Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 24 Nov 2014 13:27:33 +0100
From:      Ulrich Grey <usenet@ulrich-grey.de>
To:        Ulrich Grey <usenet@ulrich-grey.de>
Cc:        freebsd-arm@freebsd.org, Rui Paulo <rpaulo@me.com>
Subject:   Test Run with Alternative pmap Implementation
Message-ID:  <20141124132733.4e96b906f0d1ab69969dddd9@ulrich-grey.de>
In-Reply-To: <20141121115941.54d4e36b103341c3adf7eb36@ulrich-grey.de>
References:  <20141113125236.b16cd4e5f0e339eac0494cd4@ulrich-grey.de> <C6FED1A5-490C-47BE-B071-484271ED370E@me.com> <20141115143444.5ad037548e06f289d2532fb7@ulrich-grey.de> <CAFHCsPUJ1HhLqAjitPg6mPzhMYSui64Xmu4omO7Pkp%2B0kPZnAA@mail.gmail.com> <20141119225903.81fbbc7809093a0e6e0de9d5@ulrich-grey.de> <CAFHCsPXnSFY_X-O73M%2Bh0xO_XJ0cTmkRwtu-o4omPndnfbEhmg@mail.gmail.com> <20141120151900.a68c6d8316b96a62cb65d17a@ulrich-grey.de> <CAFHCsPWTnU7j0MC7YSHFFDE97%2B%2BBrnkJKGnK9zkxVGemaa6nAw@mail.gmail.com> <20141121115941.54d4e36b103341c3adf7eb36@ulrich-grey.de>

next in thread | previous in thread | raw e-mail | index | archive | help
Hello,

as a starting point I have build an image (crochet, wandboard-quad) with
the source tree from here (751adfd(master)):

https://github.com/strejda/freebsd

Then I build the kernel with new pmap and rebuild the whole systen.
The system I used for the test run is entirely build on the
wandboard-quad.

The kernel is build with debugging enabled:

# Debugging support.  Always need this:
options         KDB     # Enable kernel debugger support.
# For minimum debugger support use KDB_TRACE, for interactive use DDB.
options         KDB_TRACE    # Print a stack trace for a panic.
options         DDB                     # Support DDB.
# For full debugger support use this instead:
#options        GDB                     # Support remote GDB.
# Other debugging options...
makeoptions     DEBUG=-g                # Build kernel with gdb(1)
debug symbols options         ALT_BREAK_TO_DEBUGGER 
# Use <CR><tilde><ctrl-b> to enter debugger.
#options        DEBUG
#options        DEADLKRES               # Enable the deadlock resolver
options         INVARIANTS              # Enable calls of extra sanity
checking
options         INVARIANT_SUPPORT       # Extra sanity checks
of internal structures, required by INVARIANTS
options DIAGNOSTIC
#options        WITNESS                 # Enable checks to detect
#deadlocks and cycles
#

I have added These options:

makeoptions     WITHOUT_MODULES="ispfw"    # !!
wihout this I get a compile error, if I build the kernel on the
wandboard-quad. If I compile an image with crochet, there are no
problems.
#
options     ARM_NEW_PMAP # new pmap
options     NKPT2PG=64   # minimum =21 on my device
#
Then I had to change two files (advice from Svatopluk
Kraus):

#
sys/arm/include/vm.h

change following line:

#define VM_MEMATTR_UNCACHEABLE VM_MEMATTR_NOCACHE

to

#define VM_MEMATTR_UNCACHEABLE VM_MEMATTR_SO

#
sys/arm/arm/pmap-v6-new.c

put the following three lines in
pmap_pinit() under comment:

2111       vm_page_t m;

2127       m = PHYS_TO_VM_PAGE(vtophys(pmap->pm_pt2tab));
2128       m->pindex =  pte1_index((vm_offset_t)PT2MAP);

