On Tue, Feb 1, 2011 at 8:17 AM, Carmelo AMOROSO <[email protected]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 2/1/2011 5:14 PM, Nitin Garg wrote: >> Hope I created the patch correctly. Pls let me know if this is >> incorrect, otherwise pls add it to repository. >> >> Thanks, >> Nitin >> > > Nitin, > according to the comment by Thomas, I've understood that we already have > a good implementation in the nptl path, it should be just the case to > fix the buildsys to properly pick-up the right one. > > I will check... Khem ?
yes thats fine too it will fix nptl I thought moving it to common arm would make it LT use it too but probably fixing just for nptl it better > > Carmelo > >> On Tue, Feb 1, 2011 at 1:13 AM, Khem Raj <[email protected]> wrote: >> > On (01/02/11 00:32), Nitin Garg wrote: >> >> Recently we came accross an issue on ARMv7 processors while running >> >> multiple threads. If say 3 threads are running continuously, 1 or 2 >> >> might get locked somewhere. If we attach gdb and run again, all 3 >> >> threads start executing for a while and after some time 1 or 2 threads >> >> gets locked-up again. The backtrace showed the threads are stuck in >> >> __pthread_mutex_lock (atomic_compare_and_exchange_val_acq). >> >> >> >> We noticed that the atomic compare and exchange functions are not >> >> atomic for ARM. Once we added the Atomic compare and exchange >> >> function, the problem was resolved. >> >> >> >> Pls see below patch for review and kindly add it to next release. >> > >> > This looks ok to me but you have to send a properly formatted and >> > signed-off patch so it can be tested and included. Using git format-patch >> > and git send-email is your best bet >> > >> > -Khem >> > >> > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAk1IMi8ACgkQoRq/3BrK1s+NfgCdHXAXGJO4C/zGXQ2QuaNgMGfn > xzAAoLBQaoVqxQu5idKTxE/BxHDP4Tf+ > =SYRu > -----END PGP SIGNATURE----- > _______________________________________________ > uClibc mailing list > [email protected] > http://lists.busybox.net/mailman/listinfo/uclibc > _______________________________________________ uClibc mailing list [email protected] http://lists.busybox.net/mailman/listinfo/uclibc
