命令行上的PHP显示“Out of Memory”,没有文件名,行号或内存值

我最初发布于 https://stackoverflow.com/questions/9665189/php-on-command-line-displays-out-of-memory,但建议在此发布.

当脚本中的内存不足时,这不是正常的致命错误,因为它没有提供文件名,行号或使用的内存量.每当我尝试在命令行上运行php时,它只是说“内存不足”,或者当你传递一个脚本或者只是自己运行php时.即使尝试运行不存在的脚本也会产生相同的消息.

换句话说,我明白了：

dan@server [~]# php
Out of memory
dan@server [~]# php test.php
Out of memory
dan@server [~]# php doesntexist.php
Out of memory
dan@server [~]# php -v
Out of memory

但是通过Apache的PHP工作非常好.我只是在CLI上得到了这个错误.

有问题的机器运行的是CentOS版本5.7(最终版),它是64位和PHP 5.3.10.它是一个专用的服务器.

我尝试过运行ulimit -a,如同建议的那样,这是输出：

core file size          (blocks,-c) 200000
data seg size           (kbytes,-d) 200000
scheduling priority             (-e) 0
file size               (blocks,-f) unlimited
pending signals                 (-i) 37888
max locked memory       (kbytes,-l) 32
max memory size         (kbytes,-m) 200000
open files                      (-n) 100
pipe size            (512 bytes,-p) 8
POSIX message queues     (bytes,-q) 819200
real-time priority              (-r) 0
stack size              (kbytes,-s) 8192
cpu time               (seconds,-t) unlimited
max user processes              (-u) 35
virtual memory          (kbytes,-v) 200000
file locks                      (-x) unlimited

root上的free -m给出了：

total       used       free     shared    buffers     cached
Mem:          3824       3714        110          0        142       2632
-/+ buffers/cache:        939       2885
Swap:         3490          0       3490

从顶部开始的内存使用情况：

Mem:   3916648k total,3797056k used,119592k free,145820k buffers
Swap:  3574452k total,168k used,3574284k free,2686844k cached

更新：昨天重新启动服务器,它在下午的剩余时间工作.然而,今天它正在做同样的事情.

运行“strace php test.php”(一个存在的文件),它会持续一段时间,但putty的最后一页左右是这样的：

fstat(3,{st_mode=S_IFREG|0644,st_size=100030,...}) = 0
mmap(NULL,100030,PROT_READ,MAP_PRIVATE,3,0) = 0x2ad3ce0af000
close(3)                                = 0
open("/lib64/libnss_dns.so.2",O_RDONLY) = 3
read(3,"177ELF2113>134017"...,832) = 832
fstat(3,{st_mode=S_IFREG|0755,st_size=23736,2113792,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_DENYWRITE,0) = -1 ENOMEM (Cannot allocate memory)
close(3)                                = 0
munmap(0x2ad3ce0af000,100030)          = 0
alarm(0)                                = 0
futex(0x3d80e07b20,FUTEX_WAKE_PRIVATE,2147483647) = 0
futex(0x3d80e079a0,2147483647) = 0
futex(0x3d7fe94760,2147483647) = 0
futex(0x3d7fe94c10,2147483647) = 0
stat("/etc/krb5.conf",st_size=608,...}) = 0
open("/proc/filesystems",O_RDONLY)     = 3
read(3,"nodevtsysfsnnodevtrootfsnnodevtb"...,4095) = 314
close(3)                                = 0
open("/etc/krb5.conf",O_RDONLY)        = 3
open("/proc/filesystems",O_RDONLY)     = 4
read(4,4095) = 314
close(4)                                = 0
access("/etc/krb5.conf",W_OK)          = -1 EACCES (Permission denied)
fstat(3,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS,-1,0) = 0x2ad3ce0af000
read(3,"[logging]n default = FILE:/var/l"...,4096) = 608
read(3,"",4096)                       = 0
close(3)                                = 0
munmap(0x2ad3ce0af000,4096)            = 0
open("/dev/urandom",O_RDONLY)          = 3
fstat(3,{st_mode=S_IFCHR|0444,st_rdev=makedev(1,9),...}) = 0
read(3,"30026036co363cIt3553243518gy354357314Z:",20) = 20
close(3)                                = 0
futex(0x3d7f624640,2147483647) = 0
open("/proc/filesystems",4095) = 314
close(3)                                = 0
open("/etc/krb5.keytab",O_RDONLY)      = -1 ENOENT (No such file or directory)
open("/proc/filesystems",4095) = 314
close(3)                                = 0
futex(0x3d8122d0c0,2147483647) = 0
stat("/dev/urandom",...}) = 0
brk(0x340b000)                          = 0x340b000
brk(0x342c000)                          = 0x340b000
mmap(NULL,1048576,0) = -1 ENOMEM (Cannot allocate memory)
mmap(NULL,134217728,PROT_NONE,MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,67108864,0) = -1 ENOMEM (Cannot allocate memory)
write(2,"Out of memoryn",14Out of memory
)         = 14
exit_group(1)                           = ?

