On 08.01.20 14:20, Jan Beulich wrote:
On 08.01.2020 12:01, Juergen Gross wrote:--- a/xen/arch/x86/smpboot.c +++ b/xen/arch/x86/smpboot.c @@ -945,6 +945,8 @@ static void cpu_smpboot_free(unsigned int cpu, bool remove) (per_cpu(stubs.addr, cpu) | ~PAGE_MASK) + 1); if ( i == STUBS_PER_PAGE ) free_domheap_page(mfn_to_page(mfn)); + per_cpu(stubs.addr, cpu) = 0; + per_cpu(stubs.mfn, cpu) = 0; }Afaict this was a regression from the introduction of CPU parking: Prior to that, per-CPU data would have been zeroed in all cases before a new CPU was unleashed. I think it would be helpful it this was mentioned in the description (possibly by way of a Fixes: tag).
Okay, will do. Just to be sure - you are thinking of commit 2e6c8f182? Juergen _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
