Date: Fri, 14 May 2021 09:06:17 +0000 From: Greg V <greg@unrelenting.technology> To: Mark Millard <marklmi@yahoo.com>, Mark Millard via freebsd-current <freebsd-current@freebsd.org>, freebsd-arm <freebsd-arm@freebsd.org>, freebsd-current <freebsd-current@freebsd.org> Subject: Re: FYI for aarch64 main [14] running a mid March version: I ended up with [usb{usbus2}] stuck at (near) 100% cpu Message-ID: <35D1B891-3DBC-4B47-9A15-DE8E26CC2CDB@unrelenting.technology> In-Reply-To: <F8475C15-FBE4-40D3-B3D3-1F7E5A671D86@yahoo.com> References: <F8475C15-FBE4-40D3-B3D3-1F7E5A671D86.ref@yahoo.com> <F8475C15-FBE4-40D3-B3D3-1F7E5A671D86@yahoo.com>
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On May 14, 2021 5:59:48 AM UTC, Mark Millard via freebsd-current <freebsd-= current@freebsd=2Eorg> wrote: >The [usb{usbus2}] process eventually got stuck-busy, no >more I/O: > > >The system was a MACCHIATObin Double Shot=2E I've noticed USB issues on the mcbin too=2E In my experience uaudio was the most likely thing to freeze: sometimes whe= n playing audio the whole USB stack would hang, IIRC only unplugging and re= connecting the hub would let USB I/O continue=2E Looks like the XHCI hardware might not be fully stable here?? but I do won= der if we could possibly lack some recovery mechanisms for this situation t= hat other OSes have=2E
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