This is the mail archive of the
java@gcc.gnu.org
mailing list for the Java project.
Re: GC failure w/ THREAD_LOCAL_ALLOC ?
- From: Bryce McKinlay <bryce at waitaki dot otago dot ac dot nz>
- To: Jeff Sturm <jsturm at one-point dot com>
- Cc: "Boehm, Hans" <hans_boehm at hp dot com>, "'Michael Smith'"<msmith at spinnakernet dot com>, "'java at gcc dot gnu dot org'" <java at gcc dot gnu dot org>
- Date: Thu, 21 Mar 2002 18:57:49 +1200
- Subject: Re: GC failure w/ THREAD_LOCAL_ALLOC ?
- References: <Pine.LNX.4.10.10203202330001.9659-100000@mars.deadcafe.org>
Jeff Sturm wrote:
>On Thu, 21 Mar 2002, Bryce McKinlay wrote:
>
>>Its a 650Mhz mobile Pentium 3, redhat kernel 2.4.9-13, redhat
>>glibc-2.2.4-19.3. I can try it on some other machines later to be sure.
>>
>
>I'm having trouble reproducing the GCTest failure. My configuration is
>similar to Bryce's, though with glibc-2.2.4-13 and kernel 2.4.7-10 on a
>PIII.
>
>It appeared to hang the very first time I ran it, and never again
>thereafter.
>
I confirmed that I can also reproduce the problem on a 2x 450Mhz celeron
machine, this time with a 2001-12-03 GCC. It is harder to reproduce on
that machine, only failing about 1 in 3 attempts rather than nearly 100%
on the mobile P3. But here's the thing: if you run another task on the
machine (eg a long running benchmark), it seems to greatly increase the
chance of the race occuring. It almost never happens on an otherwise
idle machine!
regards
Bryce.