[syslog-ng] Re: syslog-ng Digest, Vol 6, Issue 10

[Roberto Nibali]

> Right.  The fun starts when you do 'echo NNN > /proc/sys/kernel/pid_max' 
> for some NNN > 32k.  On 32bit boxes 64K is the limit due to the /proc inode
> wonkiness, but on 64bit kernels it's just a matter of how much RAM you have. ;)

And I guess this is depending on the selected frame size per process.

> The numbers returned by getpid() and gettid() come out of the same PID space,
> and the vast majority of programs aren't thread-aware, and get their PID
> via fork() or vfork() anyhow...

True, to get the thread_id you either need to extract it via the POSIX 
pthread_* calls or, in case of Linux, you can use the non-portable gettid().

> It's effectively an 'int' - any code that assumes a smaller range will
> fail in the most interesting ways in the near future...  :)

Indeed. Thank you for your explanations.

Best regards,
Roberto Nibali, ratz
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