Also have 820m Optimus technology, and can't get prime worked, just
bumblebee, sometimes (1 of 10 ;)
** Changed in: nvidia-settings (Ubuntu)
Status: New = Confirmed
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Public bug reported:
I am running lxd 3.0 on ubuntu 18.04 with kernel 4.15.0-22-generic and
4.15.0-20-generic (same behaviour) with zfs backend (0.7.5-1ubuntu16;
also tried 0.7.9).
Sometimes lxd hangs when I try to stop / restart or "stop && move" some
containers. Furhter investigation showed
Little notice also: after that hang is happend you can't shutdown or
reboot your server, you need to reset it or turn it off manually (or via
ipmi).
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Another experiment:
1) Setting new ubuntu 18.04 server with LXD on ZFS - zfs hangs on ct restart
2) Install 4.13.0-36 (from 16.04 HWE install disk) kernel + zfs 0.6.5 from
xenial repo (because 0.7.5 not compatible with old kernel)
3) Setup grub to load old kernel and reboot
4) And... everything
And another little update:
I started to downgrade kernels on my serves (ubuntu 18.04 lxd hw nodes) and
also I had a problem: HP blade gen8 hangs on reboot/shutdown (system indicates
blade failure and you need to pull it off and insert again), while gen7 works
fine.
With 4.13 kernel gen8 works
4.15.0-23-generic - same bug: zfs still hangs.
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https://bugs.launchpad.net/bugs/1773392
Title:
zfs hangs on mount/unmount
Status in linux package in Ubuntu:
Confirmed
And another little update to previous experiment:
Everything works fine with kernel 4.13.0-36 and zfs 0.7.5 IF you create new
zpool with disabled unsupported features:
feature@multi_vdev_crash_dump
feature@large_dnode
feature@sha512
feature@skein
feature@edonr
feature@userobj_accounting
Problem
Little update here:
I tried ubuntu server 16.04 with HWE (4.13.0-36-generic) and lxd 3.0 + zfs
0.7.5 (latest from bionic repo) - and it seems there is no such bug with 4.13
kernel.
After that I updated kernel (from bionic repo again - 4.15.0-22-generic)
- and but appear again: zfs hangs if my
apport information
** Tags added: apport-collected
** Description changed:
I am running lxd 3.0 on ubuntu 18.04 with kernel 4.15.0-22-generic and
4.15.0-20-generic (same behaviour) with zfs backend (0.7.5-1ubuntu16;
also tried 0.7.9).
Sometimes lxd hangs when I try to stop / restart
apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1773392/+attachment/5145445/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1773392/+attachment/5145447/+files/ProcInterrupts.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1773392/+attachment/5145449/+files/UdevDb.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1773392/+attachment/5145444/+files/Lspci.txt
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https://bugs.launchpad.net/bugs/1773392
apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1773392/+attachment/5145443/+files/CurrentDmesg.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1773392/+attachment/5145448/+files/ProcModules.txt
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apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1773392/+attachment/5145446/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1773392/+attachment/5145450/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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I can confirm now that fix works for me.
Do somebody knows when this kernel and zfsutils package will move from proposed
to updates?
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It seems like 4.15.0-29 (uploaded right now to proposed) is not the
kernel we are looking for.
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https://bugs.launchpad.net/bugs/1781364
Title:
Kernel error "task
My experiments was here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1773392
I installed new 18.04 + zfs + lxd - zfs hangs (well, that would be awkward if
would not)
+zfsutils-linux=0.7.5-1ubuntu16.3 - zfs hangs (ok, we need upgrade kernel too)
+kernel=4.15.0.28 (all packages)-
Ah, I thought that kernel (module) in proposed already patched. I understood
comment #8 like "don't forget to upgrade kernel from proposed!", while it is
"wait until fixed kernel in proposed".
Now it makes sense, thank you.
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StefanF (stefan) , as i see ubuntu not very interesting to solve this
bug. Nothing changed in past six months.
I think best off all - write to lkml or sta...@vger.kernel.org and ask
help from kernel devs.
P.S. I have this problem and want to say very big thanks for your
workaround.
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You
Can confirm this with GDM, without haveged, on a Lenovo Thinkpad S440:
- with kernel 4.15.0-24, GDM comes up after several minutes
- if I wiggle the touchpad, in a dozen seconds
- with kernel 4.15.0-23, immediately (no issue)
Strangely, I recall that when I first experienced this issue a couple
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