FS#14481 - [glibc-2.9-5 (testing)] breaks gdb

Attached to Project: Arch Linux
Opened by Georg Grabler (STiAT) - Monday, 27 April 2009, 23:23 GMT
Last edited by Allan McRae (Allan) - Wednesday, 29 April 2009, 10:55 GMT
Task Type Bug Report
Category Packages: Testing
Status Closed
Assigned To Allan McRae (Allan)
Architecture i686
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
The new version of gdb in testing breaks gdb.
It will throw the error
find_new_threads_callback: cannot get thread info: generic error
and not start the application at all.

Additional info:
* glibc-2.9-5


Steps to reproduce:
Install glibc-2.9-5 and run in example
$ gdb qgit
(gdb) r

This will throw the errors, the application will not appear, no debugging will be possible.

I downgraded to glibc-2.9-4 (binutils-2.19.1-1) - and it works properly again.

The gdb developers meant it's about stripping symbols out of libpthread - i can not confirm this by 100 %, but it pointed me in the right direction (glibc).
This task depends upon

Closed by  Allan McRae (Allan)
Wednesday, 29 April 2009, 10:55 GMT
Reason for closing:  Fixed
Additional comments about closing:  Fixed in 2.9-7. Really...
Comment by Gerardo Exequiel Pozzi (djgera) - Tuesday, 28 April 2009, 00:08 GMT
Nop, I tested to rebuild glibc but without stripping symbols and any program that uses threads always shows this error under gdb.

Can test for example with /usr/bin/chattr that are part of [core]

Comment by Gerardo Exequiel Pozzi (djgera) - Tuesday, 28 April 2009, 00:15 GMT
Solution here: https://bugzilla.redhat.com/show_bug.cgi?id=487212, testing rebuilding .....
Comment by Gerardo Exequiel Pozzi (djgera) - Tuesday, 28 April 2009, 00:28 GMT
Solved!

sed -i 's#static \(bool __nptl_initial_report_events\)#\1#' nptl/init.c
Comment by Allan McRae (Allan) - Tuesday, 28 April 2009, 00:48 GMT
Thanks for tracking this down. It is always good to wake up to a pre solved bug! I will do the rebuild soon.
Comment by Gerardo Exequiel Pozzi (djgera) - Tuesday, 28 April 2009, 00:53 GMT
You are welcome :)

Allan wait a minute...

there are a commit from truck with not remove "static", just add __attributed_used__, i will test it with 2.9_branch...
http://cvs.fedora.redhat.com/viewvc/devel/glibc/thread_db.patch?view=co
Comment by Gerardo Exequiel Pozzi (djgera) - Tuesday, 28 April 2009, 01:08 GMT
Confirmed, works fine http://cvs.fedora.redhat.com/viewvc/devel/glibc/thread_db.patch?view=co ;)
Comment by Georg Grabler (STiAT) - Tuesday, 28 April 2009, 09:09 GMT
Confirmed, works fine here using glibc from testing abs including this patch.

Thanks for helping to track this down so fast djgera, you did a great job finding all this information.
Thanks to Allan as well for the fast response.
Comment by Georg Grabler (STiAT) - Tuesday, 28 April 2009, 18:21 GMT
  • Field changed: Percent Complete (100% → 0%)
Not fixed, you've a typo in pkgbuild.
patch -Np1 -i ${srcdir}/glibc-patches/glibc-2.9-libhread_db.patch

should be

patch -Np1 -i ${srcdir}/glibc-patches/glibc-2.9-libthread_db.patch || return 1

-> libthread not libhread (return 1 to recognize when it fails to patch).

Same error as before ;-)
Comment by Allan McRae (Allan) - Tuesday, 28 April 2009, 20:45 GMT
Crap! I tested the fix then rebuild in a clean chroot... no idea how that happened. I'll rebuild again tonight.
Comment by Georg Grabler (STiAT) - Tuesday, 28 April 2009, 22:26 GMT
Hehe Allan, happens ;-) .. ask your boss for some typo lessons as I do every day ;-)

Thanks anyway for being that responsive.

// G | STi

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