ovl: mounting two times the same mount overlayfs will not list any directory entry anymore

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* ovl: mounting two times the same mount overlayfs will not list any directory entry anymore
@ 2017-09-12  9:38 Jordi Pujol Palomer
  2017-09-12 10:47 ` Amir Goldstein
  0 siblings, 1 reply; 5+ messages in thread
From: Jordi Pujol Palomer @ 2017-09-12  9:38 UTC (permalink / raw)
  To: overlayfs, Amir Goldstein

[-- Attachment #1: Type: text/plain, Size: 625 bytes --]

Hello,

Maybe this is another overlayfs error, only for v4.13; it works well in
previous version 4.12.

When mounting two times the same mount, overlayfs will not list any
directory entry anymore.

Attached is the script log,

Look for the line:
+lnet-remaster:361:_chroot_mount: mount -o
bind /tmp/ /tmp/live-net-remaster-Fg9o5x/chroot/tmp/

Comments:

/tmp/ is already mounted in /tmp/live-net-remaster-Fg9o5x/chroot/tmp/

after mounting /tmp another time in the same location all overlay
entries in the chroot directory disappear,
no errors are listed in the log file, dmesg or journalctl.

Thanks,

Jordi Pujol i Palomer

[-- Attachment #2: lnet-remaster-_chroot_mount.txt --]
[-- Type: text/plain, Size: 15183 bytes --]

