Russell Currey <rus...@russell.cc> writes: > On BMC machines, console output is controlled by the OPAL firmware and is > only flushed when its pollers are called. When the kernel is in a panic > state, it no longer calls these pollers and thus console output does not > completely flush, causing some output from the panic to be lost. > > This patch adds a new kmsg_dumper which gets called at panic time to ensure > panic output is not lost. It accomplishes this by calling OPAL_CONSOLE_FLUSH > in the OPAL API, and if that is not available, the pollers are called enough > times to (hopefully) completely flush the buffer.
You may want to add to commit message that this depends on: https://patchwork.ozlabs.org/patch/547379/ (which I'm about to go review) Considering this does address an actual bug, should this go to stable@ ? (Same question for the skiboot patch) _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
