On 02/13/2011 07:13 PM, Michael Higgins wrote:
>
> Hi. Sorry I haven't lurked enough to see what, if anything, this list
> tends to look like.
>
> I filed a bug[1], then apparently was able to have function and closed
> the bug. I find now that this is not really the case, but I probably
> can't blame anything in specific.
>
> Here's from dmesg:
>
> [94783.684863] qsampler[23155]: segfault at 6e693124 ip b7388af0 sp
> bfe37660 error 4 in libQtGui.so.4.7.1[b6c92000+a94000]
>
> Because I haven't yet been able to fix this on my own, I'm appealing to
> anyone reading this list for a clue. What I'm seeing is I can use this
> package ONLY if it's the first thing loaded in my desktop. IOW, any and
> all efforts to load the software fail in this way if it has already been
> loaded once.
>
> Also I've seen qsampler load samples to linuxsampler and crash
> immediately, but linuxsampler continues working. Linuxsampler seems to
> always be left in memory after the crash, even if qsampler starts it.
>
> Not being a programmer, I can only speculate based on observation of
> behaviour... and wild guesses regarding some log output. If I can in
> some way better track down the problem, please let me know.
>
> "strace qsampler" fails like
>
> send(11, "LIST MIDI_INSTRUMENTS ALL\r\n", 27, 0) = 27
> select(12, [11], NULL, NULL, {1, 0}) = 1 (in [11], left {0, 999995})
> recv(11, "\r\n", 1023, 0) = 2
> poll([{fd=7, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=7,
> revents=POLLOUT}]) writev(7,
> [{"\2\24\4\0\3\0`\2\0@\0\0\t\0`\2\2\0\4\0\3\0`\2\0@\0\0\t\0`\2"...,
> 112}, {NULL, 0}, {"", 0}], 3) = 112 read(7, 0x9391f58,
> 4096) = -1 EAGAIN (Resource temporarily unavailable) ---
> SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++
>
> Which means very little to me, but that it seems like a failed call to
> linuxsampler crashes qsampler. Maybe in the gui thread... already, I'm
> guessing and lost.
>
> A little recent history:
>
> jackd -R -d alsa &
> killall linuxsampler
> qsampler
> killall linuxsampler
> a2jmidid&
> strace qsampler
>
>
> [1] https://bugs.linuxsampler.org/cgi-bin/show_bug.cgi?id=151
>
> Sorry for the noise.
>
does that segfault still happens with latest cvs head? (qsampler
0.2.2.28) ??
cya
--
rncbc aka Rui Nuno Capela
rn...@rncbc.org
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