second window does not open CTRL-T

[Bernhard Kleine]

Binary package hint: nautilus

by CTRL-T another display should open in the same nautilus window; this has been functioning in Ubuntu 10.04 quite well. However, after an recent update CTRL-T opens another display but does not stop starting (loading). While I have got my launchpad.net account and tried to report this bug, the window ist still loading while the personal folder aside is functioning. One can without problem close the display with the never ending loading. It would be very nice if anybody could look into this error.

thanx

Bernhard

Ubuntu 10.10 - »Maverick Meerkat
nautilus:
  Installiert: 1:2.32.0-0ubuntu1.3
  Kandidat: 1:2.32.0-0ubuntu1.3
  Versionstabelle:
 *** 1:2.32.0-0ubuntu1.3 0
        500 http://mirror.informatik.uni-mannheim.de/pub/linux/distributions/ubuntu/ maverick-updates/main i386 Packages

to be expected: a new display within the same window

what happened: a afunctional display while loading does not stop

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: nautilus 1:2.32.0-0ubuntu1.3
ProcVersionSignature: Ubuntu 2.6.35-27.48-generic 2.6.35.11
Uname: Linux 2.6.35-27-generic i686
NonfreeKernelModules: fglrx
Architecture: i386
Date: Tue Mar 8 18:28:01 2011
ExecutablePath: /usr/bin/nautilus
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.utf8
 SHELL=/bin/bash
SourcePackage: nautilus

[Joe Areeda (areeda)]

I've tried to duplicate this.

In Maverick 10.10 and Natty 11.04 control-T works as expected and opens a new tab. I've had hard disk partitions, folders, nfs mounts and CDs.

[Bernhard Kleine (bernhard-kleine-gmx)]

Yesterday, I tested this again and the bug is still there. Do you have
any idea how to proceed?

any help appreciated

bernhard

[Bernhard Kleine (bernhard-kleine-gmx)]

Am Mittwoch, den 30.03.2011, 05:29 +0000 schrieb Joe Areeda:
> I've tried to duplicate this.
>
> In Maverick 10.10 and Natty 11.04 control-T works as expected and opens
> a new tab. I've had hard disk partitions, folders, nfs mounts and CDs.
>

I reinstalled every package with nautilus in its name and, wonder oh
wonder, it works.

Thus can be closed.

Bernhard

[Joe Areeda (areeda)]

Great news. I'm new to the bug squad and have been using this one to learn the ropes. Trying to duplicate it. Trying to see what's different from my testing system and the one that had the problem

Would you do one thing for my education?

enter the command:

ubuntu-bug --save works.txt nautilus

That will save the current information on packages and options related to nautilus (same as those attached to the bug report). I would like to take a look at what's different.

Joe

[Bernhard Kleine (bernhard-kleine-gmx)]

Hi,

sorry I was to fast:

It worked only once: I had opened nautilus with the (standard) home
directory and could open a second tab using ctrl-T. But then again, when
I tried to change from home to a network directory, this took forever
and the network directory thus was never loaded, which worked, however,
when taking the corresponding entry from a fresh single tab working
nautilus. After that, even a second home directory tab could not be
launched. the same error as reported.

Please find enclosed the outcome from the suggested command.

Greetings

Bernhard

[Joe Areeda (areeda)]

I've been trying different scenarios and found one similar when I try to open a samba share on a Vista machine that only shares a printer no files.

I think we're looking at a Samba issue. I'll search for similar bugs.

What kind of "network directory" are you trying to connect to? (Windows share, nfs, ftp)

One way to answer this is to use the "Connect to Server" command from the file menu.

Another is to look at the location bar in nautilus. smb://<path> is samba sftp:// uses secure ftp ...

Once I know the type of network directory I'd like to try the command line access method to see if we can get an error message instead of hanging.

If we can come up with a repeatable scenario that demonstrates the problem we have a better chance of getting it fixed. Right now I think the missing piece (or at least the next missing piece) is the type of network share we're dealing with.

Note: I am NOT asking for your username/password but I have a general question. Is the username on the share the same as the username you use to log into Ubuntu? Do you see the dialog asking for password?

Joe

[Bernhard Kleine (bernhard-kleine-gmx)]

Am Donnerstag, den 31.03.2011, 15:11 +0000 schrieb Joe Areeda:
> I've been trying different scenarios and found one similar when I try to
> open a samba share on a Vista machine that only shares a printer no
> files.
>
> I think we're looking at a Samba issue. I'll search for similar bugs.
>
> What kind of "network directory" are you trying to connect to? (Windows
> share, nfs, ftp)
>
> One way to answer this is to use the "Connect to Server" command from
> the file menu.
>
> Another is to look at the location bar in nautilus. smb://<path> is
> samba sftp:// uses secure ftp ...
>
> Once I know the type of network directory I'd like to try the command
> line access method to see if we can get an error message instead of
> hanging.
>
> If we can come up with a repeatable scenario that demonstrates the
> problem we have a better chance of getting it fixed. Right now I think
> the missing piece (or at least the next missing piece) is the type of
> network share we're dealing with.
>
> Note: I am NOT asking for your username/password but I have a general
> question. Is the username on the share the same as the username you use
> to log into Ubuntu? Do you see the dialog asking for password?
>
> Joe
>
I have sftp connections saved in the sidebar of nautilus. they actuallly
use the same username. and when I open this connection using nautilus,
there is a password dialogue. I wonder whether this is an samba issues,
since the server where i am going to be connected to, is most probably a
linux server (i have seen the typical directories of linux using a
commandline ssh), therefore, a samba connection is most unlikely.

