PR/59618 CVS commit: src/sys/dev/pci

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

The following reply was made to PR kern/59618; it has been noted by GNATS.

From: "Taylor R Campbell" <riastradh%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/59618 CVS commit: src/sys/dev/pci
Date: Sat, 6 Sep 2025 02:56:40 +0000

 Module Name:	src
 Committed By:	riastradh
 Date:		Sat Sep  6 02:56:40 UTC 2025
 
 Modified Files:
 	src/sys/dev/pci: pvscsi.c
 
 Log Message:
 pvscsi(4): Use bus_dmamap_sync, not membar_*, for DMA.
 
 membar_* may be a noop if we're booting on a single _virtual_ CPU,
 but the barriers are still needed in case the host behind pvscsi(4)
 is running on another _physical_ CPU.
 
 Prompted by (and related to but not the same issue as):
 
 PR kern/59618: occasional virtio block device lock ups/hangs
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.3 -r1.4 src/sys/dev/pci/pvscsi.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.