#121: flashrom runtime error

[coreboot]

#121: flashrom runtime error
---------------------------------+------------------------------------------
   Reporter:  lymanrb@…          |          Owner:  somebody
       Type:  defect             |         Status:  new     
   Priority:  major              |      Milestone:          
  Component:  flashrom           |        Version:          
   Keywords:                     |   Dependencies:          
Patchstatus:  there is no patch  |  
---------------------------------+------------------------------------------
 I got such errors when running flashrom.
 {{{
 Calibrating delay loop... OK.
 Can't mmap memory using /dev/mem: Invalid argument
 }}}

 My env
 {{{
 Linux xxx 2.6.28-ARCH #1 SMP PREEMPT Sun Jan 18 19:41:52 UTC 2009 x86_64
 Intel(R) Core(TM)2 Duo CPU T7250 @ 2.00GHz GenuineIntel GNU/Linux

 core/pciutils 3.0.3-1 [installed] (base)
      PCI bus configuration space access library and tools
 core/zlib 1.2.3.3-3 [installed] (base)
      A compression/decompression Library

 $ ./flashrom -R
 flashrom r3869
 }}}

-- 
Ticket URL: <http://tracker.coreboot.org/trac/coreboot/ticket/121>
coreboot <http://www.coreboot.org/>

#121: Failure to mmap /dev/mem needs a better error message (was: flashrom runtime error)

[coreboot]

#121: Failure to mmap /dev/mem needs a better error message
---------------------------------+------------------------------------------
   Reporter:  lymanrb@…          |          Owner:  stuge   
       Type:  enhancement        |         Status:  assigned
   Priority:  minor              |      Milestone:          
  Component:  flashrom           |        Version:          
   Keywords:                     |   Dependencies:          
Patchstatus:  there is no patch  |  
---------------------------------+------------------------------------------
Changes (by stuge):

  * owner:  somebody => stuge
  * priority:  major => minor
  * type:  defect => enhancement
  * status:  new => assigned


Comment:

 This happens because CONFIG_NONPROMISC_DEVMEM (pre 2008-07),
 CONFIG_STRICT_DEVMEM or CONFIG_X86_PAT are set in your kernel.

 Although flashrom can do nothing about any of these, I will add this
 information to the error message, so I'm not closing the ticket just yet.

-- 
Ticket URL: <http://tracker.coreboot.org/trac/coreboot/ticket/121#comment:1>
coreboot <http://www.coreboot.org/>

#121: Failure to mmap /dev/mem needs a better error message (was: flashrom runtime error)

[Paul Menzel]

Dear Peter,


Am Donnerstag, den 22.01.2009, 16:24 +0000 schrieb coreboot:

  This happens because CONFIG_NONPROMISC_DEVMEM (pre 2008-07),
  CONFIG_STRICT_DEVMEM or CONFIG_X86_PAT are set in your kernel.
 
  Although flashrom can do nothing about any of these, I will add this
  information to the error message, so I'm not closing the ticket just yet.
There is an entry in the FAQ for this issue [1].


Thanks,

Paul


[1]  http://www.coreboot.org/FAQ#Can.27t_mmap_memory_using_.2Fdev.2Fmem:_Inval...

#121: Failure to mmap /dev/mem needs a better error message (was: flashrom runtime error)

[Peter Stuge]

Paul Menzel wrote:
 >  Although flashrom can do nothing about any of these, I will
add
 >  this information to the error message, so I'm not closing the
 >  ticket just yet.
 
 There is an entry in the FAQ for this issue [1].
Thanks! Might include the URL in the error message then.


//Peter

#121: Failure to mmap /dev/mem needs a better error message

[Carl-Daniel Hailfinger]

On 22.01.2009 17:52, Peter Stuge wrote:
 Paul Menzel wrote:
   
>>  Although flashrom can do nothing about any of these, I will add
>>  this information to the error message, so I'm not closing the
>>  ticket just yet.
>>       
> There is an entry in the FAQ for this issue [1].
>     

 Thanks! Might include the URL in the error message then.
Any change which improves the error message (with an URL or a detailed
explanation (preferred because it is usable if you have no internet
connection)) is
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net&gt;

Regards,
Carl-Daniel

-- 
http://www.hailfinger.org/

#121: Failure to mmap /dev/mem needs a better error message

[coreboot]

#121: Failure to mmap /dev/mem needs a better error message
----------------------------------+-----------------------------------------
    Reporter:  lymanrb@…          |         Owner:  stuge            
        Type:  enhancement        |        Status:  closed           
    Priority:  minor              |     Milestone:                   
   Component:  flashrom           |       Version:                   
  Resolution:  fixed              |      Keywords:                   
Dependencies:                     |   Patchstatus:  there is no patch
----------------------------------+-----------------------------------------
Changes (by stuge):

  * status:  assigned => closed
  * resolution:  => fixed


Comment:

 More info in error message added in r3889.

