.
Thread 2 (process 6897):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb71b7cdb in read () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7157e58 in _IO_file_seekoff () from /lib/tls/i686/cmov/libc.so.6
#3  0xb714eb6a in ?? () from /lib/tls/i686/cmov/libc.so.6
#4  0xb715588c in fseeko64 () from /lib/tls/i686/cmov/libc.so.6
#5  0xb6be490d in FileStream::reset () from /usr/lib/libpoppler.so.2
#6  0xb6bd3bd2 in Lexer::Lexer () from /usr/lib/libpoppler.so.2
#7  0xb6beaba5 in XRef::constructXRef () from /usr/lib/libpoppler.so.2
#8  0xb6beae57 in XRef::constructXRef () from /usr/lib/libpoppler.so.2
#9  0xb6beab0a in XRef::constructXRef () from /usr/lib/libpoppler.so.2
#10 0xb6bd91c0 in ?? () from /usr/lib/libpoppler.so.2
#11 0xb522b388 in ?? ()
#12 0x000004a3 in ?? ()
#13 0x00000000 in ?? ()
.
Thread 1 (process 6896):
#0  0xb6bd8c80 in Object::free () from /usr/lib/libpoppler.so.2
#1  0xb6be9936 in compare () from /usr/lib/libpoppler.so.2
#2  0xb6beaad8 in XRef::constructXRef () from /usr/lib/libpoppler.so.2
#3  0xb6bd91c0 in ?? () from /usr/lib/libpoppler.so.2
#4  0xb522b388 in ?? ()
#5  0x000010be in ?? ()
#6  0x00000000 in ?? ()