The file patch-2.4.19-rmk6-pxa1-hh13-fass5 is a minimal-changes version of
Adam Wiggins' patch-2.4.18-rmk4-fass4, targetted to the kernel used under
Familiar Linux 0.7.0.  Unfortunately, it does not work correctly: the
kernel halts with an OOPS:

kernel BUG at mmap.c:1227!
Unable to handle kernel NULL pointer dereference at virtual address 00000000
mm = c000d080 pgd = c0008000
*pgd = c3f1f801, *pmd = c3f1f801, *pte = 00000000, *ppte = 00000000
Internal error: Oops: ffffffff
CPU: 0
pc : [<c001f768>]    lr : [<c001f764>]    Not tainted
sp : c0261ef0  ip : c0261ed0  fp : 00060000
r10: c0150bb4  r9 : c0135724  r8 : c000d120
r7 : c000c660  r6 : c000d120  r5 : 00000000  r4 : 00000000
r3 : 00000000  r2 : 00000001  r1 : 00000001  r0 : 00000001
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  Segment user
Control: C000717F  Table: C000717F  DAC: 00000015
Process linuxrc (pid: 1, stack limit = 0xc0260374)
Stack: (0xc0261ef0 to 0xc0262000)
1ee0:                                     c000c660 c003b1f4 c0261efc c3e10000
1f00: c0142554 c0004000 c000c660 00000000 c000d120 c000d13c 00000002 c002295c
1f20: c3e14000 c000d080 c000d120 c3e14000 00000000 fffffff4 00000000 01fffcc0
1f40: c0261fa8 c00276f8 00000000 c3e14000 00000011 fffffff4 00000000 c0027ed0
1f60: c002010c c000d09c c0260000 40000010 c000d080 000489f4 00000000 00086e40
1f80: 00000000 0008494c 00000002 c001a784 c0260000 01e6d950 00000000 c001a600
1fa0: 00086e40 c001a57c 01e706c0 000001fc 00000000 00084dfc 00086e40 00000000
1fc0: 0008494c 00000000 00000000 0008494c 01e6d950 0008499c 01def490 01fffcc0
1fe0: 00048bc4 01def4b4 60000010 01e706c0 00000000 c001bd38 00000000 00000000
Backtrace: invalid frame pointer
Code: 1b002709 e59f0014 eb002707 e3a03000 (e5833000)
Kernel panic: Attempted to kill init!

This occurs at the first call to exec(), as far as I can tell.