[oe-issues] [Bug 1831] New: GPE System hangs during shutdown/reboot

[bugzilla-daemon at tinman.treke.net]

http://bugs.openembedded.org/show_bug.cgi?id=1831

           Summary: GPE System hangs during shutdown/reboot
           Product: Openembedded
           Version: unspecified
          Platform: ARM
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Build
        AssignedTo: openembedded-issues at lists.openembedded.org
        ReportedBy: andrew.paulsen at gmail.com
         QAContact: tinderbox-oe at gmx.net


When the gpe-dm shutdown script is run (/etc/rc6.d/K20gpe-dm), it correctly
finds and kills the gpe-dm process.  Following this, it enters an infinite loop
copying /dev/null into /dev/fb0 with the following command:

dd if=/dev/zero of=/dev/fb0 2>/dev/null || dd if=/dev/zero of=/dev/fb/0
2>/dev/null

This is on kernel 2.6.16.  According to [1], this command may have been valid
for kernels older than 2.6.15, but no longer is.  Simply removing this line
seems to allow the system to reboot properly.  Is there a better way to blank
the screen than this?  Could we run bootsplash during shutdown instead so the
user has something to look at while everything is shutting down?  The shutdown
process is just long enough (~13s) to be slightly disconcerting with the screen
blanked.

[1] http://www.ussg.iu.edu/hypermail/linux/kernel/0604.1/1425.html


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