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Date:   Fri, 14 Jan 2022 15:14:38 +1100
From:   Herbert Xu <>
To:     Corentin Labbe <>
Subject: Re: crypto: BUG: spinlock recursion when doing iperf over ipsec with
 crypto hardware device

On Tue, Jan 11, 2022 at 10:47:12AM +0100, Corentin Labbe wrote:
> [   44.646050] [<c0100afc>] (__irq_svc) from [<c080b9d4>] (xfrm_replay_advance+0x11c/0x3dc)
> [   44.654143] [<c080b9d4>] (xfrm_replay_advance) from [<c0809388>] (xfrm_input+0x4d0/0x1304)
> [   44.662408] [<c0809388>] (xfrm_input) from [<c03a3d88>] (crypto_finalize_request+0x5c/0xc4)
> [   44.670766] [<c03a3d88>] (crypto_finalize_request) from [<c06a0888>] (sun8i_ce_cipher_run+0x34/0x3c)
> [   44.679900] [<c06a0888>] (sun8i_ce_cipher_run) from [<c03a4264>] (crypto_pump_work+0x1a8/0x330)

So did sun8i_ce_cipher_run ensure that BH is disabled before
invoking xfrm_input? If not then this explains the dead-lock.

Email: Herbert Xu <>
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