-
Aruna Balakrishnaiah authored
IBM's p series machines provide persistent storage for LPARs through NVRAM. NVRAM's lnx,oops-log partition is used to log oops messages. Currently the kernel provides the contents of p-series NVRAM only as a simple stream of bytes via /dev/nvram, which must be interpreted in user space by the nvram command in the powerpc-utils package. This patch set exploits the pstore subsystem to expose oops partition in NVRAM as a separate file in /dev/pstore. For instance, Oops messages will be stored in a file named [dmesg-nvram-2]. In case pstore registration fails it will fall back to kmsg_dump mechanism. This patch will read/write the oops messages from/to this partition via pstore. Signed-off-by:
Jim Keniston <jkenisto@us.ibm.com> Signed-off-by:
Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org>
d7563c94