These changes are the result of some testruns.
#
As a test I did:
#
root@quad:/usr/src # make -j20 buildworld
--- buildworld ---
--- buildworld_prologue ---
--------------------------------------------------------------
>>> World build started on Sun Nov 23 20:30:52 UTC 2014
--------------------------------------------------------------
#
--- buildworld_epilogue ---
--------------------------------------------------------------
>>> World build completed on Mon Nov 24 05:10:11 UTC 2014
--------------------------------------------------------------
#
root@quad:/usr/home/gwgpi # sysctl vm.pmap.
vm.pmap.pv_entry_max: 1744848
vm.pmap.shpgperproc: 200
vm.pmap.nkpt2pg: 64
vm.pmap.sp_enabled: 1
vm.pmap.pte1.demotions: 5662
vm.pmap.pte1.mappings: 106
vm.pmap.pte1.p_failures: 193942
vm.pmap.pte1.promotions: 71377
vm.pmap.pv_entry_count: 15222
vm.pmap.pc_chunk_count: 62
vm.pmap.pc_chunk_allocs: 3013814
vm.pmap.pc_chunk_frees: 3013752
vm.pmap.pc_chunk_tryfail: 0
vm.pmap.pv_entry_frees: 943580587
vm.pmap.pv_entry_allocs: 943595809
vm.pmap.pv_entry_spare: 5610
root@quad:/usr/home/gwgpi # 
#
root@quad:/usr/home/gwgpi # uname -a
FreeBSD quad 11.0-CURRENT FreeBSD 11.0-CURRENT #0 751adfd
(master)-dirty: Sun Nov 23 02:42:02 UTC 2014
root@quad:/usr/local/DEVEL/obj/usr/local/DEVEL/STREJDA/freebsd/sys/WANDBOARD-QUAD
arm
#
Here are some load averages from top -P I watched during compilation:

22.03  19,60  16,44
20,49  20,58  20,18
23,51  21,80  20,78

hw.imx6.temperature shows 46.9 C
The board has a cooling fin but no case.

regards

Ulrich
-----------------------------------------



On Fri, 21 Nov 2014 11:59:41 +0100
Ulrich Grey <usenet@ulrich-grey.de> wrote:

> Now it works!
> 
> I have cloned the source tree from here:
> 
> https://github.com/strejda/freebsd
> 
> With crochet I have compiled an Image for Wandboard-Quad.
> This Image started without problems. 
> To use the new pmap I had to add:
> 
> options     ARM_NEW_PMAP
> 
> to the file src/sys/arm/conf/IMX6
> and to recompile the kernel.
> 
> This kernel was not bootable, it crashes immediately.
> I had to add
> 
> options     NKPT2PG=64 (advice from Svatopluk Kraus)*
> 
> to the kernel config file and recompile.
> This time the kernel booted without problems.
> 
> root@quad:/usr/src # uname -a
> FreeBSD quad 11.0-CURRENT FreeBSD 11.0-CURRENT #2 751adfd
> (master)-dirty: Thu Nov 20 23:41:14 UTC 2014
> gwgpi@quad:/usr/local/DEVEL/obj/usr/local/DEVEL/STREJDA/freebsd/sys/WANDBOARD-QUAD
> arm
> 
> root@quad:/usr/src # sysctl vm.pmap.
> vm.pmap.pv_entry_max: 1744848
> vm.pmap.shpgperproc: 200
> vm.pmap.nkpt2pg: 64
> vm.pmap.sp_enabled: 1
> vm.pmap.pte1.demotions: 146
> vm.pmap.pte1.mappings: 0
> vm.pmap.pte1.p_failures: 8089
> vm.pmap.pte1.promotions: 2815
> vm.pmap.pv_entry_count: 65363
> vm.pmap.pc_chunk_count: 247
> vm.pmap.pc_chunk_allocs: 177924
> vm.pmap.pc_chunk_frees: 177677
> vm.pmap.pc_chunk_tryfail: 0
> vm.pmap.pv_entry_frees: 54109068
> vm.pmap.pv_entry_allocs: 54174439
> vm.pmap.pv_entry_spare: 17620
> 
> In /usr/src I did:
> 
> make -j10 buildworld
> 
> and it accomplished without crash.
> 
> Thank you to all for the advice
> Ulrich
> ---
> * You can experiment with the number. Explanation can be
> found in sys/arm/include/pmap-v6.h (advice from Svatopluk Kraus).
> ------------------------------------------------------------------
> On Thu, 20 Nov 2014 17:06:16 +0100
> Svatopluk Kraus <onwahe@gmail.com> wrote:
> 
> > Are you running the kernel with our pmap? If you type "sysctl
> > vm.pmap", you should get something like this:
> > 
> > root@pandaboard:~ # sysctl vm.pmap
> > vm.pmap.pv_entry_max: 1488480
> > vm.pmap.shpgperproc: 200
> > vm.pmap.nkpt2pg: 10
> > vm.pmap.sp_enabled: 1
> > vm.pmap.pte1.demotions: 0
> > vm.pmap.pte1.mappings: 0
> > vm.pmap.pte1.p_failures: 44
> > vm.pmap.pte1.promotions: 9
> > vm.pmap.pv_entry_count: 11082
> > vm.pmap.pc_chunk_count: 42
> > vm.pmap.pc_chunk_allocs: 2882
> > vm.pmap.pc_chunk_frees: 2840
> > vm.pmap.pc_chunk_tryfail: 0
> > vm.pmap.pv_entry_frees: 534924
> > vm.pmap.pv_entry_allocs: 546006
> > vm.pmap.pv_entry_spare: 3030
> > 
> > 
> > Svatopluk Kraus
> > 
> > 
> > 
> > On Thu, Nov 20, 2014 at 3:19 PM, Ulrich Grey <usenet@ulrich-grey.de>
> > wrote:
> > 
> > > Hello,
> > >
> > > here the second try:
> > >
> > > I added this two lines in src/sys/arm/conf/IMX6
> > >
> > > makeoptions     WITHOUT_MODULES="ispfw"
> > > without this I got a compile error in the past.
> > >
> > > options         ARM_NEW_PMAP
> > >
> > > I have build the kernel without problems and rebooted.
> > > Superpages are enabled.
> > >
> > > This is the running kernel:
> > >
> > > root@quad:~ # uname -a
> > > FreeBSD quad 11.0-CURRENT FreeBSD 11.0-CURRENT #0 751adfd
> > > (master)-dirty: Wed Nov 19 17:15:31 UTC 2014
> > > gwgpi@quad
> > > :/usr/local/DEVEL/obj/usr/local/DEVEL/STREJDA/freebsd/sys/WANDBOARD-QUAD
> > > arm
> > >
> > > The userland is on revision: r274634M
> > >
> > > Then I went to /usr/src and build your source tree:
> > >
> > > make -j10 buildworld
> > >
> > > After some hours the compilation stopped, but no crash occurs (an
