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---Problem Description---
Wrong code execution with qemu
 
---Steps to Reproduce---
please have a look at the following bug:
   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112986
 
------------------------------------------------------------------------
Contact Information = Andreas Krebbel <kreb...@linux.ibm.com> 
 
Machine Type = IBM Z 
 
Userspace tool common name: qemu 
 
The userspace tool has the following bit modes: 64 bit 

Userspace deb: - 1:6.2+dfsg-2ubuntu6.15
------------------------------------------------------------------------
 
Frequently used s390x code sequences are wrongly executed when running with 
qemu instruction set emulation.

The problem has been fixed in upstream qemu already. A backport for qemu
7 branch has been committed as well. The qemu 6.2.0 version used in
Ubuntu 22.04 needs a backport of a trivial fix to work properly:

>From the GCC BZ:
Problem fixed in v8.0.0 
(https://gitlab.com/qemu-project/qemu/-/commit/54fce97cfcaf5463ee5f325bc1f1d4adc2772f38).
The fix was backported to v7.2.2 
(https://gitlab.com/qemu-project/qemu/-/commit/17b032c6598ea756889f25e8d3e4cd9f2036669b),
 but not to v6.

Please consider picking up
https://gitlab.com/qemu-project/qemu/-/commit/17b032c6598ea756889f25e8d3e4cd9f2036669b
for the Ubuntu 22.04 qemu package 1:6.2+dfsg-2ubuntu6.15

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Skipper Bug Screeners (skipper-screen-team)
         Status: New


** Tags: architecture-s39064 bugnameltc-204491 severity-high 
targetmilestone-inin---
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Wrong code execution of s390x code with qemu TCG
https://bugs.launchpad.net/bugs/2046439
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