task_struct 3629KB 4575KB cred 112KB 336KB anon_vma_chain 97KB 263KB anon_vma 114KB 318KB pid 141KB 390KB Acpi-Operand 201KB 312KB Acpi-ParseExt 21KB 43KB Acpi-Parse 13KB 23KB Acpi-State 16KB 31KB Acpi-Namespace 35KB 48KB numa_policy 7KB 8KB perf_event 15KB 31KB trace_event_file 540KB 540KB ftrace_event_field 1026KB 1027KB pool_workqueue 1867KB 2000KB task_group 68KB 92KB maple_node 456KB 1328KB mm_struct 107KB 428KB vmap_area 264KB 903KB debug_objects_cache 1859KB 4127KB page->ptl 28KB 94KB kmalloc-cg-8k 1248KB 1472KB kmalloc-cg-4k 10656KB 12832KB kmalloc-cg-2k 7120KB 8864KB kmalloc-cg-1k 2000KB 2880KB kmalloc-cg-512 878KB 1328KB kmalloc-cg-256 335KB 424KB kmalloc-cg-128 210KB 256KB kmalloc-cg-64 49KB 72KB kmalloc-cg-32 38KB 200KB kmalloc-cg-16 7KB 16KB kmalloc-cg-8 17KB 40KB kmalloc-cg-192 58KB 72KB kmalloc-cg-96 58KB 80KB kmalloc-8k 4896KB 5440KB kmalloc-4k 40912KB 41024KB kmalloc-2k 11252KB 13088KB kmalloc-1k 9090KB 9616KB kmalloc-512 9638KB 11008KB kmalloc-256 4711KB 4716KB kmalloc-128 1419KB 1652KB kmalloc-64 3057KB 3388KB kmalloc-32 1288KB 1840KB kmalloc-16 368KB 420KB kmalloc-8 372KB 444KB kmalloc-192 1242KB 1436KB kmalloc-96 1459KB 1656KB kmem_cache_node 213KB 220KB kmem_cache 177KB 226KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 2 UID: 0 PID: 5345 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 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:2490 folio_alloc_mpol_noprof+0x36/0x340 mm/mempolicy.c:2509 swap_cache_alloc_folio+0x1a8/0x300 mm/swap_state.c:570 swap_cluster_readahead+0x53b/0x770 mm/swap_state.c:767 swapin_readahead+0x160/0x12c0 mm/swap_state.c:923 do_swap_page+0xb2e/0x6900 mm/memory.c:4802 handle_pte_fault mm/memory.c:6320 [inline] __handle_mm_fault+0x18c7/0x2b60 mm/memory.c:6455 handle_mm_fault+0x36d/0xa20 mm/memory.c:6624 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:epoll_put_uevent include/linux/eventpoll.h:86 [inline] RIP: 0010:ep_send_events+0x3ba/0xbf0 fs/eventpoll.c:1826 Code: 84 c1 0f 85 63 07 00 00 48 8b 53 6c 48 8b 44 24 30 48 8b 4c 24 38 48 89 54 24 28 48 39 c8 48 0f 47 c1 0f 01 cb 48 89 44 24 18 <44> 89 30 e8 4e 37 67 ff 48 8b 44 24 18 48 8b 54 24 28 48 89 50 04 RSP: 0018:ffffc900035e7bb8 EFLAGS: 00050287 RAX: 00007fff5614e2f0 RBX: ffff88802aa2ca80 RCX: 00007ffffffff000 RDX: 0000000000000004 RSI: 0000000000000001 RDI: ffff88802aa2caec RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88802aa2ca98 R13: ffff88802aa2ca98 R14: 0000000000000001 R15: ffffc900035e7c20 ep_try_send_events fs/eventpoll.c:1909 [inline] ep_poll fs/eventpoll.c:1974 [inline] do_epoll_wait+0x4a4/0x1020 fs/eventpoll.c:2466 __do_sys_epoll_wait fs/eventpoll.c:2474 [inline] __se_sys_epoll_wait fs/eventpoll.c:2469 [inline] __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2469 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f52be2a7407 Code: Unable to access opcode bytes at 0x7f52be2a73dd. RSP: 002b:00007fff5614e190 EFLAGS: 00000202 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 00007f52bea3f880 RCX: 00007f52be2a7407 RDX: 0000000000000008 RSI: 00007fff5614e2f0 RDI: 000000000000000b RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000bb8 R11: 0000000000000202 R12: 0000000000000000 R13: 000056334907f100 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess): 0: 84 c1 test %al,%cl 2: 0f 85 63 07 00 00 jne 0x76b 8: 48 8b 53 6c mov 0x6c(%rbx),%rdx c: 48 8b 44 24 30 mov 0x30(%rsp),%rax 11: 48 8b 4c 24 38 mov 0x38(%rsp),%rcx 16: 48 89 54 24 28 mov %rdx,0x28(%rsp) 1b: 48 39 c8 cmp %rcx,%rax 1e: 48 0f 47 c1 cmova %rcx,%rax 22: 0f 01 cb stac 25: 48 89 44 24 18 mov %rax,0x18(%rsp) * 2a: 44 89 30 mov %r14d,(%rax) <-- trapping instruction 2d: e8 4e 37 67 ff call 0xff673780 32: 48 8b 44 24 18 mov 0x18(%rsp),%rax 37: 48 8b 54 24 28 mov 0x28(%rsp),%rdx 3c: 48 89 50 04 mov %rdx,0x4(%rax)