OS：AIX 7.1

root、oracle、grid用户查看资源限制，其中stack受限，需要在/etc/security/limits中增加stack_hard = -1，受硬限制限制！

 [oracle@DB-]/home/oracle$ulimit -a

 time(seconds)        unlimited

 file(blocks)         unlimited

 data(kbytes)         unlimited

 stack(kbytes)

 memory(kbytes)       unlimited

 coredump(blocks)     unlimited

 nofiles(descriptors) unlimited

 threads(per process) unlimited

 processes(per user)  unlimited         

 # su - grid

 $ ulimit -a

 time(seconds)        unlimited

 file(blocks)         unlimited

 data(kbytes)         unlimited

 stack(kbytes)

 memory(kbytes)       unlimited

 coredump(blocks)     unlimited

 nofiles(descriptors) unlimited

 threads(per process) unlimited

 processes(per user)  unlimited

 # ulimit -a

 time(seconds)        unlimited

 file(blocks)         unlimited

 data(kbytes)         unlimited

 stack(kbytes)

 memory(kbytes)       unlimited

 coredump(blocks)     unlimited

 nofiles(descriptors) unlimited

 threads(per process) unlimited

 processes(per user)  unlimited
 # cat /etc/security/limits

 *

 * Sizes are in multiples of  byte blocks, CPU time is in seconds

 *

 * fsize      - soft file size in blocks

 * core       - soft core file size in blocks

 * cpu        - soft per process CPU time limit in seconds

 * data       - soft data segment size in blocks

 * stack      - soft stack segment size in blocks

 * rss        - soft real memory usage in blocks

 * nofiles    - soft file descriptor limit

 * fsize_hard - hard file size in blocks

 * core_hard  - hard core file size in blocks

 * cpu_hard   - hard per process CPU time limit in seconds

 * data_hard  - hard data segment size in blocks

 * stack_hard - hard stack segment size in blocks

 * rss_hard   - hard real memory usage in blocks

 * nofiles_hard - hard file descriptor limit

 *

 * The following table contains the default hard values if the

 * hard values are not explicitly defined:

 *

 *   Attribute        Value

 *   ==========    ============

 *   fsize_hard    set to fsize

 *   cpu_hard      set to cpu

 *   core_hard         -

 *   data_hard         -

 *   stack_hard

 *   rss_hard          -

 *   nofiles_hard      -

 *

 * NOTE:  A value of - implies "unlimited"

 *

 default:

         fsize = -

         core = -

         cpu = -

         data = -

         rss = -

         stack = -

         nofiles = - 

 root:

 daemon:

 bin:

 sys:

 adm:

 uucp:

 guest:

 nobody:

 lpd:

 pconsole:

         stack_hard =

         data =

         data_hard = 

 esaadmin:

         stack =

         stack_hard = 

 oracle:

 fsize = -

 core = -

 cpu = -

 data = -

 rss = -

 stack = -

 nofiles = -

 grid:

 fsize = -

 core = -

 cpu = -

 data = -

 rss = -

 stack = -

 nofiles = -

 root:

 fsize = -

 core = -

 cpu = -

 data = -

 rss = -

 stack = -

 nofiles = -
 # cat /etc/security/limits

 *

 * Sizes are in multiples of  byte blocks, CPU time is in seconds

 *

 * fsize      - soft file size in blocks

 * core       - soft core file size in blocks

 * cpu        - soft per process CPU time limit in seconds

 * data       - soft data segment size in blocks

 * stack      - soft stack segment size in blocks

 * rss        - soft real memory usage in blocks

 * nofiles    - soft file descriptor limit

 * fsize_hard - hard file size in blocks

 * core_hard  - hard core file size in blocks

 * cpu_hard   - hard per process CPU time limit in seconds

 * data_hard  - hard data segment size in blocks

 * stack_hard - hard stack segment size in blocks

 * rss_hard   - hard real memory usage in blocks

 * nofiles_hard - hard file descriptor limit

 *

 * The following table contains the default hard values if the

 * hard values are not explicitly defined:

 *

 *   Attribute        Value

 *   ==========    ============

 *   fsize_hard    set to fsize

 *   cpu_hard      set to cpu

 *   core_hard         -

 *   data_hard         -

 *   stack_hard

 *   rss_hard          -

 *   nofiles_hard      -

 *

 * NOTE:  A value of - implies "unlimited"

 *

 default:

         fsize = -

         core = -

         cpu = -

         data = -

         rss = -

         stack = -

     stack_hard = -   -->增加这个即可

         nofiles = - 

 root:

 daemon:

 bin:

 sys:

 adm:

 uucp:

 guest:

 nobody:

 lpd:

 pconsole:

         stack_hard =

         data =

         data_hard = 

 esaadmin:

         stack =

         stack_hard = 

 oracle:

 fsize = -

 core = -

 cpu = -

 data = -

 rss = -

 stack = -

 nofiles = -

 grid:

 fsize = -

 core = -

 cpu = -

 data = -

 rss = -

 stack = -

 nofiles = -

 root:

 fsize = -

 core = -

 cpu = -

 data = -

 rss = -

 stack = -

 nofiles = -

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