Date: Sun, 2 Oct 2022 17:46:24 -0700 From: bob prohaska <fbsd@www.zefox.net> To: Klaus K??chemann <maciphone2@googlemail.com> Cc: Mark Millard <marklmi@yahoo.com>, freebsd-arm@freebsd.org Subject: Re: u-boot debug, was: Re: U-boot on RPI3, sees disk but won't boot it Message-ID: <20221003004624.GA3381@www.zefox.net> In-Reply-To: <EEC43DA1-6B68-4FDD-A68A-A3055E86E407@googlemail.com> References: <E3A1C678-8C47-4283-9F9F-4C9011DB8A2B@yahoo.com> <20221001174724.GA98055@www.zefox.net> <ABFDD634-5CB6-4DAE-B4DE-629CE7E4FE06@yahoo.com> <20221001193033.GA98348@www.zefox.net> <46226720-D867-4AD3-9559-A4365FAC28C4@yahoo.com> <6DB88FC9-629C-43E6-9673-32640FC547F7@yahoo.com> <20221002182049.GA2255@www.zefox.net> <5FFDAA6A-AD8C-4E40-A2EB-4082E5086679@googlemail.com> <38DFEB91-AC60-4FD1-8088-95B0A06C5E5D@yahoo.com> <EEC43DA1-6B68-4FDD-A68A-A3055E86E407@googlemail.com>
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On Sun, Oct 02, 2022 at 10:18:28PM +0200, Klaus K??chemann wrote: > > hard to read and remember every log but I thought Bob wrote about aprox. 30 successful reboots after the mdelay patch, That is correct. Shortly afterward I tried a second usb-sata enclosure. I didn't immediately notice a difference and though it didn't matter. You comments served to make me think again. > while of course that could be coincidence, who really knows what happens in this untrackable inconsistent behavior of the usb-boot?! Unfortunately in this case, human inconsistency (my own, alas) was compounding at least part of the trouble. The more troublesome bridge contains a JMS577 chip, the less troublesome JMS576. https://pdf1.alldatasheet.com/datasheet-pdf/view/1136441/JMICRON/JMS576.html Contains a brief description, but I didn't see much quantitative information. I've reverted the host to the less troublesome JMS576 and will try to reproduce some of the earlier results as a sanity check. Thanks for rattling my cage! bob prohaska > > > >
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