> On Mar 28, 2017, at 14:27, Andrey Chernov <a...@freebsd.org> wrote:
… >> Using rc_debug=yes I see that it is the kernel problem, not rc problem. >> Sometimes rc backward sequence executed even fully, sometimes only >> partly, but in unpredictable moment inside rc sequence the kernel decide >> to reboot quickly (or even deadly hang in rare cases). Always without >> any "Syncing buffers..." leaving FS dirty. No zfs etc. just normal UFS, >> no EFI, no GPT. >> I change GELI swap to normal one, but it does not help. The same >> untouched config works for years, I see this bug for the first time in >> FreeBSD. >> > > I forget to mention that typescript and dmesg does not survive after > this reboot (or rare hang). Good to note. The simple explanation to the problem might be r307755, depending on when you last synced/built ^/head. I have a few more questions (if reverting that doesn't pan out): - What make/model of x86_64 are you running AMD (Bulldozer, etc) or Intel (Conroe/Nehalem/Westmere/Sandybridge/Haswell)? - Is this a custom built machine? If so, what is your motherboard? If not, who’s the vendor? - Is your system firmware up to date? - What does your make.conf/src.conf look like? - Are you running GENERIC or a custom kernel? If custom, could you please include the config somewhere? - Are you loading any drivers in loader.conf? - Are you using Linux emulation? - Are you running any blob drivers, like nvidia? Thanks! -Ngie
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