Date: Tue, 12 Oct 2021 11:33:50 -0700 From: bob prohaska <fbsd@www.zefox.net> To: freebsd-arm@freebsd.org Subject: Re: Oddities on Pi4 under -current Message-ID: <20211012183350.GA2046@www.zefox.net> In-Reply-To: <YWWk75gHT9DK%2B4tR@ceres.zyxst.net> References: <20211011163211.GA98507@www.zefox.net> <d45c15a9-12a3-4b8f-181c-9f2474e3dbb5@gmail.com> <20211012005641.GA99640@www.zefox.net> <YWWk75gHT9DK%2B4tR@ceres.zyxst.net>
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On Tue, Oct 12, 2021 at 04:08:31PM +0100, tech-lists wrote: > > On Mon, Oct 11, 2021 at 05:56:41PM -0700, bob prohaska wrote: > > A power conservation feature seems a likely culprit, if one has been > > newly added or turned on. > > > > The delayed response appeared after a world/kernel update, I think about > > two weeks ago. I didn't make any manual config changes. Dropped ssh sessions > > have been a problem for a while now, but this seems noticeably worse. > > ** this rpi4 has aluminium case heatsink and recommended-by-rpi PSU. Mine has a plastic case with a ~1" fan, no heatsinks installed, and a Canakit power supply. > > My rpi4/8GB has the following in /etc/rc.conf > [...] > powerd_enable="YES" Same here. > powerd_flags="-r 1" No flags for powerd > [...] > > means it'd only shift down if use was 0.00 IIUC. So in practice it never > shifts down. > > in /boot/msdos/config.txt : > [...] > over_voltage=8 > arm_freq=2147 > sdram_freq_min=3200 No such changes > [...] > > results in: > [...] > % sysctl dev.cpu.0 > dev.cpu.0.temperature: 72.0C > dev.cpu.0.freq_levels: 2100/-1 600/-1 > dev.cpu.0.freq: 2100 I get bob@nemesis:~ % sysctl dev.cpu.0 dev.cpu.0.temperature: 43.1C dev.cpu.0.freq_levels: 1500/-1 600/-1 dev.cpu.0.freq: 1500 > > at the time of writing: > % uptime > 4:01p.m. up 16 days, 3:10, 5 users, load averages: 4.49, 6.47, 4.68 > > because it's running a poudriere build. > Mine just started a poudriere build of www/firefox. It'll heat up some, but probably stay below 60 C. Uptime hasn't been a problem. > ssh never times out. It's running stable/13-n245223-af8d48ac4b8 built > 15th Sept. I'm dealing with -current built October 10th. Most ssh connections to the machine remain connected just fine. It's just those communicating with the usb-serial adapter that tend to break off. Thanks for writing, bob prohaska
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