Newer kernels are far slower with CIFS mounts
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Ubuntu 10.04 with uname -a: Linux ubuntu 2.6.32-
grep cifs fstab:
//10.0.
The ControlPanel share is a PHP project. I can read the files within it over the CIFS share without any problem using less, vim, etc. However, when I run 'phpunit' nothing happens except on the console where I see:
CIFS VFS: Server not responding
CIFS VFS: No response for cmd 50 for mid 1234
Repeat the No response line every few seconds. If I ctrl+C the phpunit execution it takes a few seconds to quit.
The Ubuntu machine is actually a vmware-server instance. The vmware -server runs in the WinXP machine that hosts the samba share, so that CIFS link is running over a vmware local network. This link should be very fast and was running perfectly fine prior to this new kernel being installed this morning. I'm about to test with the previous kernel.
I have also tried with OplockEnabled set to zero without change. Sometimes (not always) if I try to access the web site itself on the Ubuntu VM, it works, sometimes it never responds.
affects: | samba (Ubuntu) → linux (Ubuntu) |
Linux ubuntu 2.6.32- 22-generic- pae #36-Ubuntu SMP Thu Jun 3 23:14:23 UTC 2010 i686 GNU/Linux still hangs with console errors this time though I see:
CFS VFS: Send error in FindClose = -9
I can access the projected as an ubuntu-hosted site mounted via CIFS and I can get to the files no problem, but phpunit just hangs there with these console errors slowly trickling out.