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[Bug 1412331] [NEW] Stopping CPU causes system hang

 

Public bug reported:

ubuntu@n1:/sys/devices/system/cpu/cpu3$ ls -al
total 0
drwxr-xr-x 4 root root    0 Jan 16 04:38 .
drwxr-xr-x 7 root root    0 Jan 16 04:38 ..
drwxr-xr-x 5 root root    0 Jan 19 03:00 cpuidle
-r-------- 1 root root 4096 Jan 19 03:00 crash_notes
-rw-r--r-- 1 root root 4096 Jan 16 04:38 online
drwxr-xr-x 2 root root    0 Jan 16 04:38 topology
ubuntu@n1:/sys/devices/system/cpu/cpu3$ cat online 
1
ubuntu@n1:/sys/devices/system/cpu/cpu3$ echo 0 | sudo tee online
0
ubuntu@n1:/sys/devices/system/cpu/cpu3$ 
BootROM 1.15
Booting from SPI flash

BootROM 1.15
Booting from SPI flash

** Affects: linux-armadaxp (Ubuntu)
     Importance: Undecided
     Assignee: Ike Panhc (ikepanhc)
         Status: In Progress

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https://bugs.launchpad.net/bugs/1412331

Title:
  Stopping CPU causes system hang

Status in linux-armadaxp package in Ubuntu:
  In Progress

Bug description:
  ubuntu@n1:/sys/devices/system/cpu/cpu3$ ls -al
  total 0
  drwxr-xr-x 4 root root    0 Jan 16 04:38 .
  drwxr-xr-x 7 root root    0 Jan 16 04:38 ..
  drwxr-xr-x 5 root root    0 Jan 19 03:00 cpuidle
  -r-------- 1 root root 4096 Jan 19 03:00 crash_notes
  -rw-r--r-- 1 root root 4096 Jan 16 04:38 online
  drwxr-xr-x 2 root root    0 Jan 16 04:38 topology
  ubuntu@n1:/sys/devices/system/cpu/cpu3$ cat online 
  1
  ubuntu@n1:/sys/devices/system/cpu/cpu3$ echo 0 | sudo tee online
  0
  ubuntu@n1:/sys/devices/system/cpu/cpu3$ 
  BootROM 1.15
  Booting from SPI flash

  BootROM 1.15
  Booting from SPI flash

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Follow ups

References