Date: Mon, 17 Sep 2001 14:35:57 +0930 From: Greg Lehey <grog@FreeBSD.org> To: john_wilson100@excite.com Cc: freebsd-hackers@freebsd.org Subject: Re: VINUM PANIC ON -STABLE Message-ID: <20010917143557.F494@wantadilla.lemis.com> In-Reply-To: <29623361.1000695892678.JavaMail.imail@doby.excite.com>; from john_wilson100@excite.com on Sun, Sep 16, 2001 at 08:04:46PM -0700 References: <29623361.1000695892678.JavaMail.imail@doby.excite.com>
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On Sunday, 16 September 2001 at 20:04:46 -0700, john_wilson100@excite.com wrote: > Hi Greg, > > > On Mon, 17 Sep 2001 12:04:27 +0930, Greg Lehey wrote: >> >>> Subdisk home.p0.s0: >>> Size: 40822392320 bytes (38931 MB) >>> State: up >>> Plex home.p0 at offset 0 (0 B) >>> Drive home1 (/dev/ad4s1h) at offset 135680 (132 kB) >>> >>> Subdisk home.p0.s1: >>> Size: 39566177280 bytes (37733 MB) >>> State: up >>> Plex home.p0 at offset 285696 (279 kB) >>> Drive home2 (/dev/ad6s1f) at offset 135680 (132 kB) >> >> These ones, though, are different. That's a bug in Vinum. You >> didn't say, but I assume that it was the newfs of home that caused >> the crash. > > It was newfs indeed. I had initially miscounted the size of the > second partition and instead of repartitioning, decided to put 0 in > the config file hoping that Vinum would choose the lowest common > denominator. It should do. As I say, it's a bug. >> You should really repartition your physical drives (spindles) to >> have only one Vinum drive each. Then make sure that both subdisks >> are of the same size, and you shouldn't have any more problems. >> Yes, this doesn't fix the bug, but I'll work on that. > > Great, I'll do that. Do you have enough information to fix the bug? I think so. If not, I hope I have enough information to reproduce it. If anybody else listening wants to have a go, it's in the function update_plex_config in vinumconfig.c. I've taken a look, and there's no check there that the sizes are the same, though it does check that the subdisk sizes are a multiple of the stripe size. > I presume the coredumps are of little use to you, because you > already know what caused the crash, but please let me know if you > want me to keep them. No, I should be able to reproduce it here. Thanks for the offer. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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