** Changed in: linux (Ubuntu Bionic)
Status: New => Fix Released
** Changed in: linux (Ubuntu)
Status: New => Fix Released
** Changed in: ubuntu-z-systems
Status: In Progress => Fix Released
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Thx for re-trying on latest bionic kernel and confirming that the issue is gone.
Closing ticket.
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https://bugs.launchpad.net/bugs/1831899
Title:
Kernel Oops 3b in
Is this easily reproducible? Can you retry with the latest released
kernel 4.15.0-58.64? I haven't been able to reproduce the problem
locally so far. It would help if you could share the container and
workload, if that's possible at all. I'm still looking through the
dumpfiles but haven't made
** Changed in: ubuntu-z-systems
Status: Triaged => In Progress
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Title:
Kernel Oops 3b in libc-2.23 unable to handle pointer
Hi Robert, yes I can access this file and have it already downloaded.
It was just not clear to me that these are the same or similar dumps , so that
the other (huge) files are not really needed...
The tgz seems to be fine, since it's extractable w/o issues:
$ tar xvfz 4_kdumps.tgz
201905311552/
Thx for the additional data.
However, I can confirm juergh that there is an issue with both dumps:
I downloaded them again from Box, but vmconvert is still not able to handle
them:
$ ls -l
total 5735304
-rw-rw-r-- 1 ubuntu ubuntu 2737907971 Aug 14 08:23 dump.190529.1324
-rw-rw-r-- 1 ubuntu
Also, I'm not able to convert the VMDUMP. What am I missing?
$ vmconvert dump.190529.1324
vmconvert: Input file 'dump.190529.1324' is not a vmdump
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I started to take a look at the dumps and noticed that there are faults
in libc-2.17 (and not 2.23 as mentioned in the bug description). What
are you running in those docker images? Can you share some details about
what the machine was doing when it died?
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** Description changed:
== Comment: #0 - Robert J. Brenneman - 2019-05-30
11:16:45 ==
---Problem Description---
Kernel Oops 3b in libc-2.23 unable to handle pointer dereference in virtual
kernel address space
-
- Contact Information = rjbr...@us.ibm.com
-
+
+ Contact Information =
Tricky combination of glibc/libc6 and kernel.
Dumps are downloaded and bug assigned to kernel team.
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Title:
Kernel Oops 3b in
Discussed with IBM that we need some help evaluating the VM dumps.
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Title:
Kernel Oops 3b in libc-2.23 unable to handle pointer
Thx Robert, worked now.
Downloaded and transferred them to Canonical server 'mombin', folder
~fheimes/1831899
** Changed in: ubuntu-z-systems
Status: Incomplete => Triaged
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I get the following msg from IBM box, Robert:
"This shared file or folder link has been removed or is unavailable to you."
I guess you need to explicitly share it with me - since I'm external.
My box account is assigned to: frank.heimes canonical.com
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will keep an eye out for this during the upcoming SRU-cycle on s390x and
monitor the conversation with frank
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Tags added: bionic
** Tags added: s390x
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Hi Robert,
you may upload them to IBM box, I have an account there and may download them
to the Canonical network - that's how I also do it with my IBM project mgr as
well in case of dumps or other larger files.
Thanks for sharing the additional information so far.
But I'm still wondering
Hi does this happen on Ubuntu 18.04 or 16.04.5 ? (because kernel it's '4.15')
lsb_release -a
Since libc 2.23 is mentioned I assume it's 16.04.5.
apt-cache policy libc6 linux-generic
Please can you share a dump?
As well as the 'dbginfo' output?
The z/VM version seems to be 6.4 - do you know if
** Package changed: kernel-package (Ubuntu) => linux (Ubuntu)
** Also affects: ubuntu-z-systems
Importance: Undecided
Status: New
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