Go to advanced search

by e-raser
Thu Sep 05, 2019 12:43 pm
Forum: General discussion
Topic: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case
Replies: 68
Views: 17681

Re: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case

After overclocking the Pi 4 4GB for testing purposes to 1.75 GHz ARM frequency and running stable for a few days I set it to 2.0 GHz. Stressberry benchmarks will follow in a few days, only notes so far: - idle temperature with the DLIRC case is about 1 to 3 degrees Celsius higher than with stock clo...
by e-raser
Mon Aug 26, 2019 6:01 pm
Forum: General discussion
Topic: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case
Replies: 68
Views: 17681

Re: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case

I've got to wonder how much these metal cases affect WiFi and Bluetooth performance? Great question. Did no before/after test but when switching my mediacenter hardware from Pi 2 to Pi 3 B+ (Pi 2 with external WiFi dongle, Pi 3 B+ with FLIRC case) the WiFi signal was significantly worse than with t...
by e-raser
Mon Aug 26, 2019 4:20 pm
Forum: General discussion
Topic: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case
Replies: 68
Views: 17681

Re: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case

Dude, just run a Stressberry benchmark. Your information like „watching YT videos temp. = xx degrees“ is not really comparable.

Nice setup anyway. What about the fan noise?
by e-raser
Tue Aug 20, 2019 1:25 pm
Forum: General discussion
Topic: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case
Replies: 68
Views: 17681

Re: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case

For me the FLIRC case is doing a really good job on the Pi 4. See stressberry comparison below. stressberry_Pi4(NoCase)vs.Pi4(FLIRCcase).png And if you wanna see the difference from a Pi 3 B+ in a FLIRC case ( green line) to the Pi 4 in the FLIRC case ( orange line): stressberry_Pi3B+vs.Pi4(NoCase)v...
by e-raser
Sun Mar 31, 2019 6:10 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

by e-raser
Fri Mar 29, 2019 9:45 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 270
Views: 84497

Re: Moving Linux kernel to 4.19

Man I´ve gone like crazy (like the Pi 3 B+ did the last months)! Spent sooooo much time on this, really DAYS, coming to conclusion: it must be a memory leak and very likely something in the kernel. rpi-update finally brought me here, seeing others suffering the same. So: Finally Kernel v4.19.30 seem...
by e-raser
Sat Mar 23, 2019 11:39 am
Forum: Raspbian
Topic: Raspberry Pi 3 Zram optimisation
Replies: 7
Views: 5624

Re: Raspberry Pi 3 Zram optimisation

zram-swap-config works good. Basic issue are RAM related, mostly OOM_REAPER killing processes. Didn’t happen a few weals ago, happened almost silently. Unfortunately zram helps a bit (it increases the timespan until OOM_REAPER kicks in) but the basic issue remains :-((((((((
by e-raser
Fri Mar 22, 2019 11:55 pm
Forum: Raspbian
Topic: Raspberry Pi 3 Zram optimisation
Replies: 7
Views: 5624

Re: Raspberry Pi 3 Zram optimisation

When "sudo update-rc.d zram.sh defaults" I get: insserv: warning: script 'zram.sh' missing LSB tags and overrides insserv: There is a loop between service watchdog and zram.sh if stopped insserv: loop involving service zram.sh at depth 2 insserv: loop involving service watchdog at depth 1 insserv: S...
by e-raser
Wed Mar 20, 2019 8:10 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

Update: /var/log/kern.log shows this when the system is on heavy RAM load --> does it indicate SD card problems??? Mar 20 20:01:16 raspberrypi kernel: [244162.600111] INFO: task kworker/2:2:8183 blocked for more than 120 seconds. Mar 20 20:01:19 raspberrypi kernel: [244162.600127] Tainted: G C 4.19....
by e-raser
Wed Mar 20, 2019 7:35 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

Hi there, I´m back with my issue which basically is the same. To remember ( details here ): kswapd0 is going crazy on a regular basis. Updates: I think I found the trigger for that: a cron job (nextcloud) triggers this behaviour, cause it´s pretty RAM intensive What I did some time ago was editing t...
by e-raser
Sun Mar 17, 2019 11:35 pm
Forum: Troubleshooting
Topic: Losing connection
Replies: 9
Views: 1017

Re: Losing connection

Hi there, I´m very lucky a google search on "lan78xx 1-1.1.1:1.0 eth0: kevent 0 may have been dropped" brought me to this topic. My Pi 3 B+ suffers from this error for months. Developers on Github really don´t care about this. I think my setup is pretty similar; I have some HDDs attached to the Pi u...
by e-raser
Sun Jan 20, 2019 4:41 pm
Forum: Troubleshooting
Topic: RPi 3 (not +) Page Allocation Stalls and Lockup During Heavy IO
Replies: 2
Views: 403

Re: RPi 3 (not +) Page Allocation Stalls and Lockup During Heavy IO

Same for me. I tracked down a lot of issues to the "page allocation stalls for xxx" messages in kern.log.

