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Message-ID: <55B7760F.3010107@arm.com>
Date: Tue, 28 Jul 2015 12:31:00 -0000
From: Szabolcs Nagy <szabolcs.nagy@arm.com>
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To: Carlos O'Donell <carlos@redhat.com>, 
 GNU C Library <libc-alpha@sourceware.org>,
 Marcus Shawcroft <Marcus.Shawcroft@arm.com>
Subject: Re: glibc 2.22 --- Stil frozen. Machine maintainers start testing.
References: <55AFB23E.5030908@arm.com> <55B75DDB.4090305@arm.com> <20150728113128.GF21252@vapier>
In-Reply-To: <20150728113128.GF21252@vapier>
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On 28/07/15 12:31, Mike Frysinger wrote:
> On 28 Jul 2015 11:47, Szabolcs Nagy wrote:
>> On 22/07/15 16:09, Szabolcs Nagy wrote:
>>> BZ 17918 dynamic-linker race: pthread_create can access
>>> GL(dl_tls_max_dtv_idx) and GL(dl_tls_generation) without
>>> holding the rtld lock.
>>> https://sourceware.org/bugzilla/show_bug.cgi?id=3D17918
>>> i don't know about any fix for this.
>>
>> this is the cause of nptl/tst-stack4 failure, it affects all archs,
>> it happens about once out of 100 runs here on aarch64.
>>
>> Inconsistency detected by ld.so: dl-tls.c: 493: _dl_allocate_tls_init:
>> Assertion `listp->slotinfo[cnt].gen <=3D _rtld_local._dl_tls_generation'
>> failed!
>
> is this a regression ?  if not, has it increased in frequency ?  if not,
> and there isn't a clear fix, i'm not sure it qualifies as a blocker.

it's not new, the frequency actually decreased since
https://sourceware.org/ml/libc-alpha/2015-03/msg00563.html
was committed.