From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; Q312461) Description of problem: ipcs does not list all of the shared memory segments on any alpha machine running Redhat 7.1 or later (versions previous to 7.1 are untested). It appears to only list one or two shared memory segments and not list the rest, or sometimes it simply does not list any. It then becomes impossible to delete the shared memory segments that are not shown because getting their key is impossible. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: ON ALPHA PLATFORM 1. Run any program that creates a shared memory segment for a user (the program given by the URL above creates a shared memory segment when it initializes) 2. Run the same program with another user 3. Execute 'ipcs -m' 4. Execute 'ipcs -u' Actual Results: For #3 in the steps to reproduce, it will either not show any memory segments or may show just one. For #4, it will indicate that there are 2 outstanding shared memory segments (or more if other programs have some as well such as gnome). Expected Results: You should see each user's shared memory segments with their key and so on after executing #3. #4's output is correct. Additional info: [after executing the steps to reproduce, here is what the output is (with username and node name removed for security purposes)]. Note that directly listing the shared memory segments shows zero segments, while summarizing the shared memory segments indicates there are 2 segments. There is clearly a mismatch here. [user@computer ~]$ ipcs -m ------ Shared Memory Segments -------- key shmid owner perms bytes nattch status [user@computer ~]$ ipcs -u ------ Shared Memory Status -------- segments allocated 2 pages allocated 40 pages resident 40 pages swapped 0 Swap performance: 0 attempts 0 successes ------ Semaphore Status -------- used arrays = 0 allocated semaphores = 0 ------ Messages: Status -------- allocated queues = 0 used headers = 0 used space = 0 bytes [user@computer ~]$
ipcs are part of util-linux, not binutils. But RHL for Alpha platform is not supported anymore. If you are able to reproduce this with some currently supported distribution, please reopen.