+lnet-remaster:353:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 24
drwxr-xr-x  2 root root 2398 ago 26 09:40 bin
drwxr-xr-x  2 root root  148 set 12 10:44 boot
drwxr-xr-x  2 root root    3 set 12 10:40 dev
drwxr-xr-x  1 root root 4096 set 12 11:06 etc
drwxr-xr-x  1 root root 4096 set 12 11:06 home
lrwxrwxrwx  1 root root   33 jun 11  2016 initrd.img -> /boot/initrd.img-4.6.2-1-lnet-686
drwxr-xr-x 15 root root  399 ago  8 08:08 lib
drwxr-xr-x  2 root root    3 set 24  2009 media
drwxr-xr-x  2 root root    3 nov 26  2014 mnt
drwxr-xr-x  2 root root    3 set  4  2009 opt
dr-xr-xr-x  2 root root    3 set 12 10:40 proc
drwxr-xr-x  1 root root 4096 set 12 11:06 root
drwxr-xr-x  1 root root 4096 set 12 11:06 run
drwxr-xr-x  2 root root 3304 ago 26 09:46 sbin
drwxr-xr-x  2 root root    3 set  4  2009 srv
dr-xr-xr-x 13 root root    0 set 12 11:06 sys
drwxrwxrwt 11 root root  260 set 12 11:07 tmp
drwxr-xr-x  1 root root 4096 des 19  2011 usr
drwxr-xr-x  1 root root 4096 jun 30  2011 var
lrwxrwxrwx  1 root root   29 jun 11  2016 vmlinuz -> boot/vmlinuz-4.6.2-1-lnet-686
+lnet-remaster:354:_chroot_mount: mount -o bind /dev/ /tmp/live-net-remaster-Fg9o5x/chroot/dev
+lnet-remaster:355:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 24
drwxr-xr-x  2 root root 2398 ago 26 09:40 bin
drwxr-xr-x  2 root root  148 set 12 10:44 boot
drwxr-xr-x 19 root root 3420 set 12 11:06 dev
drwxr-xr-x  1 root root 4096 set 12 11:06 etc
drwxr-xr-x  1 root root 4096 set 12 11:06 home
lrwxrwxrwx  1 root root   33 jun 11  2016 initrd.img -> /boot/initrd.img-4.6.2-1-lnet-686
drwxr-xr-x 15 root root  399 ago  8 08:08 lib
drwxr-xr-x  2 root root    3 set 24  2009 media
drwxr-xr-x  2 root root    3 nov 26  2014 mnt
drwxr-xr-x  2 root root    3 set  4  2009 opt
dr-xr-xr-x  2 root root    3 set 12 10:40 proc
drwxr-xr-x  1 root root 4096 set 12 11:06 root
drwxr-xr-x  1 root root 4096 set 12 11:06 run
drwxr-xr-x  2 root root 3304 ago 26 09:46 sbin
drwxr-xr-x  2 root root    3 set  4  2009 srv
dr-xr-xr-x 13 root root    0 set 12 11:06 sys
drwxrwxrwt 11 root root  260 set 12 11:07 tmp
drwxr-xr-x  1 root root 4096 des 19  2011 usr
drwxr-xr-x  1 root root 4096 jun 30  2011 var
lrwxrwxrwx  1 root root   29 jun 11  2016 vmlinuz -> boot/vmlinuz-4.6.2-1-lnet-686
+lnet-remaster:356:_chroot_mount: mount -o bind /dev/pts /tmp/live-net-remaster-Fg9o5x/chroot/dev/pts
+lnet-remaster:357:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 24
drwxr-xr-x  2 root root 2398 ago 26 09:40 bin
drwxr-xr-x  2 root root  148 set 12 10:44 boot
drwxr-xr-x 19 root root 3420 set 12 11:06 dev
drwxr-xr-x  1 root root 4096 set 12 11:06 etc
drwxr-xr-x  1 root root 4096 set 12 11:06 home
lrwxrwxrwx  1 root root   33 jun 11  2016 initrd.img -> /boot/initrd.img-4.6.2-1-lnet-686
drwxr-xr-x 15 root root  399 ago  8 08:08 lib
drwxr-xr-x  2 root root    3 set 24  2009 media
drwxr-xr-x  2 root root    3 nov 26  2014 mnt
drwxr-xr-x  2 root root    3 set  4  2009 opt
dr-xr-xr-x  2 root root    3 set 12 10:40 proc
drwxr-xr-x  1 root root 4096 set 12 11:06 root
drwxr-xr-x  1 root root 4096 set 12 11:06 run
drwxr-xr-x  2 root root 3304 ago 26 09:46 sbin
drwxr-xr-x  2 root root    3 set  4  2009 srv
dr-xr-xr-x 13 root root    0 set 12 11:06 sys
drwxrwxrwt 11 root root  260 set 12 11:07 tmp
drwxr-xr-x  1 root root 4096 des 19  2011 usr
drwxr-xr-x  1 root root 4096 jun 30  2011 var
lrwxrwxrwx  1 root root   29 jun 11  2016 vmlinuz -> boot/vmlinuz-4.6.2-1-lnet-686
+lnet-remaster:358:_chroot_mount: mount -o bind /sys /tmp/live-net-remaster-Fg9o5x/chroot/sys
+lnet-remaster:359:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 24
drwxr-xr-x  2 root root 2398 ago 26 09:40 bin
drwxr-xr-x  2 root root  148 set 12 10:44 boot
drwxr-xr-x 19 root root 3420 set 12 11:06 dev
drwxr-xr-x  1 root root 4096 set 12 11:06 etc
drwxr-xr-x  1 root root 4096 set 12 11:06 home
lrwxrwxrwx  1 root root   33 jun 11  2016 initrd.img -> /boot/initrd.img-4.6.2-1-lnet-686
drwxr-xr-x 15 root root  399 ago  8 08:08 lib
drwxr-xr-x  2 root root    3 set 24  2009 media
drwxr-xr-x  2 root root    3 nov 26  2014 mnt
drwxr-xr-x  2 root root    3 set  4  2009 opt
dr-xr-xr-x  2 root root    3 set 12 10:40 proc
drwxr-xr-x  1 root root 4096 set 12 11:06 root
drwxr-xr-x  1 root root 4096 set 12 11:06 run
drwxr-xr-x  2 root root 3304 ago 26 09:46 sbin
drwxr-xr-x  2 root root    3 set  4  2009 srv
dr-xr-xr-x 13 root root    0 set 12 11:06 sys
drwxrwxrwt 11 root root  260 set 12 11:07 tmp
drwxr-xr-x  1 root root 4096 des 19  2011 usr
drwxr-xr-x  1 root root 4096 jun 30  2011 var
lrwxrwxrwx  1 root root   29 jun 11  2016 vmlinuz -> boot/vmlinuz-4.6.2-1-lnet-686
+lnet-remaster:360:_chroot_mount: mount-list
sysfs	/sys	sysfs	nodev,noexec,nosuid,relatime,rw	sysfs	0:17
proc	/proc	proc	nodev,noexec,nosuid,relatime,rw	proc	0:5
udev	/dev	devtmpfs	mode=755,nosuid,nr_inodes=978526,relatime,rw,size=3914104k	udev	0:6
devpts	/dev/pts	devpts	gid=5,mode=620,noexec,nosuid,ptmxmode=000,relatime,rw	devpts	0:18
tmpfs	/run	tmpfs	mode=755,noexec,nosuid,relatime,rw,size=786156k	tmpfs	0:19
tmpfs	/lnet	tmpfs	mode=755,relatime,rw,size=7861540k	tmpfs	0:20
/dev/sda1	/lnet/image	ext2	errors=continue,noacl,noatime,nouser_xattr,ro	/dev/sda1	8:1
/lnet/image/LneTXFCE64/00filesystem.squashfs	/lnet/00filesystem.squashfs	squashfs	noatime,ro,loop=/dev/loop0	/dev/loop0	7:0
/lnet/image/LneTXFCE64/10interfaces.squashfs	/lnet/10interfaces.squashfs	squashfs	noatime,ro,loop=/dev/loop1	/dev/loop1	7:1
/dev/sda2	/lnet/cowroot	ext4	data=ordered,relatime,rw	/dev/sda2	8:2
overlay	/	overlay	index=off,lowerdir=/lnet/00filesystem.squashfs:/lnet/10interfaces.squashfs,relatime,rw,upperdir=/lnet/cowroot/LneTXFCECOW/upper,workdir=/lnet/cowroot/LneTXFCECOW/work	overlay	0:21
tmpfs	/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861540k,mode=1777	tmpfs	0:22
tmpfs	/var/log	tmpfs	mode=755,nosuid,relatime,rw,size=7861540k	tmpfs	0:23
tmpfs	/var/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861540k,mode=1777	tmpfs	0:24
securityfs	/sys/kernel/security	securityfs	nodev,noexec,nosuid,relatime,rw	securityfs	0:7
tmpfs	/dev/shm	tmpfs	nodev,nosuid,rw,mode=1777	tmpfs	0:25
tmpfs	/run/lock	tmpfs	nodev,noexec,nosuid,relatime,rw,size=5120k,mode=1777	tmpfs	0:26
tmpfs	/sys/fs/cgroup	tmpfs	mode=755,nodev,noexec,nosuid,ro	tmpfs	0:27
cgroup	/sys/fs/cgroup/unified	cgroup2	nodev,noexec,nosuid,relatime,rw	cgroup	0:28
cgroup	/sys/fs/cgroup/systemd	cgroup	name=systemd,nodev,noexec,nosuid,relatime,rw,xattr	cgroup	0:29
pstore	/sys/fs/pstore	pstore	nodev,noexec,nosuid,relatime,rw	pstore	0:30
cgroup	/sys/fs/cgroup/cpu	cgroup	cpu,nodev,noexec,nosuid,relatime,rw	cgroup	0:31
systemd-1	/proc/sys/fs/binfmt_misc	autofs	direct,fd=32,maxproto=5,minproto=5,pgrp=1,relatime,rw,timeout=0	systemd-1	0:32
/lnet/cowroot/LneTXFCEhome	/home	none	rw,bind	/dev/sda2	8:2
/lnet/image/LneTXFCE64	/boot	none	ro,bind	/dev/sda1	8:1
debugfs	/sys/kernel/debug	debugfs	relatime,rw	debugfs	0:8
mqueue	/dev/mqueue	mqueue	relatime,rw	mqueue	0:16
hugetlbfs	/dev/hugepages	hugetlbfs	pagesize=2M,relatime,rw	hugetlbfs	0:33
/lnet/image/grub	/boot/grub	none	ro,bind	/dev/sda1	8:1
/lnet/image/grub	/lnet/image/LneTXFCE64/grub	none	ro,bind	/dev/sda1	8:1
/lnet/cowroot/JPLive	/home/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive	/lnet/cowroot/LneTXFCEhome/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-cache-amd64	/var/cache/apt	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-lib-amd64	/var/lib/apt	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/LneTXFCEhome/root	/root	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/var-spool	/var/spool	none	rw,bind	/dev/sda2	8:2
tmpfs	/run/user/1001	tmpfs	gid=100,mode=700,nodev,nosuid,relatime,rw,size=786152k,uid=1001	tmpfs	0:37
/home/JPLive/LneT-Lite-686/iso/LneT-Lite/00filesystem.squashfs	/tmp/live-net-remaster-Fg9o5x/image/00filesystem.squashfs	squashfs	relatime,ro,loop=/dev/loop2	/dev/loop2	7:2
overlay	/tmp/live-net-remaster-Fg9o5x/chroot	overlay	index=off,lowerdir=/tmp/live-net-remaster-Fg9o5x/image/00filesystem.squashfs,relatime,rw,upperdir=/home/tmp.uqIFpoBStR/upper,workdir=/home/tmp.uqIFpoBStR/work	overlay	0:39
/sys/	/tmp/live-net-remaster-Fg9o5x/chroot/sys	none	rw,bind	sysfs	0:17
/tmp/	/tmp/live-net-remaster-Fg9o5x/chroot/tmp	none	rw,bind	tmpfs	0:22
/dev/	/tmp/live-net-remaster-Fg9o5x/chroot/dev	none	rw,bind	udev	0:6
/dev/pts/	/tmp/live-net-remaster-Fg9o5x/chroot/dev/pts	none	rw,bind	devpts	0:18
/dev/pts/	/dev/pts	none	rw,bind	devpts	0:18
/sys/	/tmp/live-net-remaster-Fg9o5x/chroot/sys	none	rw,bind	sysfs	0:17
/sys/	/sys	none	rw,bind	sysfs	0:17
+lnet-remaster:361:_chroot_mount: mount -o bind /tmp/ /tmp/live-net-remaster-Fg9o5x/chroot/tmp/
+lnet-remaster:362:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
+lnet-remaster:363:_chroot_mount: mount-list
sysfs	/sys	sysfs	nodev,noexec,nosuid,relatime,rw	sysfs	0:17
proc	/proc	proc	nodev,noexec,nosuid,relatime,rw	proc	0:5
udev	/dev	devtmpfs	mode=755,nosuid,nr_inodes=978526,relatime,rw,size=3914104k	udev	0:6
devpts	/dev/pts	devpts	gid=5,mode=620,noexec,nosuid,ptmxmode=000,relatime,rw	devpts	0:18
tmpfs	/run	tmpfs	mode=755,noexec,nosuid,relatime,rw,size=786156k	tmpfs	0:19
tmpfs	/lnet	tmpfs	mode=755,relatime,rw,size=7861540k	tmpfs	0:20
/dev/sda1	/lnet/image	ext2	errors=continue,noacl,noatime,nouser_xattr,ro	/dev/sda1	8:1
/lnet/image/LneTXFCE64/00filesystem.squashfs	/lnet/00filesystem.squashfs	squashfs	noatime,ro,loop=/dev/loop0	/dev/loop0	7:0
/lnet/image/LneTXFCE64/10interfaces.squashfs	/lnet/10interfaces.squashfs	squashfs	noatime,ro,loop=/dev/loop1	/dev/loop1	7:1
/dev/sda2	/lnet/cowroot	ext4	data=ordered,relatime,rw	/dev/sda2	8:2
overlay	/	overlay	index=off,lowerdir=/lnet/00filesystem.squashfs:/lnet/10interfaces.squashfs,relatime,rw,upperdir=/lnet/cowroot/LneTXFCECOW/upper,workdir=/lnet/cowroot/LneTXFCECOW/work	overlay	0:21
tmpfs	/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861540k,mode=1777	tmpfs	0:22
tmpfs	/var/log	tmpfs	mode=755,nosuid,relatime,rw,size=7861540k	tmpfs	0:23
tmpfs	/var/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861540k,mode=1777	tmpfs	0:24
securityfs	/sys/kernel/security	securityfs	nodev,noexec,nosuid,relatime,rw	securityfs	0:7
tmpfs	/dev/shm	tmpfs	nodev,nosuid,rw,mode=1777	tmpfs	0:25
tmpfs	/run/lock	tmpfs	nodev,noexec,nosuid,relatime,rw,size=5120k,mode=1777	tmpfs	0:26
tmpfs	/sys/fs/cgroup	tmpfs	mode=755,nodev,noexec,nosuid,ro	tmpfs	0:27
cgroup	/sys/fs/cgroup/unified	cgroup2	nodev,noexec,nosuid,relatime,rw	cgroup	0:28
cgroup	/sys/fs/cgroup/systemd	cgroup	name=systemd,nodev,noexec,nosuid,relatime,rw,xattr	cgroup	0:29
pstore	/sys/fs/pstore	pstore	nodev,noexec,nosuid,relatime,rw	pstore	0:30
cgroup	/sys/fs/cgroup/cpu	cgroup	cpu,nodev,noexec,nosuid,relatime,rw	cgroup	0:31
systemd-1	/proc/sys/fs/binfmt_misc	autofs	direct,fd=32,maxproto=5,minproto=5,pgrp=1,relatime,rw,timeout=0	systemd-1	0:32
/lnet/cowroot/LneTXFCEhome	/home	none	rw,bind	/dev/sda2	8:2
/lnet/image/LneTXFCE64	/boot	none	ro,bind	/dev/sda1	8:1
debugfs	/sys/kernel/debug	debugfs	relatime,rw	debugfs	0:8
mqueue	/dev/mqueue	mqueue	relatime,rw	mqueue	0:16
hugetlbfs	/dev/hugepages	hugetlbfs	pagesize=2M,relatime,rw	hugetlbfs	0:33
/lnet/image/grub	/boot/grub	none	ro,bind	/dev/sda1	8:1
/lnet/image/grub	/lnet/image/LneTXFCE64/grub	none	ro,bind	/dev/sda1	8:1
/lnet/cowroot/JPLive	/home/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive	/lnet/cowroot/LneTXFCEhome/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-cache-amd64	/var/cache/apt	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-lib-amd64	/var/lib/apt	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/LneTXFCEhome/root	/root	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/var-spool	/var/spool	none	rw,bind	/dev/sda2	8:2
tmpfs	/run/user/1001	tmpfs	gid=100,mode=700,nodev,nosuid,relatime,rw,size=786152k,uid=1001	tmpfs	0:37
/home/JPLive/LneT-Lite-686/iso/LneT-Lite/00filesystem.squashfs	/tmp/live-net-remaster-Fg9o5x/image/00filesystem.squashfs	squashfs	relatime,ro,loop=/dev/loop2	/dev/loop2	7:2
overlay	/tmp/live-net-remaster-Fg9o5x/chroot	overlay	index=off,lowerdir=/tmp/live-net-remaster-Fg9o5x/image/00filesystem.squashfs,relatime,rw,upperdir=/home/tmp.uqIFpoBStR/upper,workdir=/home/tmp.uqIFpoBStR/work	overlay	0:39
/sys/	/tmp/live-net-remaster-Fg9o5x/chroot/sys	none	rw,bind	sysfs	0:17
/tmp/	/tmp/live-net-remaster-Fg9o5x/chroot/tmp	none	rw,bind	tmpfs	0:22
/dev/	/tmp/live-net-remaster-Fg9o5x/chroot/dev	none	rw,bind	udev	0:6
/dev/pts/	/tmp/live-net-remaster-Fg9o5x/chroot/dev/pts	none	rw,bind	devpts	0:18
/dev/pts/	/dev/pts	none	rw,bind	devpts	0:18
/sys/	/tmp/live-net-remaster-Fg9o5x/chroot/sys	none	rw,bind	sysfs	0:17
/sys/	/sys	none	rw,bind	sysfs	0:17
/tmp/	/tmp/live-net-remaster-Fg9o5x/chroot/tmp	none	rw,bind	tmpfs	0:22
/tmp/	/tmp	none	rw,bind	tmpfs	0:22
+lnet-remaster:364:_chroot_mount: '[' -z 'mkdir -p ${BASE_CHROOT}/home/JPLive; mount -o bind /home/JPLive ${BASE_CHROOT}/home/JPLive' ']'
+lnet-remaster:365:_chroot_mount: eval mkdir -p '${BASE_CHROOT}/home/JPLive;' mount -o bind /home/JPLive '${BASE_CHROOT}/home/JPLive'
++lnet-remaster:365:_chroot_mount: mkdir -p /tmp/live-net-remaster-Fg9o5x/chroot/home/JPLive
++lnet-remaster:365:_chroot_mount: mount -o bind /home/JPLive /tmp/live-net-remaster-Fg9o5x/chroot/home/JPLive
+lnet-remaster:366:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
drwxr-xr-x 3 root root 60 set 12 11:07 home
+lnet-remaster:368:_chroot_mount: export DISPLAY=:0.0
+lnet-remaster:368:_chroot_mount: DISPLAY=:0.0
+lnet-remaster:369:_chroot_mount: export HOME=/root
+lnet-remaster:369:_chroot_mount: HOME=/root
+lnet-remaster:370:_chroot_mount: export LC_ALL=C
+lnet-remaster:370:_chroot_mount: LC_ALL=C
+lnet-remaster:372:_chroot_mount: '[' '!' -L /tmp/live-net-remaster-Fg9o5x/chroot/etc/mtab ']'
+lnet-remaster:374:_chroot_mount: rm -f /tmp/live-net-remaster-Fg9o5x/chroot/etc/mtab
+lnet-remaster:375:_chroot_mount: ln -fs /proc/mounts /tmp/live-net-remaster-Fg9o5x/chroot/etc/mtab
+lnet-remaster:375:_chroot_mount: :
+lnet-remaster:377:_chroot_mount: cp /etc/hosts /tmp/live-net-remaster-Fg9o5x/chroot/etc/
+lnet-remaster:378:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
drwxr-xr-x 3 root root 60 Sep 12 11:07 home
+lnet-remaster:380:_chroot_mount: chroot /tmp/live-net-remaster-Fg9o5x/chroot/ mount -t proc none /proc
+lnet-remaster:381:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
drwxr-xr-x 3 root root 60 Sep 12 11:07 home
+lnet-remaster:382:_chroot_mount: :
+lnet-remaster:736:_prepare_web_database: _chroot_mount_compress
+lnet-remaster:395:_chroot_mount_compress: mkdir -p /tmp/live-net-remaster-Fg9o5x/chroot/var/tmp/mnt/
+lnet-remaster:396:_chroot_mount_compress: mount -o bind /home/JPLive/LneT-Lite-686 /tmp/live-net-remaster-Fg9o5x/chroot/var/tmp/mnt/
+lnet-remaster:397:_chroot_mount_compress: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
drwxr-xr-x 3 root root 60 Sep 12 11:07 home
drwxr-xr-x 3 root root 60 Sep 12 11:07 var
+lnet-remaster:398:_chroot_mount_compress: :
+lnet-remaster:737:_prepare_web_database: chroot /tmp/live-net-remaster-Fg9o5x/chroot/ sh
+lnet-remaster:857:_prepare_web_database: echo 'Error: when preparing web database.'
+lnet-remaster:858:_prepare_web_database: return 1
+lnet-remaster:1505: exit 1

