bitcoind crashed

[bituser1]

OS centos6
Installed as follows:
yum install-y http://linux.ringingliberty.com/bitcoin/el6/x86_64/bitcoin-release-1-4.noarch.rpm
yum install bitcoin-server.i686
Launched as a daemon:
bitcoind-daemon
Works for a while and disappears from the processes.

Code:

In / var / lib / bitcoin / debug.log basically this: 
Misbehaving: 118.114.21.135:8333 (0 -> 0)
received block 0000000000000007a30c0d5aca337668683d5ccddbcc7c3b409222aad9ca5b80
ProcessBlock: ORPHAN BLOCK, prev = 0000000000000006009066dae4ea631ab1497200dfefaa608e9a0b11fe12a251
received block 00000000000002c1448d032b7c01e98bed7ae485c626acedf4c814b10a8c3cbb
ProcessBlock: ORPHAN BLOCK, prev = 00000000000003c4c94683b1056f77994b2f75b8670c245db2c7b8e1db5707ff


************************
EXCEPTION: St9bad_alloc
std :: bad_alloc
bitcoin in msghand 

What I do not understand it.
translated translate.google.com

[1715477188]

1715477188

[forests]

Sounds like you're running out of RAM.

[inkadnb]

Sounds like you're running out of RAM.

http://www.cplusplus.com/reference/new/bad_alloc/

Could be a memory leak, could also be a hardware issue. Verify bitcoind's memory usage.

As forests said, you could just be running out of available memory.