Commit c21a493a2b44650707d06741601894329486f2ad ('powerpc/xmon: Fix
data-breakpoint') was part of v4.10.2 stable (Ubuntu-4.10.0-14.16)
** Also affects: linux (Ubuntu Zesty)
Importance: Undecided
Assignee: Taco Screen team (taco-screen-team)
Status: New
** Changed in: linux (Ubuntu Zesty)
Status: New => Fix Released
** Changed in: linux (Ubuntu Zesty)
Assignee: Taco Screen team (taco-screen-team) => Tim Gardner (timg-tpi)
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https://bugs.launchpad.net/bugs/1675772
Title:
Ubuntu 17.04: xmon: data-breakpoint not working
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Zesty:
Fix Released
Bug description:
Steps to Reproduce:
$ sudo cat /proc/kallsyms | grep pid_max
c000000001308794 D pid_max
$ echo x > /proc/sysrq-trigger
xmon> bd c000000001308794
xmon> x
As soon as pid_max got accessed, machine should automatically enter
into xmon. But that is not happening.
Machine detail:
$ uname -a
Linux tul163-u1704-qemu 4.10.0-13-generic #15 SMP Wed Mar 22 06:35:20 EDT
2017 ppc64le ppc64le ppc64le GNU/Linux
$ cat /etc/*release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=17.04
DISTRIB_CODENAME=zesty
DISTRIB_DESCRIPTION="Ubuntu Zesty Zapus (development branch)"
This patch solves the issue:
https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=c21a493a2b44650707d06741601894
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