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Re: TSVNCacheWindow locks up Explorer in 1.4.8

From: John Lundbäck <john.lundback_at_arcticus-systems.com>
Date: Fri, 22 Feb 2008 16:14:27 +0100

As a follow up to this issue I've tried with setting up a local user
with no administrator privileges on my laptop running XP-SP2 with all
patches, same Windows installation procedure as on my stationary.

With a local user account Tortoise does not lockup Explorer although I
had troubles with another local account in which TSVNCache repeatably
crashes and restarts and crashes and so on infinitum. Fix was to wipe
the entire account settings and login again and problems went away with
all the users settings of which he was not too happy about to loose.

Now, I feel that the code should be more defensive so that no
assumptions ever are made, thus extensively testing every possible error
state is a must, degraded functionality is acceptable but crashes not so.

And second, is there any logging built into Tortoise to enable to see
where this freezing action happens?

Debugging this I feel will be a nightmare since I need to be admin to
compile and install the dlls but need to be in my normal user account to
debug this and since explorer will freeze right away, well you get the


John Lundbäck wrote:
> Hi all,
> I've reported this problem with 1.4.6 but the problem alas still
> persists in 1.4.8.
> Here is my case:
> Using 1.4.5 the TSVNCache works as expected eg it scans through our
> local working copies of our versioned projects. We have about 5000-10000
> files in our projects of different sorts in a hierarchical composition.
> However, when I tried to upgrade to 1.4.8 by first uninstall previous
> version, reboot, remove all local working copies from disks, install
> 1.4.8 and reboot.
> Things did not work well when I logged back in. Explorer almost
> immediately freezes and even killing explorer process does not cure this
> freeze. Only by logging out which make the logout process waiting for
> the TSVNCacheWindow process to die which it does not, but by killing it
> in the logout process I can logout. And this mess continues when I login
> again.
> First note: We as developers do NOT have administrator privileges, this
> may be one warning bell because when I do login with administrator
> privileges all is working well. This is not good news since our security
> require users not to have such privileges.
> Second note: I can jumpstart the 1.4.8 by removing all my user registry
> entries concerning Tortoise and working copies and then get a new set
> from our SVN server. This works as long as I do not restart my machine.
> If I do so, well back to square 1. If I logout and back in no problems.
> Third note: We use roaming profiles which are deleted whenever a user
> logsout or restart the machine.
> Fourth note: Although I can get 1.4.8 to work by disabling the cache, it
> feels that the whole point of the explorer integration subsides to
> almost nothing then, the feedback you get from the overlay icons are
> invaluable in my opinion.
> Have anyone any ideas why the behavior of the cache have changed in such
> dramatical way from 1.4.5? Is the forthcoming 1.5 version a better bet
> than bashing my head in the wall with the 1.4. series?
> Regards
> /John

John Lundbäck               Tel:      +46 8 580 311 04
Arcticus Systems AB         Fax:      +46 8 580 365 60
Datavägen 9A                Celluar:  +46 70 747 08 14
Box 530                     E-Mail:   john.lundback_at_arcticus-systems.com
S 175 26 Järfälla,SWEDEN    Homepage: http://www.arcticus-systems.com
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Received on 2008-02-22 16:14:38 CET

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