编辑：按照sonassi的要求添加输出.

整个日志位于http://www.2shared.com/file/05MVRFI6/dmp.html

cat / proc / meminfo的输出：

MemTotal:      3916648 kB
MemFree:        501180 kB
Buffers:        335276 kB
Cached:        2312536 kB
SwapCached:          0 kB
Active:        1312888 kB
Inactive:      1702096 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      3916648 kB
LowFree:        501180 kB
SwapTotal:     3574452 kB
SwapFree:      3574292 kB
Dirty:             728 kB
Writeback:           0 kB
AnonPages:      367160 kB
Mapped:          33640 kB
Slab:           351564 kB
PageTables:      18588 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5532776 kB
Committed_AS:  1188280 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    265828 kB
VmallocChunk: 34359471827 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

运行php test.php后cat / proc / meminfo的输出如下.我在这里替换了服务器的IP地址,因为它是公共IP – xxx.xxx.xxx.11是服务器的主IP,xxx.xxx.xxx.12是其他IP.

Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=93.191.199.110 DST=xxx.xxx.xxx.11 LEN=32 TOS=0x00 PREC=0x00 TTL=3 ID=271 PROTO=UDP SPT=10170 DPT=33437 LEN=12
Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=89.39.188.210 DST=xxx.xxx.xxx.11 LEN=48 TOS=0x00 PREC=0x00 TTL=117 ID=47199 DF PROTO=TCP SPT=2119 DPT=4899 WINDOW=65535 RES=0x00 SYN URGP=0
Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=89.39.188.210 DST=xxx.xxx.xxx.11 LEN=48 TOS=0x00 PREC=0x00 TTL=117 ID=47678 DF PROTO=TCP SPT=2119 DPT=4899 WINDOW=65535 RES=0x00 SYN URGP=0
Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=89.39.188.210 DST=xxx.xxx.xxx.11 LEN=48 TOS=0x00 PREC=0x00 TTL=117 ID=48675 DF PROTO=TCP SPT=2119 DPT=4899 WINDOW=65535 RES=0x00 SYN URGP=0
Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=198.60.169.59 DST=xxx.xxx.xxx.11 LEN=48 TOS=0x00 PREC=0x00 TTL=116 ID=16299 DF PROTO=TCP SPT=3185 DPT=5555 WINDOW=16384 RES=0x00 SYN URGP=0
Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=198.60.169.59 DST=xxx.xxx.xxx.12 LEN=48 TOS=0x00 PREC=0x00 TTL=116 ID=16300 DF PROTO=TCP SPT=3186 DPT=5555 WINDOW=16384 RES=0x00 SYN URGP=0
Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=198.60.169.59 DST=xxx.xxx.xxx.12 LEN=48 TOS=0x00 PREC=0x00 TTL=116 ID=17038 DF PROTO=TCP SPT=3186 DPT=5555 WINDOW=16384 RES=0x00 SYN URGP=0
Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=198.60.169.59 DST=xxx.xxx.xxx.11 LEN=48 TOS=0x00 PREC=0x00 TTL=116 ID=17073 DF PROTO=TCP SPT=3185 DPT=5555 WINDOW=16384 RES=0x00 SYN URGP=0
Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=188.254.224.225 DST=xxx.xxx.xxx.12 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=39888 PROTO=TCP SPT=59828 DPT=5900 WINDOW=65535 RES=0x00 SYN URGP=0
Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=188.254.224.225 DST=xxx.xxx.xxx.11 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=43041 PROTO=TCP SPT=59828 DPT=5900 WINDOW=65535 RES=0x00 SYN URGP=0
Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=93.191.199.110 DST=xxx.xxx.xxx.11 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=269 PROTO=UDP SPT=10202 DPT=33437 LEN=12
Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=93.191.199.110 DST=xxx.xxx.xxx.11 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=269 PROTO=UDP SPT=10202 DPT=33437 LEN=12
Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=93.191.199.110 DST=xxx.xxx.xxx.11 LEN=32 TOS=0x00 PREC=0x00 TTL=2 ID=270 PROTO=UDP SPT=10202 DPT=33437 LEN=12
Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=93.191.199.110 DST=xxx.xxx.xxx.11 LEN=32 TOS=0x00 PREC=0x00 TTL=2 ID=270 PROTO=UDP SPT=10202 DPT=33437 LEN=12
Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=93.191.199.110 DST=xxx.xxx.xxx.11 LEN=32 TOS=0x00 PREC=0x00 TTL=3 ID=271 PROTO=UDP SPT=10202 DPT=33437 LEN=12
Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=93.191.199.110 DST=xxx.xxx.xxx.11 LEN=32 TOS=0x00 PREC=0x00 TTL=3 ID=271 PROTO=UDP SPT=10202 DPT=33437 LEN=12
Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=65.111.170.208 DST=xxx.xxx.xxx.11 LEN=444 TOS=0x00 PREC=0x00 TTL=52 ID=0 DF PROTO=UDP SPT=5105 DPT=5060 LEN=424
Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=65.111.170.208 DST=xxx.xxx.xxx.12 LEN=443 TOS=0x00 PREC=0x00 TTL=52 ID=0 DF PROTO=UDP SPT=5105 DPT=5060 LEN=423
TCP: Treason uncloaked! Peer 82.129.64.220:5306/59348 shrinks window 3410313698:3410313754. Repaired.
Firewall: *UDP_IN Blocked* IN=eth0 OUT= MAC=00:23:ae:8f:59:78:30:37:a6:da:d2:e9:08:00 SRC=223.203.192.53 DST=xxx.xxx.xxx.12 LEN=1500 TOS=0x00 PREC=0x00 TTL=47 ID=2742 PROTO=UDP SPT=0 DPT=0 LEN=44665

