Hi Marc, hi Ian, @Ian: I am the new autofs package maintainer in Debian.
On Fr 31 Jan 2020 00:38:10 CET, Marc Lehmann wrote:
Dear Maintainer, for many years, I started automount with -t 86400000, and by now had forgotten what this was for (or whether I reported the problem). Today, I removed it and got reminded what it was supposed to work around. Effectively, when automount expires mountpoints, specifically symlink bind mounts, it will unmount the target directory. Example, with browse mode being on: auto.master:/fs /etc/auto.fs symlink -vers=4,intr,rsize=1048576,wsize=1048576,tcp,port=2049,fscauto.fs: bp -fstype=bind :/bp With this setup, doing ls /fs show a bp directory. ls /fs/bp will replace it by a symlink to /bp, then killall -USR1 automount will remove /fs/bp (which I think it shouldn't when in browse mode, bug #1) and ALSO unmount /bp (bug #2, the real problem). I guess automount simply calls umount on the symlink and then unlinks it. killall -HUP automount will bring back the ghosted /fs/bp entry. alternatively, ls /fs/bp will bring bakc the symolink, butg of course the target directory stays unmounted. I think I never reported it because this behaviour was with my own patched copy, but it is reproducible with the pristine version.
This seems like something to be discussed upstream. I Cc:ed Ian Kent, maybe he has some 2ยข to add.
Thanks+Greets, Mike -- mike gabriel aka sunweaver (Debian Developer) mobile: +49 (1520) 1976 148 landline: +49 (4351) 486 14 27 GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31 mail: sunwea...@debian.org, http://sunweavers.net
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