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List:       linux-scsi
Subject:    Re: [PATCH v5] ufs: core: wlun send SSU timeout recovery
From:       Stanley Chu <chu.stanley () gmail ! com>
Date:       2023-09-29 14:14:38
Message-ID: CAGaU9a_0Xu8X4ouRbygquEXhLWb_4KvKQAnUF+XTWVE0MdhpJA () mail ! gmail ! com
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On Wed, Sep 27, 2023 at 1:43 PM <peter.wang@mediatek.com> wrote:
>
> From: Peter Wang <peter.wang@mediatek.com>
>
> When runtime pm send SSU times out, the SCSI core invokes
> eh_host_reset_handler, which hooks function ufshcd_eh_host_reset_handler
> schedule eh_work and stuck at wait flush_work(&hba->eh_work).
> However, ufshcd_err_handler hangs in wait rpm resume.
> Do link recovery only in this case.
> Below is IO hang stack dump in kernel-6.1

Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
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