1. 30 Jan, 2017 1 commit
    • Liam R. Howlett's avatar
      sparc64: Zero pages on allocation for mondo and error queues. · 7a7dc961
      Liam R. Howlett authored
      Error queues use a non-zero first word to detect if the queues are full.
      Using pages that have not been zeroed may result in false positive
      overflow events.  These queues are set up once during boot so zeroing
      all mondo and error queue pages is safe.
      
      Note that the false positive overflow does not always occur because the
      page allocation for these queues is so early in the boot cycle that
      higher number CPUs get fresh pages.  It is only when traps are serviced
      with lower number CPUs who were given already used pages that this issue
      is exposed.
      Signed-off-by: default avatarLiam R. Howlett <Liam.Howlett@Oracle.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7a7dc961
  2. 17 Jan, 2017 1 commit
  3. 27 Dec, 2016 1 commit
  4. 20 Dec, 2016 37 commits