------- Comment #4 from michael dot haubenwallner at salomon dot at 2007-02-16 18:06 ------- Have already debugged inside mallinfo(), where gdb says: Program received signal SIGBUS, Bus error si_code: 1 - BUS_ADRALN - Invalid address alignment. 0x200000007edb4130:0 in mallinfo+0x180 () from /usr/lib/hpux32/libc.so.1
The disassembly snippet of mallopt() is: (gdb) disassemble $pc $pc+0x10 Dump of assembler code from 0x200000007edb4130:0 to 0x200000007edb4140:0: 0x200000007edb4130:0 <mallinfo+0x180>: st8 [r79]=r9 0x200000007edb4130:1 <mallinfo+0x181>: st8 [r38]=r8,8 0x200000007edb4130:2 <mallinfo+0x182>: adds r14=-8,r11;; End of assembler dump. (gdb) p /x $r79 $2 = 0x200000007fffe914 (gdb) The value of r79 comes from that r8 set on line#18, which is incorrectly aligned to 4 when calculated from '20, r12'. Seems that it needs to be aligned to 8 for 'st8'... -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30826