Hi, I was looking into https://bugzilla.novell.com/show_bug.cgi?id=307781 - basically, Nautilus crashes inside libeel in x86_64 at the start of a varargs function. JPR helped me take disassemblies of both builds; this is the start of the function for both versions: Build1005 - crashes (built on bach.suse.de) (gdb) disassemble eel_canvas_item_new 0x0000000000033c60 : mov %rbp,-0x18(%rsp) 0x0000000000033c65 : mov %r12,-0x10(%rsp) 0x0000000000033c6a : mov %rdi,%rbp 0x0000000000033c6d : mov %r13,-0x8(%rsp) 0x0000000000033c72 : mov %rbx,-0x20(%rsp) 0x0000000000033c77 : sub $0xf8,%rsp 0x0000000000033c7e : mov %rcx,0x38(%rsp) 0x0000000000033c83 : movzbl %al,%ecx 0x0000000000033c86 : mov %r8,0x40(%rsp) 0x0000000000033c8b : lea 0x0(,%rcx,4),%rax 0x0000000000033c93 : lea 0x20(%rip),%rcx # 0x33cba ^^^^ note the offset 0x0000000000033c9a : mov %r9,0x48(%rsp) 0x0000000000033c9f : mov %rsi,%r12 0x0000000000033ca2 : mov %rdx,%r13 0x0000000000033ca5 : sub %rax,%rcx 0x0000000000033ca8 : lea 0xcf(%rsp),%rax 0x0000000000033cb0 : jmpq *%rcx 0x0000000000033cb2 : movaps %xmm7,-0xf(%rax) 0x0000000000033cb6 : movaps %xmm6,-0x1f(%rax) ^^^^^ note how only xmm7 and xmm6 get used 0x0000000000033cba : callq 0x23cd8 Build1010 - doesn't crash (built on roth.suse.de) (gdb) disassemble eel_canvas_item_new 0x00002b91e8ee8ee0 : mov %rbp,-0x18(%rsp) 0x00002b91e8ee8ee5 : mov %r12,-0x10(%rsp) 0x00002b91e8ee8eea : mov %rdi,%rbp 0x00002b91e8ee8eed : mov %r13,-0x8(%rsp) 0x00002b91e8ee8ef2 : mov %rbx,-0x20(%rsp) 0x00002b91e8ee8ef7 : sub $0xf8,%rsp 0x00002b91e8ee8efe : mov %rcx,0x38(%rsp) 0x00002b91e8ee8f03 : movzbl %al,%ecx 0x00002b91e8ee8f06 : mov %r8,0x40(%rsp) 0x00002b91e8ee8f0b : lea 0x0(,%rcx,4),%rax 0x00002b91e8ee8f13 : lea 0x38(%rip),%rcx # 0x2b91e8ee8f52 ^^^^^^^^^^ different offset 0x00002b91e8ee8f1a : mov %r9,0x48(%rsp) 0x00002b91e8ee8f1f : mov %rsi,%r12 0x00002b91e8ee8f22 : mov %rdx,%r13 0x00002b91e8ee8f25 : sub %rax,%rcx 0x00002b91e8ee8f28 : lea 0xcf(%rsp),%rax 0x00002b91e8ee8f30 : jmpq *%rcx 0x00002b91e8ee8f32 : movaps %xmm7,-0xf(%rax) 0x00002b91e8ee8f36 : movaps %xmm6,-0x1f(%rax) 0x00002b91e8ee8f3a : movaps %xmm5,-0x2f(%rax) 0x00002b91e8ee8f3e : movaps %xmm4,-0x3f(%rax) 0x00002b91e8ee8f42 : movaps %xmm3,-0x4f(%rax) 0x00002b91e8ee8f46 : movaps %xmm2,-0x5f(%rax) 0x00002b91e8ee8f4a : movaps %xmm1,-0x6f(%rax) 0x00002b91e8ee8f4e : movaps %xmm0,-0x7f(%rax) ^^^^^ xmm7 to xmm0 get used 0x00002b91e8ee8f52 : callq 0x2b91e8ed8c58 I'm wondering what might have changed. The bug has been there since Beta1, but with the latest (post-Beta3) it doesn't happen. Did the compiler change or something? The build hosts are different, but shouldn't they produce the same results? Thanks, Federico --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org