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On Sat, 2008-07-26 at 23:41 +0530, Girish Shilamkar wrote:
> Hi Ted,
> While building e2fsprogs on ia64/rhel4 the following compile error was
> flagged:
>
> Error messages:
> make[4]: Leaving directory `/cache/build/BUILD/e2fsprogs-1.40.7.sun1/lib/uuid'
> CC clear.c
> CC compare.c
> CC copy.c
> CC gen_uuid.c
> gen_uuid.c: In function `uuid__generate_time':
> gen_uuid.c:493: internal compiler error: in ia64_expand_load_address, at
> config/ia64/ia64.c:1184
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://bugzilla.redhat.com/bugzilla> for instructions.
> Preprocessed source stored into /tmp/ccYkSBN6.out file, please attach this to
> your bugreport.
> make[3]: *** [gen_uuid.o] Error 1
>
> e2fsprogs, if supported, sets TLS to appropriate TLS type, which happens to be
> '__thread' for Linux. And hence THREAD_LOCAL is defined as 'static __thread' in
> uuid_gen.c. But it seems that RHEL4 glibc is incompatible with TLS on ia64,
> though e2fsprogs detected that '__thread' is usable.
>
> Further investigation revealed that, With '-O' option it is ok on all
> (rhel4, rhel5, sles9 & sles10) distros but with optimization
> level >=2(-O2, -O3, ...) the problem occurs on RHEL4.
>
> https://bugzilla.lustre.org/show_bug.cgi?id=15514
> has more details about the tests run to verify the above findings,
> comments # 9 and 10.
>
> Regards,
> Girish