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* 4.16 regression: s2ram broken on non-PAE i686
@ 2018-02-27 12:54 Woody Suwalski
  2018-02-28  8:59 ` Thomas Gleixner
  0 siblings, 1 reply; 8+ messages in thread
From: Woody Suwalski @ 2018-02-27 12:54 UTC (permalink / raw)
  To: Linux Kernel List, the arch/x86 maintainers, William Grant

There is a problem with s2ram on 4.16, and it has now been propagated
to 4.15 and 4.14 stable updates.

It originates from

commit 62c00e6122a6b5aa7b1350023967a2d7a12b54c9
Author: William Grant <william.grant@canonical.com
<mailto:william.grant@canonical.com>>
Date:   Tue Jan 30 22:22:55 2018 +1100

    x86/mm: Fix overlap of i386 CPU_ENTRY_AREA with FIX_BTMAP

s2ram works OK on PAE kernels, breaks badly on non-PAE. I do not think
that the problem can be duplicated in VMPlayer, but it is 100%
reproducible on a "real" hardware.
System goes to sleep OK, but when woken - it reboots the PC.

The issue is tracked in Bugzilla bug 198763
[https://bugzilla.kernel.org/show_bug.cgi?id=198763]

Thanks, Woody

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2018-03-01  9:31 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-02-27 12:54 4.16 regression: s2ram broken on non-PAE i686 Woody Suwalski
2018-02-28  8:59 ` Thomas Gleixner
2018-02-28 10:46   ` Woody Suwalski
2018-02-28 21:20     ` Thomas Gleixner
2018-03-01  2:45       ` Woody Suwalski
2018-03-01  7:35         ` Thomas Gleixner
2018-03-01  8:51       ` [tip:x86/pti] x86/cpu_entry_area: Sync cpu_entry_area to initial_page_table tip-bot for Thomas Gleixner
2018-03-01  9:31         ` Ingo Molnar

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