--- Comment From heinz-werner_se...@de.ibm.com 2020-07-01 07:04 EDT---
IBM Bugzilla-> closed, Fix Released with focal
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https://bugs.launchpad.net/bugs/1874055
Title:
--- Comment From niklas.schne...@ibm.com 2020-06-12 03:37 EDT---
Ok I just verified that this is now working as expected on
5.4.0-38-generic from Focal Proposed. Thank you!
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--- Comment From niklas.schne...@ibm.com 2020-05-26 04:04 EDT---
(In reply to comment #12)
> Hi Niklas, please can you have a look at the SRU Justification that I've now
> added to the bug description, with special focus on Test Case and Regression
> Potential.
> Please let me know if is
--- Comment From niklas.schne...@ibm.com 2020-05-18 07:18 EDT---
I agree, it's pretty big but this was the least impact approach we could think
of and it fixes a kernel crash that can be triggered from user space simply by
invoking the s390_pci_read/write_mmio syscalls when running with
--- Comment From niklas.schne...@ibm.com 2020-05-18 05:20 EDT---
My patch for this issue is now available publicly on the fixes branch of the
public s390 repository on kernel.org.
--- Comment From niklas.schne...@ibm.com 2020-04-21 09:41 EDT---
One of the PCI enhancements on Z15 are the enhanced PCI load/store instructions
which can be executed directly from user space code. When these instructions
are available and preexisting user space code still uses the old
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