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Date:   Thu, 5 May 2022 08:22:56 -0700
From:   Stephen Hemminger <stephen@networkplumber.org>
To:     Gonsolo <gonsolo@gmail.com>
Cc:     Felix Fietkau <nbd@nbd.name>,
        Lorenzo Bianconi <lorenzo@kernel.org>,
        Ryder Lee <ryder.lee@mediatek.com>,
        Shayne Chen <shayne.chen@mediatek.com>,
        Sean Wang <sean.wang@mediatek.com>,
        Kalle Valo <kvalo@kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: Suspend/resume error with AWUS036ACM
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On Thu, 5 May 2022 08:29:52 +0200
Gonsolo <gonsolo@gmail.com> wrote:

> Hi all.
> 
> After a resume I get the following error:
> 
>  +0,000007] UBSAN: invalid-load in
> /build/linux-lowlatency-fSdu7c/linux-lowlatency-5.15.0/net/mac80211/status.c:1164:21
> [  +0,000004] load of value 255 is not a valid value for type '_Bool'
> [  +0,000004] CPU: 22 PID: 387 Comm: kworker/u256:5 Tainted: P
>   OE     5.15.0-27-lowlatency #28-Ubuntu
> [  +0,000004] Hardware name: To Be Filled By O.E.M. To Be Filled By
> O.E.M./X399 Phantom Gaming 6, BIOS P1.31 01/14/2021
> [  +0,000003] Workqueue: phy0 mt76x02_mac_work [mt76x02_lib]
> [  +0,000014] Call Trace:
> [  +0,000003]  <TASK>
> [  +0,000003]  show_stack+0x52/0x58
> [  +0,000006]  dump_stack_lvl+0x4a/0x5f
> [  +0,000007]  dump_stack+0x10/0x12
> [  +0,000003]  ubsan_epilogue+0x9/0x45
> [  +0,000002]  __ubsan_handle_load_invalid_value.cold+0x44/0x49
> [  +0,000004]  ieee80211_tx_status_ext.cold+0x4e/0x5f [mac80211]
> [  +0,000068]  mt76_tx_status_unlock+0x111/0x160 [mt76]
> [  +0,000010]  mt76_tx_status_check+0x68/0x90 [mt76]
> [  +0,000009]  mt76x02_mac_work+0x14b/0x240 [mt76x02_lib]
> [  +0,000008]  process_one_work+0x222/0x3f0
> [  +0,000006]  worker_thread+0x50/0x3f0
> [  +0,000004]  ? process_one_work+0x3f0/0x3f0
> [  +0,000004]  kthread+0x13b/0x160
> [  +0,000003]  ? set_kthread_struct+0x50/0x50
> [  +0,000004]  ret_from_fork+0x22/0x30
> [  +0,000006]  </TASK>
> [  +0,000001] ================================================================================
> 
> This is a stock Ubuntu Jammy lowlatency kernel (with Nvidia drivers).

Contact Ubuntu.  The rule for upstream is if you load out of tree drivers
than that kernel is unsupported.