Date: Fri, 22 May 2009 20:40:03 +0100 From: Joe Karthauser <joe@freebsd.org> To: Alexander Motin <mav@freebsd.org> Cc: freebsd-stable@freebsd.org, Kip Macy <kmacy@freebsd.org> Subject: Sudden wierd SATA problem on RELENG_7 (Re: ZFS hanging at kernel boot now, but didn't before... (Re: ZFS MFC heads up)) Message-ID: <4A16FF93.2020504@freebsd.org> In-Reply-To: <3c1674c90905221139i6f335062k74d641b7c91c188c@mail.gmail.com> References: <3c1674c90905201459k19776d53n309b2abeab0f8d0a@mail.gmail.com> <200905202209.n4KM9Bcg094853@lava.sentex.ca> <3c1674c90905201541n65f997e6jaa20d93bf566fb98@mail.gmail.com> <68BDAD74-021A-4169-B003-21A2BCF2AD5C@transsys.com> <4A156AD7.8000003@icyb.net.ua> <4A159482.9080903@freebsd.org> <3c1674c90905211128n45814519o903ee2b6eb3cf195@mail.gmail.com> <4A16E37C.2030005@freebsd.org> <3c1674c90905221139i6f335062k74d641b7c91c188c@mail.gmail.com>
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Hi Alexander, I've love it if you were able to provide some insight into this problem. I'm going to try switching sata cables around next to see if the problem goes away if I disconnect some combination of bays. Thanks, Joe on 22/05/2009 19:39 Kip Macy said the following: > Motin is your best bet in tracking down ATA problems. > > Cheers, > Kip > > > On Fri, May 22, 2009 at 10:40 AM, Joe Karthauser<joe@freebsd.org> wrote: >> Hi Kip, >> >> I seriously don't understand what has happened. If I boot kernel.old I still >> get the same problem. Very confusing. :(. >> >> Joe >> >> on 21/05/2009 19:28 Kip Macy said the following: >>> I have no idea what is happening. I think our best bet is having >>> someone with insight into ATA provide us with help in adding >>> diagnostics. >>> >>> Sorry for the trouble. Perhaps you can just roll back to 7.2 for now. >>> >>> Cheers, >>> Kip >>> >>> >>> On Thu, May 21, 2009 at 10:50 AM, Joe Karthauser<joe@freebsd.org> wrote: >>>> Hmm, I've had a bit of a miserable afternoon trying to fight my RELENG_7 >>>> server, which now doesn't boot. :(. >>>> >>>> So, it's a ZRAID2 pool with a ufs/gmirror root partition split over 5 >>>> disks >>>> (gmirror on 500Mb partition on each of five disks, and zraid2 over the >>>> rest >>>> of each drive). >>>> >>>> What I did was to update the userland, and then reboot. I didn't upgrade >>>> the >>>> kernel (but I've subsequently done that and have the same problem). >>>> >>>> What happens is that the kernel hangs booting just after displaying a >>>> LABEL >>>> message or ZFS pool/spool message. I _can_ get it to boot if I boot >>>> single >>>> user with acpi switched off. When I do that I can manually start zfs, and >>>> mount all the partitions. However, one of the disks is missing.... more >>>> on >>>> that next. >>>> >>>> The machine is running a gigabyte motherboard (domestic gamer P35 board, >>>> similar to this >>>> >>>> http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=2533, >>>> although it might be a DS4 variant). I've got 5 of the 6 sata ports >>>> wired >>>> to a 5 unit SATA hot swap bay (5 drives vertially mounted into 3 5-1/4" >>>> bays >>>> kind of thing). >>>> >>>> Now, because of the gmirror I can boot the system on any disk, or >>>> combination of plugged in disks. I should be able to succeed with the >>>> kernel probe up to the attempt to mount the root filesystem irrespective >>>> of >>>> any zfs pool, etc. And, indeed, this has been working fine for about two >>>> years. >>>> >>>> But, now it hangs in the same place no matter what disk I boot on (I've >>>> tried every bay). >>>> >>>> But, without ACPI enabled it does appear to boot ok... what's going on >>>> here? >>>> Is it possible that the machine has developed a hardware fault? >>>> >>>> Ok, finally, if I boot with ACPI disabled then one of the disks is >>>> missing. >>>> If I unplug it I get a disconnect message from the ata device, and a >>>> reconnect and reinit attempt when I plug it back in, but no device >>>> appears >>>> on the bus. Usually I can do a 'atacontrol detach sata4; sleep 1; >>>> atacontrol >>>> attach sata4' and the device reappears. This happens on the other buses, >>>> but >>>> not on the last one. It's not the disk, because if I swap it into another >>>> bay, it comes up and appears on the bus. On the other hand it doesn't >>>> appear >>>> to be that controller or slow in the drive bay because if I unplug all >>>> the >>>> over disks the system will boot that disk and get as far as the hang.... >>>> hmm. >>>> >>>> Is this a consequence of disabling the ACPI? >>>> >>>> Does anyone have a clue what might be going on? >>>> >>>> Joe >>>> _______________________________________________ >>>> freebsd-stable@freebsd.org mailing list >>>> http://lists.freebsd.org/mailman/listinfo/freebsd-stable >>>> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >>>> >>> >>> >> > > >
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