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

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Brian Murray <brian@xxxxxxxxxx>
Date: Wed, 23 Mar 2016 19:52:15 -0000
Reply-to: Bug 1558764 <1558764@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Package changed: ubuntu-release-upgrader (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1558764

Title:
  Sysrq trigger g cause system hang on Ubuntu 15.10

Status in linux package in Ubuntu:
  Incomplete

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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