Klemens Nanni <[email protected]> writes:

> All I get are core dumps right on startup (amd64, default/empty
> `vm.malloc_conf');  it does not matter if I build with `-fcommon' or
> apply fixes from FreeBSD, same crash.
>
> Installing with DEBUG='-g3 -O0 -fcommon':
>
>       $ hnb
>       Segmentation fault (core dumped) 
>       $ egdb --quiet hnb hnb.core
>       Reading symbols from hnb...done.
>       [New process 515561]
>       Core was generated by `hnb'.
>       Program terminated with signal SIGSEGV, Segmentation fault.
>       #0  0x00000d8c6ebe07a8 in node_backrecurse (node=0xffffffffaf56ed00) at 
> tree.c:52
>       52              if (node_up (node)) {
>       (gdb) bt
>       #0  0x00000d8c6ebe07a8 in node_backrecurse (node=0xffffffffaf56ed00) at 
> tree.c:52
>       #1  0x00000d8c6ebe09c4 in node_no (node=0xffffffffaf56ed00) at tree.c:68
>       #2  0x00000d8c6ebe6cfc in ui_draw (node=0xffffffffaf56ed00, 
> input=0xd8c6ec08480 <inputbuf> "", 
>           edit_mode=0) at ui_draw.c:707
>       #3  0x00000d8c6ebd0a28 in evilloop (pos=0xffffffffaf56ed00) at 
> evilloop.c:148
>       #4  0x00000d8c6ebddae7 in main (argc=2, argv=0x7f7ffffe1cc8) at 
> hnb.c:270
>       (gdb) p node
>       $1 = (Node *) 0xffffffffaf56ed00
>       (gdb) p node->up
>       Cannot access memory at address 0xffffffffaf56ed00
>
> I've used `cd $(make show=WRKSRC) && cc -E ./tree.c' to see what it does
> at line 52:
>
>       Node *node_backrecurse (Node *node)
>       {
>        if ((((node))?((node)->up):0)) {
>
> No idea why or how, but that seems plain broken regardless of
> `-fno-common'.
>
> OK to remove?

OK gnezdo@

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