On Wed, Nov 14, 2012 at 12:46:15PM +0200, Henrik Ahlgren wrote:
On Wed, Nov 14, 2012 at 10:08:45AM +0000, Daniel P. Berrange wrote:
> You definitely need to figure out how to set the SIGPIPE handler to
> 'ignore'. libvirt.so does not do this, because it is bad practice for
> a library to set application global state like this. Not sure what
> you tried, but I'd definitely expect this to work:
>
> $SIG{'PIPE'} = 'IGNORE';
I don't know what I'm doing wrong, but consider the following simple
test script. Perhaps this is a Debian issue?
#!/usr/bin/perl
use Sys::Virt 0.9.2;
my $vmm = Sys::Virt->new(address => "qemu+ssh://root\@SOME.HOST/system")
or die;
$SIG{'PIPE'} = 'IGNORE';
$| = 1;
while (1) {
eval { my $dummy = $vmm->get_node_info };
print ".";
sleep 1;
}
Let's run it and go to SOME.HOST to kill the SSH process:
If you strace this, do you see the SIGPIPE handler being set to IGNORE. On
my system I do:
$ strace ./demo.pl 2>&1 | grep SIGPIPE
rt_sigaction(SIGPIPE, {SIG_IGN, [], SA_RESTORER, 0x343ca0efe0}, NULL, 8) = 0
rt_sigaction(SIGPIPE, {SIG_IGN, [], SA_RESTORER, 0x343ca0efe0}, {SIG_IGN, [], SA_RESTORER,
0x343ca0efe0}, 8) = 0
and I don't see any EPIPE error when killing ssh
Daniel
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