Can't run --prepare after start with error

[Percona]

I run --prepare once, but it failed
/xtrabackup --prepare
xtrabackup_logfile detected: size=3833856, start_lsn=(53 1699020188)
090304 20:44:59 InnoDB: Error: cannot allocate 12884918272 bytes of
InnoDB: memory with malloc! Total allocated memory
InnoDB: by InnoDB 37695136 bytes. Operating system errno: 12
InnoDB: Check if you should increase the swap file or
InnoDB: ulimits of your operating system.
InnoDB: On FreeBSD check you have compiled the OS with
InnoDB: a big enough maximum process size.
InnoDB: Note that in most 32-bit computers the process
InnoDB: memory space is limited to 2 GB or 4 GB.
InnoDB: We keep retrying the allocation for 60 seconds...

because there was running mysqld.

but after that file xtrabackup_logfile disappeared and instead I see ib_logfile0 file, and I can't start --prepare second time with error:

090304 20:45:50 InnoDB: Operating system error number 2 in a file operation.
InnoDB: The error means the system cannot find the path specified.
090304 20:45:50 InnoDB: Fatal error: cannot open ./xtrabackup_logfile
.Error: xtrabackup_init_temp_log() failed.Press any key to continue..

[Yasufumi Kinoshita (yasufumi-kinoshita)]

Thank you.
I have fixed it.
Please confirm.

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXB-522