[Bugme-new] [Bug 10898] New: make oldconfig does not work - user is asked every config question

bugme-daemon at bugzilla.kernel.org bugme-daemon at bugzilla.kernel.org
Thu Jun 12 06:23:02 PDT 2008


http://bugzilla.kernel.org/show_bug.cgi?id=10898

           Summary: make oldconfig does not work - user is asked every
                    config question
           Product: Other
           Version: 2.5
     KernelVersion: 2.6.25.6
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Configuration
        AssignedTo: zippel at linux-m68k.org
        ReportedBy: tuxman99999 at gmail.com


Latest working kernel version: 2.6.24.7
Earliest failing kernel version: 2.6.25
Distribution: Slackware 12.1
Hardware Environment: Intel P4 (32-bit), 4GB RAM, lots of hard disk space
Software Environment: GCC 4.2.3, GNU Make 3.81

Problem Description: make oldconfig on 2.6.25[.x] appears to work like make
config - user is asked to choose every config option.

Steps to reproduce:

*** VERIFY OLDER VERSION IS NOT BROKEN ***

1.  Configure, compile, and install 2.6.24.7 (and modules).  .config copied to
/boot along with System.map and vmlinuz.  System rebooted to this kernel.

2.  Extract 2.6.24.5 tarball.  cd into linux-2.6.24.5 and make oldconfig. 
Shell reports that .config was created.

3.  make menuconfig and visually verify the standard config options I've chosen
for the running 2.6.24.7 are unchanged.  Works fine.

*** FAILURE STEPS ***

4.  While still running 2.6.24.7, extract 2.6.25.6 from kernel.org tarball.

5.  cd into linux-2.6.25.6 and make oldconfig.  I'm now asked to choose every
kernel config option beginning with "Prompt for development and/or incomplete
code/drivers (EXPERIMENTAL) [Y/n/?]" etc.

6.  After answering 15 or 20 questions, I ctrl-C'ed out of this, realizing that
this is not expected behavior for make oldconfig.

I briefly reported this on LWN (http://lwn.net/Articles/285771/), and Ingo
requested that I report it here.

Please note that I experienced the exact same behavior with 2.6.25.4.


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