Thank you for looking into this.
My branches -
root@U1204-32-BS:~# cat /sys/fs/aufs/si_3532123f/br*
/proj/[1]5.113.79.8/.scratch=rw
/proj/[2]5.113.79.8/.isoMounts/1790_SGF_Game_TreasuresOfOlympus_V2LinuxDev.i
so=ro
/proj/[3]5.113.79.8/.isoMounts/OS.NVIDIA-GF8.FIELD.2.0.168.0.iso=ro
/proj/[4]5.113.79.8/.isoMounts/OS.SYSTEM.FIELD.2.0.168.0.iso=ro
/proj/[5]5.113.79.8/.isoMounts/117_binLinuxDev.iso=ro
/proj/[6]5.113.79.8/.isoMounts/113_SGFLinuxDev.iso=ro
/proj/[7]5.113.79.8/.isoMounts/1937_EGMOpenSourceLicensesLinuxDev.iso=ro
/proj/[8]5.113.79.8/.isoMounts/114_ThirdPartyLinuxDev.iso=ro
/proj/[9]5.113.79.8/.isoMounts/322_GDK_V4_2LinuxDev.iso=ro
/proj/[10]5.113.79.8/.isoMounts/115_GameSystem_V4LinuxDev.iso=ro
/proj/[11]5.113.79.8/.isoMounts/116_GDK_V4_1LinuxDev.iso=ro
/proj/[12]5.113.79.8/.isoMounts/OS.DEVELOP.FIELD.2.0.168.0.iso=ro
All of the ro branches are mounted from an NFS share. Maybe the extra
latency associated with the NFS share has something to do with the issue.
The file which is causing the "text file busy" error for me is coming form
/proj/[13]5.113.79.8/.isoMounts/114_ThirdPartyLinuxDev.iso=ro,whichisfrom
the NFS mount.
proc is mount --binded into the chroot filesystem
/proc on /proj/[14]5.113.79.8/devenv/proc type none (rw,bind)
On the Ubuntu 12.04 version of AuFS, we do not see these errors. Here is the
AuFS version from the 12.04 Ubuntu install.
root@U1204-32-BS:~# cat /sys/module/aufs/version
3.2-20120109
The NFS mount is NFSv3.
On Thu, Feb 4, 2016 at 1:50 AM, <[15]sf...@users.sourceforge.net> wrote:
James Burry:
> I tried the aufs-4.4 Linux tree from git (
> git://[16]github.com/sfjro/aufs4-linux.git
> <[17]https://github.com/sfjro/aufs4-linux.git>)
>
> I still see these "text file busy" errors. The errors happen in a chroot
> environment of the aufs mountpoint.
I've tried aufs4.4 too, and succeeded.
What is the difference between my test case and yours?
The branch filesystems?
(from /proc/mounts)
/dev/ram1 /dev/shm/ro ext2 ro,relatime,errors=continue,user_xattr,acl 0 0
/dev/ram0 /dev/shm/rw ext3 rw,relatime,stripe=4,data=ordered 0 0
none /dev/shm/u aufs rw,relatime,si=17c4456a52bd9806 0 0
(cat /sys/fs/aufs/br[01])
/dev/shm/rw=rw
/dev/shm/ro=ro
$ cd /dev/shm/u
$ stat -f . ../rw
 File: "."
  ID: 0    Namelen: 242   Type: UNKNOWN (0x61756673)
Block size: 1024Â Â Â Â Fundamental block size: 1024
Blocks: Total: 6907Â Â Â Â Free: 6839Â Â Â Â Available: 6430
Inodes: Total: 2048Â Â Â Â Free: 2016
 File: "../rw"
  ID: d79306e023c4a4a7 Namelen: 255   Type: ext2/ext3
Block size: 1024Â Â Â Â Fundamental block size: 1024
Blocks: Total: 6907Â Â Â Â Free: 6839Â Â Â Â Available: 6430
Inodes: Total: 2048Â Â Â Â Free: 2016
$ ldd /bin/sh /bin/bash /bin/chmod /usr/bin/ldd |
> fgrep -v 'not a dynamic' |
> sort | uniq |
> awk '
> NF == 1 {sub(/:$/, ""); print}
> NF == 4 {print $3}
> NF == 2 {print $1}
> ' |
> xargs -ri cp -ipu --parent \{\} ../rw/
$ cat << EOF > a.sh
> #!/bin/sh
> echo success
> EOF
$ sudo chroot . sh -c "chmod +x a.sh && ./a.sh"
success
J. R. Okajima
References
1. http://5.113.79.8/.scratch=rw
2.
http://5.113.79.8/.isoMounts/1790_SGF_Game_TreasuresOfOlympus_V2LinuxDev.iso=ro
3. http://5.113.79.8/.isoMounts/OS.NVIDIA-GF8.FIELD.2.0.168.0.iso=ro
4. http://5.113.79.8/.isoMounts/OS.SYSTEM.FIELD.2.0.168.0.iso=ro
5. http://5.113.79.8/.isoMounts/117_binLinuxDev.iso=ro
6. http://5.113.79.8/.isoMounts/113_SGFLinuxDev.iso=ro
7. http://5.113.79.8/.isoMounts/1937_EGMOpenSourceLicensesLinuxDev.iso=ro
8. http://5.113.79.8/.isoMounts/114_ThirdPartyLinuxDev.iso=ro
9. http://5.113.79.8/.isoMounts/322_GDK_V4_2LinuxDev.iso=ro
10. http://5.113.79.8/.isoMounts/115_GameSystem_V4LinuxDev.iso=ro
11. http://5.113.79.8/.isoMounts/116_GDK_V4_1LinuxDev.iso=ro
12. http://5.113.79.8/.isoMounts/OS.DEVELOP.FIELD.2.0.168.0.iso=ro
13. http://5.113.79.8/.isoMounts/114_ThirdPartyLinuxDev.iso=ro
14. http://5.113.79.8/devenv/proc
15. mailto:sf...@users.sourceforge.net
16. http://github.com/sfjro/aufs4-linux.git
17. https://github.com/sfjro/aufs4-linux.git
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