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Posts: 2,152 | Thanked: 1,490 times | Joined on Jan 2006 @ Czech Republic
#40
Originally Posted by solca View Post
Not quite correct, in older kernels it used to not let trigger sleep modes when serials were enabled per the UART clocks, really recent kernels have some bright UART clock management that sleep when serial inactivity is detected so full PM applies.
so 2.6.21 from latest Diablo is old or recent regarding this serial code? I guess still the old one. I forgot you run recent kernels so the one doing the kexec for you was not the old one. I'm trying this with 2.6.21.

Originally Posted by solca View Post
FYI I was able to kexec a kernel without serial-console flag when I insert printk delays in the kexeced kernel
I see. What about delay just before jumping to new kernel or what about switching to slower CPU clock before?
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