cred 131KB 340KB anon_vma_chain 48KB 173KB anon_vma 64KB 295KB pid 161KB 359KB Acpi-Operand 198KB 316KB Acpi-ParseExt 21KB 35KB Acpi-Parse 12KB 23KB Acpi-State 7KB 39KB Acpi-Namespace 35KB 52KB shared_policy_node 7KB 8KB numa_policy 6KB 16KB perf_event 15KB 31KB trace_event_file 577KB 580KB ftrace_event_field 1118KB 1122KB pool_workqueue 2351KB 2416KB task_group 48KB 64KB maple_node 417KB 1328KB mm_struct 121KB 446KB vmap_area 282KB 1033KB debug_objects_cache 2791KB 13892KB page->ptl 16KB 74KB kmalloc-cg-8k 2992KB 3136KB kmalloc-cg-4k 17232KB 18272KB kmalloc-cg-2k 10932KB 11968KB kmalloc-cg-1k 3098KB 3680KB kmalloc-cg-512 1256KB 1760KB kmalloc-cg-256 446KB 512KB kmalloc-cg-128 289KB 336KB kmalloc-cg-64 53KB 88KB kmalloc-cg-32 43KB 164KB kmalloc-cg-16 6KB 16KB kmalloc-cg-8 23KB 40KB kmalloc-cg-192 77KB 92KB kmalloc-cg-96 65KB 100KB kmalloc-8k 7360KB 8000KB kmalloc-4k 37320KB 38624KB kmalloc-2k 15192KB 16672KB kmalloc-1k 7294KB 9120KB kmalloc-512 11986KB 13952KB kmalloc-256 6934KB 7352KB kmalloc-128 1684KB 2196KB kmalloc-64 3096KB 3624KB kmalloc-32 2197KB 2948KB kmalloc-16 451KB 508KB kmalloc-8 484KB 580KB kmalloc-192 2466KB 2844KB kmalloc-96 2040KB 2936KB kmem_cache_node 216KB 220KB kmem_cache 180KB 218KB Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 2 UID: 0 PID: 5531 Comm: sshd 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+0x553/0x970 kernel/panic.c:651 panic+0xd1/0xe0 kernel/panic.c:788 out_of_memory.cold+0xa2/0x170 mm/oom_kill.c:1166 __alloc_pages_may_oom mm/page_alloc.c:4116 [inline] __alloc_pages_slowpath mm/page_alloc.c:4967 [inline] __alloc_frozen_pages_noprof+0x24c7/0x2dc0 mm/page_alloc.c:5317 alloc_pages_mpol+0x1fb/0x540 mm/mempolicy.c:2490 folio_alloc_mpol_noprof+0x36/0x260 mm/mempolicy.c:2509 __swap_cache_alloc mm/swap_state.c:434 [inline] swap_cache_alloc_folio+0x3d7/0xc50 mm/swap_state.c:524 swap_cache_read_folio+0x47/0x140 mm/swap_state.c:646 swap_cluster_readahead+0x479/0x5f0 mm/swap_state.c:842 swapin_readahead+0x159/0x1200 mm/swap_state.c:984 do_swap_page+0xf98/0x5780 mm/memory.c:4836 handle_pte_fault mm/memory.c:6382 [inline] __handle_mm_fault+0x192f/0x2a00 mm/memory.c:6517 handle_mm_fault+0x37b/0xa30 mm/memory.c:6686 do_user_addr_fault+0x745/0x12f0 arch/x86/mm/fault.c:1394 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0010:rseq_set_ids_get_csaddr include/linux/rseq_entry.h:489 [inline] RIP: 0010:rseq_update_usr include/linux/rseq_entry.h:537 [inline] RIP: 0010:rseq_slowpath_update_usr kernel/rseq.c:303 [inline] RIP: 0010:__rseq_handle_slowpath+0x248/0x680 kernel/rseq.c:329 Code: 0f 85 1f 04 00 00 44 0f b6 bb 54 16 00 00 bf 01 00 00 00 44 89 fe e8 b7 01 c4 ff 41 80 ff 01 0f 86 33 01 00 00 e8 98 07 c4 ff <45> 8b 7d 00 e8 8f 07 c4 ff 48 8d bb 58 16 00 00 48 b8 00 00 00 00 RSP: 0000:ffffc90003ba7ea0 EFLAGS: 00050293 RAX: 0000000000000000 RBX: ffff8880257e4b00 RCX: 0000000000000000 RDX: ffff8880257e4b00 RSI: ffffffff8245f4b8 RDI: ffff8880257e4b00 RBP: ffffc90003ba7ef0 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000002 R11: 0000000000000001 R12: ffffc90003ba7f48 R13: 00007fefacd51140 R14: 0000000000000003 R15: 0000000000000002 rseq_handle_slowpath include/linux/rseq.h:22 [inline] resume_user_mode_work include/linux/resume_user_mode.h:62 [inline] __exit_to_user_mode_loop kernel/entry/common.c:70 [inline] exit_to_user_mode_loop kernel/entry/common.c:101 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline] irqentry_exit+0x460/0xa10 kernel/entry/common.c:165 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x557101b31180 Code: Unable to access opcode bytes at 0x557101b31156. RSP: 002b:00007ffcea9bb350 EFLAGS: 00010206 RAX: ffffffffffffffff RBX: 000000000000164c RCX: 00007fefac715370 RDX: ffffffffffffffff RSI: 00007ffcea9bb3e8 RDI: ffffffffffffffff RBP: 00007ffcea9bb3e8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000557138d50c00 R13: 0000000000000000 R14: 0000557101b76004 R15: 0000000000000064 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess): 0: 0f 85 1f 04 00 00 jne 0x425 6: 44 0f b6 bb 54 16 00 movzbl 0x1654(%rbx),%r15d d: 00 e: bf 01 00 00 00 mov $0x1,%edi 13: 44 89 fe mov %r15d,%esi 16: e8 b7 01 c4 ff call 0xffc401d2 1b: 41 80 ff 01 cmp $0x1,%r15b 1f: 0f 86 33 01 00 00 jbe 0x158 25: e8 98 07 c4 ff call 0xffc407c2 * 2a: 45 8b 7d 00 mov 0x0(%r13),%r15d <-- trapping instruction 2e: e8 8f 07 c4 ff call 0xffc407c2 33: 48 8d bb 58 16 00 00 lea 0x1658(%rbx),%rdi 3a: 48 rex.W 3b: b8 00 00 00 00 mov $0x0,%eax