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: ovl: mounting two times the same mount overlayfs will not list any directory entry anymore
  2017-09-12  9:38 ovl: mounting two times the same mount overlayfs will not list any directory entry anymore Jordi Pujol Palomer
@ 2017-09-12 10:47 ` Amir Goldstein
  2017-09-12 13:04   ` Jordi Pujol
  0 siblings, 1 reply; 5+ messages in thread
From: Amir Goldstein @ 2017-09-12 10:47 UTC (permalink / raw)
  To: Jordi Pujol Palomer; +Cc: overlayfs, Andrei Vagin, Eric W. Biederman, Ram Pai

[-- Attachment #1: Type: text/plain, Size: 1120 bytes --]

On Tue, Sep 12, 2017 at 12:38 PM, Jordi Pujol Palomer
<jordipujolp@gmail.com> wrote:
> Hello,
>
> Maybe this is another overlayfs error, only for v4.13; it works well in
> previous version 4.12.
>
> When mounting two times the same mount, overlayfs will not list any
> directory entry anymore.
>

This does not smell like overlayfs issue to me, but more like
bind mount issue, so adding some mount ns folks in CC.

> Attached is the script log,
>
> Look for the line:
> +lnet-remaster:361:_chroot_mount: mount -o
> bind /tmp/ /tmp/live-net-remaster-Fg9o5x/chroot/tmp/
>
> Comments:
>
> /tmp/ is already mounted in /tmp/live-net-remaster-Fg9o5x/chroot/tmp/
>
> after mounting /tmp another time in the same location all overlay
> entries in the chroot directory disappear,
> no errors are listed in the log file, dmesg or journalctl.

So is this reproducible at every run with v4.13?
Are you able to try this without overlayfs? i.e. chroot to squashfs mount?
I am guessing there is nothing important in upper layer when this error occurs,
Am I right? does script need write to chroot path before this error occurs?

Amir.

[-- Attachment #2: lnet-remaster-_chroot_mount.txt --]
[-- Type: text/plain, Size: 15411 bytes --]

