Date: Wed, 21 Oct 2009 10:21:29 -0600 From: Scott Long <scottl@samsco.org> To: Mike Watters <mike@mwatters.net> Cc: freebsd-current@freebsd.org Subject: Re: 8.0-RC1 amd64 - filesystem on scsi disk related memory corruption w/ gte 4GB ram Message-ID: <441DF1EC-F378-4F25-BEA3-FCEB529659D2@samsco.org> In-Reply-To: <4ADE4D19.3090907@mwatters.net> References: <4ADE4D19.3090907@mwatters.net>
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On Oct 20, 2009, at 5:51 PM, Mike Watters wrote: > Running 8.0-RC1 on an amd64 workstation, I have run into what > appears to > be a memory corruption issue when doing (UFS2) filesystem I/O on an > attached SCSI disk when more than 4GB of RAM is installed, or when 4GB > is installed and "memory hole remapping" is enabled in the BIOS. > > The SCSI card is an LSI20160 (sym(4), PCI U160). The SCSI disk is a > Seagate ST373455LW (U320). The current motherboard is an ASUS M3A76- > CM > (AMI BIOS, AM2+ socket). I have a boot -v dmesg (34kb) available > from a > livefs cd boot with 8GB installed and memory hole remapping turned on > (case 4 result). The source used to build the CD was cvsup'ed a > week or > two ago. The sym driver has been having issues on-and-off for years with 64bit memory configurations. If at all possible, I'd recommend replacing your hardware; fixing the driver has proven to be hard given the limited resources available and the age of the hardware. Scott
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