https://bugzilla.kernel.org/show_bug.cgi?id=48291
Summary: write to NVS at S3 takes 40 seconds on Bromolow system
Product: ACPI
Version: 2.5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Sleep-Wake
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
I have the following memory reserved for NVS:
[kristen@otc-bromolow ~]$ dmesg | grep "ACPI NVS"
[ 0.000000] BIOS-e820: [mem 0x00000000ab9a6000-0x00000000bba26fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bede0000-0x00000000befdffff] ACPI NVS
on s3 resume, it takes about 40 seconds to write this memory, making suspend
take 40 seconds longer than it should. I can use nonvs, but then we don't
write the memory out at s4 time, which we should according to the ACPI spec.
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