Changes

== Curing dumpee from parasite code ==

== Curing dumpee from parasite code ==

Once everything is done and we no longer need parasite we are removing it from the dumpee address space in several steps:

Once everything is done and we no longer need parasite it is removed from the dumpee's address space by performing the following steps:

# CRIU start tracing the syscalls parasite is executing with help of <code>ptrace</code>

# CRIU starts tracing the syscalls parasite is executing with help of <code>ptrace</code>

# Send <code>PARASITE_CMD_FINI</code> to parasite via control socket

# CRIU sends <code>PARASITE_CMD_FINI</code> to the parasite via the control socket

# Parasite receives it, then closes control socket and executes <code>rt_sigreturn()</code> system call

# Parasite receives the command, then closes control socket and executes <code>rt_sigreturn()</code> system call

# CRIU intercept exit from this syscall and unmaps parasite memory area, thus victim become into the state it was before parasite injection

# CRIU intercepts exit from this syscall and unmaps parasite memory area, thus reverting the dumpee back to the state it was in before parasite injection

== See also ==

== See also ==