+lnet-remaster:353:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 24
drwxr-xr-x  2 root root 2398 ago 26 09:40 bin
drwxr-xr-x  2 root root  148 set 12 10:44 boot
drwxr-xr-x  2 root root    3 set 12 10:40 dev
drwxr-xr-x  1 root root 4096 set 12 11:06 etc
drwxr-xr-x  1 root root 4096 set 12 11:06 home
lrwxrwxrwx  1 root root   33 jun 11  2016 initrd.img -> /boot/initrd.img-4.6.2-1-lnet-686
drwxr-xr-x 15 root root  399 ago  8 08:08 lib
drwxr-xr-x  2 root root    3 set 24  2009 media
drwxr-xr-x  2 root root    3 nov 26  2014 mnt
drwxr-xr-x  2 root root    3 set  4  2009 opt
dr-xr-xr-x  2 root root    3 set 12 10:40 proc
drwxr-xr-x  1 root root 4096 set 12 11:06 root
drwxr-xr-x  1 root root 4096 set 12 11:06 run
drwxr-xr-x  2 root root 3304 ago 26 09:46 sbin
drwxr-xr-x  2 root root    3 set  4  2009 srv
dr-xr-xr-x 13 root root    0 set 12 11:06 sys
drwxrwxrwt 11 root root  260 set 12 11:07 tmp
drwxr-xr-x  1 root root 4096 des 19  2011 usr
drwxr-xr-x  1 root root 4096 jun 30  2011 var
lrwxrwxrwx  1 root root   29 jun 11  2016 vmlinuz -> boot/vmlinuz-4.6.2-1-lnet-686
+lnet-remaster:354:_chroot_mount: mount -o bind /dev/ /tmp/live-net-remaster-Fg9o5x/chroot/dev
+lnet-remaster:355:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 24
drwxr-xr-x  2 root root 2398 ago 26 09:40 bin
drwxr-xr-x  2 root root  148 set 12 10:44 boot
drwxr-xr-x 19 root root 3420 set 12 11:06 dev
drwxr-xr-x  1 root root 4096 set 12 11:06 etc
drwxr-xr-x  1 root root 4096 set 12 11:06 home
lrwxrwxrwx  1 root root   33 jun 11  2016 initrd.img -> /boot/initrd.img-4.6.2-1-lnet-686
drwxr-xr-x 15 root root  399 ago  8 08:08 lib
drwxr-xr-x  2 root root    3 set 24  2009 media
drwxr-xr-x  2 root root    3 nov 26  2014 mnt
drwxr-xr-x  2 root root    3 set  4  2009 opt
dr-xr-xr-x  2 root root    3 set 12 10:40 proc
drwxr-xr-x  1 root root 4096 set 12 11:06 root
drwxr-xr-x  1 root root 4096 set 12 11:06 run
drwxr-xr-x  2 root root 3304 ago 26 09:46 sbin
drwxr-xr-x  2 root root    3 set  4  2009 srv
dr-xr-xr-x 13 root root    0 set 12 11:06 sys
drwxrwxrwt 11 root root  260 set 12 11:07 tmp
drwxr-xr-x  1 root root 4096 des 19  2011 usr
drwxr-xr-x  1 root root 4096 jun 30  2011 var
lrwxrwxrwx  1 root root   29 jun 11  2016 vmlinuz -> boot/vmlinuz-4.6.2-1-lnet-686
+lnet-remaster:356:_chroot_mount: mount -o bind /dev/pts /tmp/live-net-remaster-Fg9o5x/chroot/dev/pts
+lnet-remaster:357:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 24
drwxr-xr-x  2 root root 2398 ago 26 09:40 bin
drwxr-xr-x  2 root root  148 set 12 10:44 boot
drwxr-xr-x 19 root root 3420 set 12 11:06 dev
drwxr-xr-x  1 root root 4096 set 12 11:06 etc
drwxr-xr-x  1 root root 4096 set 12 11:06 home
lrwxrwxrwx  1 root root   33 jun 11  2016 initrd.img -> /boot/initrd.img-4.6.2-1-lnet-686
drwxr-xr-x 15 root root  399 ago  8 08:08 lib
drwxr-xr-x  2 root root    3 set 24  2009 media
drwxr-xr-x  2 root root    3 nov 26  2014 mnt
drwxr-xr-x  2 root root    3 set  4  2009 opt
dr-xr-xr-x  2 root root    3 set 12 10:40 proc
drwxr-xr-x  1 root root 4096 set 12 11:06 root
drwxr-xr-x  1 root root 4096 set 12 11:06 run
drwxr-xr-x  2 root root 3304 ago 26 09:46 sbin
drwxr-xr-x  2 root root    3 set  4  2009 srv
dr-xr-xr-x 13 root root    0 set 12 11:06 sys
drwxrwxrwt 11 root root  260 set 12 11:07 tmp
drwxr-xr-x  1 root root 4096 des 19  2011 usr
drwxr-xr-x  1 root root 4096 jun 30  2011 var
lrwxrwxrwx  1 root root   29 jun 11  2016 vmlinuz -> boot/vmlinuz-4.6.2-1-lnet-686
+lnet-remaster:358:_chroot_mount: mount -o bind /sys /tmp/live-net-remaster-Fg9o5x/chroot/sys
+lnet-remaster:359:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 24
drwxr-xr-x  2 root root 2398 ago 26 09:40 bin
drwxr-xr-x  2 root root  148 set 12 10:44 boot
drwxr-xr-x 19 root root 3420 set 12 11:06 dev
drwxr-xr-x  1 root root 4096 set 12 11:06 etc
drwxr-xr-x  1 root root 4096 set 12 11:06 home
lrwxrwxrwx  1 root root   33 jun 11  2016 initrd.img -> /boot/initrd.img-4.6.2-1-lnet-686
drwxr-xr-x 15 root root  399 ago  8 08:08 lib
drwxr-xr-x  2 root root    3 set 24  2009 media
drwxr-xr-x  2 root root    3 nov 26  2014 mnt
drwxr-xr-x  2 root root    3 set  4  2009 opt
dr-xr-xr-x  2 root root    3 set 12 10:40 proc
drwxr-xr-x  1 root root 4096 set 12 11:06 root
drwxr-xr-x  1 root root 4096 set 12 11:06 run
drwxr-xr-x  2 root root 3304 ago 26 09:46 sbin
drwxr-xr-x  2 root root    3 set  4  2009 srv
dr-xr-xr-x 13 root root    0 set 12 11:06 sys
drwxrwxrwt 11 root root  260 set 12 11:07 tmp
drwxr-xr-x  1 root root 4096 des 19  2011 usr
drwxr-xr-x  1 root root 4096 jun 30  2011 var
lrwxrwxrwx  1 root root   29 jun 11  2016 vmlinuz -> boot/vmlinuz-4.6.2-1-lnet-686
+lnet-remaster:360:_chroot_mount: mount-list
sysfs	/sys	sysfs	nodev,noexec,nosuid,relatime,rw	sysfs	0:17
proc	/proc	proc	nodev,noexec,nosuid,relatime,rw	proc	0:5
udev	/dev	devtmpfs	mode=755,nosuid,nr_inodes=978526,relatime,rw,size=3914104k	udev	0:6
devpts	/dev/pts	devpts	gid=5,mode=620,noexec,nosuid,ptmxmode=000,relatime,rw	devpts	0:18
tmpfs	/run	tmpfs	mode=755,noexec,nosuid,relatime,rw,size=786156k	tmpfs	0:19
tmpfs	/lnet	tmpfs	mode=755,relatime,rw,size=7861540k	tmpfs	0:20
/dev/sda1	/lnet/image	ext2	errors=continue,noacl,noatime,nouser_xattr,ro	/dev/sda1	8:1
/lnet/image/LneTXFCE64/00filesystem.squashfs	/lnet/00filesystem.squashfs	squashfs	noatime,ro,loop=/dev/loop0	/dev/loop0	7:0
/lnet/image/LneTXFCE64/10interfaces.squashfs	/lnet/10interfaces.squashfs	squashfs	noatime,ro,loop=/dev/loop1	/dev/loop1	7:1
/dev/sda2	/lnet/cowroot	ext4	data=ordered,relatime,rw	/dev/sda2	8:2
overlay	/	overlay	index=off,lowerdir=/lnet/00filesystem.squashfs:/lnet/10interfaces.squashfs,relatime,rw,upperdir=/lnet/cowroot/LneTXFCECOW/upper,workdir=/lnet/cowroot/LneTXFCECOW/work	overlay	0:21
tmpfs	/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861540k,mode=1777	tmpfs	0:22
tmpfs	/var/log	tmpfs	mode=755,nosuid,relatime,rw,size=7861540k	tmpfs	0:23
tmpfs	/var/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861540k,mode=1777	tmpfs	0:24
securityfs	/sys/kernel/security	securityfs	nodev,noexec,nosuid,relatime,rw	securityfs	0:7
tmpfs	/dev/shm	tmpfs	nodev,nosuid,rw,mode=1777	tmpfs	0:25
tmpfs	/run/lock	tmpfs	nodev,noexec,nosuid,relatime,rw,size=5120k,mode=1777	tmpfs	0:26
tmpfs	/sys/fs/cgroup	tmpfs	mode=755,nodev,noexec,nosuid,ro	tmpfs	0:27
cgroup	/sys/fs/cgroup/unified	cgroup2	nodev,noexec,nosuid,relatime,rw	cgroup	0:28
cgroup	/sys/fs/cgroup/systemd	cgroup	name=systemd,nodev,noexec,nosuid,relatime,rw,xattr	cgroup	0:29
pstore	/sys/fs/pstore	pstore	nodev,noexec,nosuid,relatime,rw	pstore	0:30
cgroup	/sys/fs/cgroup/cpu	cgroup	cpu,nodev,noexec,nosuid,relatime,rw	cgroup	0:31
systemd-1	/proc/sys/fs/binfmt_misc	autofs	direct,fd=32,maxproto=5,minproto=5,pgrp=1,relatime,rw,timeout=0	systemd-1	0:32
/lnet/cowroot/LneTXFCEhome	/home	none	rw,bind	/dev/sda2	8:2
/lnet/image/LneTXFCE64	/boot	none	ro,bind	/dev/sda1	8:1
debugfs	/sys/kernel/debug	debugfs	relatime,rw	debugfs	0:8
mqueue	/dev/mqueue	mqueue	relatime,rw	mqueue	0:16
hugetlbfs	/dev/hugepages	hugetlbfs	pagesize=2M,relatime,rw	hugetlbfs	0:33
/lnet/image/grub	/boot/grub	none	ro,bind	/dev/sda1	8:1
/lnet/image/grub	/lnet/image/LneTXFCE64/grub	none	ro,bind	/dev/sda1	8:1
/lnet/cowroot/JPLive	/home/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive	/lnet/cowroot/LneTXFCEhome/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-cache-amd64	/var/cache/apt	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-lib-amd64	/var/lib/apt	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/LneTXFCEhome/root	/root	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/var-spool	/var/spool	none	rw,bind	/dev/sda2	8:2
