Adding sox-devel to Cc:, Jan was able to trigger a segfault on OpenBSD i386 with the below example on 14.4.1.
Jan Stary <h...@stare.cz> wrote: > On Sep 04 06:22:25, normalper...@yhbt.net wrote: > > Can you replace .wav with .sox (or other formats) and reproduce the > > issue with a different format? > > The same happens with the .sox format: > > $ sox -n one.sox synth 4.145 sin 440 gain -6 > $ sox -n two.sox synth 5.325 sin 540 gain -6 > $ sox -V "|sox one.sox -p trim 0 -`soxi -D two.sox`" two.sox out.sox > sox: SoX v14.4.1 > sox INFO formats: detected file format type `sox' > sox FAIL trim: Position 2 is before start of audio. > sox INFO formats: detected file format type `sox' > Segmentation fault (core dumped) > > > > > > > Can you fire up gdb on the core dump and show us the backtrace? > > > > > (hopefully your sox build has debugging symbols). Thanks. > #0 memcpy () > at /usr/src/lib/libc/arch/i386/string/bcopy.S:88 > 88 rep > (gdb) bt > #0 memcpy () at /usr/src/lib/libc/arch/i386/string/bcopy.S:88 > #1 0x06c2394b in fread (buf=0xcfbd6e24, size=1, count=4, fp=0x26bb8f98) > at /usr/src/lib/libc/stdio/fread.c:69 > #2 0x0506eac1 in lsx_readbuf () from /usr/local/lib/libsox.so.3.0 > #3 0x0506ef00 in lsx_read_dw_buf () from /usr/local/lib/libsox.so.3.0 > #4 0x0506ef91 in lsx_readdw () from /usr/local/lib/libsox.so.3.0 > #5 0x050713af in startread () from /usr/local/lib/libsox.so.3.0 > #6 0x0506d2b7 in open_read () from /usr/local/lib/libsox.so.3.0 OK, based on the above I suspect it's in the pipe handling code and not a problem with trim itself. That code (in src/formats.c) contains some strange OS-specific code for rewinding pipes, and I haven't looked closely at it. Can you reproduce the issue by using a temporary file instead of a pipe? I strongly suspect this is OpenBSD-specific and only to pipes. > > A system call trace probably isn't going to be useful in this case. > > I was just suspecting some of the time_t related problems > to possibly show up. But I will stick to gdb then. > > Jan > > PS: should we move this to -dev? Probably, yes. Cc-ed them. I'm not a real sox developer :) ------------------------------------------------------------------------------ Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clktrk _______________________________________________ SoX-devel mailing list SoX-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sox-devel
