[Bug 24330] Re: CIFS mount blocks suspend/hibernate

Chris J Arges 24330 at bugs.launchpad.net
Wed Nov 9 14:32:21 UTC 2011


** Description changed:

- If I have any network shares mounted via CIFS, the cifsd process prevents klaptop from suspending/hibernating.    
- Unmounting manually first fixes everything. Mounting using smbfs instead of cifs lets suspend/hibernate work    
- fine, but that's not a good solution, as smbfs is not the preferred solution. I'm not sure if this is specific   
- to klaptop, or if it applies to all power management, as klaptop is the only way I can get my laptop to   
- suspend.   
-    
+ SRU Justification:
+ 
+ Impact: 
+ If a cifs share is mounted in ubuntu-natty and we try to suspend cifsd prevents the laptop from suspending.
+ 
+ Fix:
+ Apply f06ac72e929115f2772c29727152ba0832d641e4 cherry picked from upstream commit to ubuntu-natty linux kernel.
+ This small patch allows the laptop to suspend even if a cifs share is mounted.
+ 
+ Testcase:
+ Boot ubuntu-natty. Suspend. Resume. (This should work.)
+ Boot ubuntu-natty. Mount cifs share. Suspend. (This will not work.)
+ 
+ --
+ 
+ If I have any network shares mounted via CIFS, the cifsd process prevents klaptop from suspending/hibernating.
+ Unmounting manually first fixes everything. Mounting using smbfs instead of cifs lets suspend/hibernate work
+ fine, but that's not a good solution, as smbfs is not the preferred solution. I'm not sure if this is specific
+ to klaptop, or if it applies to all power management, as klaptop is the only way I can get my laptop to
+ suspend.
+ 
  This is Kubuntu 5.10, kernel 2.6.12-9, KDE 3.4.3

** Patch added: "cherry picked from f06ac72e929115f2772c29727152ba0832d641e4"
   https://bugs.launchpad.net/ubuntu/+source/kdeutils/+bug/24330/+attachment/2590788/+files/0001-cifs-freezer-add-wait_event_freezekillable-and-have-.patch

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https://bugs.launchpad.net/bugs/24330

Title:
  CIFS mount blocks suspend/hibernate

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