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My PI is too cool. It freezes. I have playing with a PI Zero W over the last weeks. At first everything worked as expected. But now it developed some strange
by no_gravity 6y ago
My PI is too cool. It freezes.
I have playing with a PI Zero W over the last weeks. At first everything worked as expected.
But now it developed some strange "hangings" I cannot explain. It kinda randomly freezes in time for a few minutes every now and then.
Sometimes it takes several minutes to ssh into it. Sometimes, the terminal just freezes for several minutes.
Neither top nor iostat seem to show any elevated activity during these periods. Since they hang throughout the freeze, its a bit hard to say though.
The strangest thing: Pings to the PI always come back fast. So its probably not that the hardware really freezes completely.
- jstanley 6y agoI've had this sort of issue caused by bad SD cards. Basically anything that touches the disk can block for several seconds sometimes.
- numpad0 6y agodisk issues?
- mszcz 6y agoHave you tried replacing the SD card with a fresh one with a fresh install and checking if this still occurs? I've had a somewhat similar problem and it turned out to be a dying SD card.
- no_gravity 6y agoI will try that. At first I would like to see if I can find the problem. I would have thought that when the SD card is not responding, it would show up as "wa" in top and "%util" in iostat -x. But both are zero for the next output after a freeze.
- xrmagnum 6y agoIs your hostname added to /etc/hosts?
- dsun179 6y agoI had a similar problem. For me the reason was that I used a cheap charger with too less power.
- no_gravity 6y agoJust exchanged the charger .. the hanging still occurs.
- tleb_ 6y agoCould strace on the ssh server help you? You would know if it's a disk issue.
- no_gravity 6y agoHow would that work?
- bmurphy1976 6y agoSounds like a crappy sdcard to me. I tossed an older one out recently that would randomly stall during io operations.