From: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
To: Christoph Hellwig <hch@infradead.org>, regressions@lists.linux.dev
Cc: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org
Subject: "dma-mapping: remove CONFIG_DMA_REMAP" causes AMD SME boot fail
Date: Wed, 30 Mar 2022 13:51:07 -0400 [thread overview]
Message-ID: <1648659326.eabkokyuym.none@localhost> (raw)
In-Reply-To: 1648659326.eabkokyuym.none.ref@localhost
Hi,
After a recent kernel update, booting one of my machines causes it to
hang on a black screen. Pressing Lock keys on the USB keyboard does not
turn on the indicators, and the machine does not appear on the Ethernet
network. I don't have a serial port on this machine. I didn't try
netconsole, but I suspect it won't work.
Setting mem_encrypt=0 seems to resolve the issue. Reverting f5ff79fddf0e
("dma-mapping: remove CONFIG_DMA_REMAP") also appears to resolve the
issue.
The machine in question has an AMD Ryzen 5 1600 and ASRock B450 Pro4.
Cheers,
Alex.
WARNING: multiple messages have this Message-ID (diff)
From: "Alex Xu \(Hello71\) via iommu" <iommu@lists.linux-foundation.org>
To: Christoph Hellwig <hch@infradead.org>, regressions@lists.linux.dev
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: "dma-mapping: remove CONFIG_DMA_REMAP" causes AMD SME boot fail
Date: Wed, 30 Mar 2022 13:51:07 -0400 [thread overview]
Message-ID: <1648659326.eabkokyuym.none@localhost> (raw)
In-Reply-To: 1648659326.eabkokyuym.none.ref@localhost
Hi,
After a recent kernel update, booting one of my machines causes it to
hang on a black screen. Pressing Lock keys on the USB keyboard does not
turn on the indicators, and the machine does not appear on the Ethernet
network. I don't have a serial port on this machine. I didn't try
netconsole, but I suspect it won't work.
Setting mem_encrypt=0 seems to resolve the issue. Reverting f5ff79fddf0e
("dma-mapping: remove CONFIG_DMA_REMAP") also appears to resolve the
issue.
The machine in question has an AMD Ryzen 5 1600 and ASRock B450 Pro4.
Cheers,
Alex.
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iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
next parent reply other threads:[~2022-03-30 17:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1648659326.eabkokyuym.none.ref@localhost>
2022-03-30 17:51 ` Alex Xu (Hello71) [this message]
2022-03-30 17:51 ` "dma-mapping: remove CONFIG_DMA_REMAP" causes AMD SME boot fail Alex Xu (Hello71) via iommu
2022-03-30 17:55 ` Christoph Hellwig
2022-03-30 17:55 ` Christoph Hellwig
2022-03-30 18:01 ` Christoph Hellwig
2022-03-30 18:01 ` Christoph Hellwig
2022-03-30 19:17 ` Alex Xu (Hello71)
2022-03-30 19:17 ` Alex Xu (Hello71) via iommu
2022-03-31 4:08 ` Christoph Hellwig
2022-03-31 4:08 ` Christoph Hellwig
2022-03-31 6:51 ` Thorsten Leemhuis
2022-03-31 6:51 ` Thorsten Leemhuis
2022-04-15 17:58 ` "dma-mapping: remove CONFIG_DMA_REMAP" causes AMD SME boot fail #forregzbot Thorsten Leemhuis
2022-04-15 17:58 ` Thorsten Leemhuis
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