674 root        704 S   /bin/sh 
  694 root        352 R   hello 
  695 root        652 R   ps 
/ # cr_checkpoint 694
Checkpoint failed: Cannot allocate memory
/ #

dmesg:
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
vmadump: (from bproc-4.0.0pre8) Erik Hendriks <erik@hendriks.cx>
vmadump: Modified for blcr 0.7.2 <http://ftg.lbl.gov/checkpoint>
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
blcr: Berkeley Lab Checkpoint/Restart (BLCR) module version 0.7.2.
blcr:   Tracing enabled (trace_mask=0xffff)
blcr:   Supports kernel interface version 0.9.0.
blcr:   Supports context file format version 7.
blcr: http://ftg.lbl.gov/checkpoint
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
eth0: spurious interrupt (mask = 0xb3)
cr_log_request <cr_chkpt_req.c:834>, pid 697: checkpointing process tree 687
cr_do_vmadump <cr_dump_self.c:777>, pid 694: Preparing to dump 1 threads of hello