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From: Florian Westphal <fw@strlen.de>
To: F6BVP <f6bvp@free.fr>
Cc: Eric Dumazet <edumazet@google.com>,
	Dan Carpenter <dan.carpenter@linaro.org>,
	linux-hams@vger.kernel.org, netdev <netdev@vger.kernel.org>,
	Dan Cross <crossd@gmail.com>, David Ranch <dranch@trinnet.net>,
	Folkert van Heusden <folkert@vanheusden.com>
Subject: Re: [ROSE] [AX25] 6.15.10 long term stable kernel oops
Date: Wed, 27 Aug 2025 19:30:33 +0200	[thread overview]
Message-ID: <aK9AuSkhr37VnRQS@strlen.de> (raw)
In-Reply-To: <4542b595-2398-4219-b643-4eda70a487f3@free.fr>

F6BVP <f6bvp@free.fr> wrote:
> Here I am. Next step is probably to discover why the call to 
> receive_buf() fails when bytes are not small and tty_ldisc_deref() is 
> acting after flush_to_ldisc probably leading to an error. What value is 
> wrong ? ld->tty , p, f ?

Did you enable CONFIG_KASAN?

Also, since you seem to be able to reproduce this easily, did you
try a 'git bisect' to identify the breaking change?

That would allow to CC the author of that change.

> 4,19346,153786988,-;Hardware name: To be filled by O.E.M. To be filled by O.E.M./CK3, BIOS 5.011 09/16/2020
> 4,19347,153786990,-;Workqueue: events_unbound flush_to_ldisc
> 4,19348,153786998,-;Here I am: tty_ldisc_deref:283 !tty
> 4,19349,153787003,-;Here I am: tty_ldisc_deref:283 !tty
> 4,19350,153787005,-;RIP: 0010:__netif_receive_skb_core.constprop.0+0xfe5/0x12d0
> 4,19398,153787265,-; __netif_receive_skb_one_core+0x3d/0xa0

as Eric noted, you need to pipe this through

scripts/decode_stacktrace.sh so this gets translated to line numbers.

  reply	other threads:[~2025-08-27 17:30 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             ` [ROSE] [AX25] 6.15.10 long term stable kernel oops F6BVP
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 [this message]
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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