tmpfs	/run/user/1001	tmpfs	gid=100,mode=700,nodev,nosuid,relatime,rw,size=786152k,uid=1001	tmpfs	0:37
/home/JPLive/LneT-Lite-686/iso/LneT-Lite/00filesystem.squashfs	/tmp/live-net-remaster-Fg9o5x/image/00filesystem.squashfs	squashfs	relatime,ro,loop=/dev/loop2	/dev/loop2	7:2
overlay	/tmp/live-net-remaster-Fg9o5x/chroot	overlay	index=off,lowerdir=/tmp/live-net-remaster-Fg9o5x/image/00filesystem.squashfs,relatime,rw,upperdir=/home/tmp.uqIFpoBStR/upper,workdir=/home/tmp.uqIFpoBStR/work	overlay	0:39
/sys/	/tmp/live-net-remaster-Fg9o5x/chroot/sys	none	rw,bind	sysfs	0:17
/tmp/	/tmp/live-net-remaster-Fg9o5x/chroot/tmp	none	rw,bind	tmpfs	0:22
/dev/	/tmp/live-net-remaster-Fg9o5x/chroot/dev	none	rw,bind	udev	0:6
/dev/pts/	/tmp/live-net-remaster-Fg9o5x/chroot/dev/pts	none	rw,bind	devpts	0:18
/dev/pts/	/dev/pts	none	rw,bind	devpts	0:18
/sys/	/tmp/live-net-remaster-Fg9o5x/chroot/sys	none	rw,bind	sysfs	0:17
/sys/	/sys	none	rw,bind	sysfs	0:17
+lnet-remaster:361:_chroot_mount: mount -o bind /tmp/ /tmp/live-net-remaster-Fg9o5x/chroot/tmp/
+lnet-remaster:362:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
+lnet-remaster:363:_chroot_mount: mount-list
sysfs	/sys	sysfs	nodev,noexec,nosuid,relatime,rw	sysfs	0:17
proc	/proc	proc	nodev,noexec,nosuid,relatime,rw	proc	0:5
udev	/dev	devtmpfs	mode=755,nosuid,nr_inodes=978526,relatime,rw,size=3914104k	udev	0:6
devpts	/dev/pts	devpts	gid=5,mode=620,noexec,nosuid,ptmxmode=000,relatime,rw	devpts	0:18
tmpfs	/run	tmpfs	mode=755,noexec,nosuid,relatime,rw,size=786156k	tmpfs	0:19
tmpfs	/lnet	tmpfs	mode=755,relatime,rw,size=7861540k	tmpfs	0:20
/dev/sda1	/lnet/image	ext2	errors=continue,noacl,noatime,nouser_xattr,ro	/dev/sda1	8:1
/lnet/image/LneTXFCE64/00filesystem.squashfs	/lnet/00filesystem.squashfs	squashfs	noatime,ro,loop=/dev/loop0	/dev/loop0	7:0
/lnet/image/LneTXFCE64/10interfaces.squashfs	/lnet/10interfaces.squashfs	squashfs	noatime,ro,loop=/dev/loop1	/dev/loop1	7:1
/dev/sda2	/lnet/cowroot	ext4	data=ordered,relatime,rw	/dev/sda2	8:2
overlay	/	overlay	index=off,lowerdir=/lnet/00filesystem.squashfs:/lnet/10interfaces.squashfs,relatime,rw,upperdir=/lnet/cowroot/LneTXFCECOW/upper,workdir=/lnet/cowroot/LneTXFCECOW/work	overlay	0:21
tmpfs	/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861540k,mode=1777	tmpfs	0:22
tmpfs	/var/log	tmpfs	mode=755,nosuid,relatime,rw,size=7861540k	tmpfs	0:23
tmpfs	/var/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861540k,mode=1777	tmpfs	0:24
securityfs	/sys/kernel/security	securityfs	nodev,noexec,nosuid,relatime,rw	securityfs	0:7
tmpfs	/dev/shm	tmpfs	nodev,nosuid,rw,mode=1777	tmpfs	0:25
tmpfs	/run/lock	tmpfs	nodev,noexec,nosuid,relatime,rw,size=5120k,mode=1777	tmpfs	0:26
tmpfs	/sys/fs/cgroup	tmpfs	mode=755,nodev,noexec,nosuid,ro	tmpfs	0:27
cgroup	/sys/fs/cgroup/unified	cgroup2	nodev,noexec,nosuid,relatime,rw	cgroup	0:28
cgroup	/sys/fs/cgroup/systemd	cgroup	name=systemd,nodev,noexec,nosuid,relatime,rw,xattr	cgroup	0:29
pstore	/sys/fs/pstore	pstore	nodev,noexec,nosuid,relatime,rw	pstore	0:30
cgroup	/sys/fs/cgroup/cpu	cgroup	cpu,nodev,noexec,nosuid,relatime,rw	cgroup	0:31
systemd-1	/proc/sys/fs/binfmt_misc	autofs	direct,fd=32,maxproto=5,minproto=5,pgrp=1,relatime,rw,timeout=0	systemd-1	0:32
/lnet/cowroot/LneTXFCEhome	/home	none	rw,bind	/dev/sda2	8:2
/lnet/image/LneTXFCE64	/boot	none	ro,bind	/dev/sda1	8:1
debugfs	/sys/kernel/debug	debugfs	relatime,rw	debugfs	0:8
mqueue	/dev/mqueue	mqueue	relatime,rw	mqueue	0:16
hugetlbfs	/dev/hugepages	hugetlbfs	pagesize=2M,relatime,rw	hugetlbfs	0:33
/lnet/image/grub	/boot/grub	none	ro,bind	/dev/sda1	8:1
/lnet/image/grub	/lnet/image/LneTXFCE64/grub	none	ro,bind	/dev/sda1	8:1
/lnet/cowroot/JPLive	/home/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive	/lnet/cowroot/LneTXFCEhome/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-cache-amd64	/var/cache/apt	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-lib-amd64	/var/lib/apt	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/LneTXFCEhome/root	/root	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/var-spool	/var/spool	none	rw,bind	/dev/sda2	8:2
tmpfs	/run/user/1001	tmpfs	gid=100,mode=700,nodev,nosuid,relatime,rw,size=786152k,uid=1001	tmpfs	0:37
/home/JPLive/LneT-Lite-686/iso/LneT-Lite/00filesystem.squashfs	/tmp/live-net-remaster-Fg9o5x/image/00filesystem.squashfs	squashfs	relatime,ro,loop=/dev/loop2	/dev/loop2	7:2
overlay	/tmp/live-net-remaster-Fg9o5x/chroot	overlay	index=off,lowerdir=/tmp/live-net-remaster-Fg9o5x/image/00filesystem.squashfs,relatime,rw,upperdir=/home/tmp.uqIFpoBStR/upper,workdir=/home/tmp.uqIFpoBStR/work	overlay	0:39
/sys/	/tmp/live-net-remaster-Fg9o5x/chroot/sys	none	rw,bind	sysfs	0:17
/tmp/	/tmp/live-net-remaster-Fg9o5x/chroot/tmp	none	rw,bind	tmpfs	0:22
/dev/	/tmp/live-net-remaster-Fg9o5x/chroot/dev	none	rw,bind	udev	0:6
/dev/pts/	/tmp/live-net-remaster-Fg9o5x/chroot/dev/pts	none	rw,bind	devpts	0:18
/dev/pts/	/dev/pts	none	rw,bind	devpts	0:18
/sys/	/tmp/live-net-remaster-Fg9o5x/chroot/sys	none	rw,bind	sysfs	0:17
/sys/	/sys	none	rw,bind	sysfs	0:17
/tmp/	/tmp/live-net-remaster-Fg9o5x/chroot/tmp	none	rw,bind	tmpfs	0:22
/tmp/	/tmp	none	rw,bind	tmpfs	0:22
+lnet-remaster:364:_chroot_mount: '[' -z 'mkdir -p ${BASE_CHROOT}/home/JPLive; mount -o bind /home/JPLive ${BASE_CHROOT}/home/JPLive' ']'
+lnet-remaster:365:_chroot_mount: eval mkdir -p '${BASE_CHROOT}/home/JPLive;' mount -o bind /home/JPLive '${BASE_CHROOT}/home/JPLive'
++lnet-remaster:365:_chroot_mount: mkdir -p /tmp/live-net-remaster-Fg9o5x/chroot/home/JPLive
++lnet-remaster:365:_chroot_mount: mount -o bind /home/JPLive /tmp/live-net-remaster-Fg9o5x/chroot/home/JPLive
+lnet-remaster:366:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
drwxr-xr-x 3 root root 60 set 12 11:07 home
+lnet-remaster:368:_chroot_mount: export DISPLAY=:0.0
+lnet-remaster:368:_chroot_mount: DISPLAY=:0.0
+lnet-remaster:369:_chroot_mount: export HOME=/root
+lnet-remaster:369:_chroot_mount: HOME=/root
+lnet-remaster:370:_chroot_mount: export LC_ALL=C
+lnet-remaster:370:_chroot_mount: LC_ALL=C
+lnet-remaster:372:_chroot_mount: '[' '!' -L /tmp/live-net-remaster-Fg9o5x/chroot/etc/mtab ']'
+lnet-remaster:374:_chroot_mount: rm -f /tmp/live-net-remaster-Fg9o5x/chroot/etc/mtab
+lnet-remaster:375:_chroot_mount: ln -fs /proc/mounts /tmp/live-net-remaster-Fg9o5x/chroot/etc/mtab
+lnet-remaster:375:_chroot_mount: :
+lnet-remaster:377:_chroot_mount: cp /etc/hosts /tmp/live-net-remaster-Fg9o5x/chroot/etc/
+lnet-remaster:378:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
drwxr-xr-x 3 root root 60 Sep 12 11:07 home
+lnet-remaster:380:_chroot_mount: chroot /tmp/live-net-remaster-Fg9o5x/chroot/ mount -t proc none /proc
+lnet-remaster:381:_chroot_mount: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
drwxr-xr-x 3 root root 60 Sep 12 11:07 home
+lnet-remaster:382:_chroot_mount: :
+lnet-remaster:736:_prepare_web_database: _chroot_mount_compress
+lnet-remaster:395:_chroot_mount_compress: mkdir -p /tmp/live-net-remaster-Fg9o5x/chroot/var/tmp/mnt/
+lnet-remaster:396:_chroot_mount_compress: mount -o bind /home/JPLive/LneT-Lite-686 /tmp/live-net-remaster-Fg9o5x/chroot/var/tmp/mnt/
+lnet-remaster:397:_chroot_mount_compress: ls -lA /tmp/live-net-remaster-Fg9o5x/chroot
total 0
drwxr-xr-x 3 root root 60 Sep 12 11:07 home
drwxr-xr-x 3 root root 60 Sep 12 11:07 var
+lnet-remaster:398:_chroot_mount_compress: :
+lnet-remaster:737:_prepare_web_database: chroot /tmp/live-net-remaster-Fg9o5x/chroot/ sh
+lnet-remaster:857:_prepare_web_database: echo 'Error: when preparing web database.'
+lnet-remaster:858:_prepare_web_database: return 1
+lnet-remaster:1505: exit 1

