You are correct it's a 7300 based chipset, and though not the newest machine going, still a pretty darn quick box that is supposed to support virtualization. Here is an lspci from the machine if it's of any help: 00:00.0 Host bridge: Intel Corporation 7300 Chipset Memory Controller Hub (rev 01) 00:01.0 PCI bridge: Intel Corporation 7300 Chipset PCI Express Port 1 (rev 01) 00:02.0 PCI bridge: Intel Corporation 7300 Chipset PCI Express Port 2 (rev 01) 00:03.0 PCI bridge: Intel Corporation 7300 Chipset PCI Express Port 3 (rev 01) 00:04.0 PCI bridge: Intel Corporation 7300 Chipset PCI Express Port 4 (rev 01) 00:05.0 PCI bridge: Intel Corporation 7300 Chipset PCI Express Port 5 (rev 01) 00:06.0 PCI bridge: Intel Corporation 7300 Chipset PCI Express Port 6 (rev 01) 00:07.0 PCI bridge: Intel Corporation 7300 Chipset PCI Express Port 7 (rev 01) 00:10.0 Host bridge: Intel Corporation 7300 Chipset FSB Registers (rev 01) 00:10.1 Host bridge: Intel Corporation 7300 Chipset FSB Registers (rev 01) 00:10.2 Host bridge: Intel Corporation 7300 Chipset FSB Registers (rev 01) 00:10.3 Host bridge: Intel Corporation 7300 Chipset FSB Registers (rev 01) 00:11.0 Host bridge: Intel Corporation 7300 Chipset Snoop Filter Registers (rev 01) 00:11.3 Host bridge: Intel Corporation 7300 Chipset Snoop Filter Registers (rev 01) 00:13.0 Host bridge: Intel Corporation 7300 Chipset Debug and Miscellaneous Registers (rev 01) 00:15.0 Host bridge: Intel Corporation 7300 Chipset FBD Branch 0 Registers (rev 01) 00:16.0 Host bridge: Intel Corporation 7300 Chipset FBD Branch 1 Registers (rev 01) 00:1c.0 PCI bridge: Intel Corporation 631xESB/632xESB/3100 Chipset PCI Express Root Port 1 (rev 09) 00:1d.0 USB controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #1 (rev 09) 00:1d.1 USB controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #2 (rev 09) 00:1d.2 USB controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #3 (rev 09) 00:1d.3 USB controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #4 (rev 09) 00:1d.7 USB controller: Intel Corporation 631xESB/632xESB/3100 Chipset EHCI USB2 Controller (rev 09) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d9) 00:1f.0 ISA bridge: Intel Corporation 631xESB/632xESB/3100 Chipset LPC Interface Controller (rev 09) 00:1f.2 IDE interface: Intel Corporation 631xESB/632xESB/3100 Chipset SATA IDE Controller (rev 09) 01:03.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI ES1000 (rev 02) 01:04.0 System peripheral: Compaq Computer Corporation Integrated Lights Out Controller (rev 03) 01:04.2 System peripheral: Compaq Computer Corporation Integrated Lights Out Processor (rev 03) 01:04.4 USB controller: Hewlett-Packard Company Integrated Lights-Out Standard Virtual USB Controller 01:04.6 IPMI SMIC interface: Hewlett-Packard Company Integrated Lights-Out Standard KCS Interface 02:00.0 RAID bus controller: Hewlett-Packard Company Smart Array Controller (rev 04) 03:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Upstream Port (rev 01) 03:00.3 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express to PCI-X Bridge (rev 01) 04:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E1 (rev 01) 04:01.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E2 (rev 01) 04:02.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E3 (rev 01) 05:00.0 PCI bridge: Broadcom EPB PCI-Express to PCI-X Bridge (rev c3) 06:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12) 07:00.0 PCI bridge: Broadcom EPB PCI-Express to PCI-X Bridge (rev c3) 08:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12) 0b:00.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) 0c:00.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) 0c:01.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) 0c:09.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) 17:00.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) 18:01.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) 18:02.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) 18:08.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) 18:09.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) 18:0a.0 PCI bridge: PLX Technology, Inc. PEX 8533 32-lane, 6-port PCI Express Switch (rev aa) If there is any other info on the machine that would be useful, let me know.. --- Howard Leadmon > -----Original Message----- > From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On > Behalf Of Akemi Yagi > Sent: Thursday, September 05, 2013 6:32 PM > To: CentOS mailing list > Subject: Re: [CentOS] Getting a do_IRQ: xx.xxx No irq handler for vector(irq- > 1), any ideas? > > On Thu, Sep 5, 2013 at 2:50 PM, Howard Leadmon <howard at leadmon.net> > wrote: > > Well back to the drawing board over here, but I did get a kvm error it > > seems in the log as well this time. After restarting with the centosplus > > kernel as suggested, I still got: > > > > do_IRQ: 18.146 No irq handler for vector (irq -1) > > kvm: 8547: cpu0 disabled perfctr wrmsr: 0xc1 data 0xabcd > > kvm: 8547: cpu0 disabled perfctr wrmsr: 0xc1 data 0xabcd > > do_IRQ: 18.104 No irq handler for vector (irq -1) > > do_IRQ: 3.136 No irq handler for vector (irq -1) > > do_IRQ: 3.74 No irq handler for vector (irq -1) > > do_IRQ: 18.162 No irq handler for vector (irq -1) > > do_IRQ: 18.164 No irq handler for vector (irq -1) > > > > > > The kernel is currently: 2.6.32-358.18.1.el6.centos.plus.x86_64 > > Just checked the chipset of the HP ProLiant DL580-G5. It looks like > Intel 7300. According to : > > https://access.redhat.com/site/solutions/110053 > > the issue is related to Intel 5500 and 5520 chipsets. That might be > the reason the patch did not work. Or it is also possible that the > patch itself does not work. > > Akemi > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos