Date: Fri, 6 Dec 2019 14:57:42 -0800 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Alexander Motin <mav@freebsd.org> Cc: Warner Losh <imp@bsdimp.com>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: CAM breaks USB [was Re: USB causing boot to hang] Message-ID: <20191206225742.GB949@troutmask.apl.washington.edu> In-Reply-To: <284e1dd9-23f5-ae48-6e18-fa523f7dc1a3@FreeBSD.org> References: <20191206202316.GA1053@troutmask.apl.washington.edu> <20191206223144.GA3224@troutmask.apl.washington.edu> <CANCZdfrvTmb0xfQ_A6vLdzgNziSHSsD5TBiC1DCnriTaWcr-nw@mail.gmail.com> <284e1dd9-23f5-ae48-6e18-fa523f7dc1a3@FreeBSD.org>
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On Fri, Dec 06, 2019 at 05:44:55PM -0500, Alexander Motin wrote: > > Yes, I made the change, and it was supposed to improve USB > inter-operation, but after reading this email I still have no clue what > could be wrong, so ideas welcome. Sorry about the initial vagueness. It took a couple of hours to bisect the problem. > Steve, do you have some devices on that USB, especially umass(4)? Have > you tried to remove them? On a good boot, this is what is reported by dmesg. There is a logitech USB mouse receiver and a Seagate USB hard drive. It does not matter if the hard drive is plugged in or not. % dmesg | grep -E ^u usbus0 on xhci0 usbus1 on ohci0 usbus2: EHCI version 1.0 usbus2 on ehci0 usbus3 on ohci1 usbus4: EHCI version 1.0 usbus4 on ehci1 usbus5 on ohci2 usbus6 on ohci3 usbus7: EHCI version 1.0 usbus7 on ehci2 usbus0: 5.0Gbps Super Speed USB v3.0 usbus1: 12Mbps Full Speed USB v1.0 usbus2: 480Mbps High Speed USB v2.0 usbus3: 12Mbps Full Speed USB v1.0 usbus4: 480Mbps High Speed USB v2.0 usbus5: 12Mbps Full Speed USB v1.0 usbus6: 12Mbps Full Speed USB v1.0 usbus7: 480Mbps High Speed USB v2.0 ugen7.1: <ATI EHCI root HUB> at usbus7 uhub0 on usbus7 uhub0: <ATI EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus7 ugen6.1: <ATI OHCI root HUB> at usbus6 uhub1 on usbus6 uhub1: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus6 ugen5.1: <ATI OHCI root HUB> at usbus5 uhub2 on usbus5 uhub2: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus5 ugen4.1: <ATI EHCI root HUB> at usbus4 uhub3 on usbus4 uhub3: <ATI EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus4 ugen3.1: <ATI OHCI root HUB> at usbus3 uhub4 on usbus3 uhub4: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus3 ugen2.1: <ATI EHCI root HUB> at usbus2 uhub5 on usbus2 uhub5: <ATI EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus2 ugen1.1: <ATI OHCI root HUB> at usbus1 uhub6 on usbus1 uhub6: <ATI OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1 ugen0.1: <0x1106 XHCI root HUB> at usbus0 uhub7 on usbus0 uhub7: <0x1106 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0 uhub2: 2 ports with 2 removable, self powered uhub1: 4 ports with 4 removable, self powered uhub4: 5 ports with 5 removable, self powered uhub6: 5 ports with 5 removable, self powered uhub7: 5 ports with 4 removable, self powered ugen0.2: <vendor 0x2109 USB2.0 Hub> at usbus0 uhub8 on uhub7 uhub8: <vendor 0x2109 USB2.0 Hub, class 9/0, rev 2.10/4.20, addr 1> on usbus0 uhub8: 4 ports with 4 removable, self powered uhub0: 4 ports with 4 removable, self powered uhub3: 5 ports with 5 removable, self powered uhub5: 5 ports with 5 removable, self powered ugen0.3: <Seagate BUP SL> at usbus0 umass0 on uhub7 umass0: <Seagate BUP SL, class 0/0, rev 3.00/1.00, addr 2> on usbus0 umass0: SCSI over Bulk-Only; quirks = 0x0100 umass0:9:0: Attached to scbus9 ugen3.2: <Logitech USB Receiver> at usbus3 ums0 on uhub4 ums0: <Logitech USB Receiver, class 0/0, rev 1.10/46.00, addr 2> on usbus3 ums0: 8 buttons and [XYZT] coordinates ID=0 uhid0 on uhub4 uhid0: <Logitech USB Receiver, class 0/0, rev 1.10/46.00, addr 2> on usbus3 % dmesg | grep da0 Trying to mount root from ufs:/dev/ada0p2 [rw]... da0 at umass-sim0 bus 0 scbus9 target 0 lun 0 da0: <Seagate BUP SL 0304> Fixed Direct Access SPC-4 SCSI device da0: Serial Number NA7PEGM0 da0: 400.000MB/s transfers da0: 3815447MB (7814037167 512 byte sectors) da0: quirks=0x2<NO_6_BYTE> -- Steve
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