Greetings, and thanks! Breakpoint 2 at 0x200000000051de70 (gdb) r -eval '(run)' Starting program: /home/camm/maxima-5.20.1/src/binary-gcl/maxima -eval '(run)' Warning: Cannot insert breakpoint 2. Error accessing memory address 0x200000000051de70: Input/output error.
(gdb) ??? Take care, Zan Lynx <[email protected]> writes: > On 1/26/10 3:29 PM, Camm Maguire wrote: >> Greetings, ad thanks for your helpful suggestions. Having a bit of >> trouble. >> >> All this is in merulo chroot sid with gcc 4.4 at -O2. >> >> Outside gdb: >> >> 133/133 tests passed. >> Running tests in rtest8: maxima(18072): unaligned access to >> 0x600000000412c8b8, ip=0x200000000051de70 >> Bus error >> >> Inside gdb, the program does not stop at this point with a bus error, >> but dies later due to memory corruption. >> >> 1) Can I instruct gdb to stop at any such unaligned access? >> >> I guessed: >> >> (gdb) b *0x600000000412c8b8 >> Can't insert breakpoint for slot numbers greater than 2. >> >> (gdb) b *0x600000000412c8b1 >> Breakpoint 3 at 0x600000000412c8b1 >> >> then reran, but gdb fell over: > > The 0x6... addr is the data. You cannot execute data so you cannot > breakpoint there (you could set a watchpoint though). > > Use the 0x200000000051de70 addr instead. > > -- > Zan Lynx > [email protected] > > "Knowledge is Power. Power Corrupts. Study Hard. Be Evil." > > > -- Camm Maguire [email protected] ========================================================================== "The earth is but one country, and mankind its citizens." -- Baha'u'llah -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
