I had used the information from the wiki page DebuggingKernelSuspend
"resume-trace" debugging procedure for finding buggy drivers
and made the system suspend by
sudo sh -c "sleep 720 && sync && echo 1 > /sys/power/pm_trace && pm-suspend"
i.e. wait 12 minutes before suspend. So dmesg.log4 may contain trace info from
suspend/resume.
My earlier assumption that autofs unmounts the volume seems to be
incorrect, point 2. in prerequisites.
There are four conditions:
1. a file is opened for writing on a nfs-mounted volume that autofs mounts AND
2. the system is suspended
3. the system is resumed
4. a write operation to the "open" file is performed
==> it is impossible to access the volume on the server
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https://bugs.launchpad.net/bugs/1544462
Title:
automount fails on resume after suspend if file open for writing
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