Kernel ACPI Error SMBus/IPMI/GenericSerialBus

I found the next error message in the CSF log

ACPI Error: SMBus/IPMI/GenericSerialBus write requires Buffer of length 66, found length 32 (20130517/exfield-389)

Dec 15 10:48:57 srv kernel: ACPI Error: SMBus/IPMI/GenericSerialBus write requires Buffer of length 66, found length 32 (20130517/exfield-299)
Dec 15 10:48:57 srv kernel: ACPI Error: Method parse/execution failed [\_SB_.PMI0._PMM] (Node ffff88042949d960), AE_AML_BUFFER_LIMIT (20130517/psparse-536)
Dec 15 10:48:57 srv kernel: ACPI Exception: AE_AML_BUFFER_LIMIT, Evaluating _PMM (20130517/power_meter-339)

The message is generated every 5 minutes when lm-sensors try to read the values from the power meter sensor(s). HP has ignored the spec for this method and the result is the error shown above.
The problem can be solved on two ways:
– you can ignore this message (it is safely to ignore)
– you can skip the power meter sensors (at least until someone fix this)

Since I already have the latest firmware, I can’t suggest the firmware update (at least for gen 6, 7 and gen8 servers).

To reproduce the problem just find the file power1_average and try to read it

find /sys/devices/LNXSYSTM\:00/ |grep ACPI000D

In my case the file is located in /sys/devices/LNXSYSTM:00/device:00/ACPI000D:00/

Read the file

cat /sys/devices/LNXSYSTM:00/device:00/ACPI000D:00/power1_average

The result will be probably 0 and the error will be thrown in the log.

To solve the problem check the exact sensor which is affected with:

[root log]# sensors
Adapter: ACPI interface
power1:        0.00 W  (interval = 300.00 s)

As you can see above, the sensor is power_meter-acpi-0. Now disable the sensor by adding

chip "power_meter-acpi-0"
        ignore power1

at the end of the /etc/sensors3.conf file.

The reboot is recommended but it is not necessary.

Check the sensor again with

[root log]# sensors
Adapter: ACPI interface

As you can see, the line “power1….” is missing and the log is empty.

Notes : Cannot delete virtual server

That seems to be a bug that shows up occasionally, though it’s not reliably reproducible, so it hasn’t been corrected.

The fix is simple though, you can delete the domain ID in “/etc/webmin/virtual-server/domains/”, restart Virtualmin, and then it should be gone from your drop-down list.




Setting up log file rotation ..
.. Log file rotation failed! : .. the log file /var/log/virtualmin/xxxxxxxxxxxx_access_log is already being rotated at /usr/libexec/webmin/ line 1433.

Delete the log files in /var/log/virtualmin

Delete the user in “User and Group” in webmin

Next step : re-create the virtual server!

VirtualMIN Backup Failed – MySQL “MariaDB” crash

Good day! I ran into a problem when backing up all my virtualMIN websites. When the backup failed something stange happened to MySQL “MariaDB” database server. When backup fail, MariaDB crash!

To fix this issue I added a command to run after backup:

systemctl stop mariadb ; systemctl start mariaDB

Located in > VirtualMIN > Scheduled Backups >

This will prevent mariaDB to crash after a failed virtualMIN backup!

Notes: Check the size of your /tmp and increase it!

If you are having “Out of resources Errcode : 24 message”

The mysql error:  Out of resources when opening file… (Errcode: 24)   indicates that the number of files that msyql is permitted to open has been exceeded.

This limit is controlled by the variable open_files_limit.   You can read this in phpMyAdmin (or the MySQL command line utility) with the statement:


To set this variable to a higher number, edit the /etc/my.cnf file and add the lines:

open_files_limit = 5000

Then be sure to restart mysql with:   sudo /etc/init.d/mysql restart

Remember to use the server administrative account and sudo when you edit the file.  The choice of editor is up to you.

Now, showing the variable should show the number you choose.

Note that 5000 shown above is an example. A good rule of thumb is to take the current number of files and add 1000 to it. If this doesn’t help, add some more.  This number affects the amount of memory that MySQL uses, so setting it to a very high number is not a good idea.

You may also verified your /etc/my.cfg configurations:

datadir = /var/lib/mysql
socket = /var/lib/mysql/mysql.sock

innodb_file_per_table = 1
thread_concurrency = 8
query_cache_size = 64M
thread_cache_size = 8
myisam_sort_buffer_size = 256M
read_rnd_buffer_size = 32M
read_buffer_size = 4M
sort_buffer_size = 4M
table_open_cache = 512
max_allowed_packet = 7M
key_buffer_size = 512M
open_files_limit = 10000
max_connections = 32768
innodb_buffer_pool_size = 40M


!includedir /etc/my.cnf.d

After modifications you must restart MySQL server

# systemctl restart mariadb

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Opencart 2.3.0.x Additional Alert Email not saved

Here is a simple fix:

In file ‘admin/view/template/setting/setting.tpl’ replace the line:

<textarea name="config_mail_alert_email" rows="5" placeholder="<?php echo $entry_mail_alert_email; ?>" id="input-alert-email" class="form-control"><?php echo $config_alert_email; ?></textarea>

with this one:

<textarea name="config_alert_email" rows="5" placeholder="<?php echo $entry_mail_alert_email; ?>" id="input-alert-email" class="form-control"><?php echo $config_alert_email; ?></textarea>

Download the OCMOD here!

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