Documentation/power/swsusp.rst

32    power states like "standby", which normally don't turn USB off.)
47 - If you feel ACPI works pretty well on your system, you might try::
51 - If you would like to write hibernation image to swap and then suspend
56 - If you have SATA disks, you'll need recent kernels with SATA suspend
58   are built into kernel -- not modules. [There's way to make
66 before suspend (it is limited to around 2/5 of available RAM by default).
68 - The resume process checks for the presence of the resume device,
72 - The resume process may be triggered in two ways:
81      read-only) otherwise data may be corrupted.
87 Last revised: 2003-10-20 by Pavel Machek
90 -------------------------
163     between 0-640KB. That way, I'd have to make sure that 0-640KB is free
181   suspend-to-disk which is available as separate patches for 2.4 and 2.6
196   kernel threads are controlled during hibernation or system-wide suspend (on
197   some architectures).  See freezing-of-tasks.txt for details.
219   it's useless for suspend-to-disk. (And I do not see how you could use
220   it for suspend-to-ram, I hope you do not want that).
262     cat /proc/[0-9]*/maps | grep / | sed 's:.* /:/:' | sort -u | while read file
264       test -f "$file" && cat "$file" > /dev/null
267   after resume. swapoff -a; swapon -a may also be useful.
279       running system, user asks for suspend-to-disk
295       turn the power off
301       running system, user asks for suspend-to-disk
304       but with resume-from-initrd, no one knows)
321   First of all: it is not a replacement for dm-crypt encrypted swap.
334   broken in weeks later and sensitive data which you thought were
360   swsusp-and-swap-files.txt for details.
385   What information is useful for debugging suspend-to-disk problems?
389   is broken, it is usually some kernel driver, therefore trying with as
397   How can distributions ship a swsusp-supporting kernel with modular
403   anything, not even read-only mount, or you are going to lose your
410   If you want to see any non-error kernel messages on the virtual
419 	if [ $LOGLEVEL -lt 5 ]; then
425         echo -n disk > /sys/power/state
431 	if [ $RET -ne 0 -a $IMG_SZ -ne 0 ]; then # try again with minimal image size
433                 echo -n disk > /sys/power/state
448   In fact, even with "-o sync" you can lose data if your programs have
455   Your system might well support low-power modes for its USB controllers
457   modes like "suspend-to-RAM" or "standby".  (Don't write "disk" to the
469   There is a work-around for this problem.  For more information, see
470   Documentation/driver-api/usb/persist.rst.
473   Can I suspend-to-disk using a swap partition under LVM?
481     echo -n "$major:$minor" > /sys/power/resume
502   slow, take a look at suspend.sf.net -- userland suspend is faster and