Window Maker Illegal Instruction

Window Maker crashes with illegal instruction upon launching a second application from the application menu.

Dmesg output:
```
409 stub syscall 332
409 stub syscall 291
419 stub syscall 332
419 stub syscall 332
419 stub syscall 291
FIXME socketcall 18
FIXME socketcall 18
FIXME socketcall 18
FIXME socketcall 18
414 stub syscall 332
414 stub syscall 332
414 stub syscall 291
14 illegal instruction at 0xf7f896e4: f4 c3 56 53 53 e8 8f 83
842 stub syscall 332
842 stub syscall 291
413 illegal instruction at 0xf71b51bc: cc 58 5b 5e c3 e8 0a 1f
428 illegal instruction at 0xf7f896e4: f4 c3 56 53 53 e8 8f 83
1292 stub syscall 332
1292 stub syscall 291
853 illegal instruction at 0xf7f896e4: f4 c3 56 53 53 e8 8f 83
```

Start by reproducing the crash when launching a second application from the application menu, then collect the `dmesg` output described in the issue. No source file or test is named; trace the illegal-instruction and stub-syscall reports to the relevant implementation. Done means the second application launches without an illegal-instruction crash.

Written by the indexing model from the issue text.