linux-kernel - few dozen pollfress.t segfaults messages in system log

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Date:   Wed, 9 Aug 2023 21:45:57 +0200
From:   Toralf Förster <toralf.foerster@....de>
To:     Linux Kernel <linux-kernel@...r.kernel.org>
Subject: few dozen pollfress.t segfaults messages in system log

I got a bunch of

$ grep pollfree messages
Aug  9 02:10:14 mr-fox kernel: pollfree.t[18582]: segfault at 10b ip
0000563c9619b373 sp 00007f69511a2eb0 error 4 in
pollfree.t[563c9619a000+3000] likely on CPU 14 (core 14, socket 0)
Aug  9 02:10:14 mr-fox kernel: pollfree.t[18594]: segfault at 10b ip
0000563c9619b373 sp 00007f69511a2eb0 error 4 in
pollfree.t[563c9619a000+3000] likely on CPU 4 (core 4, socket 0)
Aug  9 02:10:14 mr-fox kernel: pollfree.t[18597]: segfault at 10b ip
0000563c9619b373 sp 00007f69511a2eb0 error 4 in
pollfree.t[563c9619a000+3000] likely on CPU 11 (core 11, socket 0)
Aug  9 02:10:14 mr-fox kernel: pollfree.t[18601]: segfault at 10b ip
0000563c9619b373 sp 00007f69511a2eb0 error 4 in
pollfree.t[563c9619a000+3000] likely on CPU 26 (core 10, socket 0)

last night with kernel 6.4.9 at a stable hardened Gentoo Linux:

Linux p14s 6.1.44 #34 SMP Tue Aug  8 21:43:00 CEST 2023 x86_64 AMD Ryzen
7 PRO 6850U with Radeon Graphics AuthenticAMD GNU/Linux

I do wonder if those messages are related to the host kernel or if they
are coming from a buggy app within one of the images of the build bot I
do run at that machine ?

--
Toralf