cred 140KB 320KB anon_vma_chain 139KB 161KB anon_vma 154KB 239KB pid 210KB 433KB Acpi-Operand 251KB 352KB Acpi-ParseExt 133KB 133KB Acpi-Parse 78KB 118KB Acpi-State 70KB 106KB Acpi-Namespace 56KB 56KB shared_policy_node 16KB 16KB numa_policy 15KB 15KB perf_event 93KB 93KB trace_event_file 528KB 528KB ftrace_event_field 996KB 996KB pool_workqueue 1996KB 2144KB task_group 46KB 46KB maple_node 514KB 1288KB mm_struct 443KB 532KB vmap_area 308KB 1081KB debug_objects_cache 4140KB 4543KB page->ptl 80KB 106KB kmalloc-cg-8k 2160KB 2336KB kmalloc-cg-4k 14736KB 18304KB kmalloc-cg-2k 10172KB 13440KB kmalloc-cg-1k 2220KB 3296KB kmalloc-cg-512 1261KB 1904KB kmalloc-cg-256 530KB 672KB kmalloc-cg-128 259KB 352KB kmalloc-cg-64 99KB 116KB kmalloc-cg-32 84KB 172KB kmalloc-cg-16 36KB 48KB kmalloc-cg-8 33KB 56KB kmalloc-cg-192 94KB 140KB kmalloc-cg-96 80KB 80KB kmalloc-8k 5520KB 6176KB kmalloc-4k 27840KB 27888KB kmalloc-2k 12152KB 13376KB kmalloc-1k 10854KB 11444KB kmalloc-512 9751KB 13268KB kmalloc-256 6703KB 6704KB kmalloc-128 1092KB 1560KB kmalloc-64 3089KB 4748KB kmalloc-32 1862KB 2964KB kmalloc-16 493KB 528KB kmalloc-8 1184KB 1200KB kmalloc-192 1738KB 2296KB kmalloc-96 1506KB 1848KB kmem_cache_node 223KB 228KB kmem_cache 195KB 195KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 0 UID: 0 PID: 5349 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~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+0x1dfa/0x2470 mm/page_alloc.c:5191 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416 folio_alloc_mpol_noprof+0x36/0x2f0 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+0x86c/0x6340 mm/memory.c:4714 handle_pte_fault mm/memory.c:6198 [inline] __handle_mm_fault+0x17d1/0x2aa0 mm/memory.c:6336 handle_mm_fault+0x589/0xd10 mm/memory.c:6505 do_user_addr_fault+0x7a6/0x1370 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:__put_user_nocheck_4+0x3/0x10 arch/x86/lib/putuser.S:104 Code: d9 0f 01 cb 89 01 31 c9 0f 01 ca e9 97 80 03 00 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 01 cb <89> 01 31 c9 0f 01 ca c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90020c37bb8 EFLAGS: 00050246 RAX: 0000000000000001 RBX: 0000000000000001 RCX: 00007ffeb8595370 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880235151ec RBP: ffff888023515180 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff888023515198 R14: ffffc90020c37c28 R15: ffffc90020c37c40 epoll_put_uevent include/linux/eventpoll.h:85 [inline] ep_send_events+0x2fd/0xc40 fs/eventpoll.c:1822 ep_try_send_events fs/eventpoll.c:1905 [inline] ep_poll fs/eventpoll.c:1970 [inline] do_epoll_wait+0x91a/0x1030 fs/eventpoll.c:2473 __do_sys_epoll_wait fs/eventpoll.c:2481 [inline] __se_sys_epoll_wait fs/eventpoll.c:2476 [inline] __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2476 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f10942a7407 Code: Unable to access opcode bytes at 0x7f10942a73dd. RSP: 002b:00007ffeb8595210 EFLAGS: 00000202 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 00007f1094987880 RCX: 00007f10942a7407 RDX: 0000000000000008 RSI: 00007ffeb8595370 RDI: 000000000000000b RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000bb8 R11: 0000000000000202 R12: 0000000000000000 R13: 0000558152c7b100 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess): 0: d9 0f (bad) (%rdi) 2: 01 cb add %ecx,%ebx 4: 89 01 mov %eax,(%rcx) 6: 31 c9 xor %ecx,%ecx 8: 0f 01 ca clac b: e9 97 80 03 00 jmp 0x380a7 10: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 0f 01 cb stac * 2a: 89 01 mov %eax,(%rcx) <-- trapping instruction 2c: 31 c9 xor %ecx,%ecx 2e: 0f 01 ca clac 31: c3 ret 32: cc int3 33: cc int3 34: cc int3 35: cc int3 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop