APPLIED[Unstable]: [SRU][Bionic][Cosmic][PATCH 0/1] powerpc/vdso: Correct call frame information

Seth Forshee seth.forshee at
Wed Oct 24 15:37:14 UTC 2018

On Tue, Oct 16, 2018 at 10:17:54AM -0400, Joseph Salisbury wrote:
> BugLink:
> == SRU Justification ==
> IBM is requesting this commit in Bionic and Cosmic.  They report that they 
> are not able to unwind the stack from within __kernel_clock_gettime in the 
> Linux vDSO on Summit. This affects both DDT and MAP (via GDB and libunwind). 
> The issue is more serious than may first appear as the function appears to 
> be called somewhat often by the CUDA runtime, and can defer to a syscall 
> making it relatively time consuming (making it more likely to be encountered).
> This commit is currently still in linux-next.
> == Fix ==
> 56d20861c027 ("powerpc/vdso: Correct call frame information") linux-next
> == Regression Potential ==
> Low.  Limited to powerpc.
> == Test Case ==
> A test kernel was built with this patch and tested by the original bug reporter.
> The bug reporter states the test kernel resolved the bug.

Applied to unstable/master, thanks!

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