Did you or anyone manage to fix this?!?
by e-raser
Sat Jan 12, 2019 12:59 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

Even I‘m pretty sure it has nothing to do with it in my case (as I described: memory / kswapd issue): I use a FLIRC case.
by e-raser
Tue Jan 08, 2019 7:15 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

I´m trying with a different hardware (I guess my 3rd or 4th Pi 3 B+... what a pity) with same settings and same system (microSDXC) etc. to rule out any possible hardware cause. I think within 7 to 10 days I know if it´s a hardware of software thing.
by e-raser
Sat Dec 29, 2018 12:49 am
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

Holiday season, yes, and perhaps no-one actually knows what the problem is? Happy holidays :-) Maybe "no-one" can or wants to read? See bold text (summary) at the end of https://www.raspberrypi.org/forums/viewtopic.php?p=1402659#p1402659, I spent a lot of time to collect data, diagnose behaviour an...
by e-raser
Fri Dec 28, 2018 8:07 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

I think I "fixed" it by reverting the last change and enabling swapping again. Pi´s running for more than 6 days now (which is more than x2 the time it did before with those freeze/lock indicated reboots). Not 100 % sure system is running stable without any temporary issues or "only a minute lasting...
by e-raser
Fri Dec 21, 2018 12:24 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

No ideas? Guys I‘m totally lost and ran out ideas. What‘s the problem with handling USB devices for the Pi 3 B+?!?
by e-raser
Tue Dec 11, 2018 8:33 am
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

As I wrote several times: I sorted that clocking out already (intensively), Pi runs stable without USB HDDs attached. It‘s a RAM/swapping/USB issue, let‘s focus on that.
by e-raser
Mon Dec 10, 2018 5:31 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

Hi there, I´m almost out of ideas and need expert´s help on this. After many months of troubles since April 2018 (first bad hardware, than the power throttling with sdram frequency...) my Pi 3 B+ still is not running stable. And I´m very very very sure it´s because of my specific setup, having sever...
by e-raser
Tue Jun 19, 2018 7:52 pm
Forum: Troubleshooting
Topic: Emergency mode and root account locked (mounting disk with fstab)
Replies: 12
Views: 21633

Re: Emergency mode and root account locked (mounting disk with fstab)

No one? No ideas? I´ll try to add "fsck.repair=yes" to the /boot/cmdline.txt to work around the emergency mode. Next level would be to fully disable the emergency mode (as described here: https://forum-raspberrypi.de/forum/thread/36284-ssh-trotz-emergency-mode-em/?postID=301489#post301489). But all ...
by e-raser
Sun Apr 22, 2018 7:57 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

Hi, just a short "summary" (even it´s maybe a bit too early after only 2 days): 1) Switched to new (2nd) Pi 3 B+, manually set sdram freq back to 500 MHz 2) 20:50 20.04.2018: "sudo MEMTESTER_TEST_MASK=0x1000 memtester 128M" --> ran for 15 hours with 954 loops - completely stable, no reboots 3) 12:33...
by e-raser
Fri Apr 20, 2018 10:29 pm
Forum: Troubleshooting
Topic: Emergency mode and root account locked (mounting disk with fstab)
Replies: 12
Views: 21633

Re: Emergency mode and root account locked (mounting disk with fstab)

Same issue for me: Raspbian Stretch sometimes runs into emergency mode. Funny but true: Pressing <ENTER> once continues the boot process and the login prompt is shown. But of course it´s pretty difficult to press <ENTER> on the console if you´re (far) away from the pi :-) /etc/fstab only contains mo...
by e-raser
Fri Apr 20, 2018 2:06 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

Mine is dead again, all services down. Probably in emergency mode after automatic reboot (no console access currently). And I‘m running latest updates with SDRAM = 450 MHz. Not solved, not even a workaround. When I swap the SD card into my good old gorgeously stable Pi 2, system runs like forever, ...
by e-raser
Fri Apr 20, 2018 10:48 am
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

Mine is dead again, all services down. Probably in emergency mode after automatic reboot (no console access currently). And I‘m running latest updates with SDRAM = 450 MHz. Not solved, not even a workaround. When I swap the SD card into my good old gorgeously stable Pi 2, system runs like forever, P...
by e-raser
Thu Apr 19, 2018 9:14 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 464
Views: 59961

Re: Raspberry Pi 3 B+ lockups

Mine can run memtester (sudo MEMTESTER_TEST_MASK=0x1000 memtester 128M) for - last try - 4 and a half hours before rebooting (default clockings). Let it run on default clockings since this morning, quite stable. Therefore I took a closer look to the config ==> Is this schmoo-Setting default? Didn’t...

Go to advanced search