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joseh
Tux's lil' helper
Joined: 18 Dec 2003
Posts: 89
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 Posted: Sat Dec 27, 2003 7:43 pm Post subject: |
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So let me get this straight.
Can nptl be compiled on a per-program basis or do you have to first recompile glibc with nptl, then recompile any other +nptl apps?
Also, if 2.6 is required, is there a kernel option to turn on?
And how do you tell it is working correctly? (I have once compiled mplayer with +xv but since I had -X, xv support was never implemented, yet emerge, etcat, and others all claimed it was) |
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Tazmanian
Apprentice
Joined: 01 Jul 2003
Posts: 222
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| Posted: Sun Dec 28, 2003 7:44 am Post subject: |
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| joseh wrote: | So let me get this straight.
Can nptl be compiled on a per-program basis or do you have to first recompile glibc with nptl, then recompile any other +nptl apps?
Also, if 2.6 is required, is there a kernel option to turn on?
And how do you tell it is working correctly? (I have once compiled mplayer with +xv but since I had -X, xv support was never implemented, yet emerge, etcat, and others all claimed it was) |
NPTL cannot be compiled on a "per-program" basis. You simply recompile glibc with NPTL support, and anything that dynamically links against glibc (pretty much all programs that you care about) will begin using NPTL.
2.6 is required; no kernel options to turn on. Just recompile glibc (and anything that uses the nptl USE flag) and you're good to go.
To see if you have NPTL support, use `ps' or `top' to examine your process list. xmms and Java are notable apps where you can see a change. Without NPTL, you'll see multiple listings for a single instance of the program. With NPTL, you'll only see one listing. |
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joseh
Tux's lil' helper
Joined: 18 Dec 2003
Posts: 89
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| Posted: Sun Dec 28, 2003 6:16 pm Post subject: |
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Thanks!  |
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nbensa
l33t
Joined: 10 Jul 2002
Posts: 799
Location: Buenos Aires, Argentina
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| Posted: Sun Dec 28, 2003 6:49 pm Post subject: |
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| tazmanian wrote: | | To see if you have NPTL support, use `ps' or `top' to examine your process list. |
Or just :
Too bad there's a bug in nptl'ed glibc... | Code: | $ /lib/libc.so.6
Inconsistency detected by ld.so: rtld.c: 1273: dl_main: Assertion `_rtld_local._dl_rtld_map.l_prev->l_next == _rtld_local._dl_rtld_map.l_next' failed! |
I have a patch to fix this, but the guys at RedHat (http://sources.redhat.com/ml/libc-alpha/2003-10/msg00011.html) are currently discussing if it is safe to apply. Here it is anyway:
| Code: | diff -urN glibc-2.3.2.old/elf/rtld.c glibc-2.3.2/elf/rtld.c
--- glibc-2.3.2.old/elf/rtld.c 2003-01-07 15:47:35.000000000 -0300
+++ glibc-2.3.2/elf/rtld.c 2003-12-27 01:19:55.231825549 -0300
@@ -1102,19 +1102,7 @@
while (GL(dl_loaded)->l_searchlist.r_list[i] != &GL(dl_rtld_map))
++i;
GL(dl_rtld_map).l_prev = GL(dl_loaded)->l_searchlist.r_list[i - 1];
- if (__builtin_expect (mode, normal) == normal)
- GL(dl_rtld_map).l_next = (i + 1 < GL(dl_loaded)->l_searchlist.r_nlist
- ? GL(dl_loaded)->l_searchlist.r_list[i + 1]
- : NULL);
- else
- /* In trace mode there might be an invisible object (which we
- could not find) after the previous one in the search list.
- In this case it doesn't matter much where we put the
- interpreter object, so we just initialize the list pointer so
- that the assertion below holds. */
- GL(dl_rtld_map).l_next = GL(dl_rtld_map).l_prev->l_next;
-
- assert (GL(dl_rtld_map).l_prev->l_next == GL(dl_rtld_map).l_next);
+ GL(dl_rtld_map).l_next = GL(dl_rtld_map).l_prev->l_next;
GL(dl_rtld_map).l_prev->l_next = &GL(dl_rtld_map);
if (GL(dl_rtld_map).l_next != NULL)
{
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Cossins
Veteran
Joined: 21 Mar 2003
Posts: 1136
Location: Copenhagen, Denmark
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| Posted: Sun Dec 28, 2003 7:50 pm Post subject: |
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Does anyone here know how to make NFS work properly with NPTL?
It oftenly gives me the error "Stale NFS file handle" while updating something from CVS in distfiles in the imported Portage tree.
