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Nanne
Asked: 2012-06-21 12:42:57 +0800 CST

crippling repeating "pciehp card not present" notifications

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When using ubuntu (12.04, both installed and on a live usb) I get a lot of these messages:

pciehp 0000:00:1c.5:pcie04: Card not present on Slot(37)
pciehp 0000:00:1c.5:pcie04: Card present on Slot(37)

And with a lot I mean about 20 per second. This has a crippling effect, and I would like to get rid of it :)

The computer is a packard bell easynote BG48-U-100 DC.

I tip I picked up from some fedora/redhat error here was to look at lspci -vnn. I have pasted the part about "00:1c.5" here: http://pastebin.com/0sfsiqW2 For what good it may do, here is the lsmod of my machine: http://pastebin.com/DQZy1kAL

From that first pastebin I think to conclude that it has to do with the module shpchp, which seems to me (aka: google) to have something to do with ACPI. That's as far as I've come in disecting this.

Can anyone help me along further? What can I do, check etc?

I did see this topic but my intentions are not to surpress the error message: I know how to do this (from that topic ;) ), but I'm looking for a real sollution.

Finding the problem on the internet does suspect me to believe it is neither an ubuntu specific nor a packard-bell specific problem.If you google the problem it seems that is present on several other distribution/hardware combo's as well, and it looks like the advice is to remove one of the drivers? I have no clue as to which driver I should look at and and what would be the effect of just removing it.

I have seen this topic which is old-ish, but describes my problem and is about a similar computer. The solution in this topic was to compile a new kernel using a spanish guide, which seems a bit extreme to me, so I'm kinda hoping for a better solution than that.

edit: I just tested on 12.10 which still has the problem

On the account of surpressing: I can surpress it in the syslog, but the IO still goes on. I do also see the mentions in dmesg, and in one of the consoles. Even a way to surpress all these things would be a help at this point.

Another test also shows that a quick Fedora boot has the same issues on this machine

pcie

4 Answers

  1. Best Answer

    I tried the following patch-methods, and listed why they didn't work for me:

    • Bios features: nothing I could do in the bios would effect the hotplug problems I have.
    • Suppressing errors. The blacklist didn't reliably work for some reason (I might have done something wrong, I admit) and as I said, it isn't a real sollution. The polling still would've been going on. Apart from that, the messages would also show up in the tty's, in the DMESG, etc.
    • Unloading modules: the modules were compiled into the kernel, so blacklisting or unloading those doesn't work.

    In the end I did compile my own kernel, using this manual:

    https://help.ubuntu.com/community/Kernel/Compile

    and specifically the "alternative" method. There is no need for all the fancy different flavors if you just need to remove one thing, so I copied my old config (as explained), removed the hotplug stuff, and waited for the compile to complete.

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  2. For what its worth, On an Asrock ion 3d (with Ubuntu 14.04 now) disabling usb3 in BIOS solves the problem.

    Pciehp flooding dmesg ("card nog present") no longer occurs.

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  3. I have a EVGA SR2 and am running Ubuntu 14.04.

    I get countless pciehp messages spamming me as well. I did an experiment and found that the cause on my board is the Marvel LAN adapters being enabled in BIOS. Turning them off removed this problem.

    If I disable them both, the problem disappears, but then I have no Ethernet, unless I use an add-in card.

    This is very strange but it makes trying to install a graphics driver in single user mode absolutely impossible, since it appears on every tty, no matter what runlevel you select and you cannot see what you type.

    An example of the spammage:

    [   79.976724] pciehp 0000:00:1c.0:pcie04: Card not present on Slot(0)
[   79.988924] pciehp 0000:00:1c.0:pcie04: Card present on Slot(0)
[   80.095809] pciehp 0000:00:1c.0:pcie04: Card not present on Slot(0)
[   80.099873] pciehp 0000:00:1c.0:pcie04: Card present on Slot(0)
[   80.135505] pciehp 0000:00:1c.0:pcie04: Card not present on Slot(0)
[   80.139569] pciehp 0000:00:1c.0:pcie04: Card present on Slot(0)

    You can see how fast this happens by the time and it goes on forever.

    Hopefully someone may find this useful. I am still trying to remedy it without having to disable my LAN ports.

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  4. Hit up the bios and disable your Power features. Cool N quiet/powernow and or whatever intel has.

    Look for pcix powerstate features as well. Cause it does sound like a hotplug issue, that will at least troubleshoot that.

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