http://bugzilla.kernel.org/show_bug.cgi?id=7246 mailinglists.javier@xxxxxxxxx changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mailinglists.javier@xxxxxxxx | |m ------- Comment #12 from mailinglists.javier@xxxxxxxxx 2008-02-25 01:34 ------- (In reply to comment #11) > If there is no more problems then it looks like the bug can be closed now. > Thanks. > The bug still exists as you can see in the following bug report on debian: "linux-2.6.18-6-amd64: 3w-xxxx v1.26.02.001 causes datacorruption with AMD64/EM64T with >2GB RAM" http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=464923 The problem is with the driver included in the kernel. More information on http://www.3ware.com/KB/article.aspx?id=15243 I'll quote the first post of the bug report, it includes very relevant/useful information: " Package: linux-2.6.18-6-amd64 Severity: critical Tags: patch Justification: causes serious data loss How to reproduce: 10036:/tmp# uname -a Linux 10036 2.6.18-6-amd64 #1 SMP Wed Jan 23 06:27:23 UTC 2008 x86_64 GNU/Linux 10036:/tmp# grep MemTotal /proc/meminfo MemTotal: 8179992 kB 10036:/tmp# dd if=/dev/urandom bs=1048576 count=10240 | tee testfile | md5sum 00a513dc3da637c4c86557102b0e6098 - 10239+1 records in 10239+1 records out 10737297534 bytes (11 GB) copied, 1584.6 seconds, 6.8 MB/s 10036:/tmp# md5sum testfile bfceb91a358dfc3d09e22ad74b7ebefb testfile 10036:/tmp# How to fix: There is a 3ware KB article on this: http://www.3ware.com/KB/article.aspx?id=15243 This includes "3ware Storage Controller device driver for Linux v1.26.03.000-2.6.18." >From the driver: 1.26.03.000 - Use default DMA data direction to prevent data corruption when using SWIOTLB with 4GB+ on EM64T. Installing this fixes the problem for me. -- System Information: Debian Release: 4.0 APT prefers stable APT policy: (500, 'stable') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.18-4-vserver-k7 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) " My server installation is also suffering from this bug (datacorruption): Debian Release: 4.0 (stable) Architecture: amd64 (64bits) Kernel: 2.6.18-5-amd64 RAM: 4GB RAID Controller: 3w-8500 series Processor: Intel Xeon - EMT64 As I've stated before, the problem resides in the driver included in the kernel, so it's just a matter of replacing it as a patch in the kernel. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
