BBS:      TELESC.NET.BR
Assunto:  sbbs binary: Debian Linux AARCH64 sigfault or permission denied
De:       Deon George
Data:     Wed, 25 Feb 2026 16:30:37 -0800
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https://gitlab.synchro.net/main/sbbs/-/issues/685#note_8437

OK:

* only `void *hackPtr = mmap((void*)((1UL << 47) - 4096), 4096, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE, -1, 0);` still core dumps
   ```
   #0  0x0000fffb9d509d88 in JSObject::getClass (this=0x7ffb83e04100) at jsobj.h:427
   ```

* `void ...` + `personality(ADDR_COMPAT_LAYOUT | PER_LINUX);`
   ```
   #0  0x0000fffbe7284d88 in JSObject::getClass (this=0x7ffbd9c04100) at jsobj.h:427
   ```

* `void ...` + `personality(ADDR_COMPAT_LAYOUT | ADDR_NO_RANDOMIZE | PER_LINUX);`
   ```
   #0  0x0000fffc59921d88 in JSObject::getClass (this=0x7ffc54204100) at jsobj.h:427
   ```

No cigar ;(
--- SBBSecho 3.37-Linux
 * Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)

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