Subject: Re: netstat problem with ksyms.
To: Chavdar Ivanov <ci4ic4@gmail.com>
From: Pavel Cahyna <pavel@netbsd.org>
List: current-users
Date: 05/27/2006 17:23:34
On Sat, May 27, 2006 at 01:13:12PM +0100, Chavdar Ivanov wrote:
> Hi,
> 
> It seems if one has
> 
> pseudo-device   ksyms                   # /dev/ksyms
> 
> in one's kernel, netstat refuses to play:
> 
> # netstat
> netstat: no namelist
> 
> If I take just the above line from the kernel definition, it works
> fine. The ktruss output shows opening of /dev/ksyms if the option is
> enabled, but fails further:
> 
> ...
> 12117      1 netstat  open("/dev/kmem", 0, 0)     = 5
> 12117      1 netstat  fcntl(0x5, 0x2, 0x1)        = 0
> 12117      1 netstat  open("/dev/drum", 0, 0)     = 6
> 12117      1 netstat  fcntl(0x6, 0x2, 0x1)        = 0
> 12117      1 netstat  open("/dev/ksyms", 0, 0)    = 7
> 12117      1 netstat  fcntl(0x7, 0x2, 0x1)        = 0
> 12117      1 netstat  close(0x7)                  = 0
> 12117      1 netstat  getgid()                    = 0, 2
> 12117      1 netstat  setgid(0)                   = 0
> 12117      1 netstat  open("/dev/ksyms", 0, 0)    = 7
> 12117      1 netstat  fcntl(0x7, 0x2, 0x1)        = 0
> 12117      1 netstat  pread(0x7, 0xbfbfaf90, 0x20, 0, 0, 0) = 32
>       "\^?ELF\^A\0\0\0\0\0\0\0\0\0\0\0\^B\0\0\0\^A\0\0\0\0\0\0\0004\0\0\0"
> 12117      1 netstat  __fstat30(0x7, 0xbfbfdf40)  = 0
> 12117      1 netstat  pread(0x7, 0xbfbfdf00, 0x34, 0, 0, 0) = 52
>       "\^?ELF\^A\0\0\0\0\0\0\0\0\0\0\0\^B\0\0\0\^A\0\0\0\0\0\0\0004\0\0\0t\0"
> 12117      1 netstat  close(0x7)                  = 0
> 12117      1 netstat  write(0x2, 0xbfbfd6d0, 0x9) = 9
>       "netstat: "
> 12117      1 netstat  write(0x2, 0xbfbfd6f0, 0xb) = 11
>       "no namelist"
> 12117      1 netstat  write(0x2, 0x8068f5b, 0x1)  = 1
>       "\n"
> 12117      1 netstat  exit(0x1)
> .....
> 
> Obviously with no ksyms in the kernel, it cannot open /dev/ksyms and
> carries on it's work.
> 
> Any ideas?
> 
> (BTW this is -current from yesterday, i386).

- did it work before yesterday?

- do you have "options MULTIBOOT"?

- what is the version of src/sys/arch/i386/conf/kern.ldscript ?

Pavel