Today's "hang" involved a zombie compiz consuming 100% of a cpu, along
with an emacs instance consuming another 100%. Load average around 11,
and climbing. Only 22 zombies currently, but it was 4 when I managed to
get on with ssh.
I was in the process of installing software updates, using the GUI
Hmm - 73 zombies?! And systemd is in an uninterruptible sleep. It moreover has
not accumulated any time since I first ran top, so I'd say it's still in the
*same* uninterruptible sleep... for at least 14 minutes. Also, the number of
zombies has been increasing, as of right now, it's 187.
I
Note that the compiz process appears to be zombie, and "kill -9"
naturally fails to make it go away. I suppose it might be racking up all
this time attempting to dump core.
I wish I knew whether compiz has been berserk in all the cases where I
power cycled the system to regain control. If it has,
My apologies for going dark on you. I intend to try the upstream kernel,
but I've been haviing trouble finding time. With luck, I'll get it
installed this coming weekend.
Meanwhile, I've since had 2 or 3 standard recurrences, and one this
morning involving significantly diferent behaviour. (Of
This time, apport-collect appears to have worked.
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Title:
Hang after upgrade to 16.04
Status in linux package in Ubuntu:
apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860529/+files/IwConfig.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860533/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860528/+files/CurrentDmesg.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860539/+files/WifiSyslog.txt
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** Attachment added: "JournalErrors.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860530/+files/JournalErrors.txt
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** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860534/+files/ProcEnviron.txt
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** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860538/+files/UdevDb.txt
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** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860527/+files/CRDA.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860535/+files/ProcInterrupts.txt
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** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860532/+files/Lsusb.txt
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** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860531/+files/Lspci.txt
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** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860537/+files/PulseList.txt
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** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1680502/+attachment/4860536/+files/ProcModules.txt
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** Tags added: apport-collected xenial
** Description changed:
Last week I upgraded from 12.04 LTS to 14.04 LTS and then immediately to
16.04 LTS.
12.04 was not entirely stable; something was crashing regularly, and the
Ubuntu tools make it hard for a user to
No pop-ups after today's hang, so that symptom is probably coincidental.
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Title:
Hang after upgrade to 16.04
Status in linux
Assigning this to "linux" package. I have no evidence as to whether this
is a kernel issue, or a case of user space processes with crazy
priorities and tight loops etc. However in my experience (a) it takes a
kernel person to distinguish the two (b) kernel people are more
responsive than whoever
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