I'm trying to install/use the IPC::Shareable
module on RedHat 7, which I clean installed over 6.2 this morning.
The module compiles fine, but will fail a 'make test' with the message:
Munged shared memory segment (size exceeded?)
advises: make test may fail with the message
'Munged shared memory segment (size exceeded?)'
This is likely because the tests are exceeding the maximum size of a
shared memory segment (SHMMAX) or the system-wide limit on shared
memory size (SHMALL). The only solution is to increase SHMMAX and/or
SHMALL for the system. Consult your system documentation for how to
OK, I found how to set a new SHMMAX (/proc/sys/kernel/shmmax), and
set it to 80M, 100M, 200M, and 500M without any change. Has anyone else
run into this? Any ideas?
more info: the module will install, but using the included example
in the man page, i get the memory seg munged message, and also this error:
IPC::Shareable::SharedMem: shmget: No such file or directory
at /usr/lib/perl5/site_perl/5.6.0/IPC/Shareable.pm line 456
hmmmm.... isn't shmget part of the standard SysV IPC tools?
or is this just a symptom of the larger problem?