Date: Sat, 07 Nov 2009 03:20:23 -0400 From: "Simon" <simon@optinet.com> To: "freebsd-hardware@freebsd.org" <freebsd-hardware@freebsd.org> Subject: Re: [Fwd: Re: amr driver issues in 7.1-RELEASE] Message-ID: <20091107084702.7CC08106566B@hub.freebsd.org> In-Reply-To: <49D5FFA7.3090408@collaborativefusion.com>
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On Fri, 03 Apr 2009 08:23:03 -0400, Steve Polyack wrote: >> It appears this has not been fixed in 7.1-p4 I've been waiting to upgrade due >> to this but was forced after latest root exploit was found recently. Upon MySQL >> upgrade, running mysql_upgrade which upgrades and checks all the tables, >> I got 2 of these messages while a large ,1.4G, mysql table was being dumped >> to array so it could be repaired. I don't know what to make of this error and >> are not sure if it could be safely ignored. >> >> amr0: Too many retries on command 0xc71ceaa8. Controller is likely dead >> amr0: Too many retries on command 0xc71cdce8. Controller is likely dead >> >> Thank you in advance! >> >> -Simon >> >> >We still see these as well. I've also been ensured that these are >harmless messages. As far as I can tell from my own investigation, the >behavior has not changed other than the addition of tracking of how many >retries there have been when submitting commands to the controller. >When the controller mailbox is "busy", the driver must wait before >submitting a command. If the driver has to retry 1000 times twice >within one second, it logs the messages you are seeing. This logging >was simply not present before 7.1. >As I've said and been told, the message is harmless if your machine is >still responding. I just wanted to follow up and let the list know my instance of this error was being caused by faulty drives. If you get this message, I would be concerned. Backup your data and run every single drive connected to this controller via manufacturer's diagnostic full test. A single faulty drive in RAID setup can cause mediocre performance and this error to show up. -Simon
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