Openmoko Bug #2135: write kernel crash message somewhere where it can be retrieved after reboot?

[Openmoko Public Trac]

#2135: write kernel crash message somewhere where it can be retrieved after
reboot?
-----------------------------+----------------------------------------------
 Reporter:  lindi            |          Owner:  openmoko-kernel
     Type:  enhancement      |         Status:  new            
 Priority:  normal           |      Milestone:                 
Component:  System Software  |        Version:  unspecified    
 Severity:  normal           |       Keywords:                 
 Haspatch:  0                |      Blockedby:                 
Estimated:                   |    Patchreview:                 
 Blocking:                   |   Reproducible:                 
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Comment(by lindi):

 stable-tracking branch has kexec support and it's enabled by default in
 ./arch/arm/configs/gta02-moredrivers-defconfig so I built the userland
 package and tried

 {{{
 sudo kexec -l /boot/uImage2.bin --append="`cat /proc/cmdline`"
 sudo kexec -e
 }}}

 but just got WSOD (first time I have ever seen WSOD btw!). lsusb does not
 show the phone as usb device so the phone did not just boot without
 display working. No leds are blinking or lit.

-- 
Ticket URL: <https://docs.openmoko.org/trac/ticket/2135#comment:7>
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