Date: Thu, 24 Oct 2002 11:12:11 +0400 (MSD) From: Eugene Mitrofanov <eugene@imedia.ru> To: Coleman Kane <cokane@FreeBSD.org> Cc: freebsd-stable@FreeBSD.org, "Greg 'groggy' Lehey" <grog@FreeBSD.org> Subject: Re: vinum + 4.7 release = page fault Message-ID: <XFMail.20021024111211.eugene@imedia.ru> In-Reply-To: <20021023163058.GA61012@freebsd.org>
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I have this problem on two machines with 4.7-R. One of them has two 17Gb SCSI disks and four RAID-1 vinum mirrors and another has one IDE drive with one RAID-1 mirror. I use this machine to reproduce the 'vinum start' problem. Both system are using the GENERIC 4.7-R kernel. On 23-Oct-2002 Coleman Kane wrote: > I recently installed 4.7-R on a machine that runs vinum and have had no > trouble with my system. I also have run vinum start multiple times and > all it seems to do is creade another md device (md?: malloc disk). > I have not experienced the page fault or kernel crash issue you are > describing. I am using a vinum mirror over two 4-GB drives. > > On Wed, Oct 23, 2002 at 07:59:27PM +0930, Greg 'groggy' Lehey wrote: >> On Wednesday, 23 October 2002 at 14:16:48 +0400, Eugene Mitrofanov >> wrote: >> > Hi >> > >> > Double 'vinum start' command causes the system crash. >> >> That's not the same thing as a page fault. >> >> > How to repeat it quickly. >> > Install 4.7-release. Creat one RAID-1 vinum disk. Put >> > 'start_vinum="YES"' >> > into /etc/rc.conf. >> > The system boots and works fine with a fs_located_on_vinum, but if you >> > run >> > 'vinum start' and then do 'ls /fs_located_on_vinum' you get page >> > fault. >> >> There are some known issues with running start twice. I thought it >> had been fixed in 4.7. But if you have a system crash, you should >> submit a stack back trace. If you have a page fault, don't worry. >> Several per second are quite acceptable: >> >> r b w avm fre flt re pi po fr sr s0 m0 in sy cs us sy >> id >> 1 0 0 27704 2636 262 0 3 2 5 8 26 0 131 4294966892 48 >> 34 11 55 >> 1 0 0 28784 1552 276 0 0 0 0 0 3 0 108 577 17 78 22 >> 0 >> 1 0 0 29908 832 284 0 0 0 0 0 0 0 104 388 17 85 15 >> 0 >> >> See the column 'flt'? That's the number of page faults per second on >> this machine. It's high, but not serious. >> >> Greg >> -- >> See complete headers for address and phone numbers >> >> To Unsubscribe: send mail to majordomo@FreeBSD.org >> with "unsubscribe freebsd-stable" in the body of the message > > -- > Coleman Kane coleman@domainit.com > System Administrator WK: 513.351.4222 > DomainIt!, Inc. Cell: 513.885.0666 - - - - 8< - - - - - - - - - - - - - - - - - - - - - - - - - 8< - - - - Eugene V. Mitrofanov Independent Media EMIT-RIPN EVM7-RIPE system administrator To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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