Date: Tue, 11 Jan 2022 11:26:15 +0100 From: Roger Pau =?utf-8?B?TW9ubsOp?= <roger.pau@citrix.com> To: Andriy Gapon <avg@FreeBSD.org> Cc: <xen@freebsd.org> Subject: Re: VCPUOP_send_nmi returns -38 Message-ID: <Yd1bR6mSAjL6VMYD@Air-de-Roger> In-Reply-To: <a27fb9ea-1078-fbbd-3dd9-9ce60de08c22@FreeBSD.org> References: <3f9f173b-40b9-0180-404d-52fa56dde45f@FreeBSD.org> <a27fb9ea-1078-fbbd-3dd9-9ce60de08c22@FreeBSD.org>
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On Tue, Jan 11, 2022 at 12:07:28PM +0200, Andriy Gapon wrote: > On 11/01/2022 11:50, Andriy Gapon wrote: > > > > Recently I got a report of crashes related to using procstat -k on one > > of our systems. The system runs FreeBSD 12.2 on an AWS Xen-based > > instance (can get more specifics about it later). > > The instance type is t2.large. > Here are all lines from verbose boot that mention Xen: > > XEN: Hypervisor version 4.2 detected. > Disabling MSI-X interrupt migration due to Xen hypervisor bug. > XEN: disabling emulated disks > XEN: disabling emulated nics > Hypervisor: Origin = "XenVMMXenVMM" > x2APIC available but disabled due to running under XEN Thanks. I've asked someone at AWS for comments. I guess the only way to workaround this is to switch back to using the emulated APIC. I will try to prepare a patch later. Roger.
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