Ping :) On 21 September 2018 at 18:16, Roel Van de Paar <[email protected]> wrote: > > [1.] One line summary of the problem: > > "cd: error retrieving current directory: getcwd: cannot access parent > directories: No such file or directory" on move of directories to > another volume > > [2.] Full description of the problem/report: > > Example output (testcase below): > > /tmp/1/2$ cd .. > cd: error retrieving current directory: getcwd: cannot access parent > directories: No such file or directory > /tmp/1/2/..$ cd .. > cd: error retrieving current directory: getcwd: cannot access parent > directories: No such file or directory > /tmp/1/2/../..$ cd .. > cd: error retrieving current directory: getcwd: cannot access parent > directories: No such file or directory > /tmp/1/2/../../..$ cd .. > cd: error retrieving current directory: getcwd: cannot access parent > directories: No such file or directory > /tmp/1/2/../../../..$ cd .. > cd: error retrieving current directory: getcwd: cannot access parent > directories: No such file or directory > /tmp/1/2/../../../../..$ cd .. > cd: error retrieving current directory: getcwd: cannot access parent > directories: No such file or directory > /tmp/1/2/../../../../../..$ cd .. > /tmp$ > > - The number of ".." required is not correct > - The number of ".." matches the number of subdirs (see below) > > [4.] Kernel information > > Tested on latest updates of: > * Ubuntu Xenial > * Ubuntu Bionic > * Centos 7 > > [7.] A small shell script or example program which triggers the > problem (if possible) > > In session 1 > cd /tmp > mkdir -p 1/2 > cd 1/2 > > In session 2 (another terminal session) > cd /tmp > mkdir -p 3/4/5/6/7 > mv 1 3/4/5/6/7 > mv 3 /dev/shm # where /dev/shm is some other disk. /dev/shm > reproduction works too. If the disk is the same, the issue will not > show. > > Back to session 1 > cd .. # fail > cd .. # fail > cd .. # fail > cd .. # fail > cd .. # fail > cd .. # fail > cd .. # works, but to completely incorrect directory given the > many 'cd ..'``` > > The problem is made more clear here by using 3/4/5/6/7 but you can > also just use a single subdir to see it
Roel Van de Paar, Technical Director - Quality Assurance, Percona
