f 01 cb 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 42 01 00 00 44 8b 3b <44> 89 7d 00 e8 df 03 c8 ff 44 89 7d 04 e8 d6 03 c8 ff 44 89 75 14 RSP: 0000:ffffc900039e7e28 EFLAGS: 00050246 RAX: 0000000000000000 RBX: ffffc900039e7e80 RCX: ffffc900039e7ea0 RDX: 1ffff9200073cfd0 RSI: ffffffff82400d20 RDI: ffff888026fc15d8 RBP: 00007f3b2e821680 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888026fc0000 R13: ffffc900039e7ea0 R14: 0000000000000000 R15: 0000000000000000 rseq_update_usr include/linux/rseq_entry.h:536 [inline] rseq_slowpath_update_usr kernel/rseq.c:306 [inline] __rseq_handle_slowpath+0x251/0x3c0 kernel/rseq.c:332 rseq_handle_slowpath include/linux/rseq.h:17 [inline] resume_user_mode_work include/linux/resume_user_mode.h:62 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop kernel/entry/common.c:98 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline] irqentry_exit+0x24c/0x670 kernel/entry/common.c:219 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x562094cd47f2 Code: Unable to access opcode bytes at 0x562094cd47c8. RSP: 002b:00007ffe8adc8920 EFLAGS: 00010202 RAX: 0000562094d045e0 RBX: 0000000000000013 RCX: 0000000000000004 RDX: 0000000000001926 RSI: 0000000000000013 RDI: 00005620a76658e0 RBP: 0000000000001926 R08: c9018c7e39807cb3 R09: 00007ffe8adc8940 R10: 0000000000000000 R11: c9f7375e8278e6b7 R12: 0000000000000001 R13: 00005620a76658e0 R14: 0000562094cea008 R15: 0000562094d045e0 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess): 0: 0f 47 e8 cmova %eax,%ebp 3: 0f 01 cb stac 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 89 da mov %rbx,%rdx 13: 48 c1 ea 03 shr $0x3,%rdx 17: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 1b: 84 c0 test %al,%al 1d: 74 08 je 0x27 1f: 3c 03 cmp $0x3,%al 21: 0f 8e 42 01 00 00 jle 0x169 27: 44 8b 3b mov (%rbx),%r15d * 2a: 44 89 7d 00 mov %r15d,0x0(%rbp) <-- trapping instruction 2e: e8 df 03 c8 ff call 0xffc80412 33: 44 89 7d 04 mov %r15d,0x4(%rbp) 37: e8 d6 03 c8 ff call 0xffc80412 3c: 44 89 75 14 mov %r14d,0x14(%rbp)