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Message-ID: <a4a88807-8f52-ef9a-c58e-0ff454da5ade@acm.org>
Date:   Sun, 31 Oct 2021 16:52:39 -0700
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Subject: Re: kernel 5.15 does not boot with 3ware card (never had this issue
 <= 5.14) - scsi 0:0:0:0: WARNING: (0x06:0x002C) : Command (0x12) timed out,
 resetting card
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To:     Justin Piszcz <jpiszcz@lucidpixels.com>,
        linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org
References: <006a01d7cead$b9262d70$2b728850$@lucidpixels.com>
From:   Bart Van Assche <bvanassche@acm.org>
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On 10/31/21 16:19, Justin Piszcz wrote:
> Diff between 5.14 and 5.15 .config files-- could it be something to do with
> CONFIG_IOMMU_DEFAULT_DMA_LAZY=y?

That's hard to say. Is CONFIG_MAGIC_SYSRQ enabled? If not, please enable 
it and hit Alt-Printscreen-t (dump task list; see also 
Documentation/admin-guide/sysrq.rst) and share the contents of the 
kernel log. If that would not be convenient, please try to bisect this 
issue.

Thanks,

Bart.