On Tue, Feb 11, 2014 at 07:56:50PM +0000, Wojciech A. Koszek wrote:
> On Tue, Feb 11, 2014 at 12:11:09AM +0100, Juergen Lock wrote:
> > On Mon, Feb 10, 2014 at 11:06:27AM +0000, Bjoern A. Zeeb wrote:
> > > 
> > > On 10 Feb 2014, at 04:18 , Wojciech A. Koszek <wkos...@freebsd.org> wrote:
> > > 
> > > > On nie, lut 09, 2014 at 02:59:06 +0100, Juergen Lock wrote:
> > > >> On Sun, Feb 09, 2014 at 02:56:24AM +0000, Wojciech A. Koszek wrote:
> > > >>> On sob, lut 08, 2014 at 09:45:46 +0100, Juergen Lock wrote:
> > > >>>> On Fri, Feb 07, 2014 at 08:49:28PM +0000, Wojciech A. Koszek wrote:
> > > >>>>> On pi??, lut 07, 2014 at 09:12:08 +0100, Juergen Lock wrote:
> > > >>>>>> Hi!
> > > >>>>>> 
> > > >>>>>> This came up on irc so I tried to build a linux libusb port (before
> > > >>>>>> I learned about ports/146895), mine uses linux_base-gentoo-stage3
> > > >>>>>> like linux_kdump with a src/lib/libusb head snapshot so it's more
> > > >>>>>> up to date than wkoszek's build (ports/146895), and it's really
> > > >>>>>> easy to update it again.  Also maybe it can be used as linux
> > > >>>>>> libusb-1.0.so too; I didn't actually test it tho.
> > > >>>>>> 
> > > >>>>>> Should this be committed?  Is wkoszek's version better since it
> > > >>>>>> also builds on < 10.x?  Comments welcome...
> > > >>>>>> 
> > > >>>>>> wkoszek's version:
> > > >>>>>> 
> > > >>>>>>    http://www.freebsd.org/cgi/query-pr.cgi?pr=146895
> > > >>>>>> 
> > > >>>>>> Mine:
> > > >>>>>> 
> > > >>>>>>    http://people.freebsd.org/~nox/tmp/linux_libusb.shar
> > > >>>>>> 
> > > >>>>>> Distfile:
> > > >>>>>> 
> > > >>>>>>    
> > > >>>>>> http://people.freebsd.org/~nox/tmp/distfiles/linux_libusb-11.0r261448.tar.bz2
> > > >>>>>> 
> > > >>>>>> 10/amd64 package:
> > > >>>>>> 
> > > >>>>>>    
> > > >>>>>> http://people.freebsd.org/~nox/tmp/packages/10amd64/linux_libusb-11.0r261448.txz
> > > >>>>>> 
> > > >>>>>> (built via:
> > > >>>>>> 
> > > >>>>>>    poudriere bulk -v -j 10amd64 -p custom devel/linux_libusb
> > > >>>>>> 
> > > >>>>>> - btw for some reason the dependency 
> > > >>>>>> emulators/linux_base-gentoo-stage3
> > > >>>>>> doesn't build for 10i386 in poudriere bulk, I get a pkg segfault.  
> > > >>>>>> bapt
> > > >>>>>> Cc'd...)
> > > >>>>>> 
> > > >>>>> 
> > > >>>>> Juergen,
> > > >>>> Hi!
> > > >>>>> 
> > > >>>>> What would be the reason for this update?
> > > >>>>> 
> > > >>>>> My stuff may be out of date, but it was all tested and working. I 
> > > >>>>> verified
> > > >>>>> it with Linux'ish lsusb(1) and USB-based FPGA JTAG programmer, for 
> > > >>>>> which
> > > >>>>> this stuff was written.
> > > >>>>> 
> > > >>>> I was just thinking an updated version may be useful, but if it's
> > > >>>> already working for everyone maybe less so...
> > > >>>> 
> > > >>>> Or would it work as a linux libusb-1.0.so too?  I know the libusb 1.0
> > > >>>> stuff added some functions since 9.x at least... maybe hps would know
> > > >>>> (Cc'd.)
> > > >>>> 
> > > >>> 
> > > >>> Juergen,
> > > >>> 
> > > >>> I think this package is useful and is looking for maintainer, so if 
> > > >>> you have
> > > >>> time and energy, I'm OK with upgrading it, but I suggest testing it 
> > > >>> first.
> > > >>> Bjoern might be interested too.
> > > >>> 
> > > >> You mean bz@ ?  Cc'd.  I tried testing lsusb from debian sid but it 
> > > >> printed
> > > >> nothing, neither with my nor with your older version, but maybe it's 
> > > >> just
> > > >> `too new' for our current linuxolator.
> > > > 
> > > > I assume you have at least 1 USB device while trying this. I don't 
> > > > remember
> > > > exactly, but while trying within Linuxolator, you may need devfs/procfs 
> > > > to
> > > > be mounted under Linuxolator's root directory.
> > > 
> > > My understanding and from looking at trace is that if we cannot find it 
> > > in /compat/linux we ale search in /; so no need for an extra mount unless 
> > > maybe you run chrooted.
> > > 
> > > 
> > > > So you'll have to figure this out.
> > > > 
> > > > Does it return with 0 exit code?
> > > > 
> > > > If not, lsusb should be simple enough to let you place printf() all 
> > > > over the
> > > > place and understand out when it's failing. 
> > > 
> > > For me the problem was a clock_gettime() call in the libusb which my 
> > > glibc did not provide.   That made all things fail (silently) until I 
> > > used linux ?rtld" tracing to see the unresolved symbol from libusb/the 
> > > commercial 3rd party software dynamically loading libusb.
> > > 
> > And my linux_kdump ends like this:
> > 
> >  35607 lsusb    CALL  munmap(0x28247000,0x8000)
> >  35607 lsusb    RET   munmap 0
> >  35607 lsusb    CALL  linux_open(0x28090c31,0,0x28081e00)
> >  35607 lsusb    NAMI  "/compat/linux/dev/usbctl"
> >  35607 lsusb    NAMI  "/dev/usbctl"
> >  35607 lsusb    RET   linux_open 3
> >  35607 lsusb    CALL  linux_ioctl(0x3,0xffe5 ,0xffffc5d8)
> >  35607 lsusb    RET   linux_ioctl 0
> >  35607 lsusb    CALL  close(0x3)
> >  35607 lsusb    RET   close 0
> >  35607 lsusb    CALL  linux_exit_group(0x1)
> >  35607 lsusb    UNKNOWN(11)
> > 
> > and the exit code is 1, so I guess it's failing on an unhandled
> > syscall or something like that.
> 
> Juergen
> 
> Can you send the full trace with all eventual child processes? If you could
> copy&paste:
> 
>       open libusb
>       for each bus
>               for each device
>                       open device
> 
> to a separate program, we could make it libusb/Linuxolator regression test.
> This would also help us match ptrace<->line number output.
> 
There are no child processes and it seems it doesn't even get to
enumerate buses, i.e. the /dev/usbctl above is the only usb-related
thing it opens.  I've put the full kdump here:

        http://people.freebsd.org/~nox/tmp/lsusb.kdump.txt.xz

(don't be surprised about the libz.so.1 path, the one from fc10
was too old so I had to point LD_LIBRARY_PATH at debian's one
I copied.)

> Which FreeBSD are you using?
> 
 10.0-r.

> This may indicate some relationship with
> 
>       http://www.freebsd.org/cgi/query-pr.cgi?pr=141439
> 
 Well at least 10.0 should have that fix already.

 Maybe I can find an older (fc10?) lsusb later...

 Thanx,
        Juergen
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