exportfs and virsh hang on CentOS 7.5 kernel 3.10.0-862.x

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Ben_Stanley
Posts: 1
Joined: 2018/06/18 02:33:51

exportfs and virsh hang on CentOS 7.5 kernel 3.10.0-862.x

Post by Ben_Stanley » 2018/06/18 16:20:25

I'm having trouble with the Cents 7.5 kernels 3.10.0-862.x

I'm having the following problems that I have noticed so far:
* exportfs hangs
* virsh list hangs

I have been able to work around these problems by downgrading my kernel to 3.10.0-693.21.1.
When I downgrade, the problems disappear and everything works as expected.

Please find below the getinfo output for the two configurations tested.

getinfo 3.10.0-693.21.1.el7.x86_64 works
https://pastebin.com/yaEZTjSS

getinfo 3.10.0-862.3.3.el7.x86_64 fails
https://pastebin.com/xgNgnQDH

Also /var/log/messages for each kernel

/var/log/messages for boot 3.10.0-693.21.1.el7.x86_64 works
https://pastebin.com/JaBnJJef

/var/log/messages for boot 3.10.0-862.3.3.el7.x86_64 fails
https://pastebin.com/H77DuxXh

Could I please get some help to troubleshoot what is going on with the newer kernel, as staying with the old kernel is not a good solution!

Thanks,
Ben.

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TrevorH
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Posts: 33202
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: exportfs and virsh hang on CentOS 7.5 kernel 3.10.0-862.x

Post by TrevorH » 2018/06/18 17:23:58

These are not generic problems that happen to everyone. I've just run exportfs -ra on my system here which is using 3.10.0-862.3.2.el7.x86_64 and it was fine. I also have a pair of machines at work that are running 7.5 and those are VM hosts pretty much exclusively managed using virsh and I've not seen problems there either.

I don't see anything useful in any of the output you've provided so far, sorry. Did you try using strace to attach to the hung process?
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke

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