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Spontaneous reboots when downloading via WiFi at maximum speed

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ApTeM
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Unhappy Spontaneous reboots when downloading via WiFi at maximum speed

When downloading large files via WiFi at maximum 802.11n speed (5GHz WiFi, 40MHz channel width, 150Mb/s bandwidth, ~13,5MB/sec actual download speed) my Nexus 5 spontaneously reboots. For the past hour it has rebooted five times already - I basically cannot download large files at all.

I have no active running applications except Google Chrome.

/proc/last_kmsg says that:

Code:
Boot info:
Last boot reason: wdog_bark
Does anyone else have this problem?
 
shotta35
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Are you stock or what? 4.4.1? Write rates on Anandtech showed 70+MB/s so it should be able to Handle 13MB/s easy.

Can't say I have this issue as I can't pull 13MB/s over WIFI either way. Hell I kinda find it impossible for you to be getting that much anyways since the max you can get from a 150Mbps link is 80-90Mbps anyways which would be 10-11MB/s max in perfect world.
 
ApTeM
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I'm on stock 4.4.0 as 4.4.1 hasn't yet arrived to my place.

I've no idea how Network Monitor Mini calculates its speed, let's say it's up to 14'000'000 bytes per second which makes it 112Mbit/sec which is a lot lower than the theoretical maximum of 150Mbit/sec, so I'm not lying.

BTW, I've discovered that pulling data at this rate makes the top of my phone significantly warm (almost hot) - I've no idea why since last time I checked WiFi has a very low power consumption.

Anyway, my phone has cooled off and I've just copied 8gigs of data without reboots. Next time I will just make sure that it's sufficiently cooled before doing that again.
 
bblzd
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Apparently N5 has a discrete antenna for WLAN/BT which would make only 1 part of the phone hot in your case and also some weirdness was noted at max speeds:

"Oddly enough one thing I noticed is that touch input seems to be blocked entirely on the Nexus 5 until iPerf is quit. Iím not sure whatís going on here when the WiFi link is completely saturated, but it seems that touch response becomes very slow. I have no issues with range or connection stability on the Nexus 5, and Iíll also note that the device doesnít antenna share, but rather has a discrete antenna for WLAN/BT."

-Anand review
W32
 
ApTeM
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That explains almost everything, except, why do I get spontaneous reboots?
 
ApTeM
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Android 4.4.2 hasn't fixed the issue unfortunately. Google filed an internal issue three weeks ago, but I haven't heard from them since.
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