https://wiki.alpinelinux.org/w/api.php?action=feedcontributions&feedformat=atom&user=Bjorn.helgaas 2026-05-10T04:53:03Z User contributions MediaWiki 1.40.0 https://wiki.alpinelinux.org/w/index.php?title=Error_message_on_boot:_Address_space_collision:_host_bridge_window_conflicts_with_Adaptor_ROM&diff=5469 2011-06-30T18:37:00Z

<p>Bjorn.helgaas: error msg can be ignored, please report other problems</p> <hr /> <div>== Adaptor ROM Conflicts ==<br /> <br /> This information relates to error messages such as the one outlined in the page title and other similar ones - for example:<br /> <br /> &lt;pre&gt;<br /> pci_root PNP0A08:00: address space collision: host bridge window [mem<br /> 0x000cc000-0x000cffff] conflicts with Video ROM [mem 0x000c0000-0x000ce9ff]<br /> &lt;/pre&gt;<br /> <br /> This error message occurs due to the way 2.6.34 and later kernels enumerate PCI host bridges and is not specific to Alpine Linux - [https://bugzilla.kernel.org/show_bug.cgi?id=16497 see this kernel bug report]. The message itself does not indicate a functional problem, so it can be ignored.<br /> <br /> If you see additional problems, such as computers with multiple NICs not starting all adaptors reliably and issues with multi display/adaptor configurations, please report them in [https://bugzilla.kernel.org the kernel bugzilla] and attach a complete dmesg log. The &quot;pci=nocrs&quot; parameter may be a workaround while debugging the problem.<br /> <br /> To use &quot;pci=nocrs&quot;, edit the syslinux.cfg boot file and add '''pci=nocrs''' to the parameters. On systems that boot from a USB memory stick, this file is /media/usb/syslinux.cfg<br /> <br /> Example:<br /> <br /> &lt;pre&gt;<br /> timeout 20<br /> prompt 1<br /> default grsec<br /> label grsec<br /> kernel /boot/grsec<br /> append pci=nocrs initrd=/boot/grsec.gz alpine_dev=usbdisk:vfat modules=loop,cramfs,sd-mod,usb-storage quiet<br /> &lt;/pre&gt;</div>

Bjorn.helgaas