netdev - Re: [ROSE] [AX25] 6.15.10 long term stable kernel oops

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Message-ID: <847a7cd7-c17c-4aa7-824d-22768ff9775d@free.fr>
Date: Wed, 20 Aug 2025 10:50:16 +0200
From: F6BVP <f6bvp@...e.fr>
To: Dan Cross <crossd@...il.com>, Bernard Pidoux <bernard.pidoux@...e.fr>
Cc: David Ranch <dranch@...nnet.net>, linux-hams@...r.kernel.org,
 netdev <netdev@...r.kernel.org>
Subject: Re: [ROSE] [AX25] 6.15.10 long term stable kernel oops

Hi All,

As linux-6.15.1 came with the same Oops kernel panic I jummped into 6.14 
branch resulting in no issue up to 6.14.4

I observed that kworker/u16 was always cited in the panic report.

Grep -r kworker/u16 found the following report in

~.drivers/gpu/drm/ci/xfails/msm-apq8096-skips.txt

I am not sure if it is relevant to our present problem.
.....................

# Whole machine hangs
kms_cursor_legacy@...-pipes-torture-move

# Skip driver specific tests
^amdgpu.*
nouveau_.*
^panfrost.*
^v3d.*
^vc4.*
^vmwgfx*

# Skip intel specific tests
gem_.*
i915_.*
tools_test.*

# Currently fails and causes coverage loss for other tests
# since core_getversion also fails.
core_hotunplug.*

# gpu fault
# [IGT] msm_mapping: executing
# [IGT] msm_mapping: starting subtest shadow
# *** gpu fault: ttbr0=00000001030ea000 iova=0000000001074000 dir=WRITE 
type=PERMISSION source=1f030000 (0,0,0,0)
# msm_mdp 901000.display-controller: RBBM | ME master split | 
status=0x701000B0
# watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [kworker/u16:3:46]
msm/msm_mapping@...dow
.........................


Bernard