Re: mdadm-3.4 regression tests

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Jes Sorensen wrote:
Bruce Dubbs <bruce.dubbs@xxxxxxxxx> writes:
I have a problem when trying to document madam-3.4 for the Linux From
Scratch project.  The package builds fine:

tar -xf mdadm-3.4.tar.xz
cd mdadm-3.4
make
make test

Then when I run:

sudo ./test --keep-going --logdir=test-logs --save-logs

Some tests fail and one hangs forever.  I can post logs if needed.

Please run './test' as root
Testing on linux-4.4.1-lfs-7.9-rc1 kernel
Saving logs to test-logs
tests/00linear... succeeded
tests/00multipath... succeeded
tests/00names... succeeded
tests/00raid0... succeeded
tests/00raid1... FAILED - see test-logs/log-00raid1 for details
cp: cannot stat '/var/tmp/log': No such file or directory

Do you have a proper /var/tmp on that system?

I'm not sure what you mean by 'proper', but I have

$ ls -ld /var/tmp
drwxrwxrwt 2 root root 4096 Feb 15 22:45 /var/tmp

I'm not concerned about the missing '/var/tmp/log' because I think the failure triggers a mv to test-logs/log-00raid1 and the message is the result of a subsequent mv command at the end of the test execution loop.

'/var/tmp/log' does exist while the test is running.

tests/00raid10... succeeded
tests/00raid4... succeeded
tests/00raid5... succeeded
tests/00raid6... succeeded
tests/01r1fail... succeeded
tests/01r5fail... succeeded
tests/01r5integ... succeeded
tests/01raid6integ... succeeded
tests/01replace...

The failure says:

++ case $* in
++ udevadm settle
+++ cat /proc/sys/dev/raid/speed_limit_max
++ p=2000
++ echo 20000
++ case $* in
++ /tmp/mdadm/mdadm-3.4/mdadm --quiet -S /dev/md0
++ rv=1
++ case $* in
++ udevadm settle
++ echo 2000
++ cat /var/tmp/stderr
++ return 1
++ mdadm -B /dev/md0 -l 1 --assume-clean -n2 /dev/loop0 /dev/loop1
++ rm -f /var/tmp/stderr
++ case $* in
++ case $* in
++ /tmp/mdadm/mdadm-3.4/mdadm --quiet -B /dev/md0 -l 1 --assume-clean
-n2 /dev/loop0 /dev/loop1
++ rv=1

...

The bigger problem is that 01replace hangs forever.  Looking at my
process list:
root     16064     2  0 22:45 ?        00:00:00 [md0_raid1]
root     16093 16049  0 22:45 pts/1    00:00:00
/tmp/mdadm/mdadm-3.4/mdadm --quiet /dev/md0 --remove /dev/loop1

The --remove operation never completes.

$ cat /proc/mdstat
Personalities : [raid1] [raid10] [raid6] [raid5] [raid4] [linear] [raid0]
md0 : active raid1 loop5[5] loop4[4](S) loop3[3] loop2[2] loop1[1](F) loop0[0]
       19968 blocks super 1.2 [4/4] [UUUU]

Can someone help me figure out why the regression tests give these
problems.  kernel issue?  test program issue?  internal issue?

The kernel was built with:

CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=y
CONFIG_MD_RAID456=y
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set

Are there other options needed?

Thanks for any help.

Nobody here have a clue what kernel you are running - giving us a
snippet of the .config and no detail about the kernel version is rather
useless.

I guess you just missed it.  The log above says:

Testing on linux-4.4.1-lfs-7.9-rc1 kernel

The full config is at:

http://anduin.linuxfromscratch.org/~bdubbs/files/config-lfs-7.9-rc1

Thanks for responding.

  -- Bruce




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