Public bug reported: ---Debugger--- A debugger is not configured ---Steps to Reproduce--- ---Problem Description--- Qemu cmdline core dumped with more(8193 or more) cpus ---Debugger--- A debugger is not configured ---Steps to Reproduce--- Qemu cmdline core dumped when more number of CPUs were given.
[root@ltcmihawk39 ~]# qemu-system-ppc64 -accel tcg -smp 10,maxcpus=9000 ** ERROR:../tcg/region.c:782:tcg_region_init: assertion failed: (region_size >= 2 * page_size) Bail out! ERROR:../tcg/region.c:782:tcg_region_init: assertion failed: (region_size >= 2 * page_size) Aborted (core dumped) Expected Result: Warning message like "Number of cpus requested exceeds the cpus supported" Actual Result: core dumped Steps to Reproduce: -------------------- 1. Clone the upstream qemu from https://gitlab.com/qemu-project/qemu.git 2. Compile qemu with below steps. cd qemu/ git submodule init git submodule update --recursive ./configure --target-list=ppc64-softmmu --prefix=/usr make make install 3. set maxcpus=8193 or more [root@ltcmihawk39 ~]# qemu-system-ppc64 --version QEMU emulator version 8.0.94 (v8.1.0-rc4) Copyright (c) 2003-2023 Fabrice Bellard and the QEMU Project developers NOTE: This behavior is observed only when qemu is built without disabling the tcg. Contact Information = sthou...@in.ibm.com Machine Type = x ---uname output--- x Action needed Our IBM Dev want to include this patch in latest Canonical distro. Need the distro to review and integrate fixes provided by IBM https://github.com/qemu/qemu/commit/c4f91d7b7be76c47015521ab0109c6e998a369b0 Need to include this commit in latest Canonical distro. ** Affects: qemu (Ubuntu) Importance: Undecided Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Status: New ** Tags: architecture-ppc64le bugnameltc-205716 severity-high targetmilestone-inin--- ** Tags added: architecture-ppc64le bugnameltc-205716 severity-high targetmilestone-inin--- ** Changed in: ubuntu Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) ** Package changed: ubuntu => qemu (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2055003 Title: Qemu cmdline core dumped with more(8193 or more) cpus To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/2055003/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
