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diff --git a/gitlab/issues/target_missing/host_missing/accel_KVM/1003.toml b/gitlab/issues/target_missing/host_missing/accel_KVM/1003.toml
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index 000000000..5a85bdab5
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+++ b/gitlab/issues/target_missing/host_missing/accel_KVM/1003.toml
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+id = 1003
+title = "\"Cannot allocate memory\" when boots a VM > 1026GB memory with -accel kvm"
+state = "closed"
+created_at = "2022-04-24T02:39:33.819Z"
+closed_at = "2022-06-19T05:12:22.616Z"
+labels = ["accel: KVM", "workflow::Triaged"]
+url = "https://gitlab.com/qemu-project/qemu/-/issues/1003"
+host-os = "Debian 11.2"
+host-arch = "x86"
+qemu-version = "6.2.0"
+guest-os = "not relavant to this problem"
+guest-arch = "x86"
+description = """I can boot an empty VM using command `qemu-system-x86_64 -m 1026G -accel kvm -vnc :1` or `qemu-system-x86_64 -m 8T -vnc :1`
+
+But when I use `qemu-system-x86_64 -m 1027G -accel kvm -vnc :1`, it will not boot:
+
+```
+root@debian11:~# qemu-system-x86_64 -m 1027G -accel kvm -vnc :1
+qemu-system-x86_64: kvm_set_user_memory_region: KVM_SET_USER_MEMORY_REGION failed, slot=1, start=0x100000000, size=0x10000000000: Cannot allocate memory
+kvm_set_phys_mem: error registering slot: Cannot allocate memory
+Aborted
+```
+
+Which means, with `-accel kvm`, it only can boot a VM which memory <= 1026G, but without these args, it can boot whatever you want."""
+reproduce = """1. sysctl vm.overcommit_memory=1  # enable overcommit first
+2. qemu-system-x86_64 -m 1027G -accel kvm -vnc :1"""
+additional = """The qemu I use is compiled from the latest source, not the package provided by debian.
+
+Hardware is `PowerEdge R630` with `E5-2630 v4` * 2, 128G physical RAM."""