Date: Sun, 17 Jan 2021 01:35:55 -0800 From: Michael Dexter <editor@callfortesting.org> To: Peter Grehan <grehan@freebsd.org> Cc: "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org> Subject: Re: UEFI -l com1, stdio floods console/Windows Server SAC with "rdmsr to register 0x198 on vcpu..." Message-ID: <f3abcb37-5a51-b9a1-ede6-ee5df55613c8@callfortesting.org> In-Reply-To: <1dde1e58-3756-a9fd-f44d-6755f7788b1f@freebsd.org> References: <f6ab448a-673e-3d61-433c-83cfa7c5e58c@callfortesting.org> <1dde1e58-3756-a9fd-f44d-6755f7788b1f@freebsd.org>
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On 1/17/21 1:21 AM, Peter Grehan wrote: >> Can the "rdmsr to register 0x198 on vcpu..." and similar messages on a >> -l com1,stdio console when using UEFI firmware be redirected or >> suppressed? The -w flag does not silence them, assuming, perhaps >> incorrectly, they are unsupported MSRs. >> >> If redirected, should these be logged? > > Please file a PR (https://www.freebsd.org/support/bugreports.html) > > A simple workaround is to use an nmdm or pty device for com1 output. PR filed and indeed! https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252768 All the best, Michael
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