Hi Pedro,
I am attaching the patch that was mentioned in the following thread. I resurrected it from our internal repo, did a bit of manual testing and run the regression suite without any problem. It basically reads memory from the target in a buffer in gdb_disassembly and tries to use this buffer in dis_asm_read_memory instead of reading from the target. This saves us on repeated memory read calls. The problem was noted when eclipse was trying to fill its disassembly view.
https://sourceware.org/ml/gdb-patches/2013-10/msg00221.html

Regards,
Abid

2013-10-10  Taimoor Mirza  <taimoor_mirza@mentor.com>

	* disasm.c (DIS_BUF_SIZE): New define.
	(dis_asm_read_memory): Read from the disassembly buffer instead
	of target memory directly.
	(gdb_disassembly): Fill the disassembly buffer with a chunk of
	the memory to disassemble.