Semi-working patch for amd64 suspend/resume
mav at FreeBSD.org
Sun Nov 30 17:42:45 PST 2008
Alexander Motin wrote:
> As result, I have found, that if I am inserting:
> jmp qqq
> lines before line 98 of acpi_switch.S:
> movl $MSR_MTRRdefType, %ecx
> movl WAKEUP_CTX(mtrr), %eax
> system hangs, but if I insert it just after them - system reboots.
> With just commenting this three lines I was able to get successful
> suspend/resume with UP amd64 kernel!!!
> Here is problems I still have now:
> - SMP kernel resume is not working, system reboots while doing
> - SATA controller does not resumes correctly, it dies for some reason,
> reporting timeouts on any request;
This one is not a problem anymore. Seems to be fixed.
> - text mode video does not restores on resume, while Xorg graphic one
> does. hw.acpi.reset_video=1 does not help, it just hanging resume process.
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