NetBSD Problem Report #57092
From gson@gson.org Tue Nov 29 10:09:57 2022
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Date: Tue, 29 Nov 2022 12:09:49 +0200 (EET)
From: gson@gson.org (Andreas Gustafsson)
Reply-To: gson@gson.org (Andreas Gustafsson)
To: gnats-bugs@NetBSD.org
Subject: nvmm_init_vcpu failed: Cannot allocate memory
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>Number: 57092
>Category: port-amd64
>Synopsis: nvmm_init_vcpu failed: Cannot allocate memory
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: port-amd64-maintainer
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Tue Nov 29 10:10:00 +0000 2022
>Originator: Andreas Gustafsson
>Release: NetBSD 9.0_STABLE
>Organization:
>Environment:
System: NetBSD babylon5.netbsd.org 9.0_STABLE NetBSD 9.0_STABLE (BABYLON5-EPYC) #0: Wed Sep 9 05:05:23 UTC 2020
Architecture: x86_64
Machine: amd64
>Description:
On the testbed on babylon5.netbsd.org, a small percentage of the test
runs fail when attempting to start a qemu/NVMM virtual machine, with
error messages like these:
NetBSD Virtual Machine Monitor accelerator is operational
qemu-system-i386: NVMM: Failed to create a virtual processor, error=12
nvmm_init_vcpu failed: Cannot allocate memory
The full log output from the most recent such failure is here:
http://releng.netbsd.org/b5reports/i386/2022/2022.11.28.19.32.45/install.log
The host in case has plenty of memory:
babylon5.netbsd.org$ sysctl hw.physmem64
hw.physmem64 = 137300484096
but it's hard to tell after the fact exactly how much of it was in use
at the time of the failure.
Perhaps this is a case of kernel memory fragmentation similar to the
one affecting umass(4) in PR 54977.
>How-To-Repeat:
>Fix:
(Contact us)
$NetBSD: query-full-pr,v 1.47 2022/09/11 19:34:41 kim Exp $
$NetBSD: gnats_config.sh,v 1.9 2014/08/02 14:16:04 spz Exp $
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