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Description of problem:
docker panic and crash when 'commit container' and 'get containers' happen simultaneously.
Version-Release number of selected component (if applicable):
1.12.6-16.el7.x86_64
Steps to Reproduce:
- In terminal window 1: Run 'docker ps -a' in an endless loop.
# while :; do docker ps -a; done > /dev/null 2>&1
- In terminal window 2: Run the test script 'scr' shown below in connection with the following container.
The script executes 'docker commit -c="LABEL ..." CONTAINER ID' in a loop.
The loop in the script ends when it detects that dockerd has produced a core dump.test script 'scr'
-----------------
#!/bin/bash
date
CONTAINER=$1
LABELS="LABEL"
for i in `seq 1 100`
do
LABELS="$LABELS testlabel_$i=\"this is label $i\""
done
COREFILE="/core.`ps -e | grep dockerd | awk '{print $1}'`"
while :
do
if [ -e $COREFILE ]
then
date
echo "docker daemon aborted with core dump"
file $COREFILE
exit
fi
docker commit -c="$LABELS" $CONTAINER registry.access.redhat.com/rhel7/test:testcommit > /dev/null 2>&1
docker rmi registry.access.redhat.com/rhel7/test:testcommit > /dev/null 2>&1
done
-----------------
Actual results:
Docker Crashes
Expected results:
Docker to not crash
Additional info:
https://github.com/docker/docker/issues/29547https://github.com/moby/moby/pull/29550https://github.com/docker/docker/commit/428ae707599aa343aa058cb54c10bc65b50d5856
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2017:2599
Description of problem: docker panic and crash when 'commit container' and 'get containers' happen simultaneously. Version-Release number of selected component (if applicable): 1.12.6-16.el7.x86_64 Steps to Reproduce: - In terminal window 1: Run 'docker ps -a' in an endless loop. # while :; do docker ps -a; done > /dev/null 2>&1 - In terminal window 2: Run the test script 'scr' shown below in connection with the following container. The script executes 'docker commit -c="LABEL ..." CONTAINER ID' in a loop. The loop in the script ends when it detects that dockerd has produced a core dump.test script 'scr' ----------------- #!/bin/bash date CONTAINER=$1 LABELS="LABEL" for i in `seq 1 100` do LABELS="$LABELS testlabel_$i=\"this is label $i\"" done COREFILE="/core.`ps -e | grep dockerd | awk '{print $1}'`" while : do if [ -e $COREFILE ] then date echo "docker daemon aborted with core dump" file $COREFILE exit fi docker commit -c="$LABELS" $CONTAINER registry.access.redhat.com/rhel7/test:testcommit > /dev/null 2>&1 docker rmi registry.access.redhat.com/rhel7/test:testcommit > /dev/null 2>&1 done ----------------- Actual results: Docker Crashes Expected results: Docker to not crash Additional info: https://github.com/docker/docker/issues/29547 https://github.com/moby/moby/pull/29550 https://github.com/docker/docker/commit/428ae707599aa343aa058cb54c10bc65b50d5856