cred 156KB 288KB anon_vma_chain 128KB 169KB anon_vma 168KB 278KB pid 220KB 385KB Acpi-Operand 207KB 312KB Acpi-ParseExt 126KB 126KB Acpi-Parse 51KB 90KB Acpi-State 59KB 94KB Acpi-Namespace 56KB 56KB shared_policy_node 16KB 16KB numa_policy 15KB 15KB perf_event 31KB 31KB trace_event_file 532KB 532KB ftrace_event_field 1012KB 1012KB pool_workqueue 2054KB 2224KB task_group 61KB 61KB maple_node 527KB 1424KB mm_struct 572KB 735KB vmap_area 337KB 1136KB debug_objects_cache 3194KB 3976KB page->ptl 87KB 126KB kmalloc-cg-8k 2000KB 2432KB kmalloc-cg-4k 14232KB 19520KB kmalloc-cg-2k 9068KB 12768KB kmalloc-cg-1k 2786KB 4640KB kmalloc-cg-512 1023KB 2016KB kmalloc-cg-256 465KB 640KB kmalloc-cg-128 255KB 400KB kmalloc-cg-64 84KB 128KB kmalloc-cg-32 83KB 164KB kmalloc-cg-16 33KB 60KB kmalloc-cg-8 32KB 48KB kmalloc-cg-192 74KB 108KB kmalloc-cg-96 98KB 108KB kmalloc-8k 6656KB 7872KB kmalloc-4k 31016KB 31080KB kmalloc-2k 12436KB 14240KB kmalloc-1k 6186KB 9696KB kmalloc-512 8405KB 11904KB kmalloc-256 5480KB 5484KB kmalloc-128 1011KB 1752KB kmalloc-64 3531KB 5100KB kmalloc-32 1698KB 3140KB kmalloc-16 504KB 544KB kmalloc-8 423KB 612KB kmalloc-192 1730KB 2608KB kmalloc-96 1508KB 2096KB kmem_cache_node 216KB 220KB kmem_cache 187KB 187KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 1 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: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 vpanic+0x20d/0x630 kernel/panic.c:490 panic+0xd1/0xd1 kernel/panic.c:627 out_of_memory.cold+0xa2/0x170 mm/oom_kill.c:1182 __alloc_pages_may_oom mm/page_alloc.c:4122 [inline] __alloc_pages_slowpath mm/page_alloc.c:4927 [inline] __alloc_frozen_pages_noprof+0x1d30/0x2410 mm/page_alloc.c:5253 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2486 folio_alloc_mpol_noprof+0x36/0x340 mm/mempolicy.c:2505 __read_swap_cache_async+0x20a/0x610 mm/swap_state.c:439 swap_cluster_readahead+0x414/0x770 mm/swap_state.c:645 swapin_readahead+0x14b/0x12e0 mm/swap_state.c:820 do_swap_page+0x9ba/0x6810 mm/memory.c:4756 handle_pte_fault mm/memory.c:6279 [inline] __handle_mm_fault+0x18b9/0x2b50 mm/memory.c:6414 handle_mm_fault+0x36d/0xa20 mm/memory.c:6583 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+0x9a/0x230 include/linux/rseq_entry.h:503 Code: e8 4b 7c c8 ff 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 4e 01 00 00 44 8b 7d 00 <44> 89 3b e8 1e 7c c8 ff 44 89 7b 04 e8 15 7c c8 ff 44 89 73 14 e8 RSP: 0000:ffffc90000137e28 EFLAGS: 00050246 RAX: 0000000000000000 RBX: 00007f6417601ae0 RCX: ffffffff823e2790 RDX: 1ffff92000026fd0 RSI: ffffffff823e2795 RDI: ffff888040a98000 RBP: ffffc90000137e80 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90000137ea0 R13: ffff888040a98000 R14: 0000000000000000 R15: 0000000000000000 rseq_update_usr include/linux/rseq_entry.h:536 [inline] rseq_slowpath_update_usr kernel/rseq.c:305 [inline] __rseq_handle_slowpath+0x251/0x3c0 kernel/rseq.c:331 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: 0033:0x7f64178bb2c0 Code: Unable to access opcode bytes at 0x7f64178bb296. RSP: 002b:00007ffef4cf77f8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 000000000000160c RCX: 00007f64177bfa67 RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffffffffffff RBP: 00007f6417950e89 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000180 R11: 0000000000000202 R12: 00007f641796b490 R13: 00007ffef4cf780c R14: 00007f64179ab000 R15: 000055c9a3e71d98 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess): 0: e8 4b 7c c8 ff call 0xffc87c50 5: 48 89 ea mov %rbp,%rdx 8: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax f: fc ff df 12: 48 c1 ea 03 shr $0x3,%rdx 16: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 1a: 84 c0 test %al,%al 1c: 74 08 je 0x26 1e: 3c 03 cmp $0x3,%al 20: 0f 8e 4e 01 00 00 jle 0x174 26: 44 8b 7d 00 mov 0x0(%rbp),%r15d * 2a: 44 89 3b mov %r15d,(%rbx) <-- trapping instruction 2d: e8 1e 7c c8 ff call 0xffc87c50 32: 44 89 7b 04 mov %r15d,0x4(%rbx) 36: e8 15 7c c8 ff call 0xffc87c50 3b: 44 89 73 14 mov %r14d,0x14(%rbx) 3f: e8 .byte 0xe8