id = 2212
title = "\"pci_hp_register failed with error -16\" was found in Guest when launching VM with pci-bridge and \"-machine q35\""
state = "opened"
created_at = "2024-03-08T03:28:19.167Z"
closed_at = "n/a"
labels = ["device: PCI"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/2212"
host-os = "CentOS 9"
host-arch = "x86_64"
qemu-version = "QEMU emulator version 8.2.50 (v8.2.0-2085-gdb596ae190)"
guest-os = "CentOS 9"
guest-arch = "x86_64"
description = """Host and guest config file configuration:
  CONFIG_HOTPLUG_PCI_CPCI=y
  CONFIG_HOTPLUG_PCI_CPCI_ZT5550=m
  CONFIG_HOTPLUG_PCI_CPCI_GENERIC=m
  CONFIG_HOTPLUG_PCI_SHPC=y
Use this configuration kernel to boot QEMU, with the QEMU parameter "-machine q35 -device pci-bridge,id=bridge0,chassis_nr=1". After the guest boot, dmesg will display "shpchp 0000:00:04.0: pci_hp_register failed with error -16"."""
reproduce = """1.Boot QEMU

2.Check dmesg in VM"""
additional = """Error log:
[root@localhost ~]# dmesg | grep pci_hp_register
[    0.723893] shpchp 0000:00:04.0: pci_hp_register failed with error -16
[dmesg.log](/uploads/8ce302f996255544b4327d27ea4ac555/dmesg.log)"""