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Message #86729
[Bug 1386518] [NEW] utopic: Watchdog detected hard LOCKUP on cpu
You have been subscribed to a public bug:
After upgrading to Utopic, I have experienced two "crashes" (a few hours
apart). I am unable to identify the trigger. Searching for similar
bugs either apply to earlier releases of [K]Ubuntu or pertain to
hardware that I do not have. I say my system "crashes" as I never wait
long enough for the system to actually crash. I have had to reset the
system both times in order to generate a response. In both instances,
the mouse was still moving the cursor but no action by the mouse buttons
or keyboard typing generated a response. Also, the machine would not
respond to soft reset. A hard reset (prolonged depressing of the power
button) was necessary to regain control.
I have never experienced this issue before (on any hardware type) so I
have limited information to offer (as I don't know where to look). I
have attached the relevant syslog entries for the last crash. It is
here that I determined the CPU lockups. First CPU 4 had a hard lockup,
proceeded by a soft lockup on CPU 1.
Please let me know what else to gather when this occurs again.
- jss
** Affects: linux-meta (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment
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utopic: Watchdog detected hard LOCKUP on cpu
https://bugs.launchpad.net/bugs/1386518
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