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Re: LDM mystery

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  • Subject: Re: LDM mystery
  • Date: Tue, 13 Sep 2005 15:59:29 -0600
Sarah,

>Date: Tue, 13 Sep 2005 15:40:05 -0600
>From: Sarah Thompson <address@hidden>
>Organization: NOAA/NWS/FSL
>To: Steve Emmerson <address@hidden>
>Subject: Re: LDM mystery

The above message contained the following:

> an strace log without a crash though...so i'm not sure it tells you
> anything.  i mostly wanted you to look at it and see if it looked
> right.  thanks. sarah
...
> select(1, [0], NULL, NULL, {1, 610000}) = 0 (Timeout)
> waitpid(-1, 0xbfff911c, WNOHANG)        = 0
> select(1, [0], NULL, NULL, {6, 0})      = ? ERESTARTNOHAND (To be restarted)
> --- SIGCONT (Continued) @ 0 (0) ---
> select(1, [0], NULL, NULL, {4, 460000}) = ? ERESTARTNOHAND (To be restarted)
> --- SIGCONT (Continued) @ 0 (0) ---
> select(1, [0], NULL, NULL, {2, 320000}) = 0 (Timeout)
> waitpid(-1, 0xbfff911c, WNOHANG)        = 0
> select(1, [0], NULL, NULL, {6, 0})      = ? ERESTARTNOHAND (To be restarted)
> --- SIGCONT (Continued) @ 0 (0) ---
> select(1, [0], NULL, NULL, {4, 530000}) = 0 (Timeout)
> waitpid(-1, 0xbfff911c, WNOHANG)        = 0
> select(1, [0], NULL, NULL, {6, 0})      = ? ERESTARTNOHAND (To be restarted)
> --- SIGCONT (Continued) @ 0 (0) ---
> select(1, [0], NULL, NULL, {3, 270000}) = 0 (Timeout)
> waitpid(-1, 0xbfff911c, WNOHANG)        = 0
> select(1, [0], NULL, NULL, {6, 0})      = ? ERESTARTNOHAND (To be restarted)
> --- SIGCONT (Continued) @ 0 (0) ---
> select(1, [0], NULL, NULL, {3, 40000})  = 0 (Timeout)
> waitpid(-1, 0xbfff911c, WNOHANG)        = 0
> select(1, [0], NULL, NULL, {6, 0})      = 1 (in [0], left {3, 430000})
> accept(0, {sa_family=AF_INET, sin_port=htons(36245), 
> sin_addr=inet_addr("137.75.132.64")}, [16]) = 1
> socket(PF_FILE, SOCK_STREAM, 0)         = 3
> connect(3, {sa_family=AF_FILE, path="/var/run/.nscd_socket"}, 110) = -1 
> ENOENT (No such file or directory)
...

This looks like an strace(1) of the top-level, LDM server rather than of
a hung, upstream LDM (for example, the only accept(2) call is in the
server).

Regards,
Steve Emmerson