Date: Sun, 12 Sep 2010 19:32:40 +0100 From: a.smith@ukgrid.net To: Alexander Motin <mav@FreeBSD.org> Cc: freebsd-fs@freebsd.org, Andriy Gapon <avg@icyb.net.ua> Subject: Re: ZFS related kernel panic Message-ID: <20100912193240.16694ph09065z484@webmail2.ukgrid.net> In-Reply-To: <4C8A7B20.7090408@FreeBSD.org> References: <20100909140000.5744370gkyqv4eo0@webmail2.ukgrid.net> <20100909182318.11133lqu4q4u1mw4@webmail2.ukgrid.net> <4C89D6A8.1080107@icyb.net.ua> <20100910143900.20382xl5bl6oo9as@webmail2.ukgrid.net> <20100910141127.GA13056@icarus.home.lan> <20100910155510.11831w104qjpyc4g@webmail2.ukgrid.net> <20100910152544.GA14636@icarus.home.lan> <20100910173912.205969tzhjiovf8c@webmail2.ukgrid.net> <4C8A6B26.8050305@icyb.net.ua> <20100910184921.16956kbaskhrsmg4@webmail2.ukgrid.net> <4C8A7B20.7090408@FreeBSD.org>
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Quoting Alexander Motin <mav@FreeBSD.org>: > > It looks like during timeout handling (it is quite complicated process > when port multiplier is used) some request was completed twice. So > original problem is probably in hardware (try to check/replace cables, > multiplier, ...), that caused timeout, but the fact that drive was > unable to handle it is probably a siis(4) driver bug. > Hi, about checking for faulty hardware, to recap... So far I have replaced the server, moved from i386 to amd64, and now I have also replaced the eSATA PCI card. With all of these changes I am still getting the panics. On Monday I will swap out the drive enclosure and the cable which should cover off the things you mentioned. Once Ive tested that Ill let you know if Im still seeing the issue, thanks Andy. PS the disk enclosure is this: http://uk.startech.com/product/S352U2RER-35in-eSATA-USB-Dual-SATA-Hot-Swap-External-RAID-Hard-Drive-Enclosure Which according to the specs is using a Sil5744, I assume this is providing the port multiplier support. Just in case thats of any help, ie any know issues...
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