The first time

>> NetBSD/x86 BIOS Boot, Revision 5.10 (from NetBSD 7.99.1)
>> Memory: 631/2096064 k

     1. Boot normally
     2. Boot single user
     3. Disable ACPI
     4. Disable ACPI and SMP
     5. Drop to boot prompt
     6. Boot Xen with 1GB for dom0 (PC)    
     7. Boot Xen with 7GB for dom0 (PC)    
     8. Boot Xen with 7GB for dom0 (PC)    

Choose an option; RETURN for default; SPACE to stop countdown.
Option 1 will be chosen in 0 seconds.     
13975480+559900+463804 [642704+642074]=0xf88fd0
WARNING: couldn't open /etc/entropy-file
WARNING: 1 module failed to load
fatal double fault in supervisor mode
trap type 13 code c027e6ee eip 8 cs 246 eflags 20 cr2 0 ilevel 0 esp ce
curlwp 0xc0ec87a0 pid 0 lid 1 lowest kstack 0xc108e2c0
kernel: user trap double fault, code=0
Stopped in pid 0.1 (system) at  8:      invalid address
db{0}> bt

The second time

Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 7.99.1 (PAE) #0: Sun Oct 12 10:43:37 JST 2014
        root@lets-note-w4:/export/git-work/netbsd-src/sys/arch/i386/compile/obj/PAE
total memory = 8190 MB
avail memory = 8032 MB
kern.module.path=/stand/i386/7.99.1/modules
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
Dell Inc. PowerEdge T105  ((none))
mainbus0 (root)
...

lets-note-w4@makoto 12:46:59/141012(~)% \
cd /export/git-work/netbsd-src/sys/arch/i386/conf/
lets-note-w4@makoto 12:47:13/141012(..i386/conf)% cat PAE
include "arch/i386/conf/GENERIC"
options PAE

repo <REPONAME>
    RW+     =   <KEYNAME>

Typical operation: init -> add -> commit -> remote add origin -> push origin

cd REPONAME
git init
git add .
git commit -m 'initial commit' -a
git remote add origin git@YOUR_SERVER_HOSTNAME:REPONAME
git push origin master:refs/heads/master

First trial as suggested above

modena@makoto 16:13:19/141012(~)% cd /tmp
modena@makoto 00:11:24/141013(/tmp)% mkdir pkgsrc
modena@makoto 00:11:27/141013(/tmp)% cd pkgsrc/
modena@makoto 00:11:30/141013(/tmp/pkgsrc)% git init
Initialized empty Git repository in /tmp/pkgsrc/.git/
modena@makoto 00:11:34/141013(/tmp/pkgsrc)% git add .
modena@makoto 00:11:42/141013(/tmp/pkgsrc)% git commit -m 'Make empty repository (init)' -a 
On branch master

Initial commit

nothing to commit
modena@makoto 00:12:01/141013(/tmp/pkgsrc)% git remote add origin git@HOSTNAME:pkgsrc
modena@makoto 00:12:32/141013(/tmp/pkgsrc)% git push origin master:refs/heads/master 
error: src refspec master does not match any.
error: failed to push some refs to 'git@HOSTNAME:pkgsrc'

(Try adding dummy)

modena@makoto 00:14:25/141013(/tmp/pkgsrc)% touch dummy
modena@makoto 00:17:12/141013(/tmp/pkgsrc)% git add dummy
modena@makoto 00:17:16/141013(/tmp/pkgsrc)% git commit -m 'Add zero size dummy' .
[master (root-commit) 34677d9] Add zero size dummy
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 dummy
modena@makoto 00:17:49/141013(/tmp/pkgsrc)% git push origin master:refs/heads/master
Counting objects: 3, done.
Writing objects: 100% (3/3), 213 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
To git@HOSTNAME:pkgsrc
 * [new branch]      master -> master

Make --bare clone (this may be wrong ?, I did this certainly and later fine)

makoto 00:23:59/141013(/tmp)% git clone --bare HOSTNAMEgit:pkgsrc
Cloning into bare repository 'pkgsrc.git'...
Enter passphrase for key '/home/makoto/.ssh/id_rsa': 
remote: Counting objects: 3, done.
remote: Total 3 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (3/3), done.
Checking connectivity... done.

Then mirror --bare repository to your server

@makoto 00:25:34/141013(..usr/pkgsrc)% git push --mirror  HOSTNAMEgit:pkgsrc
Enter passphrase for key '/home/makoto/.ssh/id_rsa': 
Counting objects: 133350, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (128546/128546), done.
Writing objects: 100% (133350/133350), 65.30 MiB | 2.39 MiB/s, done.
Total 133350 (delta 11337), reused 0 (delta 0)
To HOSTNAMEgit:pkgsrc
 + 34677d9...f8e3a44 master -> master (forced update)
 * [new branch]      mef -> mef
@makoto 00:41:10/141013(..usr/pkgsrc)%