-----Original Message----- From: CentOS [mailto:centos-bounces@centos.org] On Behalf Of Noam Bernstein Sent: Sunday, October 22, 2017 8:54 AM To: CentOS mailing list centos@centos.org Subject: [CentOS] Areca RAID controller on latest CentOS 7 (1708 i.e. RHEL 7.4) kernel 3.10.0-693.2.2.el7.x86_64
Is anyone running any Areca RAID controllers with the latest CentOS 7 kernel, 3.10.0-693.2.2.el7.x86_64? We recently updated (from 3.10.0- 514.26.2.el7.x86_64), and we’ve started having lots of problems. To add to the confusion, there’s also a hardware problem (either with the controller or the backplane most likely) that we’re in the process of analyzing. Regardless, we have an ARC1883i, and with the older kernel the system is stable, but with the new kernel it locks up within 1-12 hours of boot, with errors in /var/log/messages that start with things like kernel: arcmsr0: abort device command of scsi id = 0 lun = 0 (that is indeed the RAID scsi device) and within a few minutes of those also things like Oct 19 23:06:57 radon kernel: INFO: task xfsaild/dm-9:913 blocked for more than 120 seconds.
You mention you have hardware problems, what are they? A write is blocked for longer than they host is willing to wait. There are a few sysctl parameters that affect this but I'd be more willing to suggest its related to your hardware problems.
jlc