Date: Wed, 20 Dec 2006 12:06:34 -0500 From: Scott Long <scottl@samsco.org> To: Rong-en Fan <grafan@gmail.com> Cc: FreeBSD Current <freebsd-current@freebsd.org>, mjacob@freebsd.org Subject: Re: bigdisk and scsi_da Message-ID: <45896D9A.4070204@samsco.org> In-Reply-To: <6eb82e0612200901i7a95ad49sd5b0ea66db72939b@mail.gmail.com> References: <6eb82e0612181734n92e4a95l9d54aeb1edae87d1@mail.gmail.com> <4589518C.3070507@samsco.org> <6eb82e0612200716x4fcf6960t3c5fe5cab5fd0bcf@mail.gmail.com> <458955F0.4020102@samsco.org> <6eb82e0612200901i7a95ad49sd5b0ea66db72939b@mail.gmail.com>
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Rong-en Fan wrote: > On 12/20/06, Scott Long <scottl@samsco.org> wrote: >> Rong-en Fan wrote: >> > On 12/20/06, Scott Long <scottl@samsco.org> wrote: >> >> Rong-en Fan wrote: >> >> > It seems to me that scsi_da.c reports the wrong size: >> >> > >> >> > da1 at mpt0 bus 0 target 0 lun 0 >> >> > da1: <SILVER TN-6212S-U4D 347G> Fixed Direct Access SCSI-5 device >> >> > da1: 320.000MB/s transfers (160.000MHz, offset 127, 16bit), Tagged >> >> > Queueing Enabled >> >> > da1: 0MB (1 0 byte sectors: 0H 0S/T 0C) >> >> > >> >> > While geom shows the right one: >> >> > >> >> > Geom name: da1 >> >> > Providers: >> >> > 1. Name: da1 >> >> > Mediasize: 4991221760000 (4.5T) >> >> > Sectorsize: 512 >> >> > Mode: r0w0e0 >> >> > fwsectors: 63 >> >> > fwheads: 255 >> >> > >> >> > Speaking of bigdisk, can gpt modify on-disk table on-fly? >> >> > >> >> > Regards, >> >> > Rong-En Fan >> >> >> >> Just for reference, what version of FreeBSD is this? >> > >> > Ah, it's a 6.2-RC1. I thought I posted to stable@... >> > >> >> Ok, it makes a whole lot more sense now. 7-CURRENT has checks to >> prevent the divide-by-zero. I'm still looking into the actual >> bug, though. > > OK. Manually backports rev 1.10 of sys/dev/cam/cam.c solved this > divided by zero problem. Could you or mjacob MFC this to RELENG_6 > and/or RELENG_6_2? > > Thanks, > Rong-En Fan Does it just prevent the panic, or does it also fix the bogus display too? Scott
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