-- 
Ticket URL: <http://tracker.coreboot.org/trac/coreboot/ticket/121#comment:2>
coreboot <http://www.coreboot.org/>

#121: Failure to mmap /dev/mem needs a better error message

[coreboot]

#121: Failure to mmap /dev/mem needs a better error message
----------------------------------+-----------------------------------------
    Reporter:  lymanrb@…          |         Owner:  stuge            
        Type:  enhancement        |        Status:  closed           
    Priority:  minor              |     Milestone:                   
   Component:  flashrom           |       Version:                   
  Resolution:  fixed              |      Keywords:                   
Dependencies:                     |   Patchstatus:  there is no patch
----------------------------------+-----------------------------------------

Comment(by lymanrb@…):

 I've seen the info you added in source code. However, I didn't get it
 printed when I recompile and run.

 I debugged a little and found that the error occurred at line 193 of
 cbtable.c, the errno is 22. I'm not sure whether this helps.

-- 
Ticket URL: <http://tracker.coreboot.org/trac/coreboot/ticket/121#comment:3>
coreboot <http://www.coreboot.org/>

#121: Failure to mmap /dev/mem needs a better error message

[coreboot]

#121: Failure to mmap /dev/mem needs a better error message
----------------------------------+-----------------------------------------
    Reporter:  lymanrb@…          |         Owner:  stuge            
        Type:  enhancement        |        Status:  closed           
    Priority:  minor              |     Milestone:                   
   Component:  flashrom           |       Version:                   
  Resolution:  fixed              |      Keywords:                   
Dependencies:                     |   Patchstatus:  there is no patch
----------------------------------+-----------------------------------------

Comment(by stuge):

 Helps a lot! Sloppy me didn't catch all occurences of mmap().

 Fixed in r3890. Thanks!

-- 
Ticket URL: <http://tracker.coreboot.org/trac/coreboot/ticket/121#comment:4>
coreboot <http://www.coreboot.org/>

#121: Failure to mmap /dev/mem needs a better error message (was: flashrom runtime error)

[Niels Ole Salscheider]

Hello,

  This happens because CONFIG_NONPROMISC_DEVMEM (pre 2008-07),
  CONFIG_STRICT_DEVMEM or CONFIG_X86_PAT are set in your kernel.

  Although flashrom can do nothing about any of these, I will add this
  information to the error message, so I'm not closing the ticket just yet.
I did not try it but this kernel patch may fix the issue with CONFIG_X86_PAT 
since flashrom tries to mmap the first MB in cbtable.c:
http://bugzilla.kernel.org/show_bug.cgi?id=12372

Kind regards

Ole

#121: Failure to mmap /dev/mem needs a better error message

[coreboot]

#121: Failure to mmap /dev/mem needs a better error message
----------------------------------+-----------------------------------------
    Reporter:  lymanrb@…          |         Owner:  stuge            
        Type:  enhancement        |        Status:  closed           
    Priority:  minor              |     Milestone:                   
   Component:  flashrom           |       Version:                   
  Resolution:  fixed              |      Keywords:                   
Dependencies:                     |   Patchstatus:  there is no patch
----------------------------------+-----------------------------------------

Comment(by stuge):

 http://bugzilla.kernel.org/show_bug.cgi?id=12372 is possibly related to
 CONFIG_X86_PAT being problematic here, but no testing has been made to
 verify if that is the case. All test results most welcome. Thanks to Niels
 Ole Salscheider for pointing this out.

-- 
Ticket URL: <http://tracker.coreboot.org/trac/coreboot/ticket/121#comment:5>
coreboot <http://www.coreboot.org/>

#121: Failure to mmap /dev/mem needs a better error message

[coreboot]

#121: Failure to mmap /dev/mem needs a better error message
----------------------------------+-----------------------------------------
    Reporter:  lymanrb@…          |         Owner:  stuge            
        Type:  enhancement        |        Status:  closed           
    Priority:  minor              |     Milestone:                   
   Component:  flashrom           |       Version:                   
  Resolution:  fixed              |      Keywords:                   
Dependencies:                     |   Patchstatus:  there is no patch
----------------------------------+-----------------------------------------

Comment(by dahuletam):

 interesting stuff hope it works.

-- 
Ticket URL: <http://tracker.coreboot.org/trac/coreboot/ticket/121#comment:6>
coreboot <http://www.coreboot.org/>