> > > endless loop?):
> > >
> > > cc  -fpic -DPIC  -O -pipe
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/include
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../include
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/lib <A5><A5>c/arm -DNLS
> > > -D__DBINTERFACE_PRIVATE
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../contrib/gdtoa
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../contrib/libc-vis
> > > -DINET6 -I/
> > > <A5><A5>usr/obj/usr/local/DEVEL/STREJDA/freebsd/lib/libc
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/resolv -D_ACL_PRIVATE
> > > -DPOSIX_MISTAKE -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../li
> > > <A5><A5>bmd
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../contrib/jemalloc/include
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../contrib/tzcode/stdtime
> > > -I/usr/local/DEVEL/STREJDA/f <A5><A5>reebsd/lib/libc/stdtime
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/locale -DBROKEN_DES
> > > -DPORTMAP -DDES_BUILTIN
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/rpc
> > > -I/usr/local/DEVEL/
> > > <A5><A5>STREJDA/freebsd/lib/libc/arm/softfloat
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/softfloat
> > > -DSOFTFLOAT_FOR_GCC -DYP -DNS_CACHING -DSYMBOL_VERSIONING
> > > -std=gnu99 -Wsystem-headers <A5><A5>-Werror -Wall -Wno-format-y2k
> > > -Wno-uninitialized -Wno-pointer-sign -Wno-empty-body
> > > -Wno-string-plus-int -Wno-unused-const-variable
> > > -Wno-tautological-compare -Wno-unused-value -Wno-
> > > <A5><A5>parentheses-equality -Wno-unused-function
> > > -Wno-enum-conversion -Wno-switch -Wno-switch-enum
> > > -Wno-knr-promoted-parameter -Qunused-arguments -c nslexer.c -o
> > > nslexer.So
> > >  --- libc.so.7 ---
> > > --- libc_pic.a ---
> > > building shared library libc.so.7
> > > building special pic c library
> > > ranlib -D libc_pic.a
> > >
> > > I waited some hours, but nothing happened anymore.
> > >
> > > root@quad:~ # ps auxww
> > > USER         PID  %CPU %MEM   VSZ   RSS TT  STAT STARTED
> > > TIME COMMAND
> > >
> > > root          10 295.9  0.5     0 10488  -  RL    1:16AM
> > > 1121:36.09 [idle]
> > >
> > > root       92318 100.0  1.3 35396 27460  0  R     3:34AM
> > > 344:30.76 cc -O -pipe
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/include
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../include
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/arm -DNLS
> > > -D__DBINTERFACE_PRIVATE
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../contrib/gdtoa
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../contrib/libc-vis
> > > -DINET6 -I/usr/obj/usr/local/DEVEL/STREJDA/freebsd/lib/libc
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/resolv -D_ACL_PRIVATE
> > > -DPOSIX_MISTAKE
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../libmd
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../contrib/jemalloc/include
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/../../contrib/tzcode/stdtime
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/stdtime
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/locale -DBROKEN_DES
> > > -DPORTMAP -DDES_BUILTIN
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/rpc
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/arm/softfloat
> > > -I/usr/local/DEVEL/STREJDA/freebsd/lib/libc/softfloat
