linux-kernel - [bug report, 6.1.52] /proc/loadavg shows incorrect values

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Message-ID: <CAN2Y7hwHWFpVRL3ZTSmKn2CGtixDBdszxofE4DSUx0rAOeK41g@mail.gmail.com>
Date: Tue, 18 Mar 2025 21:54:17 +0800
From: ying chen <yc1082463@...il.com>
To: "mingo@...hat.com" <mingo@...hat.com>, peterz@...radead.org, juri.lelli@...hat.com, 
	vincent.guittot@...aro.org, linux-kernel@...r.kernel.org
Subject: [bug report, 6.1.52] /proc/loadavg shows incorrect values

Hello all,

In our production environment, "cat /proc/loadavg" shows incorrect
huge values. The kernel version is 6.1.52. So far, at least four such
cases have been found. It seems to be a kernel bug.

~$ cat /proc/loadavg
4294967392.49 4294967395.80 4294967395.83 87/16100 2341720

top output is below:

top - 21:12:13 up 191 days, 20:50,  1 user,  load average:
4294967397.45, 4294967396.82, 4294967396.15
Tasks: 2388 total,   3 running, 1208 sleeping,   0 stopped,   0 zombie
%Cpu(s): 27.9 us,  6.7 sy,  0.0 ni, 57.3 id,  0.5 wa,  1.7 hi,  5.8 si,  0.0 st
KiB Mem : 99966995+total, 56704217+free, 22655678+used, 20607096+buff/cache
KiB Swap:        0 total,        0 free,        0 used. 68817177+avail Mem