[FS#822] busybox (ash) sporadically segfaults running shell scripts on ar71xx

[LEDE Bugs]

The following task has a new comment added:

FS#822 - busybox (ash) sporadically segfaults running shell scripts on ar71xx
User who did this - Matthias Schiffer (NeoRaider)

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Stack dump around $sp (7fcf97d0):


(gdb) x/64 $sp-128
0x7fcf9750:     0x0000019e      0x00000000      0x00000000      0x00000000
0x7fcf9760:     0x0091a6e8      0x00000000      0x0000000b      0x0041c70b
0x7fcf9770:     0x0090d63b      0x0045b544      0x0091a6f4      0x77a66f98
0x7fcf9780:     0x77a52c8c      0x779ed000      0x77a6e2c0      0x0090d647
0x7fcf9790:     0x00000000      0x00000000      0x77a68de0      0x0041d15f
0x7fcf97a0:     0x77a6e2c0      0x00000003      0x0000002f      0x77a36c48
0x7fcf97b0:     0x00000000      0x0091a6f4      0x00000000      0x0090b7c0
0x7fcf97c0:     0x77a6e2c0      0x7fcfdd78      0x7fcf9900      0x0041efb1
0x7fcf97d0:     0x00910df4      0x00000000      0x77a64000      0x77a64000
0x7fcf97e0:     0x77a67518      0x77a68d8c      0x00000000      0x77a6e2c0
0x7fcf97f0:     0x00000102      0x00000000      0x00000001      0x0090ccc0
0x7fcf9800:     0x00000000      0x00910df4      0x0045b7d8      0x77a3752c
0x7fcf9810:     0x77a6e2c0      0x00418f9d      0x00000000      0x80000400
0x7fcf9820:     0x77a6e2c0      0x00000000      0x00910df4      0x0041ad53
0x7fcf9830:     0x00000000      0x00000008      0x00000004      0x00000008
0x7fcf9840:     0x0045b7d8      0x0041a251      0x77a67518      0x00910df4

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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=822#comment2778