> > > -DSOFTFLOAT_FOR_GCC -DYP -DNS_CACHING -DSYMBOL_VERSIONING
> > > -std=gnu99 -Wsystem-headers -Werror -Wall -Wno-format-y2k
> > > -Wno-uninitialized -Wno-pointer-sign -Wno-empty-body
> > > -Wno-string-plus-int -Wno-unused-const-variable
> > > -Wno-tautological-compare -Wno-unused-value
> > > -Wno-parentheses-equality -Wno-unused-function
> > > -Wno-enum-conversion -Wno-switch -Wno-switch-enum
> > > -Wno-knr-promoted-parameter -Qunused-arguments -c munlock.S
> > >
> > > root          16   0.2  0.5     0 10464  -  DL    1:16AM
> > > 1:54.06 [syncer]
> > >
> > > root       97452   0.2  0.1 11580  2996  1  S+    9:14AM
> > > 0:01.34 top -P
> > >
> > > root           0   0.0  0.5     0 10488  -  DLs   1:16AM
> > > 0:00.19 [kernel]
> > >
> > > root           1   0.0  0.0  9296   884  -  ILs   1:16AM
> > > 0:00.05 /sbin/init --
> > >
> > > root           2   0.0  0.5     0 10472  -  DL    1:16AM
> > > 7:43.52 [cam]
> > >
> > > root           3   0.0  0.5     0 10464  -  DL    1:16AM
> > > 0:00.00 [sctp_iterator]
> > >
> > > root           4   0.0  0.5     0 10464  -  DL    1:16AM
> > > 0:00.21 [mmcsd0: mmc/sd card]
> > >
> > > root           5   0.0  0.5     0 10464  -  DL    1:16AM
> > > 0:00.26 [mmcsd1: mmc/sd card]
> > >
> > > root           6   0.0  0.5     0 10464  -  DL    1:16AM
> > > 0:12.04 [pagedaemon]
> > >
> > > root           7   0.0  0.5     0 10464  -  DL    1:16AM
> > > 0:00.00 [vmdaemon]
> > >
> > > root           8   0.0  0.5     0 10464  -  DL    1:16AM
> > > 0:00.00 [pagezero]
> > >
> > > root           9   0.0  0.5     0 10472  -  DL    1:16AM
> > > 0:01.06 [bufdaemon]
> > >
> > > root          11   0.0  0.5     0 10576  -  WL    1:16AM
> > > 50:52.07 [intr]
> > >
> > > root          12   0.0  0.5     0 10480  -  DL    1:16AM
> > > 5:42.76 [geom]
> > >
> > > root          13   0.0  0.5     0 10464  -  DL    1:16AM
> > > 2:14.70 [rand_harvestq]
> > >
> > > root          14   0.0  0.5     0 10520  -  DL    1:16AM
> > > 54:25.17 [usb]
> > >
> > > root          15   0.0  0.5     0 10464  -  DL    1:16AM
> > > 0:03.81 [vnlru]
> > >
> > > root         262   0.0  0.1  8896  1048  -  Ss    1:17AM
> > > 0:00.05 /sbin/devd
> > >
> > > root         347   0.0  0.1 10224  1528  -  Ss    1:17AM
> > > 0:00.18 /usr/sbin/syslogd -ss
> > >
> > > root         440   0.0  0.1 10468  1216  -  Is    1:17AM
> > > 0:00.01 casperd: zygote (casperd)
> > >
> > > root         441   0.0  0.1 10468  1292  -  Is    1:17AM
> > > 0:00.02 /sbin/casperd
> > >
> > > messagebus   475   0.0  0.1 10780  1552  -  Is    1:17AM
> > > 0:00.01 /usr/local/bin/dbus-daemon --system
> > >
> > > root         511   0.0  0.1 12712  2604  -  Ss    1:17AM
> > > 0:02.21 /usr/sbin/ntpd -g -c /etc/ntp.conf -p /var/run/ntpd.pid
> > > -f /var/db/ntpd.drift
> > >
> > > root         541   0.0  0.1 15836  3012  -  Is    1:17AM
> > > 0:00.02 /usr/sbin/sshd
> > >
> > > root         545   0.0  0.1 10300  1784  -  Ss    1:17AM
> > > 0:00.43 /usr/sbin/cron -s
> > >
> > > root         601   0.0  0.3 18904  6452  -  Is    1:19AM
> > > 0:00.13 sshd: gwgpi [priv] (sshd)
> > >
> > > gwgpi        604   0.0  0.2 18904  4032  -  I     1:19AM
> > > 2:23.04 sshd: gwgpi@pts/0 (sshd)
> > >
> > > root         878   0.0  0.3 18904 6540 <3%2018904%20%206540>  -
> > > Is 1:20AM    0:00.18
> > > sshd: gwgpi [priv] (sshd)
> > >
> > > gwgpi        896   0.0  0.2 18904  4032  -  S     1:20AM
