Messages in this thread | | | Date | Fri, 16 Feb 2018 10:38:36 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH v5 0/6] x86/apic: Fix restoring boot irq mode in reboot and kexec/kdump |
| |
* Baoquan He <bhe@redhat.com> wrote:
> This is v5 post. Newly added patch 0002 includes the change > related to KEXEC_JUMP path. Patch 0003 only includes the > regression fix. > > A regression bug was introduced in below commit. > commit 522e66464467 ("x86/apic: Disable I/O APIC before shutdown of the local APIC") > > It caused the action to fail that we try to restore boot irq mode > in reboot and kexec/kdump. Details can be seen in patch 0003. > > Warning can always be seen during kdump kernel boot on qemu/kvm > platform. Our customer even saw casual kdump kernel hang once in > ~30 attempts during stress testing of kdump on KVM machine. > > v4->v5: > Take out the change related to KEXEC_JUMP to a new patch 0002 > according to Eric's suggestion. > Patch 0003 in this series only includes the regression fix. > > v3->v4: > Eric pointed out that in patch 0002 the change related to > KEXEC_JUMP is not right. > Correct it. > > Add Fixes tag and Cc to stable.
Eric, are these patches looking good to you now?
Thanks,
Ingo
| |