Re: svn commit: r218970 - in head/sys: compat/linux sys
Quoting Chagin Dmitry (from Sat, 5 Mar 2011 22:45:28 +0300): On Sat, Mar 05, 2011 at 08:02:44PM +0100, Lucius Windschuh wrote: BTW, is there an easy way to debug such futex issues, other than perhaps linux_kdump? try r219242. kdump now (in HEAD) decode linux syscalls. also see ktr(4). DTrace is much more leightwight, does not need as much configuration in the kernel as KTR (once KDTRACE_HOOKS is inside), and is much more flexibel. Bye, Alexander. -- Greatness is a transitory experience. It is never consistent. http://www.Leidinger.netAlexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137 ___ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
Re: svn commit: r218970 - in head/sys: compat/linux sys
2011/3/5 Chagin Dmitry : > try r219242. kdump now (in HEAD) decode linux syscalls. also see ktr(4). Oh, forgot the first rule: "svn up" before posting. It works again, thank you. :-D Lucius ___ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
Re: svn commit: r218970 - in head/sys: compat/linux sys
On Sat, Mar 05, 2011 at 08:02:44PM +0100, Lucius Windschuh wrote: > Hi John, hi Dmitry. > > 2011/2/23 John Baldwin : > > New Revision: 218970 > > [...] > > Log: > > Use umtx_key objects to uniquely identify futexes. Private futexes in > > different processes that happen to use the same user address in the > > separate processes will now be treated as distinct futexes rather than the > > same futex. We can now honor shared futexes properly by mapping them to a > > PROCESS_SHARED umtx_key. Private futexes use THREAD_SHARED umtx_key > > objects. > > This change breaks linux-jdk-1.6.0, at least for me on FreeBSD 9 i386: > > $ /usr/local/linux-sun-jdk1.6.0/bin/java > Usage: java [-options] class [args...] >(to execute a class) >or java [-options] -jar jarfile [args...] >(to execute a jar file) > > where options include: > -d32 use a 32-bit data model if available > > -d64 use a 64-bit data model if available > -client to select the "client" VM > -server to select the "server" VM > -hotspot is a synonym for the "client" VM [deprecated] > The default VM is server, > because you are running on a server-class machine. > > -cp > -classpath > A : separated list of directories, JAR archives, > and ZIP archives to search for class files. > -D= > set a system property > -verbose[:class|gc|jni] > enable verbose output > -version print product version and exit > -version: > require the specified version to run > -showversion print product version and continue > -jre-restrict-search | -jre-no-restrict-search > include/exclude user private JREs in the version search > -? -help print this help message > -Xprint help on non-standard options > -ea[:...|:] > -enableassertions[:...|:] > enable assertions > -da[:...|:] > -disableassertions[:...|:] > disable assertions > -esa | -enablesystemassertions > enable system assertions > -dsa | -disablesystemassertions > disable system assertions > -agentlib:[=] > load native agent library , e.g. -agentlib:hprof > see also, -agentlib:jdwp=help and -agentlib:hprof=help > -agentpath:[=] > load native agent library by full pathname > -javaagent:[=] > load Java programming language agent, see > java.lang.instrument > -splash: > show splash screen with specified image > ^T > load: 1.62 cmd: java 4007 [futex] 3.33r 0.00u 0.00s 0% 10784k > (... wait a while) > ^T > load: 1.62 cmd: java 4007 [futex] 4.45r 0.00u 0.00s 0% 10784k > (... doesn't finish) > > With r218969, the process finishes as expected. > > BTW, is there an easy way to debug such futex issues, other than > perhaps linux_kdump? > try r219242. kdump now (in HEAD) decode linux syscalls. also see ktr(4). -- Have fun! chd pgpmL2tqzf0jd.pgp Description: PGP signature
Re: svn commit: r218970 - in head/sys: compat/linux sys
Hi John, hi Dmitry. 2011/2/23 John Baldwin : > New Revision: 218970 > [...] > Log: > Use umtx_key objects to uniquely identify futexes. Private futexes in > different processes that happen to use the same user address in the > separate processes will now be treated as distinct futexes rather than the > same futex. We can now honor shared futexes properly by mapping them to a > PROCESS_SHARED umtx_key. Private futexes use THREAD_SHARED umtx_key > objects. This change breaks linux-jdk-1.6.0, at least for me on FreeBSD 9 i386: $ /usr/local/linux-sun-jdk1.6.0/bin/java Usage: java [-options] class [args...] (to execute a class) or java [-options] -jar jarfile [args...] (to execute a jar file) where options include: -d32 use a 32-bit data model if available -d64 use a 64-bit data model if available -client to select the "client" VM -server to select the "server" VM -hotspot is a synonym for the "client" VM [deprecated] The default VM is server, because you are running on a server-class machine. -cp -classpath A : separated list of directories, JAR archives, and ZIP archives to search for class files. -D= set a system property -verbose[:class|gc|jni] enable verbose output -version print product version and exit -version: require the specified version to run -showversion print product version and continue -jre-restrict-search | -jre-no-restrict-search include/exclude user private JREs in the version search -? -help print this help message -Xprint help on non-standard options -ea[:...|:] -enableassertions[:...|:] enable assertions -da[:...|:] -disableassertions[:...|:] disable assertions -esa | -enablesystemassertions enable system assertions -dsa | -disablesystemassertions disable system assertions -agentlib:[=] load native agent library , e.g. -agentlib:hprof see also, -agentlib:jdwp=help and -agentlib:hprof=help -agentpath:[=] load native agent library by full pathname -javaagent:[=] load Java programming language agent, see java.lang.instrument -splash: show splash screen with specified image ^T load: 1.62 cmd: java 4007 [futex] 3.33r 0.00u 0.00s 0% 10784k (... wait a while) ^T load: 1.62 cmd: java 4007 [futex] 4.45r 0.00u 0.00s 0% 10784k (... doesn't finish) With r218969, the process finishes as expected. BTW, is there an easy way to debug such futex issues, other than perhaps linux_kdump? Lucius ___ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
