Re: Prashant's oddly hanging build ...

Drat, sent this early with ctrl-enter:

On Wed, 2013-03-06 at 11:49 +0000, Michael Meeks wrote:
>       A new thread - 31830 - which does exactly nothing except fiddling with
> futexes:
>
> 31830 1362225668.627412 futex(0x2b15cd5c3360, FUTEX_WAKE_PRIVATE, 1) = 0
> 31830 1362225668.627477 futex(0x2b15cd5c35cc, FUTEX_WAIT_BITSET_PRIVATE|
> FUTEX_CLOCK_REALTIME, 2663, {1362225678, 627393000}, ffffffff) = -1
> ETIMEDOUT (Connection timed out)
        for the rest of it's life - and I assume is the ultimate cause of the
gnumake hang in wait() - it's waiting for this child to be cleaned up.

        meanwhile the libtest_sw_filters_test.so seems to go into a
slow-spin-rinse cycle of endless ;-)

31829 1362212360.132295 pread(16,  <unfinished ...>
31829 1362212360.132314 <... pread resumed> "", 4096, 35) = 0

        Which I would tend to not expect either. Endless short reads from
socket 16 which is apparently an XML file containing only an XML header:

31829 1362212360.126681 open("/tmp/kDxAZ6", O_RDONLY|O_EXCL
<unfinished ...>
31829 1362212360.126703 <... open resumed> ) = 16
31829 1362212360.126733 fstat(16,  <unfinished ...>
31829 1362212360.126752 <... fstat resumed> {st_mode=S_IFREG|0600,
st_size=25, ...}) = 0
31829 1362212360.126821 pread(16,  <unfinished ...>
31829 1362212360.126835 <... pread resumed> "<?xml version\302
\205='1.0'?>\r\n", 4096, 0) = 25
31829 1362212360.126867 pread(16,  <unfinished ...>
31829 1362212360.126882 <... pread resumed> "\n", 4096, 24) = 1
31829 1362212360.126909 pread(16,  <unfinished ...>
31829 1362212360.126924 <... pread resumed> "", 4096, 25) = 0

        Which is also odd.

        Prashant - if this happens again - you really need to attach gdb to the
hung unit test process - which will be called 'cppunittester' and get a
stack trace for us.

        How are things going now ?

        Thanks,

                Michael.

-- 
michael.meeks@suse.com  <><, Pseudo Engineer, itinerant idiot