https://wiki.alpinelinux.org/w/api.php?action=feedcontributions&user=Bjorn.helgaas&feedformat=atomAlpine Linux - User contributions [en]2024-03-28T15:20:56ZUser contributionsMediaWiki 1.40.0https://wiki.alpinelinux.org/w/index.php?title=Error_message_on_boot:_Address_space_collision:_host_bridge_window_conflicts_with_Adaptor_ROM&diff=5469Error message on boot: Address space collision: host bridge window conflicts with Adaptor ROM2011-06-30T18:37:00Z<p>Bjorn.helgaas: error msg can be ignored, please report other problems</p>
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<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 />
<pre><br />
pci_root PNP0A08:00: address space collision: host bridge window [mem<br />
0x000cc000-0x000cffff] conflicts with Video ROM [mem 0x000c0000-0x000ce9ff]<br />
</pre><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 "pci=nocrs" parameter may be a workaround while debugging the problem.<br />
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To use "pci=nocrs", 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 />
<pre><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 />
</pre></div>Bjorn.helgaas