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PR/55737 CVS commit: src/sys/dev/acpi



The following reply was made to PR port-arm/55737; it has been noted by GNATS.

From: "Nick Hudson" <skrll%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/55737 CVS commit: src/sys/dev/acpi
Date: Sat, 24 Oct 2020 07:21:01 +0000

 Module Name:	src
 Committed By:	skrll
 Date:		Sat Oct 24 07:21:01 UTC 2020
 
 Modified Files:
 	src/sys/dev/acpi: virtio_acpi.c
 
 Log Message:
 Use the 64bit DMA tag if its valid.
 
 There appears to be a bug in virtio / ld_virtio and bounce buffers that
 was triggered when the bus_dmatag_subregion code on arm64 was fixed to
 correctly create a new tag for the 32bit tag vs the system (64bit) tag.
 This change avoids the bug.
 
 PR/55737: Apparent bug in evbarm64 DMA code causes filesystem corruption
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.2 -r1.3 src/sys/dev/acpi/virtio_acpi.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.
 


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