On Tue, Sep 12, 2017 at 12:38 PM, Jordi Pujol Palomer
<jordipujolp@xxxxxxxxx> 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.
+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
