task_struct 4033KB 4658KB cred 180KB 348KB anon_vma_chain 174KB 271KB anon_vma 201KB 390KB pid 202KB 417KB Acpi-Operand 259KB 364KB Acpi-ParseExt 55KB 94KB Acpi-Parse 74KB 114KB Acpi-State 63KB 98KB Acpi-Namespace 56KB 56KB numa_policy 11KB 11KB perf_event 31KB 31KB trace_event_file 528KB 528KB ftrace_event_field 1000KB 1000KB pool_workqueue 1848KB 1888KB task_group 46KB 46KB maple_node 542KB 1448KB mm_struct 569KB 673KB vmap_area 333KB 962KB debug_objects_cache 1774KB 2219KB page->ptl 74KB 110KB kmalloc-cg-8k 1408KB 1408KB kmalloc-cg-4k 11424KB 12032KB kmalloc-cg-2k 7712KB 8352KB kmalloc-cg-1k 2176KB 2496KB kmalloc-cg-512 848KB 1152KB kmalloc-cg-256 400KB 400KB kmalloc-cg-128 221KB 236KB kmalloc-cg-64 118KB 124KB kmalloc-cg-32 70KB 168KB kmalloc-cg-16 16KB 20KB kmalloc-cg-8 28KB 28KB kmalloc-cg-192 75KB 88KB kmalloc-cg-96 80KB 92KB kmalloc-8k 4576KB 5184KB kmalloc-4k 23864KB 23904KB kmalloc-2k 11768KB 13184KB kmalloc-1k 10688KB 10720KB kmalloc-512 7630KB 8464KB kmalloc-256 4098KB 4104KB kmalloc-128 1204KB 1680KB kmalloc-64 7302KB 11240KB kmalloc-32 1341KB 1808KB kmalloc-16 395KB 416KB kmalloc-8 398KB 456KB kmalloc-192 1371KB 1484KB kmalloc-96 2669KB 3432KB kmem_cache_node 219KB 220KB kmem_cache 195KB 195KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 3 UID: 0 PID: 5741 Comm: sshd Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x3d/0x1f0 lib/dump_stack.c:120 vpanic+0x640/0x6f0 kernel/panic.c:489 panic+0xca/0xd0 kernel/panic.c:626 out_of_memory+0x16e4/0x1700 mm/oom_kill.c:1181 __alloc_pages_may_oom mm/page_alloc.c:4055 [inline] __alloc_pages_slowpath mm/page_alloc.c:4865 [inline] __alloc_frozen_pages_noprof+0x1dc6/0x2440 mm/page_alloc.c:5196 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416 folio_alloc_mpol_noprof+0x36/0xe0 mm/mempolicy.c:2435 __read_swap_cache_async+0x20a/0x500 mm/swap_state.c:440 swap_cluster_readahead+0x528/0x770 mm/swap_state.c:669 swapin_readahead+0x160/0x1180 mm/swap_state.c:826 do_swap_page+0x78b/0x64c0 mm/memory.c:4714 handle_pte_fault mm/memory.c:6237 [inline] __handle_mm_fault+0x17c6/0x2ad0 mm/memory.c:6366 handle_mm_fault+0x3fe/0xad0 mm/memory.c:6535 do_user_addr_fault+0x2e4/0xda0 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x64/0xc0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0010:do_sys_poll+0x765/0xdf0 fs/select.c:1016 Code: 12 e8 af 24 7f ff 48 89 d8 48 c1 e8 03 42 0f b6 14 28 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 07 06 00 00 0f b7 03 <66> 41 89 47 06 41 83 ee 01 49 83 c7 08 48 83 c3 08 e8 75 24 7f ff RSP: 0018:ffffc900035078f0 EFLAGS: 00050246 RAX: 0000000000000000 RBX: ffffc900035079d2 RCX: ffffffff823e73b2 RDX: 0000000000000000 RSI: ffffffff823e73c1 RDI: 0000000000000005 RBP: ffffc90003507e40 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 00000000ffffffff R12: ffffc900035079c0 R13: dffffc0000000000 R14: 0000000000000002 R15: 0000562bc61f71b0 __do_sys_ppoll fs/select.c:1111 [inline] __se_sys_ppoll fs/select.c:1091 [inline] __x64_sys_ppoll+0x254/0x2d0 fs/select.c:1091 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb7e72a7407 Code: Unable to access opcode bytes at 0x7fb7e72a73dd. RSP: 002b:00007ffd999647e0 EFLAGS: 00000202 ORIG_RAX: 000000000000010f RAX: ffffffffffffffda RBX: 00007fb7e7a15300 RCX: 00007fb7e72a7407 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000562bc61f71b0 RBP: 0000000000000002 R08: 0000000000000008 R09: 0000000000000000 R10: 00007ffd99964ab0 R11: 0000000000000202 R12: 0000000000000064 R13: 0000000000000000 R14: 0000562b873e2004 R15: 0000000000000002 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess): 0: 12 e8 adc %al,%ch 2: af scas %es:(%rdi),%eax 3: 24 7f and $0x7f,%al 5: ff 48 89 decl -0x77(%rax) 8: d8 48 c1 fmuls -0x3f(%rax) b: e8 03 42 0f b6 call 0xb60f4213 10: 14 28 adc $0x28,%al 12: 48 89 d8 mov %rbx,%rax 15: 83 e0 07 and $0x7,%eax 18: 83 c0 01 add $0x1,%eax 1b: 38 d0 cmp %dl,%al 1d: 7c 08 jl 0x27 1f: 84 d2 test %dl,%dl 21: 0f 85 07 06 00 00 jne 0x62e 27: 0f b7 03 movzwl (%rbx),%eax * 2a: 66 41 89 47 06 mov %ax,0x6(%r15) <-- trapping instruction 2f: 41 83 ee 01 sub $0x1,%r14d 33: 49 83 c7 08 add $0x8,%r15 37: 48 83 c3 08 add $0x8,%rbx 3b: e8 75 24 7f ff call 0xff7f24b5