linux-kernel - Re: [PATCH v3 31/35] lib: add memory allocations report in show

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Date: Thu, 15 Feb 2024 18:56:23 -0500
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Vlastimil Babka <vbabka@...e.cz>, 
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Subject: Re: [PATCH v3 31/35] lib: add memory allocations report in show_mem()

On Thu, Feb 15, 2024 at 06:27:29PM -0500, Steven Rostedt wrote:
> All this, and we are still worried about 4k for useful debugging :-/

Every additional 4k still needs justification. And whether we burn a
reserve on this will have no observable effect on user output in
remotely normal situations; if this allocation ever fails, we've already
been in an OOM situation for awhile and we've already printed out this
report many times, with less memory pressure where the allocation would
have succeeded.