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: ovl: mounting two times the same mount overlayfs will not list any directory entry anymore
  2017-09-12 10:47 ` Amir Goldstein
@ 2017-09-12 13:04   ` Jordi Pujol
  2017-09-14 10:12     ` Miklos Szeredi
  0 siblings, 1 reply; 5+ messages in thread
From: Jordi Pujol @ 2017-09-12 13:04 UTC (permalink / raw)
  To: Amir Goldstein; +Cc: overlayfs, Andrei Vagin, Eric W. Biederman, Ram Pai

[-- Attachment #1: Type: text/plain, Size: 665 bytes --]

On Tue, Sep 12, 2017 at 12:47 PM, Amir Goldstein <amir73il@gmail.com> wrote:

> So is this reproducible at every run with v4.13?
yes,

> Are you able to try this without overlayfs? i.e. chroot to squashfs mount?
I have found the same in 4.12 when mounting only one squashfs image.
Therefore we could say that when working with previous versions
overlayfs was solving the problem in some way.

> I am guessing there is nothing important in upper layer when this error occurs,
> Am I right? does script need write to chroot path before this error occurs?
Correct, there is no need to write or enter in the chroot, only repeat
the mount command.

Thanks,

Jordi Pujol

[-- Attachment #2: notes-4.12-mount-over-same-mount.txt --]
[-- Type: text/plain, Size: 4737 bytes --]

# uname -a
Linux pcjordi 4.12.11-1-haswell-lnet-amd64 #1 SMP PREEMPT Thu Sep 7 12:27:02 CEST 2017 x86_64 GNU/Linux
root@pcjordi:~# cd /tmp/
root@pcjordi:tmp# mkdir fs
root@pcjordi:tmp# mount -o loop,ro /lnet/image/LneTLXQT64/00filesystem.squashfs /tmp/fs/
root@pcjordi:tmp# mount -o bind /tmp /tmp/fs/tmp/
root@pcjordi:tmp# ls -lA /tmp/fs/
total 0
drwxr-xr-x  2 root root 1925 Sep  5 11:00 bin
drwxr-xr-x  2 root root  196 Sep 10 09:59 boot
drwxr-xr-x  2 root root    3 Sep 10 09:22 dev
drwxr-xr-x 97 root root 2867 Sep 10 09:58 etc
drwxr-xr-x  2 root root    3 Sep 10 09:24 home
lrwxrwxrwx  1 root root   45 Sep  7 13:57 initrd.img -> /boot/initrd.img-4.12.11-1-haswell-lnet-amd64
drwxr-xr-x 12 root root  290 Jul  5 11:54 lib
drwxr-xr-x  2 root root   43 Aug 31 09:55 lib64
drwxr-xr-x  2 root root    3 Feb  6  2017 media
drwxr-xr-x  2 root root    3 Feb  6  2017 mnt
drwxr-xr-x  2 root root    3 Feb  6  2017 opt
dr-xr-xr-x  2 root root    3 Sep 10 09:22 proc
drwx------  2 root root    3 Sep 10 09:24 root
drwxr-xr-x  2 root root    3 Sep 10 09:24 run
drwxr-xr-x  2 root root 2085 Sep  5 11:00 sbin
drwxr-xr-x  2 root root    3 Feb  6  2017 srv
dr-xr-xr-x  2 root root    3 Sep 10 09:22 sys
drwxrwxrwt 11 root root  260 Sep 12 14:42 tmp
drwxr-xr-x 10 root root  162 Feb  6  2017 usr
drwxr-xr-x 11 root root  184 Feb  6  2017 var
lrwxrwxrwx  1 root root   41 Sep  7 13:57 vmlinuz -> boot/vmlinuz-4.12.11-1-haswell-lnet-amd64
root@pcjordi:tmp# mount -o bind /tmp /tmp/fs/tmp/
root@pcjordi:tmp# ls -lA /tmp/fs/
total 0
root@pcjordi:tmp# mount-list 
sysfs	/sys	sysfs	nodev,noexec,nosuid,relatime,rw	sysfs	0:17
proc	/proc	proc	nodev,noexec,nosuid,relatime,rw	proc	0:5
udev	/dev	devtmpfs	mode=755,nosuid,nr_inodes=978778,relatime,rw,size=3915112k	udev	0:6
devpts	/dev/pts	devpts	gid=5,mode=620,noexec,nosuid,ptmxmode=000,relatime,rw	devpts	0:18
tmpfs	/run	tmpfs	mode=755,noexec,nosuid,relatime,rw,size=786164k	tmpfs	0:19
tmpfs	/lnet	tmpfs	mode=755,relatime,rw,size=7861632k	tmpfs	0:20
/dev/sda1	/lnet/image	ext2	errors=continue,noacl,noatime,nouser_xattr,ro	/dev/sda1	8:1
/lnet/image/LneTXFCE64/00filesystem.squashfs	/lnet/00filesystem.squashfs	squashfs	noatime,ro,loop=/dev/loop0	/dev/loop0	7:0
/lnet/image/LneTXFCE64/10interfaces.squashfs	/lnet/10interfaces.squashfs	squashfs	noatime,ro,loop=/dev/loop1	/dev/loop1	7:1
/dev/sda2	/lnet/cowroot	ext4	data=ordered,relatime,rw	/dev/sda2	8:2
overlay	/	overlay	lowerdir=/lnet/00filesystem.squashfs:/lnet/10interfaces.squashfs,relatime,rw,upperdir=/lnet/cowroot/LneTXFCECOW/upper,workdir=/lnet/cowroot/LneTXFCECOW/work	overlay	0:21
tmpfs	/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861632k,mode=1777	tmpfs	0:22
tmpfs	/var/log	tmpfs	mode=755,nosuid,relatime,rw,size=7861632k	tmpfs	0:23
tmpfs	/var/tmp	tmpfs	nodev,nosuid,relatime,rw,size=7861632k,mode=1777	tmpfs	0:24
securityfs	/sys/kernel/security	securityfs	nodev,noexec,nosuid,relatime,rw	securityfs	0:7
tmpfs	/dev/shm	tmpfs	nodev,nosuid,rw,mode=1777	tmpfs	0:25
tmpfs	/run/lock	tmpfs	nodev,noexec,nosuid,relatime,rw,size=5120k,mode=1777	tmpfs	0:26
tmpfs	/sys/fs/cgroup	tmpfs	mode=755,nodev,noexec,nosuid,ro	tmpfs	0:27
cgroup	/sys/fs/cgroup/unified	cgroup2	nodev,noexec,nosuid,relatime,rw	cgroup	0:28
cgroup	/sys/fs/cgroup/systemd	cgroup	name=systemd,nodev,noexec,nosuid,relatime,rw,xattr	cgroup	0:29
pstore	/sys/fs/pstore	pstore	nodev,noexec,nosuid,relatime,rw	pstore	0:30
cgroup	/sys/fs/cgroup/cpu	cgroup	cpu,nodev,noexec,nosuid,relatime,rw	cgroup	0:31
systemd-1	/proc/sys/fs/binfmt_misc	autofs	direct,fd=33,maxproto=5,minproto=5,pgrp=1,relatime,rw,timeout=0	systemd-1	0:32
/lnet/cowroot/LneTXFCEhome	/home	none	rw,bind	/dev/sda2	8:2
/lnet/image/LneTXFCE64	/boot	none	ro,bind	/dev/sda1	8:1
mqueue	/dev/mqueue	mqueue	relatime,rw	mqueue	0:16
debugfs	/sys/kernel/debug	debugfs	relatime,rw	debugfs	0:8
hugetlbfs	/dev/hugepages	hugetlbfs	relatime,rw	hugetlbfs	0:33
/lnet/image/grub	/boot/grub	none	ro,bind	/dev/sda1	8:1
/lnet/image/grub	/lnet/image/LneTXFCE64/grub	none	ro,bind	/dev/sda1	8:1
/lnet/cowroot/JPLive	/home/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive	/lnet/cowroot/LneTXFCEhome/JPLive	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/LneTXFCEhome/root	/root	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/var-spool	/var/spool	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-cache-amd64	/var/cache/apt	none	rw,bind	/dev/sda2	8:2
/lnet/cowroot/JPLive/apt-lib-amd64	/var/lib/apt	none	rw,bind	/dev/sda2	8:2
tmpfs	/run/user/1001	tmpfs	gid=100,mode=700,nodev,nosuid,relatime,rw,size=786160k,uid=1001	tmpfs	0:37
/lnet/image/LneTLXQT64/00filesystem.squashfs	/tmp/fs	squashfs	relatime,ro,loop=/dev/loop2	/dev/loop2	7:2
/tmp/	/tmp/fs/tmp	none	rw,bind	tmpfs	0:22
/tmp/	/tmp/fs/tmp	none	rw,bind	tmpfs	0:22
/tmp/	/tmp	none	rw,bind	tmpfs	0:22

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: ovl: mounting two times the same mount overlayfs will not list any directory entry anymore
  2017-09-12 13:04   ` Jordi Pujol
@ 2017-09-14 10:12     ` Miklos Szeredi
  2017-09-14 14:54       ` Jordi Pujol
  0 siblings, 1 reply; 5+ messages in thread
From: Miklos Szeredi @ 2017-09-14 10:12 UTC (permalink / raw)
  To: Jordi Pujol
  Cc: Amir Goldstein, overlayfs, Andrei Vagin, Eric W. Biederman,
	Ram Pai

On Tue, Sep 12, 2017 at 3:04 PM, Jordi Pujol <jordipujolp@gmail.com> wrote:
> On Tue, Sep 12, 2017 at 12:47 PM, Amir Goldstein <amir73il@gmail.com> wrote:
>
>> So is this reproducible at every run with v4.13?
> yes,
>
>> Are you able to try this without overlayfs? i.e. chroot to squashfs mount?
> I have found the same in 4.12 when mounting only one squashfs image.
> Therefore we could say that when working with previous versions
> overlayfs was solving the problem in some way.