> > > 0:01.03 sshd: gwgpi@pts/1 (sshd)
> > >
> > > root         590   0.0  0.1 11208  2864 u0  Is    1:17AM
> > > 0:00.10 login [pam] (login)
> > >
> > > root         591   0.0  0.2 11208  4472 u0  S     1:17AM
> > > 0:00.21 -csh (csh)
> > >
> > > root       97457   0.0  0.1 10448  2084 u0  R+    9:21AM
> > > 0:00.01 ps auxww
> > >
> > > gwgpi        605   0.0  0.2 11208  3768  0  Is    1:19AM
> > > 0:00.07 -csh (csh)
> > >
> > > root         607   0.0  0.1 11200  2708  0  I     1:19AM
> > > 0:00.08 su
> > >
> > > root         608   0.0  0.2 11208  3764  0  I     1:19AM
> > > 0:00.08 _su (csh)
> > >
> > > root         613   0.0  0.1  8944  1120  0  S+    1:20AM
> > > 0:03.32 make -j10 buildworld
> > >
> > > root         618   0.0  0.1 10740  2288  0  I     1:20AM
> > > 0:00.01 sh -ev
> > >
> > > root         619   0.0  0.1  8944  1648  0  S     1:20AM
> > > 0:02.76 make -m /usr/local/DEVEL/STREJDA/freebsd/share/mk -f
> > > Makefile.inc1 TARGET=arm TARGET_ARCH=armv6 buildworld
> > >
> > > root       83869   0.0  0.1 10740  2340  0  I     3:23AM
> > > 0:00.02 sh -ev
> > >
> > > root       83870   0.0  0.1  8944  1724  0  S     3:23AM
> > > 0:00.94 make -f Makefile.inc1
> > > DESTDIR=/usr/obj/usr/local/DEVEL/STREJDA/freebsd/tmp -DNO_FSCHG
> > > MK_HTML=no MK_INFO=no -DNO_LINT MK_MAN=no MK_PROFILE=no
> > > MK_TESTS=no MK_TESTS_SUPPORT=yes libraries
> > >
> > > root       83883   0.0  0.1 10740  2288  0  I     3:23AM
> > > 0:00.01 sh -ev
> > >
> > > root       84734   0.0  0.1  8944  1724  0  S     3:24AM
> > > 0:01.01 make -f Makefile.inc1 _startup_libs
> > >
> > > root       84750   0.0  0.1 10740  2340  0  I     3:24AM
> > > 0:00.04 sh -ev
> > >
> > > root       86840   0.0  1.2 29424 24084  0  S     3:28AM
> > > 0:15.96 make MK_TESTS=no DIRPRFX=lib/libc/ all
> > >
> > > root       92313   0.0  0.1 10740  2284  0  I     3:34AM
> > > 0:00.09 sh -ev
> > >
> > > gwgpi        897   0.0  0.2 11208  3768  1  Is    1:20AM
> > > 0:00.08 -csh (csh)
> > >
> > > root         906   0.0  0.1 11200  2708  1  I     1:20AM
> > > 0:00.11 su
> > >
> > > root         945   0.0  0.2 11208  3764  1  I     1:20AM
> > > 0:00.21 _su (csh)
> > >
> > > root@quad:~ # sysctl vm.pmap.
> > > vm.pmap.sp_enabled: 1
> > > vm.pmap.pv_entry_count: 5691
> > > vm.pmap.pv_entry_max: 1744848
> > > vm.pmap.shpgperproc: 200
> > > vm.pmap.section.demotions: 3
> > > vm.pmap.section.mappings: 0
> > > vm.pmap.section.p_failures: 35
> > > vm.pmap.section.promotions: 8
> > >
> > > --
> > > regards
> > > Ulrich
> > > ----------------------------------
> > >  On Thu, 20 Nov 2014 00:04:38 +0100
> > > Svatopluk Kraus <onwahe@gmail.com> wrote:
> > >
> > > > On Wed, Nov 19, 2014 at 10:59 PM, Ulrich Grey
> > > > <usenet@ulrich-grey.de> wrote:
> > > >
> > > > > Thank you for the offer, I have tried it.
> > > > >
> > > > > After I had cloned your repository I have added 2 lines to
> > > > > src/sys/arm/conf/IMX6:
> > > > >
> > > > > makeoptions     WITHOUT_MODULES="ispfw" # compile error
> > > > > makeoptions     ARM_NEW_PMAP="yes" # is that ok ?
> > > > >
> > > > >
> > > > Add this line to sys/arm/conf/IMX6 file:
> > > >
> > > > options ARM_NEW_PMAP
> > > >
> > > > Svatopluk Kraus
> > >
> _______________________________________________
> freebsd-arm@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-arm
> To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20141124132733.4e96b906f0d1ab69969dddd9>