Messages in this thread | | | Subject | 64-bit AMD panic | Date | Mon, 3 Mar 2008 12:06:09 -0500 | From | "linux-os (Dick Johnson)" <> |
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Hello all,
We have 64-bit production machines that use the kernel shipped with a RedHat distribution, linux-2.6.11-1.1369_FC4smp. There have been no problems until we received recent hardware. With the latest hardware, which the vendor claims hasn't changed, the machines panic when either a USB mouse or USB keyboard are plugged in.
Machine:
Supermicro H8DME-2 Two quad-Core AMD Opteron CPUs 64GB DDR2 400 SDRAM 6 SATA2 3.0Gb/s HD Support 2 64-bit 133/100 MHz PCI-X 2 64=bit 100MHz PCI-X ATI ES1000 Graphics
Chipset nVida MCP55 Pro NEC uPD720400 USB FUCI, uses ohci_hcd driver.
When mouse or keyboard is inserted, I get a panic with: "map_single bounce buffer is not DMA'ble."
This comes from: linux-2.6.11-prep/arch/ia64/lib/swiotlb.c, line 440. I added 64-bit long print hex to the panic statement so I could display the address it doesn't like.
The address it doesn't like is: 0x000000022a0aa000
Does anybody have a clue what might be the matter and how to fix it?
Cheers, Dick Johnson Penguin : Linux version 2.6.22.1 on an i686 machine (5588.28 BogoMips). My book : http://www.AbominableFirebug.com/ _
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