Re: GDB + Threaded programs

[christos%astron.com@localhost (Christos Zoulas)]

In article 
<CABZpUSV4Sh9cMCnLHaw5sfVKV4pBJ9DU5d4L=82gkC=fuT4v8Q%mail.gmail.com@localhost>,
Stephan  <stephanwib%googlemail.com@localhost> wrote:
>Hi all,
>
>GDB in NetBSD 6.0 amd64 seems to have issues with threaded programs.
>For example, this is a Java process:
>
>----8<-------
># gdb -p 13694
>GNU gdb (GDB) 7.3.1
>Copyright (C) 2011 Free Software Foundation, Inc.
>License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
>This is free software: you are free to change and redistribute it.
>There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>and "show warranty" for details.
>This GDB was configured as "x86_64--netbsd".
>For bug reporting instructions, please see:
><http://www.gnu.org/software/gdb/bugs/>.
>Attaching to process 13694
>Reading symbols from /usr/pkg/java/openjdk7/bin/java...(no debugging
>symbols found)...done.
>Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done.
>Loaded symbols for /usr/lib/libz.so.1
>Reading symbols from /usr/lib/libpthread.so.1...(no debugging symbols
>found)...done.
>[New LWP 18]
>[New LWP 17]
>[New LWP 16]
>[New LWP 15]
>[New LWP 14]
>[New LWP 13]
>[New LWP 12]
>[New LWP 11]
>[New LWP 10]
>[New LWP 9]
>[New LWP 8]
>[New LWP 7]
>[New LWP 6]
>[New LWP 5]
>[New LWP 4]
>[New LWP 3]
>[New LWP 2]
>Loaded symbols for /usr/lib/libpthread.so.1
>Reading symbols from /usr/lib/libc.so.12...(no debugging symbols found)...done.
>Loaded symbols for /usr/lib/libc.so.12
>Reading symbols from /usr/lib/libgcc_s.so.1...(no debugging symbols
>found)...done.
>Loaded symbols for /usr/lib/libgcc_s.so.1
>Reading symbols from
>/usr/pkg/java/openjdk7/jre/lib/amd64/server/libjvm.so...(no debugging
>symbols found)...done.
>Loaded symbols for /usr/pkg/java/openjdk7/jre/lib/amd64/server/libjvm.so
>Reading symbols from /usr/lib/libstdc++.so.7...(no debugging symbols
>found)...done.
>Loaded symbols for /usr/lib/libstdc++.so.7
>Reading symbols from /usr/lib/libm.so.0...(no debugging symbols found)...done.
>Loaded symbols for /usr/lib/libm.so.0
>Reading symbols from
>/usr/pkg/java/openjdk7/jre/lib/amd64/libverify.so...(no debugging
>symbols found)...done.
>Loaded symbols for /usr/pkg/java/openjdk7/jre/lib/amd64/libverify.so
>Reading symbols from
>/usr/pkg/java/openjdk7/jre/lib/amd64/libjava.so...(no debugging
>symbols found)...done.
>Loaded symbols for /usr/pkg/java/openjdk7/jre/lib/amd64/libjava.so
>Reading symbols from
>/usr/pkg/java/openjdk7/jre/lib/amd64/libzip.so...(no debugging symbols
>found)...done.
>Loaded symbols for /usr/pkg/java/openjdk7/jre/lib/amd64/libzip.so
>Reading symbols from
>/usr/pkg/java/openjdk7/jre/lib/amd64/libnio.so...(no debugging symbols
>found)...done.
>Loaded symbols for /usr/pkg/java/openjdk7/jre/lib/amd64/libnio.so
>Reading symbols from
>/usr/pkg/java/openjdk7/jre/lib/amd64/libnet.so...(no debugging symbols
>found)...done.
>Loaded symbols for /usr/pkg/java/openjdk7/jre/lib/amd64/libnet.so
>Reading symbols from
>/usr/pkg/java/openjdk7/jre/lib/amd64/libmanagement.so...(no debugging
>symbols found)...done.
>Loaded symbols for /usr/pkg/java/openjdk7/jre/lib/amd64/libmanagement.so
>Reading symbols from
>/usr/pkg/java/openjdk7/jre/lib/amd64/libsunec.so...(no debugging
>symbols found)...done.
>Loaded symbols for /usr/pkg/java/openjdk7/jre/lib/amd64/libsunec.so
>Reading symbols from /usr/libexec/ld.elf_so...(no debugging symbols
>found)...done.
>Loaded symbols for /usr/libexec/ld.elf_so
>/usr/src/external/gpl3/gdb/dist/gdb/thread.c:81: internal-error:
>inferior_thread: Assertion `tp' failed.
>A problem internal to GDB has been detected,
>further debugging may prove unreliable.
>Quit this debugging session? (y or n) y
>/usr/src/external/gpl3/gdb/dist/gdb/thread.c:81: internal-error:
>inferior_thread: Assertion `tp' failed.
>A problem internal to GDB has been detected,
>further debugging may prove unreliable.
>Create a core file of GDB? (y or n) n
>sorry, pid 13694 was killed: orphaned traced process
>
>----------------------
>
>I think I have already seen this working on a 5.99 build, but I´m not
>sure. Seems related to PR/30756.

I have not seen this one, but I am sure there are more issues. What
is the inferior_ptid it is trying to find, and is it there?

christos