Public bug reported: ---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--- ** Tags added: architecture-s39064 bugnameltc-204491 severity-high targetmilestone-inin--- ** Changed in: ubuntu Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team) ** Package changed: ubuntu => linux (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2046439 Title: Wrong code execution of s390x code with qemu TCG Status in linux package in Ubuntu: New Bug description: ---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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2046439/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
