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Re: FAIL nptl/tst-robustpi4
- From: Carlos O'Donell <carlos at redhat dot com>
- To: Stefan Liebler <stli at linux dot vnet dot ibm dot com>, libc-alpha at sourceware dot org
- Date: Thu, 26 Jan 2017 11:12:41 -0500
- Subject: Re: FAIL nptl/tst-robustpi4
- Authentication-results: sourceware.org; auth=none
- References: <b71bec8d-ef71-1903-c7a8-fafa2fa744f5@linux.vnet.ibm.com>
On 01/26/2017 10:29 AM, Stefan Liebler wrote:
> It seems as a race between futex- and exit-syscall causes ESRCH
> result from futex-syscall.
>
> I see those fails with Linux 4.8 / 4.9 running in a z/VM guest as
> well as with 4.6 on a LPAR (but less often).
I've seen tst-robustpi7 and tst-robustpi8 failures on all hardware
across a wide number of kernels, but never tst-robustpi4.
https://sourceware.org/bugzilla/show_bug.cgi?id=19004
The robustpi support is certainly not very robust as Torvald's
recent fixes show, and there still remains at least one design
flaw that can't be fixed.
e.g.
https://sourceware.org/bugzilla/show_bug.cgi?id=14485
and...
https://sourceware.org/bugzilla/show_bug.cgi?id=19089
--
Cheers,
Carlos.