From: Jakub Sitnicki <jakub@cloudflare.com>
To: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org, kernel-team@cloudflare.com
Subject: Re: [FYI] Input route ref count underflow since probably 6.6.22
Date: Tue, 02 Jul 2024 16:21:56 +0200 [thread overview]
Message-ID: <87wmm3euwr.fsf@cloudflare.com> (raw)
In-Reply-To: <20240701163826.76558147@kernel.org> (Jakub Kicinski's message of "Mon, 1 Jul 2024 16:38:26 -0700")
On Mon, Jul 01, 2024 at 04:38 PM -07, Jakub Kicinski wrote:
> On Fri, 28 Jun 2024 13:10:53 +0200 Jakub Sitnicki wrote:
>> We've observed an unbalanced dst_release() on an input route in v6.6.y.
>> First noticed in 6.6.22. Or at least that is how far back our logs go.
>>
>> We have just started looking into it and don't have much context yet,
>> except that:
>>
>> 1. the issue is architecture agnostic, seen both on x86_64 and arm64;
>> 2. the backtrace, we realize, doesn't point to the source of problem,
>> it's just where the ref count underflow manifests itself;
>> 3. while have out-of-tree modules, they are for the crypto subsystem.
>>
>> We will follow up as we collect more info on this, but we would
>> appreciate any hints or pointers to potential suspects, if anything
>> comes to mind.
>
> Hi! Luck would have it the same crash landed on my desk.
> Did you manage to narrow it down?
Nothing yet. Will keep you posted.
next prev parent reply other threads:[~2024-07-02 14:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-28 11:10 [FYI] Input route ref count underflow since probably 6.6.22 Jakub Sitnicki
2024-07-01 23:38 ` Jakub Kicinski
2024-07-02 14:21 ` Jakub Sitnicki [this message]
2025-01-13 12:02 ` Jakub Sitnicki
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