On Oct 25, 2017, at 5:31 AM, Greg KH gregkh@google.com wrote:
On Tue, Oct 24, 2017 at 08:18:48AM +0100, Milosz Wasilewski wrote:
On 24 October 2017 at 08:14, Linaro QA qa-reports@linaro.org wrote:
Summary
kernel: 4.9.58 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git branch: linux-4.9.y git commit: 4d4a6a3f8a12602ce8dc800123715fe7b5c1c3a1 git describe: v4.9.58 Test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-4.9-oe/build/v4.9.58
Regressions (compared to build v4.9.57-52-gf7dffe80de67)
dell-poweredge-r200 - x86_64: ltp-syscalls-tests:
perf_event_open02
test src: git://github.com/linux-test-project/ltp.git
It's the first time this test failed ever. Here is the log:
perf_event_open02 0 TINFO : overall task clock: 42794146 perf_event_open02 0 TINFO : hw sum: 903650031, task clock sum: 128422221 perf_event_open02 0 TINFO : ratio: 3.000930 perf_event_open02 1 TFAIL : perf_event_open02.c:333: test failed (ratio was greater than )
Source here: https://github.com/linux-test-project/ltp/blob/20170929/testcases/kernel/sys...
So what does this mean? Did a patch in this release break something? If so, what patch, and why isn't it showing up in 4.13 stable and 4.14-rc?
Looking at mainline historical data (which includes 4.13 if you scroll down far enough) : https://qa-reports.linaro.org/lkft/linux-mainline-oe/tests/ltp-syscalls-test...
Seems this one occasionally fails.
Looking at 4.9 : https://qa-reports.linaro.org/lkft/linux-stable-rc-4.9-oe/tests/ltp-syscalls...
Only one failure in the history recorded thus far.
In summary I don’t think we’re looking at a regression. I do think we’re looking at something worth a deeper look tho especially given it’s failing across architectures. How reproducible that might be… that’ll be the fun part.
thanks,
greg k-h _______________________________________________ Lts-dev mailing list Lts-dev@lists.linaro.org https://lists.linaro.org/mailman/listinfo/lts-dev