On Sat, 2010-11-13 at 20:15 -0800, Jim Keniston wrote:
> This patch series enables p Series systems to capture oops and panic
> reports from the printk buffer into NVRAM, where they can be examined
> after reboot using the nvram command.
>
Here's a patch to the nvram command to add --unzip and --
Instead of always creating a huge (268K) deflate_workspace with the
maximum compression parameters (windowBits=15, memLevel=8), allow the
caller to obtain a smaller workspace (24K in our case) by specifying
smaller parameter values -- via zlib_deflate_workspacesize2(). In our
case, a small workspac
Exploit zlib_deflate_workspacesize2() to create a much smaller
zlib_deflate workspace when capturing oops/panic reports to NVRAM.
Signed-off-by: Jim Keniston
---
arch/powerpc/platforms/pseries/nvram.c | 11 +++
1 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/arch/powerp
Capture more than twice as much text from the printk buffer, and
compress it to fit it in the ibm,oops-log NVRAM partition.
Signed-off-by: Jim Keniston
---
arch/powerpc/include/asm/rtas.h|6 +
arch/powerpc/platforms/pseries/nvram.c | 195
2 files ch
Adapt the functions used to create and write to the RTAS-log partition
to work with any OS-type partition.
Signed-off-by: Jim Keniston
---
arch/powerpc/include/asm/nvram.h |3 -
arch/powerpc/kernel/nvram_64.c | 31 ++-
arch/powerpc/platforms/pseries/nvram.c | 138 ++
If we don't have room to capture the entire oops report, capture as much
as possible, starting 150 chars before the "Oops:" line.
Signed-off-by: Jim Keniston
---
arch/powerpc/platforms/pseries/nvram.c | 91
1 files changed, 91 insertions(+), 0 deletions(-)
di
This patch series enables p Series systems to capture oops and panic
reports from the printk buffer into NVRAM, where they can be examined
after reboot using the nvram command.
Patches 1-2 implement the basic feature, and patch 4 adds compression,
so we can capture more of the printk buffer. Patc
Create the ibm,oops-log NVRAM partition, and capture the end of the printk
buffer in it when there's an oops or panic. If we can't create the
ibm,oops-log partition, capture the oops/panic report in ibm,rtas-log.
Signed-off-by: Jim Keniston
---
arch/powerpc/platforms/pseries/nvram.c | 89 +++
On Thu, Nov 11, 2010 at 5:56 AM, Kumar Gala wrote:
> Is there any reason we shouldn't set DMA_BIT_MASK(64) since the DMA block
> programming model allows the address to be 64-bits?
Can you explain that? The DMA registers only have room for 36 bits
for the physical address.
--
Timur Tabi
Linu
