kernel-packages team mailing list archive

[Andy Whitcroft <apw@xxxxxxxxxxxxx>]

The above is not in a particularly chronological order, the following
patches were applied in the order below:

 powerpc/book3s: Split the common exception prolog logic into two section.
 powerpc/book3s: Introduce exclusive emergency stack for machine check exception.
 powerpc/book3s: handle machine check in Linux host.
 powerpc/book3s: Return from interrupt if coming from evil context.
 powerpc/book3s: Introduce a early machine check hook in cpu_spec.
 powerpc/book3s: Add flush_tlb operation in cpu_spec.
 powerpc/book3s: Flush SLB/TLBs if we get SLB/TLB machine check errors on power7.
 powerpc/book3s: Flush SLB/TLBs if we get SLB/TLB machine check errors on power8.
 powerpc/book3s: Decode and save machine check event.
 powerpc/book3s: Queue up and process delayed MCE events.
 powerpc/powernv: Remove machine check handling in OPAL.
 powerpc/powernv: Machine check exception handling.
 powerpc: Fix "attempt to move .org backwards" error
 powerpc: Fix endian issues in power7/8 machine check handler
 Move precessing of MCE queued event out from syscall exit path.
 UBUNTU: SAUCE: powerpc/book3s: Fix CFAR clobbering issue in machine check handler.
 UBUNTU: SAUCE: powerpc/book3s: Recover from MC in sapphire on SCOM read via MMIO.
 UBUNTU: SAUCE: powerpc/book3s: Fix mc_recoverable_range buffer overrun issue.

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https://bugs.launchpad.net/bugs/1301424

Title:
  powerpc: opal machine checks lead to kernel oops and application
  SIGSEGV

Status in “linux” package in Ubuntu:
  Fix Committed
Status in “linux” source package in Trusty:
  Fix Committed

Bug description:
  We're suffering kernel Oopses on multiple Power machines running
  Ubuntu 14.04 beta levels, with kernels ranging from (at least) 3.13.0-16
  through 3.13.0-19. We are running Ubuntu directly on top of OPAL,
  without KVM.

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