Date: Wed, 31 Jul 2019 22:59:16 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: mike tancsa <mike@sentex.net>, freebsd-stable@freebsd.org Subject: Re: extremely slow boot of RELENG_10 Message-ID: <776e2f46-7a9e-c299-1c41-f2ca1ee90c32@grosbein.net> In-Reply-To: <9f30d6b9-81bb-769c-1a03-1e81277ae07d@sentex.net> References: <9f30d6b9-81bb-769c-1a03-1e81277ae07d@sentex.net>
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31.07.2019 22:30, mike tancsa wrote: > While moving a pair of ZFS disks from an *very* old motherboard to a new > one, I ran into an odd problem I had not seen before. The box was > running just fine RELENG_10 from FreeBSD 10.1-STABLE #18 r279918 on 10yr > old MB. Boots normally and expected speeds for old hardware/CPU. But on > the new one, as soon as the |\-/|\ starts spinning, it looks like its > 1/100th of the speed it should be. Unfortunately, we didnt have the > luxury to wait for it to boot up all the way. We put the disks back in > the old motherboard, did the RELENG_11 upgrade which included putting in > the new boot blocks after zpool upgrade and then the disks booted just > fine in the new box. We at first thought it was a hardware issue, but > same behaviour on another new MB, new SATA cables etc etc. > > Any idea what was going on behind the scenes that might have caused it > ? Is there something about the way the old boot blocks would interact > poorly with new motherboards (in this case, a SuperMicro X11SSH-F) ? Maybe it attempted dual-console boot involving output to serial port...
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