Segfault in nxupnp

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Viewing 7 posts - 1 through 7 (of 7 total)
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  • #216
    Avatartaichichuan
    Participant

    Hi Gang,

    When I run NX NXSERVER-4.0.346 on Linux Mint 15 (Ubuntu 13.04) on an AMD64 platform with 8GBs of RAM and NVidia NVS 5200 graphics I see a lot of these:

    [25997.289545] nxupnp[24000]: segfault at 0 ip 000000000040c0e8 sp 00007fff006a6030 error 4 in nxupnp[400000+10000]
    [26027.391104] nxupnp[24015]: segfault at 0 ip 000000000040c0e8 sp 00007fff7e78f020 error 4 in nxupnp[400000+10000]
    [26057.503555] nxupnp[24050]: segfault at 0 ip 000000000040c0e8 sp 00007fff39fea680 error 4 in nxupnp[400000+10000]
    [26087.611854] nxupnp[24068]: segfault at 0 ip 000000000040c0e8 sp 00007fff23bf7050 error 4 in nxupnp[400000+10000]

    Anyone have any idea how to either fix these or at least shut the service off?

    TIA

    #302
    Avatarinteroperate
    Participant

    I am seeing exactly the same problem on 64-bit Fedora 19 system with Intel -7-4770 CPU and NVIDIA GK107 [NVS510]

    Running the client causes a hard lock of the system within a couple of minutes of running the client software.

    #304
    Avatartaichichuan
    Participant

    OK, it’s good to know that I’m not the only one to see this.

    #315
    Avatarsil04
    Keymaster

    The best is if you can enable debug log level into server.cfg (uncomment and set SessionLogLevel 7) .

    Then restart the server with: /usr/NX/bin/nxserver –restart

    and copy here nxserver.log if it’s not too long or send it to support.

    #420
    Avatartaichichuan
    Participant

    Here is a copy of the server.log file with debugging enabled as was suggested. Hopefully, one of the developers can make heads or tails of this. There appears to be a lot of debug info that will need to be sorted through to try and find why this process is segfaulting.

    #421
    Avatartaichichuan
    Participant

    OK, so it won’t allow me to upload the server log file. I’ll try it again in compressed format.

    Attachments:
    1. nxserver.tar.gz
    #426
    Avatartitan
    Participant

    I don’t think the server log is going to tell anything useful. If it’s a nxupnp crash, only a core file with symbols will help. If you get in contact with the support, we’ll provide such binary tomorrow.

    In the meanwhile you can just replace the binary with a script doing nothing:

    > sudo sh
    > /usr/NX/bin/nxserver –shutdown
    > cd /usr/NX/bin/
    > mv nxupnp nxpupnp.ori
    > cat > nxupnp
    #!/bin/sh
    sleep 1
    exit 0
    ^D <— press CTRL+D here
    > chmod a+x nxupnp

    Test it:

    > ./nxupnp
    >

    Restart the server:

    /usr/NX/bin/nxserver –startup

    I tried it and I was still able to connect. UPnP is only used to query and forward ports on the router. You won’t have ports forwarded but, except for that, it should work fine.

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