Re: [gentoo-user] openscad seg fault

[Adam Carter]

>
> If it's build using debug options, looking with GDB where it fail would be
> much more useful than a random dependency graph.
>

Its not at the moment, but i can try that.

>
> It's intriguing that it default just after doing a mmap:
>
> mmap(NULL, 4096, PROT_READ|PROT_WRITE|PROT_EXEC,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f50a7949000
>
>
> What options did you pass to strace to get this log? Have you set the
> "follow child" option?
>

No options. With follow child (-f) it looks similar tho;

[pid 31585] ioctl(10, 0xc008646a, 0x7ffe4fbcfb50) = 0
[pid 31585] ioctl(10, 0x40086464, 0x7ffe4fbcfb50) = 0
[pid 31585] ioctl(10, 0xc020645e, 0x7ffe4fbcfb70) = 0
[pid 31585] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, 10,
0x136821000) = 0x7f3f1a735000
[pid 31585] munmap(0x7f3f1a735000, 4096) = 0
[pid 31585] futex(0x201aba4, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x201aba0,
{FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
[pid 32475] <... futex resumed> )       = 0
[pid 31585] futex(0x208d0ec, FUTEX_WAIT_PRIVATE, 1, NULL <unfinished ...>
[pid 32475] futex(0x201ab78, FUTEX_WAKE_PRIVATE, 1) = 0
[pid 32475] ioctl(10, 0xc0206466, 0x207bf50) = 0
[pid 32475] futex(0x208d0ec, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x208d0e8,
{FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
[pid 31585] <... futex resumed> )       = 0
[pid 32475] futex(0x201aba4, FUTEX_WAIT_PRIVATE, 3, NULL <unfinished ...>
[pid 31585] futex(0x208d0c0, FUTEX_WAKE_PRIVATE, 1) = 0
[pid 31585] ioctl(10, 0xc020645d, 0x7ffe4fbcfe00) = 0
[pid 31585] futex(0x35a6a2c168, FUTEX_WAKE_PRIVATE, 2147483647) = 0
[pid 31585] mmap(NULL, 4096, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3f1a735000
[pid 31585] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR,
si_addr=0x968} ---
[pid 32475] +++ killed by SIGSEGV +++
+++ killed by SIGSEGV +++
Segmentation fault