| To get encrypted swsusp to work, try this: |
| |
| cryptosuspend: |
| #!/bin/bash |
| PASSPHRASE=`cat /dev/urandom | uuenpipe | head -3 | tail -1` |
| echo $PASSPHRASE | gpg -e -r Suspendkey > /tmp/swsusp.Suspendkey |
| # gpg-keygen, call the key 'Suspendkey'. Provide passphrase you want to use as resume password. |
| echo $PASSPHRASE | ./suspend -p /dev/hda1 |
| |
| cryptoresume: |
| #!/bin/bash |
| echo 'passphrase' | gpg -d -r Suspendkey --passphrase-fd 0 /tmp/swsusp.Suspendkey | ./resume -p /dev/hda1 |
| |
| Known problems with freezer: |
| |
| 1) stress -d 5 --hdd-bytes 100M -i 5 -c 5 |
| |
| breaks it most of the time. |
| |
| 2) mysqld breaks it. |
| |
| https://bugzilla.novell.com/show_bug.cgi?id=71076 |
| |
| This simple program should demonstrate the bug |
| |
| #include <signal.h> |
| #include <errno.h> |
| #include <stdlib.h> |
| |
| int main(int argc,char ** argv) { |
| sigset_t set; |
| int sig; |
| sigemptyset(&set); |
| sigprocmask(SIG_BLOCK,&set,NULL); |
| while(sigwait(&set,&sig)==EINTR); |
| return 0; |
| } |
