Re: Debian 8 on HP ProLiant freezes: task * blocked for more than 120 seconds
On Fri, Jul 21, 2017 at 12:30:39PM +0200, rpr // wrote:
> Hi!
>
> Recently I have installed Debian 8 (jessie) on a HP ProLiant DL360 G4
> server (2 x Xeon 3 GHz; RAM 3 GiB ECC DDR 333 MHz; HP Smart Array 6i;
> RAID1 72 GB with 2 x 72 GB SCSI Ultra 320 HDD). For some reasons
> upgrade to Debian 9 is not an option at the moment.
>
> $ uname -a
> Linux myserver 3.16.0-4-amd64 #1 SMP Debian 3.16.43-2+deb8u2 (2017-06-26)
> x86_64 GNU/Linux
>
> After a day or two of uptime the system freezes (network services not
> working, users cannot login). On the console I can see kernel messages
> as the following:
>
> INFO: task jbd2/cciss!c0d0:297 blocked for more than 120 seconds
> Not tainted 3.16.0-4-amd64 #1
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> INFO: task jbd2/cciss!c0d0:301 blocked for more than 120 seconds
> Not tainted 3.16.0-4-amd64 #1
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>
> The messages repeat a couple of times every 120 sec. Sometimes the
> messages also mention other tasks, e.g. kworker, apache2.
The problems come from the disk controller. It's crap. If you
can afford to replace the old SCSI disks with two 120GB SATA
SSDs you will be very pleased with the performance and
stability.
You would probably also be happier with more RAM.
-dsr-
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