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From: F6BVP <f6bvp@free.fr>
To: linux-hams@vger.kernel.org, netdev <netdev@vger.kernel.org>
Cc: Dan Cross <crossd@gmail.com>,
	Folkert van Heusden <folkert@vanheusden.com>,
	David Ranch <dranch@trinnet.net>
Subject: Re: [ROSE] [AX25] 6.15.10 long term stable kernel oops
Date: Thu, 21 Aug 2025 13:28:08 +0200	[thread overview]
Message-ID: <90efee88-b9dc-4f87-86f2-6ab60701c39f@free.fr> (raw)
In-Reply-To: <4e4c9952-e445-41af-8942-e2f1c24a0586@free.fr>

[-- Attachment #1: Type: text/plain, Size: 1001 bytes --]

Hi,

I confirm that linux-6.14 branch up to linux-6.14.11 is fine while ALL 
following kernels Oops with kernel panics when using mkiss driver for AX25.

I did not find how to see changes from 6.14.11 to 6.15.1 that Oops !

Having read that 6.15.1 should not be used and be replaced by 6.15.2, I 
maked and installed it and found something more interesting during 
kernel panics.

Actually a new event is triggered by mkiss. As shown in attached picture 
new kind of message says :

Workqueue: event_unbound flush_to_ldisc
RIP: 0010:__netif_receive_skb_core.constprop.0+0x1051/0x1330

I grepped kernel net files and found netif_receive_skb_core in /core/dev.c

Could it be that the bug is inside this function when receiving some 
kind of unexpected buffer from mkiss ?

Not being a software engineer (I was actually MD before retiring at 75 
from université Pitie-Salpetriere associate professor and hospital...), 
I need some help to perform further investigations.

Bernard,
hamradio f6bvp /ai7bg

[-- Attachment #2: netif_receive_6.15.2-1.jpg --]
[-- Type: image/jpeg, Size: 173845 bytes --]

  parent reply	other threads:[~2025-08-21 11:28 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <11c5701d-4bf9-4661-ad8a-06690bbe1c1c@free.fr>
     [not found] ` <fff0b3eb-ea42-4475-970d-30622dc25dca@free.fr>
2025-08-16 18:45   ` [ROSE] [AX25] 6.15.10 long term stable kernel oops Bernard Pidoux
2025-08-18 10:00     ` Bernard Pidoux
2025-08-18 10:04       ` Folkert van Heusden
2025-08-18 14:19         ` F6BVP
2025-08-18 16:30       ` Dan Cross
2025-08-18 18:28         ` F6BVP
2025-08-18 22:11           ` Dan Cross
2025-08-18 22:31           ` F6BVP
2025-08-20  8:50             ` F6BVP
2025-08-20 19:33               ` kworker/u16 Not tainted F6BVP
2025-08-21 11:28             ` F6BVP [this message]
2025-08-21 17:49               ` F6BVP
2025-08-21 22:39               ` [ROSE] [AX25] 6.15.10 long term stable kernel oops F6BVP
2025-08-22  3:10                 ` Folkert van Heusden
2025-08-24 14:04                   ` F6BVP
2025-08-25 12:40                     ` Dan Carpenter
2025-08-26 13:31                       ` F6BVP
2025-08-26 13:36                         ` Eric Dumazet
2025-08-27 14:16                           ` F6BVP
2025-08-27 17:30                             ` Florian Westphal
2025-08-28 16:39                               ` F6BVP
2025-08-30 23:37                                 ` F6BVP
2025-09-01 12:04                                   ` Eric Dumazet
2025-09-01 12:05                                     ` Eric Dumazet
     [not found]                                       ` <cd0461e0-8136-4f90-df7b-64f1e43e78d4@trinnet.net>
2025-09-01 15:59                                         ` F6BVP
2025-09-01 16:03                                           ` Eric Dumazet
2025-09-01 19:10                                             ` David Ranch
2025-09-01 19:16                                               ` Eric Dumazet
2025-09-02  7:44                                             ` F6BVP
2025-09-02  7:55                                               ` Eric Dumazet
2025-09-03  9:51                                             ` [BUG] [ROSE] slab-use-after-free in lock_timer_base Bernard Pidoux
2025-09-03 10:01                                               ` Eric Dumazet
2025-09-03 10:11                                                 ` F6BVP
2025-09-03 11:07                                                   ` Takamitsu Iwai
2025-09-01 19:04                                       ` [ROSE] [AX25] 6.15.10 long term stable kernel oops David Ranch
2025-09-02  7:54                                     ` F6BVP
2025-08-19 21:17           ` [OT] " Miroslav Skoric
2025-08-16 17:02 Bernard Pidoux
2025-08-16 17:35 ` David Ranch

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