[Xen-bugs] [Bug 1227] Out of SW-IOMMU space, 3ware Raid controller/3w-xxxx module

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1227


fthain@xxxxxxxxxxxxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|INVALID                     |




------- Comment #10 from fthain@xxxxxxxxxxxxxxxxxxx  2011-10-13 05:04 -------
It seems that swiotlb=128 works fine after the x3550 was upgraded to 16 GB RAM:

# cat /proc/cmdline 
root=/dev/sda3 iommu=soft swiotlb=128 dom0_max_vcpus=1 dom0_vcpus_pin
console=tty0 console=ttyS0,38400 ipv6.disable=1
# cat /proc/version 
Linux version 2.6.32.45-core2-dom0 (root@stinky) (gcc version 4.4.4 (Gentoo
Hardened 4.4.4-r2 p1.2, pie-0.4.5) ) #1 SMP Tue Aug 30 17:59:41 EST 2011
# uptime
 22:54:37 up 28 days, 22:07,  1 user,  load average: 0.00, 0.00, 0.00

The crash in the attachment (xen-stable 2.6.32.24) was back when this machine
only had 4 GB RAM. And since reporting this bug, I've also had an IBM x346 with
4 GB RAM crash in the same way (xen-stable 2.6.32.45).

I'm re-opening this bug because the "pages, not megabytes" argument seems to
hold no water.


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