StarlingX

  1. Bug #1832854
  2. Comment #6

Comment 6 for bug 1832854

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to integ (master)

Reviewed: https://review.opendev.org/673028
Committed: https://git.openstack.org/cgit/starlingx/integ/commit/?id=56a91fec13cd018f998a0bdf0beed753efd94df5
Submitter: Zuul
Branch: master

commit 56a91fec13cd018f998a0bdf0beed753efd94df5
Author: Alex Kozyrev <email address hidden>
Date: Fri Jul 26 13:58:17 2019 -0400

    Backport the fix for deadlock in CFS-bandwidth timer locking

    Low-latency profile of StarlingX is affected by a deadlock in
    CFS scheduler. spin_lock is used in IRQ handler there instead of
    spin_lock_irqsave. This leads to an attempt to lock the same
    spinlock twice and inevitable system freeze. Backporting c0ad4aa4d8
    commit from upstream kernel to cure the issue.

    Change-Id: I5416c0e0886f42d2bcec8e3e5da063e6af6916f8
    Closes-bug: 1832854
    Signed-off-by: Alex Kozyrev <email address hidden>