Getting link list results in NLE_OPNOTSUPP

[André Prata]

Thanks Thomas,

The output is attached.

André

On Thu, Jan 26, 2012 at 16:12, Thomas Graf <tgraf at infradead.org> wrote:

> On Thu, Jan 26, 2012 at 04:10:36PM +0000, André Prata wrote:
> > By the way, this is being reproduced in the same system, with
> > kernel 2.6.32.53 as well.
>
> Please run
>
> NLCB=debug ./your_program
>
> So we can see the request and response triggering the error code.
>
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-- Debug: Sent Message:
--------------------------   BEGIN NETLINK MESSAGE ---------------------------
  [HEADER] 16 octets
    .nlmsg_len = 20
    .nlmsg_type = 18 <0x12>
    .nlmsg_flags = 773 <REQUEST,ACK,ROOT,MATCH>
    .nlmsg_seq = 1327602152
    .nlmsg_pid = 1539
  [PAYLOAD] 4 octets
    00 00 00 00                                           ....
---------------------------  END NETLINK MESSAGE   ---------------------------
-- Debug: Received Message:
--------------------------   BEGIN NETLINK MESSAGE ---------------------------
  [HEADER] 16 octets
    .nlmsg_len = 40
    .nlmsg_type = 2 <ERROR>
    .nlmsg_flags = 0 <>
    .nlmsg_seq = 1327602152
    .nlmsg_pid = 1539
  [ERRORMSG] 20 octets
    .error = -95 "Operation not supported"
  [ORIGINAL MESSAGE] 16 octets
    .nlmsg_len = 16
    .nlmsg_type = 18 <0x12>
    .nlmsg_flags = 773 <REQUEST,ACK,ROOT,MATCH>
    .nlmsg_seq = 1327602152
    .nlmsg_pid = 1539
---------------------------  END NETLINK MESSAGE   ---------------------------
-- Error received: Operation not supported
-- Original message: type=0x12 length=20 flags=<REQUEST,ACK,ROOT,MATCH> sequence-nr=1327602152 pid=1539

================================= Crash Dump ==================================
Module : /usr/lib/libnl-route-3.so.200.5.2
Code   : page fault

== context ==
rax = 0000000000000000  rdx = 00007F735B2B1080  rcx = 00007F735A59289D  rbx = 00000000FFFFFFF6
rdi = 0000000000000002  rsi = 0000000000000000  rbp = 00007FFF551AB210  rsp = 00007FFF551AAE80
r8  = 00007F735BAE4740  r9  = 00007F735BAE4740  r10 = 00007FFF551AAC30  r11 = 00007F735B084D20
r12 = 00007FFF551AB150  r13 = 00000000016D7BF0  r14 = 0000000000000000  r15 = 00000000016D7C80
rip = 00007F735B084D2D  eflags = 00010246

== stack trace ==
00 00007F735B084D2D                        [libnl-route-3.so.200.5.2]
01 0000000000416F05                        instituto
02 00007F735A4DD38D                        [libc-2.15.so]
03 0000000000406EC9                        instituto
===============================================================================