Sounds like you are leaking sockets.
I'd check the code.
lsof is available on x86 linux. I think it comes installed by default
on ubuntu; if not, the shell will tell you what to install.
-Brett
On 06/08/2010 02:46 PM, Jean-Francois wrote:
> Our embedded application currently run on a x86 sbc, with an few years old
> minimal linux distributions.
>
> We are porting our application to the TS-7552. Things should be very straight
> forward except of course for HW related stuff. However, when I run the
> software on the TS-7552, during the initialization phase of the program where
> many files/pipes/sockets are opened, I get errors about "Too many open files"
> and the program quits. This was not an issue on the x86 sbc. I compared the
> kernel parameters "ts.file-nr" and the same max values are the same on both
> (8196). I evidently tried to increase the value, but it did not help. Is
> there any other parameter I should check?
>
> If I run the program in background, it also quits, but what's weird, is that
> if I launch a second instance of the program quickly, before the first
> instance quits, I don't get the error and both instances of the program runs
> normally (no error and everything else seem to work fine).
>
> I noticed something that look suspicious. the command lsof returns a tons of
> lines (3728 to be exact) like:
>
> app 227 root 3u sock 0,4 3168 can't identify protocol
>
> This is when only one instance of the program is running (the other instance
> has been killed). Also "sysctl fs.file-nr" returns:
>
> fs.file-nr = 1161 0 8192
>
> I can't check if I get the same on the x86 since lsof is not available... The
> x86 toolchain is using glibc and the arm toolchain is using uClibc if that
> matters.
>
> Any ideas anyone? Anything else I should check?
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
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