Can you please post the contents of /proc/self/mountinfo?

Thanks,
Miklos

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: ovl: mounting two times the same mount overlayfs will not list any directory entry anymore
  2017-09-14 10:12     ` Miklos Szeredi
@ 2017-09-14 14:54       ` Jordi Pujol
  0 siblings, 0 replies; 5+ messages in thread
From: Jordi Pujol @ 2017-09-14 14:54 UTC (permalink / raw)
  To: Miklos Szeredi
  Cc: Amir Goldstein, overlayfs, Andrei Vagin, Eric W. Biederman,
	Ram Pai

[-- Attachment #1: Type: text/plain, Size: 718 bytes --]

Here is kernel v4.13 and one squashfs file

Thanks,

Jordi Pujol

On Thu, Sep 14, 2017 at 12:12 PM, Miklos Szeredi <miklos@szeredi.hu> wrote:
> On Tue, Sep 12, 2017 at 3:04 PM, Jordi Pujol <jordipujolp@gmail.com> wrote:
>> On Tue, Sep 12, 2017 at 12:47 PM, Amir Goldstein <amir73il@gmail.com> wrote:
>>
>>> So is this reproducible at every run with v4.13?
>> yes,
>>
>>> Are you able to try this without overlayfs? i.e. chroot to squashfs mount?
>> I have found the same in 4.12 when mounting only one squashfs image.
>> Therefore we could say that when working with previous versions
>> overlayfs was solving the problem in some way.
>
> Can you please post the contents of /proc/self/mountinfo?
>
> Thanks,
> Miklos

[-- Attachment #2: notes.txt --]
[-- Type: text/plain, Size: 505 bytes --]

root@pcjordi:notes# cat /proc/self/mountinfo > mountinfo-4.13.2-previous,txt
root@pcjordi:notes# mkdir /tmp/fs
root@pcjordi:notes# mount -o loop,ro /lnet/image/LneTLXQT64/00filesystem.squashfs /tmp/fs/     
root@pcjordi:notes# mount -o bind /tmp /tmp/fs/tmp/
root@pcjordi:notes# cat /proc/self/mountinfo > mountinfo-4.13.2-mount1,txt
root@pcjordi:notes# mount -o bind /tmp /tmp/fs/tmp/
root@pcjordi:notes# ls -lA /tmp/fs/
total 0
root@pcjordi:notes# cat /proc/self/mountinfo > mountinfo-4.13.2-mount2,txt

[-- Attachment #3: mountinfo-4.13.2-mount1,txt --]
[-- Type: application/octet-stream, Size: 3937 bytes --]

17 27 0:17 / /sys rw,nosuid,nodev,noexec,relatime shared:15 - sysfs sysfs rw
18 27 0:5 / /proc rw,nosuid,nodev,noexec,relatime shared:21 - proc proc rw
19 27 0:6 / /dev rw,nosuid,relatime shared:10 - devtmpfs udev rw,size=3913928k,nr_inodes=978482,mode=755
20 19 0:18 / /dev/pts rw,nosuid,noexec,relatime shared:11 - devpts devpts rw,gid=5,mode=620,ptmxmode=000
21 27 0:19 / /run rw,nosuid,noexec,relatime shared:13 - tmpfs tmpfs rw,size=786156k,mode=755
22 27 0:20 / /lnet rw,relatime shared:5 - tmpfs tmpfs rw,size=7861540k,mode=755
23 22 8:1 / /lnet/image ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
24 22 7:0 / /lnet/00filesystem.squashfs ro,noatime shared:7 - squashfs /dev/loop0 ro
25 22 7:1 / /lnet/10interfaces.squashfs ro,noatime shared:8 - squashfs /dev/loop1 ro
26 22 8:2 / /lnet/cowroot rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
27 1 0:21 / / rw,relatime shared:1 - overlay overlay rw,lowerdir=/lnet/00filesystem.squashfs:/lnet/10interfaces.squashfs,upperdir=/lnet/cowroot/LneTXFCECOW/upper,workdir=/lnet/cowroot/LneTXFCECOW/work,index=off
31 27 0:22 / /tmp rw,nosuid,nodev,relatime shared:2 - tmpfs tmpfs rw,size=7861540k
32 27 0:23 / /var/log rw,nosuid,relatime shared:3 - tmpfs tmpfs rw,size=7861540k,mode=755
33 27 0:24 / /var/tmp rw,nosuid,nodev,relatime shared:4 - tmpfs tmpfs rw,size=7861540k
34 17 0:7 / /sys/kernel/security rw,nosuid,nodev,noexec,relatime shared:16 - securityfs securityfs rw
35 19 0:25 / /dev/shm rw,nosuid,nodev shared:12 - tmpfs tmpfs rw
36 21 0:26 / /run/lock rw,nosuid,nodev,noexec,relatime shared:14 - tmpfs tmpfs rw,size=5120k
37 17 0:27 / /sys/fs/cgroup ro,nosuid,nodev,noexec shared:17 - tmpfs tmpfs ro,mode=755
38 37 0:28 / /sys/fs/cgroup/unified rw,nosuid,nodev,noexec,relatime shared:18 - cgroup2 cgroup rw
39 37 0:29 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:19 - cgroup cgroup rw,xattr,name=systemd
40 17 0:30 / /sys/fs/pstore rw,nosuid,nodev,noexec,relatime shared:20 - pstore pstore rw
41 37 0:31 / /sys/fs/cgroup/cpu rw,nosuid,nodev,noexec,relatime shared:22 - cgroup cgroup rw,cpu
42 18 0:32 / /proc/sys/fs/binfmt_misc rw,relatime shared:23 - autofs systemd-1 rw,fd=31,pgrp=1,timeout=0,minproto=5,maxproto=5,direct
43 27 8:1 /LneTXFCE64 /boot ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
44 19 0:16 / /dev/mqueue rw,relatime shared:24 - mqueue mqueue rw
45 19 0:33 / /dev/hugepages rw,relatime shared:25 - hugetlbfs hugetlbfs rw,pagesize=2M
46 27 8:2 /LneTXFCEhome /home rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
47 17 0:8 / /sys/kernel/debug rw,relatime shared:26 - debugfs debugfs rw
48 43 8:1 /grub /boot/grub ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
49 23 8:1 /grub /lnet/image/LneTXFCE64/grub ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
50 46 8:2 /JPLive /home/JPLive rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
51 26 8:2 /JPLive /lnet/cowroot/LneTXFCEhome/JPLive rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
52 27 8:2 /JPLive/apt-lib-amd64 /var/lib/apt rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
53 27 8:2 /LneTXFCEhome/root /root rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
54 27 8:2 /JPLive/apt-cache-amd64 /var/cache/apt rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
55 27 8:2 /JPLive/var-spool /var/spool rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
232 21 0:37 / /run/user/1001 rw,nosuid,nodev,relatime shared:162 - tmpfs tmpfs rw,size=786152k,mode=700,uid=1001,gid=100
237 27 0:38 / /media/sshfs rw,nosuid,nodev,relatime shared:166 - fuse.sshfs livenet://home rw,user_id=0,group_id=0,allow_other
243 17 0:39 / /sys/fs/fuse/connections rw,relatime shared:170 - fusectl fusectl rw
248 31 7:2 / /tmp/fs ro,relatime shared:174 - squashfs /dev/loop2 ro
253 248 0:22 / /tmp/fs/tmp rw,nosuid,nodev,relatime shared:2 - tmpfs tmpfs rw,size=7861540k

[-- Attachment #4: mountinfo-4.13.2-mount2,txt --]
[-- Type: application/octet-stream, Size: 4113 bytes --]

