#9100 NORM 10.1.2: 2.6.27+ early boot crashes on XO1
Zarro Boogs per Child
bugtracker at laptop.org
Sun Jul 25 00:59:01 EDT 2010
#9100: 2.6.27+ early boot crashes on XO1
--------------------------------+-------------------------------------------
Reporter: dsd | Owner: dsaxena
Type: defect | Status: new
Priority: normal | Milestone: 10.1.2
Component: kernel | Version: Development build as of this date
Resolution: | Keywords:
Next_action: diagnose | Verified: 0
Deployment_affected: | Blockedby:
Blocking: |
--------------------------------+-------------------------------------------
Comment(by wmb at firmworks.com):
I like dsaxena's idea of using early_printk(). You can put calls to that
in start_kernel() to see how far through that it is getting.
If early_printk() doesn't work early enough, you can do a poor-man's
serial character output routine with:
{{{
while ((inb(0x3fd) & 0x20) == 0)
;
outb('A', 0x3f8);
while ((inb(0x3fd & 0x40) == 0)
;
}}}
Replace 'A' with different characters, or make a function.
--
Ticket URL: <http://dev.laptop.org/ticket/9100#comment:27>
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