Re: [child0:1694] <timed out>

[Dave Jones <davej@redhat.com>]

On Thu, Aug 14, 2014 at 07:17:48PM +0200, Toralf Förster wrote:
 > With latest git tree I do get now a lot of lines like :
 > 
 > [child0:1694] <timed out>
 > [child0:1694] <timed out>
 > [child0:1694] <timed out>
 > [child1:1695] <timed out>
 > [child0:1694] <timed out>
 > [child0:1694] <timed out>
 > [child1:1695] <timed out>
 > 
 > for a command like this: MALLOC_CHECK_=2 trinity -C 2 -N 100000 -x mremap -q -V /tmp/victims/v1/v2
 > 
 > It is intended ?

It's not a new thing (at least from Trinity's perspective).
If a syscall takes more than a second to complete, we send it a kill
signal.  Some syscalls might be blocking on an fd though, and will
ignore those signals.  You might try checking out /proc/1694/stack
and seeing where it's stuck.  Much of the time it'll be doing sometihng
like a read() on a network socket.  You could then exclude those
by specifiying just a specific network protocol with -P, or if you're
running current git, you can exclude sockets entirely with
--disable-fds=sockets

	Dave