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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org> To: glibc-bugs@sourceware.org Subject: [Bug nptl/16657] Lock elision breaks pthread_mutex_destroy Date: Fri, 22 Aug 2014 11:52:00 -0000 [thread overview] Message-ID: <bug-16657-131-2XFxDwUZFj@http.sourceware.org/bugzilla/> (raw) In-Reply-To: <bug-16657-131@http.sourceware.org/bugzilla/> https://sourceware.org/bugzilla/show_bug.cgi?id=16657 --- Comment #28 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> --- This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GNU C Library master sources". The branch, azanella/lockelision-ppc has been created at 412d804e06543203a31c06988a809e7c88d06b2b (commit) - Log ----------------------------------------------------------------- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=412d804e06543203a31c06988a809e7c88d06b2b commit 412d804e06543203a31c06988a809e7c88d06b2b Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com> Date: Wed Aug 20 15:50:58 2014 -0400 PowerPC: abort transaction in syscalls Linux kernel powerpc documentation states issuing a syscall inside a transaction is not recommended and may lead to undefined behavior. It also states syscalls does not abort transactoin neither they run in transactional state. To avoid side-effects bein visible outside transactions, GLIBC with lock elision enable issues a transaction abort instruction just before all syscalls if hardware supports hardware transactions. https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=25a5dad5f14f747577a5cffeafcd8bd5a52b31bf commit 25a5dad5f14f747577a5cffeafcd8bd5a52b31bf Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com> Date: Wed Jun 25 15:13:46 2014 -0400 PowerPC: Add adaptive elision to rwlocks This patch adds support for lock elision using ISA 2.07 hardware transactional memory for rwlocks. https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=00702011fff76cc94517889874359486995ef098 commit 00702011fff76cc94517889874359486995ef098 Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com> Date: Fri Mar 21 08:26:59 2014 -0400 PowerPC: Adjusting LE mutex destroy https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5421cda51f0c177cad1757dd69b9319a1db7155c commit 5421cda51f0c177cad1757dd69b9319a1db7155c Author: Andreas Schwab <schwab@suse.de> Date: Thu Mar 27 16:50:04 2014 -0400 Skip checks in pthread_mutex_destroy when doing elision When doing elisison the __nusers field is not updated, thus can have an arbitrary value. [BZ #16657] * nptl/pthread_mutex_destroy.c (__pthread_mutex_destroy): Skip checks when doing elision. * nptl/sysdeps/unix/sysv/linux/x86/pthread_mutex_destroy.c: New * file. https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d3f269d75a82389717ddf041edadb0d4f8459dba commit d3f269d75a82389717ddf041edadb0d4f8459dba Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com> Date: Wed Aug 20 15:57:10 2014 -0400 PowerPC: Add the low level infrastructure for pthreads lock elision This patch adds support for lock elision using ISA 2.07 hardware transactional memory instructions. ----------------------------------------------------------------------- -- You are receiving this mail because: You are on the CC list for the bug.
next prev parent reply other threads:[~2014-08-22 11:52 UTC|newest] Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-03-04 9:07 [Bug nptl/16657] New: Lock elision breaks pthread_mutex_trylock schwab@linux-m68k.org 2014-03-04 12:03 ` [Bug nptl/16657] " schwab@linux-m68k.org 2014-03-04 17:51 ` bugdal at aerifal dot cx 2014-03-05 0:32 ` andi-bz at firstfloor dot org 2014-03-05 1:12 ` bugdal at aerifal dot cx 2014-03-05 8:51 ` schwab@linux-m68k.org 2014-03-05 14:14 ` matz at suse dot de 2014-03-05 14:18 ` [Bug nptl/16657] Lock elision breaks pthread_mutex_detroy schwab@linux-m68k.org 2014-03-05 17:57 ` bugdal at aerifal dot cx 2014-03-06 16:03 ` carlos at redhat dot com 2014-03-10 14:14 ` triegel at redhat dot com 2014-03-18 15:31 ` snyder at bnl dot gov 2014-04-04 22:31 ` andi-bz at firstfloor dot org 2014-04-07 9:28 ` schwab@linux-m68k.org 2014-05-28 12:09 ` cvs-commit at gcc dot gnu.org 2014-06-02 14:25 ` pspacek at redhat dot com 2014-06-13 6:39 ` [Bug nptl/16657] Lock elision breaks pthread_mutex_destroy fweimer at redhat dot com 2014-06-16 16:41 ` fweimer at redhat dot com 2014-06-16 16:49 ` bugdal at aerifal dot cx 2014-06-16 16:55 ` fweimer at redhat dot com 2014-06-16 17:10 ` schwab@linux-m68k.org 2014-06-17 17:39 ` cvs-commit at gcc dot gnu.org 2014-06-25 19:23 ` cvs-commit at gcc dot gnu.org 2014-07-02 15:48 ` jmbnyc at gmail dot com 2014-07-02 16:19 ` bugdal at aerifal dot cx 2014-07-02 17:19 ` jmbnyc at gmail dot com 2014-07-02 18:07 ` bugdal at aerifal dot cx 2014-07-02 18:18 ` jmbnyc at gmail dot com 2014-07-03 3:13 ` andi-bz at firstfloor dot org 2014-07-03 3:25 ` jmbnyc at gmail dot com 2014-07-03 16:51 ` schwab@linux-m68k.org 2014-07-21 20:43 ` cvs-commit at gcc dot gnu.org 2014-08-19 0:36 ` cvs-commit at gcc dot gnu.org 2014-08-22 11:52 ` cvs-commit at gcc dot gnu.org [this message] 2014-08-25 13:05 ` cvs-commit at gcc dot gnu.org 2014-08-25 13:10 ` azanella at linux dot vnet.ibm.com 2014-10-01 18:43 ` carlos at redhat dot com 2014-10-01 20:49 ` schwab@linux-m68k.org 2014-10-01 21:00 ` carlos at redhat dot com 2014-10-01 21:04 ` azanella at linux dot vnet.ibm.com 2014-10-02 14:02 ` schwab@linux-m68k.org 2014-11-07 17:06 ` cvs-commit at gcc dot gnu.org 2014-12-11 11:45 ` cvs-commit at gcc dot gnu.org 2014-12-11 11:48 ` schwab@linux-m68k.org 2014-12-11 11:48 ` schwab@linux-m68k.org 2015-02-18 14:45 ` fweimer at redhat dot com 2015-08-28 20:43 ` cvs-commit at gcc dot gnu.org
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