Xen devel - Jul 2005 - compiling dom0 Kernel with LSI MegaRAID Driver failed

Hello,

we try to compile a dom0 kernel with LSI Logic MegaRAID Driver, but 
compiling breaks with following output:

...
  LD      .tmp_vmlinux1
ld: BFD 2.15 assertion fail ../../bfd/linker.c:619
arch/xen/x86_64/kernel/built-in.o(.text+0x9101): In function
`dma_unmap_sg'':
: undefined reference to `dma_unmap_single''
drivers/built-in.o(.text+0x5945e): In function `cciss_ioctl'':
: undefined reference to `dma_map_single''
drivers/built-in.o(.text+0x59551): In function `cciss_ioctl'':
: undefined reference to `dma_unmap_single''
...
more undefined refernces
...
drivers/built-in.o(.text+0x1285c4): In function `mptscsih_AddSGE'':
: undefined reference to `dma_map_single''
drivers/built-in.o(.text+0x128b93): In function `mptscsih_io_done'':
: undefined reference to `dma_unmap_single''
drivers/built-in.o(.text+0x128ca3): In function 
`mptscsih_flush_running_cmds'':
: undefined reference to `dma_unmap_single''
drivers/built-in.o(.text+0x129e8a): In function `mptscsih_abort'':
: undefined reference to `dma_unmap_single''
make: *** [.tmp_vmlinux1] Error 1

The attachment contains the complete error messages.

The only options that were changed in the kernel config compared to a 
''make kernels'' dom0 config:

Device Drivers --->
    SCSI device support --->
       SCSI low-level drivers --->
          [*] LSI Logic New Generation RAID Device Drivers
             <*> LSI Logic Managemen Module   # changed from off to on
                <*> LSI Logic MegaRAID Driver   # changed from off to on

The system on which we compile is a Dell Power Edge 1850 with a Debian 
amd64 and 2.6.12''er kernel. The xen-unstable source tarball of  Jul 21
is used.

I reported a similar problem while trying to compile smp support into 
the dom0 kernel: 
http://lists.xensource.com/archives/html/xen-users/2005-07/msg00114.html

Xen-unstable source tarballs with 2.6.11''er kernel don''t make
problems
while compiling LSI MegaRAID Driver into the kernel, but there are those 
problems with smp support.

On our machine there is another Problem with 2.6.11''er dom0 or/and domU
kernels:  if in domU a network interface is brought up, the dom0 kernel 
crashes after a few seconds with :
  ...
<0>Kernel panic - not syncing: Aiee, killing interrupt handler!

If needed I can provide a full error message of this behavior.

Perhaps this network problem is solved in the latest versions but we 
can''t give it a try because unfortunately we need the LSI MegaRAID 
Driver on our machine.

Greetings,

Florian Gödden



_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

I figured out what the problem is, at least that with dma_*:

A ''make kernels'' in the root directory of  the xen source
builds the
dom0 kernel with this patch applied:

Node ID c5db6fd54e36fb4475257172c3f1c8fa77b54745
Fix dma_map_single to work correctly with multi-page buffers

A

''make kclean''
in the source root directory, or

cd linux-2.6.12-xen0
make ARCH=xen clean

deletes the patched files pci-dma.c and pci-nommu.c from 
/arch/xen/x86-64/kernel.

After that, a new compilation replaces both deleted files with unpatched 
versions which do not work anymore.

Copy pci-dma.c and pci-nommu.c manually from the xen-sparse tree in the 
dom0 tree after a clean solves the problem.

Florian Gödden

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel