[Valgrind-users] Signal handling in 2.1.0

[Crispin F. <val...@fl...>]

Hi,

I am using 2.1.0, (debian package), and have come across a problem with
the signal handling.

The program is a test case, where normally, and under previous versions
of valgrind, it would exit after 1 second. However using 2.1.0 it just
sits in the read() forever. This seems to be because the read() function
call is getting restarted, which is not what normally happens.

== START ==
#include <unistd.h>
#include <signal.h>

static void nullfunction( int ) {}

static void 
setup_signal( int sig, void(*routine)(int) )
{
   struct sigaction act;
   act.sa_flags   = 0;
   act.sa_handler = (void(*)(int))routine;
   sigemptyset( &act.sa_mask );
   sigaction( sig, &act, 0 );
}

int main()
{
   char buff[8];

   setup_signal( SIGALRM, nullfunction );
   alarm( 1 );
   read( 0, buff, sizeof( buff ) );
   alarm( 0 );
   return 0;
}

== CUT ==

System: debian unstable,
Kernel 2.6.1, libc: debian package 2.3.2.ds1-9

Shall I put this into bugzilla ?

Crispin