17 27 0:17 / /sys rw,nosuid,nodev,noexec,relatime shared:15 - sysfs sysfs rw
18 27 0:5 / /proc rw,nosuid,nodev,noexec,relatime shared:21 - proc proc rw
19 27 0:6 / /dev rw,nosuid,relatime shared:10 - devtmpfs udev rw,size=3913928k,nr_inodes=978482,mode=755
20 19 0:18 / /dev/pts rw,nosuid,noexec,relatime shared:11 - devpts devpts rw,gid=5,mode=620,ptmxmode=000
21 27 0:19 / /run rw,nosuid,noexec,relatime shared:13 - tmpfs tmpfs rw,size=786156k,mode=755
22 27 0:20 / /lnet rw,relatime shared:5 - tmpfs tmpfs rw,size=7861540k,mode=755
23 22 8:1 / /lnet/image ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
24 22 7:0 / /lnet/00filesystem.squashfs ro,noatime shared:7 - squashfs /dev/loop0 ro
25 22 7:1 / /lnet/10interfaces.squashfs ro,noatime shared:8 - squashfs /dev/loop1 ro
26 22 8:2 / /lnet/cowroot rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
27 1 0:21 / / rw,relatime shared:1 - overlay overlay rw,lowerdir=/lnet/00filesystem.squashfs:/lnet/10interfaces.squashfs,upperdir=/lnet/cowroot/LneTXFCECOW/upper,workdir=/lnet/cowroot/LneTXFCECOW/work,index=off
31 27 0:22 / /tmp rw,nosuid,nodev,relatime shared:2 - tmpfs tmpfs rw,size=7861540k
32 27 0:23 / /var/log rw,nosuid,relatime shared:3 - tmpfs tmpfs rw,size=7861540k,mode=755
33 27 0:24 / /var/tmp rw,nosuid,nodev,relatime shared:4 - tmpfs tmpfs rw,size=7861540k
34 17 0:7 / /sys/kernel/security rw,nosuid,nodev,noexec,relatime shared:16 - securityfs securityfs rw
35 19 0:25 / /dev/shm rw,nosuid,nodev shared:12 - tmpfs tmpfs rw
36 21 0:26 / /run/lock rw,nosuid,nodev,noexec,relatime shared:14 - tmpfs tmpfs rw,size=5120k
37 17 0:27 / /sys/fs/cgroup ro,nosuid,nodev,noexec shared:17 - tmpfs tmpfs ro,mode=755
38 37 0:28 / /sys/fs/cgroup/unified rw,nosuid,nodev,noexec,relatime shared:18 - cgroup2 cgroup rw
39 37 0:29 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:19 - cgroup cgroup rw,xattr,name=systemd
40 17 0:30 / /sys/fs/pstore rw,nosuid,nodev,noexec,relatime shared:20 - pstore pstore rw
41 37 0:31 / /sys/fs/cgroup/cpu rw,nosuid,nodev,noexec,relatime shared:22 - cgroup cgroup rw,cpu
42 18 0:32 / /proc/sys/fs/binfmt_misc rw,relatime shared:23 - autofs systemd-1 rw,fd=31,pgrp=1,timeout=0,minproto=5,maxproto=5,direct
43 27 8:1 /LneTXFCE64 /boot ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
44 19 0:16 / /dev/mqueue rw,relatime shared:24 - mqueue mqueue rw
45 19 0:33 / /dev/hugepages rw,relatime shared:25 - hugetlbfs hugetlbfs rw,pagesize=2M
46 27 8:2 /LneTXFCEhome /home rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
47 17 0:8 / /sys/kernel/debug rw,relatime shared:26 - debugfs debugfs rw
48 43 8:1 /grub /boot/grub ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
49 23 8:1 /grub /lnet/image/LneTXFCE64/grub ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
50 46 8:2 /JPLive /home/JPLive rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
51 26 8:2 /JPLive /lnet/cowroot/LneTXFCEhome/JPLive rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
52 27 8:2 /JPLive/apt-lib-amd64 /var/lib/apt rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
53 27 8:2 /LneTXFCEhome/root /root rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
54 27 8:2 /JPLive/apt-cache-amd64 /var/cache/apt rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
55 27 8:2 /JPLive/var-spool /var/spool rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
232 21 0:37 / /run/user/1001 rw,nosuid,nodev,relatime shared:162 - tmpfs tmpfs rw,size=786152k,mode=700,uid=1001,gid=100
237 27 0:38 / /media/sshfs rw,nosuid,nodev,relatime shared:166 - fuse.sshfs livenet://home rw,user_id=0,group_id=0,allow_other
243 17 0:39 / /sys/fs/fuse/connections rw,relatime shared:170 - fusectl fusectl rw
248 31 7:2 / /tmp/fs ro,relatime shared:174 - squashfs /dev/loop2 ro
253 248 0:22 / /tmp/fs/tmp rw,nosuid,nodev,relatime shared:2 - tmpfs tmpfs rw,size=7861540k
258 253 0:22 / /tmp/fs/tmp rw,nosuid,nodev,relatime shared:2 - tmpfs tmpfs rw,size=7861540k
259 31 0:22 / /tmp rw,nosuid,nodev,relatime shared:2 - tmpfs tmpfs rw,size=7861540k

[-- Attachment #5: mountinfo-4.13.2-previous,txt --]
[-- Type: application/octet-stream, Size: 3776 bytes --]

17 27 0:17 / /sys rw,nosuid,nodev,noexec,relatime shared:15 - sysfs sysfs rw
18 27 0:5 / /proc rw,nosuid,nodev,noexec,relatime shared:21 - proc proc rw
19 27 0:6 / /dev rw,nosuid,relatime shared:10 - devtmpfs udev rw,size=3913928k,nr_inodes=978482,mode=755
20 19 0:18 / /dev/pts rw,nosuid,noexec,relatime shared:11 - devpts devpts rw,gid=5,mode=620,ptmxmode=000
21 27 0:19 / /run rw,nosuid,noexec,relatime shared:13 - tmpfs tmpfs rw,size=786156k,mode=755
22 27 0:20 / /lnet rw,relatime shared:5 - tmpfs tmpfs rw,size=7861540k,mode=755
23 22 8:1 / /lnet/image ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
24 22 7:0 / /lnet/00filesystem.squashfs ro,noatime shared:7 - squashfs /dev/loop0 ro
25 22 7:1 / /lnet/10interfaces.squashfs ro,noatime shared:8 - squashfs /dev/loop1 ro
26 22 8:2 / /lnet/cowroot rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
27 1 0:21 / / rw,relatime shared:1 - overlay overlay rw,lowerdir=/lnet/00filesystem.squashfs:/lnet/10interfaces.squashfs,upperdir=/lnet/cowroot/LneTXFCECOW/upper,workdir=/lnet/cowroot/LneTXFCECOW/work,index=off
31 27 0:22 / /tmp rw,nosuid,nodev,relatime shared:2 - tmpfs tmpfs rw,size=7861540k
32 27 0:23 / /var/log rw,nosuid,relatime shared:3 - tmpfs tmpfs rw,size=7861540k,mode=755
33 27 0:24 / /var/tmp rw,nosuid,nodev,relatime shared:4 - tmpfs tmpfs rw,size=7861540k
34 17 0:7 / /sys/kernel/security rw,nosuid,nodev,noexec,relatime shared:16 - securityfs securityfs rw
35 19 0:25 / /dev/shm rw,nosuid,nodev shared:12 - tmpfs tmpfs rw
36 21 0:26 / /run/lock rw,nosuid,nodev,noexec,relatime shared:14 - tmpfs tmpfs rw,size=5120k
37 17 0:27 / /sys/fs/cgroup ro,nosuid,nodev,noexec shared:17 - tmpfs tmpfs ro,mode=755
38 37 0:28 / /sys/fs/cgroup/unified rw,nosuid,nodev,noexec,relatime shared:18 - cgroup2 cgroup rw
39 37 0:29 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:19 - cgroup cgroup rw,xattr,name=systemd
40 17 0:30 / /sys/fs/pstore rw,nosuid,nodev,noexec,relatime shared:20 - pstore pstore rw
41 37 0:31 / /sys/fs/cgroup/cpu rw,nosuid,nodev,noexec,relatime shared:22 - cgroup cgroup rw,cpu
42 18 0:32 / /proc/sys/fs/binfmt_misc rw,relatime shared:23 - autofs systemd-1 rw,fd=31,pgrp=1,timeout=0,minproto=5,maxproto=5,direct
43 27 8:1 /LneTXFCE64 /boot ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
44 19 0:16 / /dev/mqueue rw,relatime shared:24 - mqueue mqueue rw
45 19 0:33 / /dev/hugepages rw,relatime shared:25 - hugetlbfs hugetlbfs rw,pagesize=2M
46 27 8:2 /LneTXFCEhome /home rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
47 17 0:8 / /sys/kernel/debug rw,relatime shared:26 - debugfs debugfs rw
48 43 8:1 /grub /boot/grub ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
49 23 8:1 /grub /lnet/image/LneTXFCE64/grub ro,noatime shared:6 - ext2 /dev/sda1 ro,errors=continue,nouser_xattr,noacl
50 46 8:2 /JPLive /home/JPLive rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
51 26 8:2 /JPLive /lnet/cowroot/LneTXFCEhome/JPLive rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
52 27 8:2 /JPLive/apt-lib-amd64 /var/lib/apt rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
53 27 8:2 /LneTXFCEhome/root /root rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
54 27 8:2 /JPLive/apt-cache-amd64 /var/cache/apt rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
55 27 8:2 /JPLive/var-spool /var/spool rw,relatime shared:9 - ext4 /dev/sda2 rw,data=ordered
232 21 0:37 / /run/user/1001 rw,nosuid,nodev,relatime shared:162 - tmpfs tmpfs rw,size=786152k,mode=700,uid=1001,gid=100
237 27 0:38 / /media/sshfs rw,nosuid,nodev,relatime shared:166 - fuse.sshfs livenet://home rw,user_id=0,group_id=0,allow_other
243 17 0:39 / /sys/fs/fuse/connections rw,relatime shared:170 - fusectl fusectl rw

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2017-09-14 14:54 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-09-12  9:38 ovl: mounting two times the same mount overlayfs will not list any directory entry anymore Jordi Pujol Palomer
2017-09-12 10:47 ` Amir Goldstein
2017-09-12 13:04   ` Jordi Pujol
2017-09-14 10:12     ` Miklos Szeredi
2017-09-14 14:54       ` Jordi Pujol

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