Re: [PATCH net v2 1/2] net: ethernet: oa_tc6: Protect skb pointer used by two different kernel instances
From: Jakub Kicinski <kuba@kernel.org>
Date: 2026-06-30 02:15:54
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On Fri, 26 Jun 2026 08:35:18 -0700 Selvamani Rajagopal via B4 Relay wrote:
Threaded IRQ uses waiting_tx_skb. Transmit path also uses this pointer without any mutual exclusion protection. As a result, it might leak skb buffer, particularly threaded IRQ runs in the middle of tranmsmit path, near skb_linearize.
Can you say more ? only xmit sets waiting_tx_skb, the IRQ clears it. So why is IRQ racing with xmit leading to drops?