cat /etc/security/limits.conf显示我已经注释掉了所有内容：

# /etc/security/limits.conf
#
#Each line describes a limit for a user in the form:
#
#<domain>        <type>  <item>  <value>
#
#Where:
#<domain> can be:
#        - an user name
#        - a group name,with @group syntax
#        - the wildcard *,for default entry
#        - the wildcard %,can be also used with %group syntax,#                 for maxlogin limit
#
#<type> can have the two values:
#        - "soft" for enforcing the soft limits
#        - "hard" for enforcing hard limits
#
#<item> can be one of the following:
#        - core - limits the core file size (KB)
#        - data - max data size (KB)
#        - fsize - maximum filesize (KB)
#        - memlock - max locked-in-memory address space (KB)
#        - nofile - max number of open files
#        - rss - max resident set size (KB)
#        - stack - max stack size (KB)
#        - cpu - max CPU time (MIN)
#        - nproc - max number of processes
#        - as - address space limit
#        - maxlogins - max number of logins for this user
#        - maxsyslogins - max number of logins on the system
#        - priority - the priority to run user process with
#        - locks - max number of file locks the user can hold
#        - sigpending - max number of pending signals
#        - msgqueue - max memory used by POSIX message queues (bytes)
#        - nice - max nice priority allowed to raise to
#        - rtprio - max realtime priority
#
#<domain>      <type>  <item>         <value>
#

#*               soft    core            0
#*               hard    rss             10000
#@student        hard    nproc           20
#@faculty        soft    nproc           20
#@faculty        hard    nproc           50
#ftp             hard    nproc           0
#@student        -       maxlogins       4

# End of file

而cat /etc/sysctl.conf的输出：

# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values,0 is disabled,1 is enabled.  See sysctl(8) and
# sysctl.conf(5) for more details.

# Controls IP packet forwarding
net.ipv4.ip_forward = 0

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1

# Do not accept source routing
net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename
# Useful for debugging multi-threaded applications
kernel.core_uses_pid = 1

# Controls the use of TCP syncookies
net.ipv4.tcp_syncookies = 1

# Controls the maximum size of a message,in bytes
kernel.msgmnb = 65536

# Controls the default maxmimum size of a mesage queue
kernel.msgmax = 65536

# Controls the maximum shared segment size,in bytes
kernel.shmmax = 68719476736

# Controls the maximum number of shared memory segments,in pages
kernel.shmall = 4294967296

编辑：更新上面的ulimit以dan,而不是root运行.