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From: "Eli Zaretskii" <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: More info on sporadic OS/X crash
Date: Wed, 28 Apr 2004 20:53:17 +0200
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> From: "Piet van Oostrum" <piet@cs.uu.nl>
> Date: Wed, 28 Apr 2004 13:14:59 +0200
> 
> (gdb) frame 1
> #1  0x0012eeac in sys_select (n=126, rfds=0x38e7e4, wfds=0x0, efds=0x0, timeout=0xbfffc770) at mac.c:2787
> 2787        return select(n, rfds, wfds, efds, timeout);    
> (gdb) print *timeout
> $3 = {
>   tv_sec = 0, 
>   tv_usec = 999996
> }
> 
> So this looks normal.

Well, yes and no: how come it's 999996 microseconds instead of a full
second?  That is, why don't you see this instead?

 $3 = {
   tv_sec = 1, 
   tv_usec = 0
 }

This higher frame in the backtrace:

> #2  0x00119948 in wait_reading_process_input (time_limit=1, microsecs=0, read_kbd=3506604, do_display=0) at process.c:4311

seems to imply that wait_reading_process_input was called to wait for
1 second and 0 microseconds, so where from did the small inaccuracy
creep in?