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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:07 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:17 +0200 |
| commit | 9260319e7411ff8281700a532caa436f40120ec4 (patch) | |
| tree | 2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues/target_missing/host_missing/accel_KVM/1003.toml | |
| parent | 225caa38269323af1bfc2daadff5ec8bd930747f (diff) | |
| download | emulator-bug-study-9260319e7411ff8281700a532caa436f40120ec4.tar.gz emulator-bug-study-9260319e7411ff8281700a532caa436f40120ec4.zip | |
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Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_KVM/1003.toml')
| -rw-r--r-- | gitlab/issues/target_missing/host_missing/accel_KVM/1003.toml | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/gitlab/issues/target_missing/host_missing/accel_KVM/1003.toml b/gitlab/issues/target_missing/host_missing/accel_KVM/1003.toml deleted file mode 100644 index 5a85bdab..00000000 --- a/gitlab/issues/target_missing/host_missing/accel_KVM/1003.toml +++ /dev/null @@ -1,29 +0,0 @@ -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.""" |