On Wed, Oct 1, 2008 at 3:27 PM, Leandro Sales <leandroal@xxxxxxxxx> wrote:
> On Tue, Sep 30, 2008 at 7:11 PM, Arnaldo Carvalho de Melo
> <acme@xxxxxxxxxx> wrote:
>> Em Tue, Sep 30, 2008 at 06:24:57PM -0300, Leandro Sales escreveu:
>>> On Tue, Sep 30, 2008 at 4:16 PM, Arnaldo Carvalho de Melo
>>> <acme@xxxxxxxxxx> wrote:
>>> > Em Tue, Sep 30, 2008 at 03:32:17PM -0300, Leandro Sales escreveu:
>>> >> On Mon, Sep 29, 2008 at 3:37 PM, Arnaldo Carvalho de Melo
>>> >> <acme@xxxxxxxxxx> wrote:
>>> >> > Em Mon, Sep 29, 2008 at 03:33:44PM -0300, Leandro Sales escreveu:
>>> >> >> Hello folks,
>>> >> >> I'm getting this message while using 2.6.27:
>>> >> >>
>>> >> >> Can not create DCCP socket (Protocol driver not attached)
>>> >> >
>>> >> > What is the source of such messages? VLC? What? Try strace to see what
>>> >> > is the syscall that fails just before this message is printed, etc.
>>> >> >
>>> >> >> "uname -a" output:
>>> >> >> Linux localhost 2.6.27-rc4-44301-g8269be1 #7 SMP Sun Sep 28 17:02:25
>>> >> >> BRT 2008 i686 AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux
>>> >> >>
>>> >> >> Anything wrong? I tried compile DCCP using both static and module
>>> >> >> methods and it produces the same effect.
>>> >> >
>>> >> > - Arnaldo
>>> >> >
>>> >>
>>> >> Hello Arnaldo,
>>> >> I'm just running tests with iperf to later use gstreamer plugin that
>>> >> I developed. Here it is the output provided by strace while executing
>>> >> iperf. I'm sorry for the long message. In addition, I'm providing
>>> >> support for a guy from China that wants to use my gstreamer plugin and
>>> >> he is facing similar problem, getting a permission denied message
>>> >> while using the plugin, even then he run the plugin as root.
>>> >
>>> > iperf is multithreaded, so you need to run strace with -f to trace child
>>> > processes, also please try limiting the output to just the networking
>>> > syscalls:
>>> >
>>> > strace -f -e trace=network iperf
>>> >
>>> > "net namespaces" blipped in my mind, but it may well be just my brain
>>> > needing more coffee...
>>> >
>>> > - Arnaldo
>>> >
>>>
>>> Arnaldo, thank you for the reply. Please, check the strace output
>>> below. I'm not sure what it happen, although I have a thought. Any
>>> clue?
>>>
>>> Process 5849 attached (waiting for parent)
>>> Process 5849 resumed (parent 5848 ready)
>>> [pid 5849] socket(PF_NETLINK, SOCK_RAW, 0) = 3
>>> [pid 5849] bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
>>> [pid 5849] getsockname(3, {sa_family=AF_NETLINK, pid=5848,
>>> groups=00000000}, [12]) = 0
>>> [pid 5849] sendto(3, "\24\0\0\0\26\0\1\3&\230\342H\0\0\0\0\0\0\0\0",
>>> 20, 0, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
>>> [pid 5849] recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0,
>>> groups=00000000},
>>> msg_iov(1)=[{"8\0\0\0\24\0\2\0&\230\342H\330\26\0\0\2\10\200\376\1\0\0\0\10\0\1\0\177\0\0\1"...,
>>> 4096}], msg_controllen=0, msg_flags=0}, 0) = 116
>>> [pid 5849] recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0,
>>> groups=00000000},
>>> msg_iov(1)=[{"@\0\0\0\24\0\2\0&\230\342H\330\26\0\0\n\200\200\376\1\0\0\0\24\0\1\0\0\0\0\0"...,
>>> 4096}], msg_controllen=0, msg_flags=0}, 0) = 128
>>> [pid 5849] recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0,
>>> groups=00000000},
>>> msg_iov(1)=[{"\24\0\0\0\3\0\2\0&\230\342H\330\26\0\0\0\0\0\0\1\0\0\0\24\0\1\0\0\0\0\0"...,
>>> 4096}], msg_controllen=0, msg_flags=0}, 0) = 20
>>> [pid 5849] socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP) = 3
>>> [pid 5849] connect(3, {sa_family=AF_INET6, sin6_port=htons(5001),
>>> inet_pton(AF_INET6, "::", &sin6_addr), sin6_flowinfo=0,
>>> sin6_scope_id=0}, 28) = 0
>>> [pid 5849] getsockname(3, {sa_family=AF_INET6,
>>> sin6_port=htons(56372), inet_pton(AF_INET6, "::1", &sin6_addr),
>>> sin6_flowinfo=0, sin6_scope_id=0}, [28]) = 0
>>> [pid 5849] socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 3
>>> [pid 5849] connect(3, {sa_family=AF_INET, sin_port=htons(5001),
>>> sin_addr=inet_addr("0.0.0.0")}, 16) = 0
>>> [pid 5849] getsockname(3, {sa_family=AF_INET, sin_port=htons(37587),
>>> sin_addr=inet_addr("127.0.0.1")}, [16]) = 0
>>> [pid 5849] socket(PF_INET6, 0x6 /* SOCK_??? */, 0x21 /* IPPROTO_???
>>> */) = -1 EUNATCH (Protocol driver not attached)
>>
>>
>> Here we gett the EUNATACH when trying SOCK_DCCP (6), IPPROTO_DCCP (33),
>> but I couldn't find any EUNATACH return in the sock_create path, do you
>> have selinux running?
>>
>> It tries several times PF_INET6 then falls back to PF_INET. Is this
>> using glibc? dietlibc? ARM? lsmod output can also help.
>>
>> - Arnaldo
>>
>
> Hello Arnaldo,
>
> kernel version: 2.6.27-rc4 (from gerrit git three)
>
> sys-libs/glibc version: 2.6.1
>
> No selinux running.
>
> In addition, this problem is occurring in both the desktop and on nokia n800.
>
> Thank you,
> Leandro.
>
Just completing the information. Using 2.6.26 on arm worked.
Regards,
Leandro.
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