IBM Support

Tivoli Storage Manager operations might hang on RHEL 6.6

Flash (Alert)


RHEL 6.6 contains a kernel defect, which can cause Tivoli Storage Manager operations to hang on operating system semop() calls. This issue was introduced in kernel level 2.6.32-434.


Tivoli Storage Manager operations might hang. This kernel defect can produce any of the following symptoms (other symptoms may also be possible):

1) Tivoli Storage Manager sessions or processes hang.
2) Tivoli Storage Manager server hangs during server initialization or halt.
3) Tivoli Storage Manager server hangs.

If a stack is generated from the application process that uses gstack, the stack will show the semop() function at the top.

For example:

The semaphore release defect is addressed in RHEL bugzilla 1165277. This problem was introduced in kernel level 2.6.32-434 and is fixed in kernel level 2.6.32-504.8.1.

RHEL 6.5 was released with kernel version 2.6.32-431 and is not affected.
RHEL 6.6 was released with kernel version 2.6.32-504 and is affected.
RHEL 7.0 is not affected.

Contact Red Hat support to obtain the fixed kernel to apply on RHEL 6.6.

Related information

RHEL bugzilla 1165277

Document information

More support for: Tivoli Storage Manager

Software version: All Supported Versions

Operating system(s): Linux

Software edition: All Editions

Reference #: 1696086

Modified date: 03 June 2015