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On 20 May 2005, Lennart Sorensen prattled cheerily: > Maybe Debian compiled their glibc to not do NPTL on i386 yet. Not sure. This is not the case. Proof from ps -FT output: mysql 8473 8473 8472 0 29110 14056 0 May22 pts/1 /usr/sbin/mysqld mysql 8473 8475 8472 0 29110 14056 0 May22 pts/1 /usr/sbin/mysqld mysql 8473 8476 8472 0 29110 14056 0 May22 pts/1 /usr/sbin/mysqld mysql 8473 8477 8472 0 29110 14056 0 May22 pts/1 /usr/sbin/mysqld mysql 8473 8478 8472 0 29110 14056 0 May22 pts/1 /usr/sbin/mysqld mysql 8473 8479 8472 0 29110 14056 0 May22 pts/1 /usr/sbin/mysqld mysql 8473 8480 8472 0 29110 14056 0 May22 pts/1 /usr/sbin/mysqld mysql 8473 8481 8472 0 29110 14056 0 May22 pts/1 /usr/sbin/mysqld mysql 8473 8482 8472 0 29110 14056 0 May22 pts/1 /usr/sbin/mysqld > Hmm, after checking, it turns out if you use errno in your program, it > drops to linuxthreads, while using #include <errno.h> makes it able to > use NPTL when using 2.6 kernel. This is a distribution-specific patch. glibc as shipped by the FSF simply refuses to run programs that reference the errno symbol: errno is no longer an exported symbol at all. (This is reasonable, as such programs would fail to work on a multithreaded NPTL program in any case.) The only valid way to gain access to the errno symbol is to #include <errno.h>. This has been true for as long as glibc2 has existed. -- `Once again, I must remark on the far-reaching extent of my ladylike nature.' --- Rosie Taylor - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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