Am Freitag 24 April 2009 14:26:59 schrieb Maróy Ákos:
> Oliver,
>
> >> # cat /sys/kernel/debug/usbmon/1u
> >
> > Of which kernel was that trace?
>
> this is ubuntu 8.04's 2.6.24-23-generic kernel - whatever that means:
>
> $ uname -a
> Linux polo 2.6.24-23-generic #1 SMP Wed Apr 1 21:43:24 UTC 2009 x86_64
> GNU/Linux
>
>
> > PS: Can you send me the programm you use to test this?
>
> sure. please see the application attached, in source and binary form,
> and also a makefile (requires boost 1.38.0 to compile).
It works for me.
writev(6, [{"\6\n\0\0\0\0", 6}], 1) = 6
write(2, "written bytes: ", 15written bytes: ) = 15
write(2, "6", 16) = 1
write(2, "\n", 1
) = 1
readv(6, 0x7ffffa9fe1a0, 1) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=6, events=POLLIN}], 1, -1) = 1 ([{fd=6, revents=POLLIN}])
readv(6, [{"\6\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 64}], 1) = 6
Can you test whether the hang is specific to a test device you are using?
Regards
Oliver
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