Description of Problem: The mount of cmsfs hangs. Version-Release number of selected component (if applicable): Linux version 2.4.9-17 (karsten.de) (gcc version 2.95.3 20010315 (release)) #1 SMP Fri Nov 23 19:45:36 CET 2001 But it hangs in all recent kernels in the same way. How Reproducible: Always Steps to Reproduce: 1. ipl cms 2. format 201 b 3. access 201 b 4. copyfile kern00t1 img a = = b 5. release b 6. ipl 200 -- Linux 7. login as root 8. modprobe cmsfs 9. mount -t cms -r /dev/dasdb1 /mnt/a Actual Results: [zaitcev@test1 zaitcev]$ ps alx| grep mount 100 0 1040 1013 9 0 1684 608 down D pts/0 0:00 mount -t cm Seems like a recursive semaphore somewhere. Expected Results: Mount succeeding. Additional Information: ^-t does not show stacks on s390 The cmsfs is not included into Linus or Marcelo trees, it was in -ac only. We probably do not want to support cmsfs.
Maybe this only works if we have configured minidisks within VM? This is at least unsupported at the moment, though it might be useful for some customers. Florian La Roche
Created attachment 40507 [details] Minimal fix
I fixed it, but supporting cmsfs is not worth the trouble unless someone wants to give non-root users access to CMS minidisks. Good userspace tools are available.