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Re: "pbuf_flush: time elapsed" problem

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  • Subject: Re: "pbuf_flush: time elapsed" problem
  • Date: Mon, 17 Oct 2005 13:03:17 -0600
Justin,

>Date: Mon, 17 Oct 2005 13:50:13 -0400
>From: Justin Cooke <address@hidden>
>Organization: NOAA/NWS/FSL
>To: Steve Emmerson <address@hidden>
>Subject: Re: "pbuf_flush: time elapsed" problem

The above message contained the following:

[snip]
> After some more digging we have realized that the strace command on AIX 
> is completely different than what is available on Linux. 
> 
> "truss" seems to be a similar equivalent, but we are running into 
> problems attaching it the rpc.ldmd process for our NEXRAD2 feed.
> 
> When executing (where PID is the PID of the NEXRAD2 feed):
> 
> $ truss -o truss.out -p PID
> truss: 0915-023 Cannot control process #PID
> 
> This error only occurs when trying to truss a rpc.ldmd process, it works 
> fine on a pqact process.  All of the ldm processes are started by the 
> same user and that's also the account that we are executing the truss 
> with.  Any ideas?

Because the rpc.ldmd program is owned by root and setuid, try executing
the truss(1) utility as root.

> I have opened a ticket with our AIX support to see if there are any 
> other tools similar to strace that we should try.
> 
> Justin

Regards,
Steve Emmerson