As of D3 7.1.0, when abslock is on, which means loading
all the ABS into memory and keeping them there, the virtual ABS are
now loaded into a read-only shared memory segment. To disable this
feature for the entire virtual machine, use the absprotect off statement
in your configuration (pick0) file. To disable
this feature for a single line, start the line with the -b option.
Warning: During boot, the ABS are written into the shared
memory segment while it is not set to read only. After boot, line
0 remains unprotected until the process ends. To protect line 0 as
well, log on to the dm account and type exit. Then restart line 0, if desired.
Note: In order to load ABS patches, this feature must be disabled,
at least on the line that is loading the patches. Enter d3
-b from Linux, then log on and load the ABS patches.