#9735 NORM Future : os9 does not dim the screen

[Zarro Boogs per Child]

#9735: os9 does not dim the screen
-------------------------------------------+--------------------------------
           Reporter:  mikus                |       Owner:  cjb                              
               Type:  defect               |      Status:  new                              
           Priority:  normal               |   Milestone:  Future Release                   
          Component:  power manager (OHM)  |     Version:  Development build as of this date
         Resolution:                       |    Keywords:                                   
        Next_action:  reproduce            |    Verified:  0                                
Deployment_affected:                       |   Blockedby:                                   
           Blocking:                       |  
-------------------------------------------+--------------------------------

Comment(by pgf):

 it's clear from the powerd.trace and dmesg logs that the kernel mikus
 booted has no dcon driver.

 it's also clear that something else is wrong:

 {{{
 [ 2278.480686] BUG: sleeping function called from invalid context at
 kernel/mutex.c:94
 347     [ 2278.480686] in_atomic(): 1, irqs_disabled(): 0, pid: 747, name:
 cp
 348     [ 2278.480686] Pid: 747, comm: cp Tainted: G        W
 2.6.31_xo1-20091119.1934.1.olpc.ecb7a9e #1
 349     [ 2278.480686] Call Trace:
 350     [ 2278.480686]  [<c0415316>] __might_sleep+0xd6/0xdb
 351     [ 2278.480686]  [<c06a2072>] mutex_lock+0x15/0x23
 352     [ 2278.480686]  [<c06337cd>] seq_show+0x6d/0x120
 353     [ 2278.480686]  [<c0499e41>] seq_read+0x1b5/0x366
 354     [ 2278.480686]  [<c0499c8c>] ? seq_read+0x0/0x366
 355     [ 2278.480686]  [<c04ba868>] proc_reg_read+0x6a/0x84
 356     [ 2278.480686]  [<c0485d37>] vfs_read+0x88/0x115
 357     [ 2278.480686]  [<c04ba7fe>] ? proc_reg_read+0x0/0x84
 358     [ 2278.480686]  [<c0485e76>] sys_read+0x43/0x70
 359     [ 2278.480686]  [<c04033f4>] sysenter_do_call+0x12/0x26
 360     [ 2279.539062] BUG: sleeping function called from invalid context
 at kernel/mutex.c:94
 361     [ 2279.539094] in_atomic(): 1, irqs_disabled(): 0, pid: 763, name:
 cp
 362     [ 2279.539127] Pid: 763, comm: cp Tainted: G        W
 2.6.31_xo1-20091119.1934.1.olpc.ecb7a9e #1
 363     [ 2279.539153] Call Trace:
 364     [ 2279.539205]  [<c0415316>] __might_sleep+0xd6/0xdb
 365     [ 2279.539248]  [<c06a2072>] mutex_lock+0x15/0x23
 366     [ 2279.539288]  [<c06337cd>] seq_show+0x6d/0x120
 367     [ 2279.539326]  [<c0499e41>] seq_read+0x1b5/0x366
 368     [ 2279.539362]  [<c0499c8c>] ? seq_read+0x0/0x366
 369     [ 2279.539397]  [<c04ba868>] proc_reg_read+0x6a/0x84
 370     [ 2279.539438]  [<c0485d37>] vfs_read+0x88/0x115
 371     [ 2279.539468]  [<c04ba7fe>] ? proc_reg_read+0x0/0x84
 372     [ 2279.539502]  [<c0485e76>] sys_read+0x43/0x70
 373     [ 2279.539537]  [<c04033f4>] sysenter_do_call+0x12/0x26
 ....continues....
 }}}

-- 
Ticket URL: <http://dev.laptop.org/ticket/9735#comment:3>
One Laptop Per Child <http://laptop.org/>
OLPC bug tracking system