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* linknamespace failures with massively parallel builds
@ 2015-05-21 16:36 Florian Weimer
  2015-05-21 20:17 ` Carlos O'Donell
  0 siblings, 1 reply; 2+ messages in thread
From: Florian Weimer @ 2015-05-21 16:36 UTC (permalink / raw)
  To: GNU C Library

I see a lot of failures when running make check with large -j numbers
(on hardware which has a matching number of threads).  Here are some
example:

FAIL: conform/XPG4/setjmp.h/linknamespace
FAIL: conform/XPG4/signal.h/linknamespace
FAIL: conform/XPG4/string.h/linknamespace
FAIL: conform/XPG4/strings.h/linknamespace
FAIL: conform/XPG4/stropts.h/linknamespace
FAIL: conform/XPG4/sys/ipc.h/linknamespace
FAIL: conform/XPG4/sys/mman.h/linknamespace
FAIL: conform/XPG4/sys/msg.h/linknamespace

Does anyone else see this?

linknamespace.pl exits with 1, with the following output:

==> conform/XPG4/termios.h/linknamespace.out <==
[initial] cfgetispeed
[initial] cfgetospeed
[initial] cfsetispeed
[initial] cfsetospeed
[initial] cfgetispeed -> [libc.a(speed.o)] __libc_errno ->
[libc.a(errno.o)] errno
[initial] tcdrain
[initial] tcflow
[initial] tcflush
[initial] tcgetattr
[initial] tcsendbreak
[initial] tcsetattr

==> conform/XPG4/termios.h/linknamespace.test-result <==
FAIL: conform/XPG4/termios.h/linknamespace
original exit status 1

I looked for file system races as an explanation, but I don't see them.

-- 
Florian Weimer / Red Hat Product Security

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: linknamespace failures with massively parallel builds
  2015-05-21 16:36 linknamespace failures with massively parallel builds Florian Weimer
@ 2015-05-21 20:17 ` Carlos O'Donell
  0 siblings, 0 replies; 2+ messages in thread
From: Carlos O'Donell @ 2015-05-21 20:17 UTC (permalink / raw)
  To: Florian Weimer, GNU C Library

On 05/21/2015 12:07 PM, Florian Weimer wrote:
> I see a lot of failures when running make check with large -j numbers
> (on hardware which has a matching number of threads).  Here are some
> example:
> 
> FAIL: conform/XPG4/setjmp.h/linknamespace
> FAIL: conform/XPG4/signal.h/linknamespace
> FAIL: conform/XPG4/string.h/linknamespace
> FAIL: conform/XPG4/strings.h/linknamespace
> FAIL: conform/XPG4/stropts.h/linknamespace
> FAIL: conform/XPG4/sys/ipc.h/linknamespace
> FAIL: conform/XPG4/sys/mman.h/linknamespace
> FAIL: conform/XPG4/sys/msg.h/linknamespace
> 
> Does anyone else see this?
> 
> linknamespace.pl exits with 1, with the following output:
> 
> ==> conform/XPG4/termios.h/linknamespace.out <==
> [initial] cfgetispeed
> [initial] cfgetospeed
> [initial] cfsetispeed
> [initial] cfsetospeed
> [initial] cfgetispeed -> [libc.a(speed.o)] __libc_errno ->
> [libc.a(errno.o)] errno
> [initial] tcdrain
> [initial] tcflow
> [initial] tcflush
> [initial] tcgetattr
> [initial] tcsendbreak
> [initial] tcsetattr
> 
> ==> conform/XPG4/termios.h/linknamespace.test-result <==
> FAIL: conform/XPG4/termios.h/linknamespace
> original exit status 1
> 
> I looked for file system races as an explanation, but I don't see them.

I've never seen this failure. What is large -j? How many cpus?

I'll try to reproduce.

c.
 

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2015-05-21 16:36 linknamespace failures with massively parallel builds Florian Weimer
2015-05-21 20:17 ` Carlos O'Donell

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