On 5/1/20 5:40 AM, John Ogness wrote:
> Hello,
>
> Here is a v2 for the first series to rework the printk subsystem. The
> v1 and history are here [0]. This first series only replaces the
> existing ringbuffer implementation. No locking is removed. No
> semantics/behavior of printk are changed.
>
> The VMCOREINFO is updated. RFC patches for the external tools
> crash(8) [1] and makedumpfile(8) [2] have been submitted that allow
> the new ringbuffer to be correctly read.
>
> This series is in line with the agreements [3] made at the meeting
> during LPC2019 in Lisbon, with 1 exception: support for dictionaries
> will not be discontinued [4]. Dictionaries are stored in a separate
> buffer so that they cannot interfere with the human-readable buffer.
>
Hey John,
I tested this on two 128-cpu ppc64le power8 boxes, and a 64 core x86_64 box
using your prb-test testsuite with the latest upstream kernel. The tests ran
successfully for ~16 hours without any problems.
P.
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