Re: [PATCH bpf-next] selftests/bpf: make tcp_rtt test more robust to failures

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 03/11, Andrii Nakryiko wrote:
> On Wed, Mar 11, 2020 at 1:41 PM Stanislav Fomichev <sdf@xxxxxxxxxxx> wrote:
> >
> > On 03/11, Andrii Nakryiko wrote:
> > [..]
> > > +     pthread_join(tid, &server_res);
> > > +     CHECK_FAIL(IS_ERR(server_res));
> >
> > I wonder if we add (move) close(server_fd) before pthread_join(), can we
> > fix this issue without using non-blocking socket? The accept() should
> > return as soon as server_fd is closed so it's essentially your
> > 'server_done'.
> 
> That was my first attempt. Amazingly, closing listening socket FD
> doesn't unblock accept()...
Ugh :-(

In this case, feel free to slap:
Reviewed-by: Stanislav Fomichev <sdf@xxxxxxxxxx>

My only other (minor) suggestion was to add a small delay in the first
loop:

	while (!server_done) {
		accept()
		if (!err) {
			udelay(50) <--
			continue
		}
	}

But I suppose that shouldn't be that big of a deal..



[Index of Archives]     [Linux Samsung SoC]     [Linux Rockchip SoC]     [Linux Actions SoC]     [Linux for Synopsys ARC Processors]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]


  Powered by Linux