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[Bug 1558764] Re: Sysrq trigger g cause system hang on Ubuntu 15.10


Also, it might be worthwhile to test the latest mainline kernel, to see
if this bug is already fixed there.  It can be downloaded from:


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  Sysrq trigger g cause system hang on Ubuntu 15.10

Status in linux package in Ubuntu:

Bug description:
  I are using kgdb to debug kernel driver. The break point and sysrq
  work fine on Ubuntu 14.04. But when I upgrade Ubuntu from 14.04 to
  15.10, the sysrq trigger g (alt+sysrq+g) doesn't make gdb break and
  system hangs. It is a regression. The issue only happens after kernel
  booting up. It is OK during kernel booting.

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