diff options
| author | Mahesh Salgaonkar <[email protected]> | 2015-07-31 21:24:38 +0530 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2015-08-06 15:10:18 +1000 |
| commit | e784b6499d9cba83b7f3f032b7ee01f7ca96ad91 (patch) | |
| tree | 763f91d5dceef667f79a4f3013a65a278df413b1 /scripts/gdb/linux/dmesg.py | |
| parent | 1852ae276ba6d5d481c3fb193054ebb67068be5c (diff) | |
powerpc/powernv: Invoke opal_cec_reboot2() on unrecoverable machine check errors.
On non-recoverable MCE errors in kernel space, Linux kernel panics
and system reboots. On BMC based system opal-prd runs as a daemon
in the host. Hence, kernel crash may prevent opal-prd to detect and
analyze this MCE error. This may land us in a situation where the faulty
memory never gets de-configured and Linux would keep hitting same MCE error
again and again. If this happens in early stage of kernel initialization,
then Linux will keep crashing and rebooting in a loop.
This patch fixes this issue by invoking new opal_cec_reboot2() call with
reboot type OPAL_REBOOT_PLATFORM_ERROR to inform BMC/OCC about this
error, so that BMC can collect relevant data for error analysis and
decide what component to de-configure before rebooting.
This patch is dependent on OPAL patchset posted on skiboot mailing list
at https://lists.ozlabs.org/pipermail/skiboot/2015-July/001771.html that
introduces opal_cec_reboot2() opal call.
Signed-off-by: Mahesh Salgaonkar <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'scripts/gdb/linux/dmesg.py')
0 files changed, 0 insertions, 0 deletions