On Tue, 2011-08-23 at 14:02 -0400, Muriel wrote:
> On Tue, Aug 23, 2011 at 6:55 PM, Mike McClurg <mike.mcclurg@xxxxxxxxxx> wrote:
> > Ah, that's because we haven't build a 64bit blktap yet ;) We're only
> > supporting 32bit for now, but you may be able to compile it yourself.
> > Here are the source repositories you'll need:
> >
> > http://xenbits.xen.org/gitweb/?p=people/dstodden/blktap.git;a=summary
> > http://xenbits.xen.org/gitweb/?p=people/dstodden/blktap-dkms.git;a=summary
> > http://xenbits.xen.org/gitweb/?p=people/dstodden/blktap-debian.git;a=summary
> >
> > I can't promise this will work on 64bit.
> >
>
> I'm trying to compile blktap on a 64bit system (rhel based). I'm using
> this repo:
> https://github.com/jonludlam/blktap
>
> What is the best / most updated?
http://xenbits.xen.org/gitweb/?p=people/dstodden/blktap.git
presently recommended is xcp/volatile/autotools, to eventually be
xcp/next.
$ sh autogen.sh
$ ./configure
$ make
$ sudo make install
It's still missing some useful stuff from xen-unstable.hg/tools/blktap,
such as block-remus etc, but for vhd/aio etc. it should work fine.
It's sort of beta, beware. Report issues please.
Daniel
> On a 64bit there are a few of problems with various "long long int"
> and other type conversion. These can be put in silence "-Wno-format"
> but I guess that working on the code is the best choice.
>
> In libvhdio.c this does not work:
> 1516 case F_SETLK:
> 1517 case F_SETLKW:
> 1518 case F_GETLK:
> 1519 {
> 1520 struct flock *flk;
> 1521 va_start(args, cmd);
> 1522 flk = va_arg(args, struct flock *);
> 1523 va_end(args);
> 1524 LOG("%s 0x%x lock %p\n", __func__, real_fd, flk);
> 1525 return _std_fcntl(real_fd, cmd, flk);
> 1526 }
> 1527
> 1528 case F_SETLK64:
> 1529 case F_SETLKW64:
> 1530 case F_GETLK64:
> 1531 {
> 1532 struct flock64 *flk;
> 1533 va_start(args, cmd);
> 1534 flk = va_arg(args, struct flock64 *);
> 1535 va_end(args);
> 1536 LOG("%s 0x%x lock64 %p (%p)\n",
> 1537 __func__, real_fd, flk, _std_fcntl);
> 1538 return _std_fcntl(real_fd, cmd, flk);
> 1539 }
>
> Fixed this i can compile but... God knows if it works :D
>
> M.
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