Re: ssh_handle_packets blocking issue

["jeetu.golani@xxxxxxxxx" <jeetu.golani@xxxxxxxxx>]

Hi,

> I just ran into this issues as well using Windows. Here's the
> backtrace:

Oliver, this is interesting. I'm very intrigued to know if this manifests in
the
same way like how I am seeing? Is your code part of a server or client?
In my case this behaviour and blocking occurs on some occasions is that
how you are seeing it too?

Aris, any luck or anything you would like me to try?

Bye for now.



On Tue, Apr 12, 2011 at 1:58 PM, Oliver Stöneberg <oliverst@xxxxxxxxx>wrote:

> I just ran into this issues as well using Windows. Here's the
> backtrace:
>
>        ntdll.dll!775ff8c1()
>        [Frames below may be incorrect and/or missing, no symbols loaded
> for ntdll.dll]
>        ntdll.dll!775ff8c1()
>        mswsock.dll!723d6f0f()
>        mswsock.dll!723d6d30()
>        ws2_32.dll!75eb2f7d()
>        ws2_32.dll!75eb6a28()
>        shell32.dll!762f11f0()
>        libssh.dll!bsd_poll(ssh_pollfd_struct * fds=0x06b87ba8, unsigned
> long nfds=1, int timeout=-1)  Line 212 + 0x2e bytes     C
> >       libssh.dll!ssh_poll(ssh_pollfd_struct * fds=0x06b87ba8, unsigned
> long nfds=1, int timeout=-1)  Line 289 + 0x14 bytes     C
>        libssh.dll!ssh_poll_ctx_dopoll(ssh_poll_ctx_struct *
> ctx=0x06b8b778, int timeout=-1)  Line 635 + 0x17 bytes  C
>        libssh.dll!ssh_handle_packets(ssh_session_struct *
> session=0x06b8bbc8, int timeout=-1)  Line 390 + 0xd bytes       C
>        libssh.dll!ssh_channel_get_exit_status(ssh_channel_struct *
> channel=0x06b8ecb8)  Line 2376 + 0xe bytes      C
>        [External Code]
>
> Pretty strange, that it is using bsd_pool. Looks like an issue in
> ssh_poll_init(). It doesn't set ssh_poll_emu to wsa_poll when it is
> available.
>
>
> > Hi Aris,
> >
> > I thought I'll also send across openssh client debug output taken both
> > when things work and when they fail, maybe this helps somehow too.
> >
> > Thanks again.
> >
> > Bye for now
> >
> > On Wed, Apr 6, 2011 at 8:07 PM, jeetu.golani@xxxxxxxxx
> > <jeetu.golani@xxxxxxxxx> wrote:
> > > Hi Aris,
> > >
> > >> I think it's because the options from ssh_session are overriden by the
> > >> sshbind one. Either use ssh_bind_options_set (I think it's the name)
> or
> > >> call ssh_options_set after the ssh_bind_accept.
> > >
> > > Yup you were right, although ssh_bind_options_set didn't help but when
> > > I set log options with ssh_options_set after ssh_bind_accept it did
> > > the trick :)
> > >
> > > I'm attaching the logs I've collected along with a text with the code
> > > wherein things fall apart on some occassions.
> > >
> > > ...
> > > do {
> > >                ssh_event_dopoll(event, 1000);
> > >                } while(!ssh_channel_is_closed(chan_x11));
> > > ...
> > >
> > > this is basically the place where things fail, this is replica code
> > > from the samplesshd-tty.c file. Is the timeout value of 1000 too small
> > > here? should I have infinite blocking here too or increase this value?
> > >
> > > I'm also attaching the entire server code that i've been working on
> > > for eBrainPool (http://ebrain.in)...beware tough it's laden with
> > > printfs i've put in for debugging...and heavily laden with bugs I
> > > suppose ;)...work in progress.
> > >
> > > Thanks so much guys for all the help truly appreciate it :)
> > >
> > > Bye for now
> > >
> >
>
>
>
>