* [Bisected] Suspend-to-disk fails on a 32-bit x86 system since commit 92923ca
@ 2017-03-21 13:13 Evgenii Shatokhin
0 siblings, 0 replies; only message in thread
From: Evgenii Shatokhin @ 2017-03-21 13:13 UTC (permalink / raw)
To: Nathan Zimmer; +Cc: Mel Gorman, Pekka Enberg, linux-kernel
Hi,
It seems, there is a regression in the kernel that prevents
suspend-to-disk from working properly on some x86 machines with 32-bit
Linux systems (ROSA Linux, in this case).
With the mainline kernels 4.2 - 4.10, it takes more than 2 minutes from
"systemctl hibernate" command till the system powers off. When I try to
resume the system after that, the system hangs with black screen after
"Image loading progress 100%" (no ssh access, no reaction to keyboard,
etc.).
For comparison, it takes less than 10-15 seconds from "systemctl
hibernate" command till the poweroff when I use kernel 4.1, and the
system resumes OK then.
Hardware info: https://linux-hardware.org/index.php?probe=e6a06c64c7
Kernel config, just in case: http://pastebin.com/P8vb9qi6
The problem does not show up in a 64-bit system installed on the same
machine.
Bisection points at the following commit as the first "bad" one:
commit 92923ca3aacef63c92dc297a75ad0c6dfe4eab37
Author: Nathan Zimmer <nzimmer@sgi.com>
Date: Tue Jun 30 14:56:48 2015 -0700
mm: meminit: only set page reserved in the memblock region
I reverted it and suspend-to-disk and resume now work OK when I use the
mainline kernels 4.2 - 4.10.
For the kernels 4.8 - 4.10, I also had to disable CONFIG_RANDOMIZE_BASE
but that is due to an unrelated issue, which I will report separately.
Regards,
Evgenii
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2017-03-21 13:13 [Bisected] Suspend-to-disk fails on a 32-bit x86 system since commit 92923ca Evgenii Shatokhin
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