This would mean that, whenever a sftp connection has been established
once, nautilus ctrl-T would no longer work, even for local directories.
Would be strange enough, that it had not been seen before by others.

If you would like to enquire along this line, you might find the error.
It would be no problem to re-install the nautilus-packages again, and
run nautilus using gdb to get a trace while producing the errorneous
behavior.

greetings

bernhard

[Joe Areeda (areeda)]

Thanks Bernhard,

No sftp is a different protocol than Samba. Samba connects to Windows shared folder.

But both rely on the network. I've been struggling to reproduce the problem, now I will try with sftp.

I'm starting to think we're seeing network issues. A dropped or corrupted packet could be causing the hang up.

I think a much better action would be for the system to report the error or better yet retry it a few times.

So the problem is how do we prove it or find a way to repeat it.

Tell me about your network. Are you on a wireless or wired connection between the system that hangs and the one with the files?

How reliable is it? What kind of through put are you getting? Are you connecting to a system on your local network or over the Internet?

Perhaps we could get it to happen and then to a ping for a few minutes and see if any packets are lost.

I'll see if I can find a network testing tool that simulates an unreliable network.

Joe

[Bernhard Kleine (bernhard-kleine-gmx)]

My house has standard CAB5 ethernet cables and we connect to a hub to a
router and then via dsl to the internet. these connections are
hardcoded, i do not use dhcp.

the connections to the internet are to two ISP where I (resp. my
customers) have my/their webspace. these are the most prominent isp in
germany 1&1 and strato.

Bandwidth is between 30 kbit/s and 476 kbit/s depending whether my kids
are playing or downloading.

bernhard

[Joe Areeda (areeda)]

Thanks Bernhard,

I will now concentrate on sftp conections over the Internet.

Please note that occasional dropped packets over the Internet is a fact of life, not a comment on the quality of connection (unless it gets bad).

The fact that it sometimes works and sometimes doesn't is what leads me to believe it's a random event that causes it and the network is the "usual suspect". I'm not sure yet but it just seems most likely.

We can estimate the dropped packet rate with ping. Ping the server and let it run for oh 20 min then hit cntrl C. You'll get a report like:

204 packets transmitted, 204 received, 0% packet loss, time 203321ms
rtt min/avg/max/mdev = 23.048/25.333/40.702/2.276 ms

Some routers do not pass the ping (ICMP) packets but if it works for you it will give us an idea of how well it works.

One more thing we can try is the command line sftp. Do you have any problems connecting and doing an ls command. That is how Nautilus gets its list of files to display, pretty much. I'm not sure if there's any difference in error handling.

Joe

[Bernhard Kleine (bernhard-kleine-gmx)]

--- ftp.rzone.de ping statistics ---
2929 packets transmitted, 2924 received, 0% packet loss, time 2934800ms
rtt min/avg/max/mdev = 51.274/122.542/304.807/83.919 ms

;)

Bernhard

[Joe Areeda (areeda)]

hmmm

I got a perfect set for similar time from California
--- ftp.rzone.de ping statistics ---
2575 packets transmitted, 2575 received, 0% packet loss, time 2575395ms
rtt min/avg/max/mdev = 169.253/172.042/459.499/7.316 ms

So when the network is this good do you still see the same behavior. Maybe open one tab but hang on the next.

It sounds like your failure rate is close to 100% with rare ability to open a second tab to the same place. How about that first tab is it similar or does it always open OK?

I'm speculating and searching for any idea of what could be causing this. I have seen it but can't repeat it now. Everything I try works fine for the last 2 days. Same behavior for me with Maverick 10.10 and Natty 11.04

Joe

[Bernhard Kleine (bernhard-kleine-gmx)]

first tab opening is always perfect!

> I'm speculating and searching for any idea of what could be causing
> this. I have seen it but can't repeat it now. Everything I try works
> fine for the last 2 days. Same behavior for me with Maverick 10.10 and
> Natty 11.04
>
> Joe
>

[Joe Areeda (areeda)]

OK.

Like I said, I'm a new member of the bug squad and I've kind of adopted your problem as my cause. So if you want to give up before I do, just say so. I'm convinced there is a problem, perhaps it's just the lack of an error message but hanging with a permanent busy cursor is not the best response.

Just to be clear it works 100% on the first tab and almost 0% on the second but we've seen it work at least once. Right?

Let's try to eliminate the network as the issue.

What happens if you open a local folder like Documents instead of the sftp remote? Can you open multiple tabs to the same folder? If that doesn't work it points to Nautilus or the state it's in. If it does work, it is more evidence that it's something with the network

I just had another thought. It's possible your ISP is limiting the number of sftp connection allowed at one time. We can test this from a Terminal window by using command line sftp then open another tab and doing it again, and perhaps a 3rd and 4th time. I don't know how many connections Nautilus uses per tab it could be more than one for efficiency.

Joe

[Pedro Villavicencio (pedro)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue that you reported is one that should be reproducible with the live environment of the Desktop CD of the stable release - Oneiric Ocelot. It would help us greatly if you could test with it so we can work on getting it fixed. You can find out more about the development release at http://www.ubuntu.com/testing/ . Thanks again and we appreciate your help.

[Launchpad Janitor (janitor)]

[Expired for nautilus (Ubuntu) because there has been no activity for 60 days.]