Re: Switching from CVS to GIT

[Alex Riesen <raa.lkml@gmail.com>]

Brian Dessent, Mon, Oct 15, 2007 21:07:53 +0200:
> Johannes Schindelin wrote:
> > My bigger concerns are the performance and stability.  For example, I had
> > a very annoying problem on one of the machines I am testing msysGit on.
> > The problem was _only_ fixable by deactivating component of Logitech's
> > WebCam driver!  Now, if a user-installable 3rd party program can make my
> > regular git crash, I am scared what more it can do.
> 
> That is because the MSYS runtime is based on an old version of Cygwin,
> and it uses the same dirty tricks to emulate fork.  These tricks rely on
> having a repeatably consistent memory layout for a process each time it
> is started, and when third party tools add hooks that affect the load
> order or otherwise screw with the layout, the fork emulation fails. 
> This is also why it is sometimes necessary to assign unique base
> addresses to all libraries (rebaseall) in order to get fork emulation
> working again.

Hmm... Could the allocation of large contiguous blocks also lock the
system hard? For instance, I avoid starting the test suite on my XP
workstation at work: it locks up hard every time. W2k works.
The system has nothing unusual in it. Well, it has an antivirus
program (which hopefully stopped working after a series of crashes,
which is just as well), an NVidia card with native driver (which is
broken in its own usual ways). Maybe that's enough