Date: Fri, 25 Jun 1999 14:34:48 +0400 (MSD) From: Dmitry Flitmann <dflit@nns.ru> To: freebsd-hackers@freebsd.org Subject: Xeon box hanging, top shows "FFS_node". FFS problem? Message-ID: <VL8jrSteRPm3@gera.nix.nns.ru>
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Hi there! We've got a "fast" computer for our database (Intel SC450NX, 2xXeon/500MHz, 1G RAM, SymBios U2W SCSI onboard, 2xPCI, 3x18G Seagate Cheetah, OS - FreeBSD 3.2-R). At first, we had to patch NCR driver - then it worked fine for some time. When we started to load our new server with data (1 process creating about 50 small files in a second), a strange effect appears - system ~hangs, it does not create any new processes anymore. When we have "top" running at that moment, we can see that main process (which creates files) has state "FFS_node". Our first idea was that the problem is in a patched ncr driver, so we have replaced SymBios with Adaptec 2940U2W, but effect persists. CPU load is not very high, there are not a lot of processes, and no one keeps a lot of files open simultaneously. Is it a problem in FFS implementation? Or, maybe, some kernel option can help? sorry for poor English. Sincerely, Dmitry Flitman National News Service/National Electronic Library. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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