netdev - Re: [PATCH v3 0/2] resolve gtp possible deadlock warning

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Message-ID: <20241015105423.0f23c697@kernel.org>
Date: Tue, 15 Oct 2024 10:54:23 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Daniel Yang <danielyangkang@...il.com>
Cc: Wenjia Zhang <wenjia@...ux.ibm.com>, Jan Karcher <jaka@...ux.ibm.com>,
 "D. Wythe" <alibuda@...ux.alibaba.com>, Tony Lu <tonylu@...ux.alibaba.com>,
 Wen Gu <guwen@...ux.alibaba.com>, "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
 linux-s390@...r.kernel.org, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/2] resolve gtp possible deadlock warning

On Mon, 14 Oct 2024 00:30:36 -0700 Daniel Yang wrote:
> Fixes deadlock described in this bug:
> https://syzkaller.appspot.com/bug?extid=e953a8f3071f5c0a28fd.
> Specific crash report here:
> https://syzkaller.appspot.com/text?tag=CrashReport&x=14670e07980000.
> 
> This bug is a false positive lockdep warning since gtp and smc use
> completely different socket protocols.
> 
> Lockdep thinks that lock_sock() in smc will deadlock with gtp's
> lock_sock() acquisition.
> 
> Adding lockdep annotations on smc socket creation prevents these false
> positives.

This posting looks corrupted, please fix and repost, if it's 
not accidental.