Date: Fri, 11 Oct 2002 18:30:03 -0700 (PDT) From: "Craig Stratton" <craig@avnet.co.uk> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/34711: frequent system stall under moderate scsi load Message-ID: <200210120130.g9C1U3Kt069368@freefall.freebsd.org>
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The following reply was made to PR kern/34711; it has been noted by GNATS. From: "Craig Stratton" <craig@avnet.co.uk> To: "Nate Lawson" <nate@root.org> Cc: Subject: Re: kern/34711: frequent system stall under moderate scsi load Date: Fri, 16 Aug 2002 09:20:45 +0100 Hi Nate, The server ran two busy bulletin boards using UBB 5.45 which is all file based. One of the boards has been moved to another server, which has made the situation better operationally, but the problem still occurs under heavy load. It seems to be when too many users post to the same thread and the UBB is trying to regenerate the page, the file handling gets confused and locks itself up. Sometimes it sorts itself out after a while, where i think one of the threads probably gets killed off or times out and dies, and it seems to unblock itself. Other times it either reboots itself, or i have to do it. I had not progressed the problem any further as the situation had improved after removing one of the bulletin boards, and the hardware/software should be replaced this month. The server is only a P166 with 64MB, but i have seen heavier load on similar spec servers that has been handled fine. The same board used to run on a P75 with 16MB, which never had any problems at all. I am fairly certain it is a scsi or file system problem, but it could be a physical hardware problem. No error messages are generated when it runs into problems, or none are logged. Regards, Craig ----- Original Message ----- From: "Nate Lawson" <nate@root.org> To: <freebsd-gnats-submit@FreeBSD.org>; "Craig" <craig@avnet.co.uk> Sent: Friday, August 16, 2002 8:22 AM Subject: Re: kern/34711: frequent system stall under moderate scsi load > It's been a while since there has been progress on this bug. Have things > improved for you? > > -Nate > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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