Public bug reported: shutting down RT SMP 5.13 impish kernels in kvm-qemu is hanging in 1 in 20 or so reboots. gdb shows the hang is as follows:
#0 0xffffffff81044f72 in native_halt () at /home/cking/rt-impish/impish/arch/x86/include/asm/irqflags.h:57 #1 stop_this_cpu (dummy=dummy@entry=0x0 <fixed_percpu_data>) at /home/cking/rt-impish/impish/arch/x86/kernel/process.c:744 #2 0xffffffff8106f70c in __sysvec_reboot (regs=<optimized out>) at /home/cking/rt-impish/impish/arch/x86/kernel/smp.c:138 #3 0xffffffff81c5f4f7 in sysvec_reboot (regs=0xffffffff82e03d78) at /home/cking/rt-impish/impish/arch/x86/kernel/smp.c:134 #4 0xffffffff81e00e02 in asm_sysvec_reboot () at /home/cking/rt-impish/impish/arch/x86/include/asm/idtentry.h:654 this gets stuck in: asm volatile("hlt": : :"memory"); ** Affects: linux (Ubuntu) Importance: High Assignee: Colin Ian King (colin-king) Status: In Progress ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Colin Ian King (colin-king) ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Changed in: linux (Ubuntu) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1938048 Title: 5.13 RT kernel hangs on SMP shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1938048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs