This is happening to me but not only from browsing.
I think it is a larger problem.
In my case, with a Phenom II x6 CPU, I get sudden reboots under several
different circumstances:
1. browsing with too many tabs (~30) probably with one or more using java or
flash causes immediate reboot. (firefox)
2. browsing with even with only one open tab a flash application may cause
immediate reboot. (firefox, adobe flash)
3. compiling with gcc, using "make -j7" (to utilize all six cores) sometimes
causes immediate reboot.
--Less often if the cpufreq governor is ondemand or conservative.
--More often if it is performance.
4. startup, shutdown, or suspend occasionally cause immediate reboot. I haven't
tested hibernate and it's difficult to know what happens with regular reboot,
but i suspect these may also cause immediate reboot.
These reboots are dangerous.
Sometimes they cause data corruption in whatever files are in use at the
time of reboot.
** Changed in: chromium-browser (Ubuntu)
Status: Expired => New
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https://bugs.launchpad.net/bugs/571377
Title:
The whole system suddenly reboots after few hours of browsing. (it
shuts down REALLY fast and then boots very slowly)
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