- Simon
_________________
who cares |
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Tazmanian
Apprentice
Joined: 01 Jul 2003
Posts: 222
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| Posted: Sun Dec 28, 2003 8:07 pm Post subject: |
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| nbensa wrote: | Too bad there's a bug in nptl'ed glibc... | Code: | $ /lib/libc.so.6
Inconsistency detected by ld.so: rtld.c: 1273: dl_main: Assertion `_rtld_local._dl_rtld_map.l_prev->l_next == _rtld_local._dl_rtld_map.l_next' failed! |
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Huh. I'm not seeing this.... (glibc-2.3.2-r3 +nls -pic -build +nptl)
| Code: | $ /lib/libc.so.6
GNU C Library stable release version 2.3.2, by Roland McGrath et al.
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 3.2.3 20030422 (Gentoo Linux 1.4 3.2.3-r3, propolice).
Compiled on a Linux 2.4.19 system on 2003-12-22.
Available extensions:
GNU libio by Per Bothner
crypt add-on version 2.1 by Michael Glad and others
NPTL 0.28 by Ulrich Drepper
BIND-8.2.3-T5B
NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk
Thread-local storage support included.
Report bugs using the `glibcbug' script to <bugs@gnu.org>. |
Though I don't think the line | Code: | | Compiled on a Linux 2.4.19 system on 2003-12-22. |
is accurate. |
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MighMoS
Guru
Joined: 24 Apr 2003
Posts: 416
Location: @ ~
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| Posted: Sun Dec 28, 2003 10:43 pm Post subject: |
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Woah...I'm using glibc-2.3.3_pre20031212 and recompiled both nvidia-kernel-1.0.5328 and nvidia-glx-1.0.5328 and using nvidia-glx freezes my system.
| Code: | Section "Module"
# This loads the DBE extension module.
Load "dbe" # Double buffer extension
# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
SubSection "extmod"
Option "omit xfree86-dga" # don't initialise the DGA extension
EndSubSection
# This loads the Type1 and FreeType font modules
Load "type1"
Load "speedo"
Load "freetype"
Load "xtt"
# This loads the GLX module
Load "glx"
# This loads the DRI module
Load "dri"
Load "GLcore"
EndSection |
and | Code: |
Section "Device"
Identifier "Nvidia"
Driver "nvidia"
VideoRam 65536
Option "UseEdidFreqs" "On"
Option "UseSoftEDID" "On"
Option "NvAgp" "1"
Option "RenderAccel" "1"
Option "IgnoreDisplayDevices" "DFP,TV"
Option "ConnectedMonitor" "CRT"
Option "NoLogo" "0"
Option "AGPMode" "4"
Option "AGPFastWrite" "On"
Option "EnableDepthMoves" "On"
Option "EnablePageFlip" "On"
Option "CursorShadow" "1"
EndSection |
Btw...I know I have NoLogo turned off, I like to use it to make sure that its working properly...and I just noticed I had AGPMode set to 4 as well, we both prolly followed some dufus who said something about it...  |
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nbensa
l33t
Joined: 10 Jul 2002
Posts: 799
Location: Buenos Aires, Argentina
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| Posted: Mon Dec 29, 2003 3:11 am Post subject: |
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| tazmanian wrote: | Huh. I'm not seeing this.... (glibc-2.3.2-r3 +nls -pic -build +nptl)
| Code: | $ /lib/libc.so.6
GNU C Library stable release version 2.3.2, by Roland McGrath et al.
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 3.2.3 20030422 (Gentoo Linux 1.4 3.2.3-r3, propolice).
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I'm running gcc 3.3.2 20031201 (Gentoo Linux 3.3.2-r4, propolice.) Maybe that's why I hit it  |
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Zapp!
Tux's lil' helper
Joined: 11 Oct 2002
Posts: 77
Location: Germany
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| Posted: Thu Jan 01, 2004 4:42 pm Post subject: |
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| tazmanian wrote: | Though I don't think the line | Code: | | Compiled on a Linux 2.4.19 system on 2003-12-22. |
is accurate. |
I think the version number refers to the kernel headers installed, not the kernelversion the system is actually running on.
I compiled glibc with 2.6.0 headers, but I can't post my output since I get this bug mentioned above (compiled with 3.3.2 20031201 (Gentoo Linux 3.3.2-r4, propolice)) |
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Tazmanian
Apprentice
Joined: 01 Jul 2003
Posts: 222
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| Posted: Thu Jan 01, 2004 8:42 pm Post subject: |
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| Zapp! wrote: | | tazmanian wrote: | Though I don't think the line | Code: | | Compiled on a Linux 2.4.19 system on 2003-12-22. |
is accurate. |
I think the version number refers to the kernel headers installed, not the kernelversion the system is actually running on. |
Aha! Thanks for the clarification! |
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dedeaux
Apprentice
Joined: 19 Jun 2002
Posts: 183
Location: Nairobi, Kenya
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| Posted: Fri Jan 02, 2004 8:48 am Post subject: |
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so then....
If a person adds npts to the use flag and then re-emerges glibc what happens next?
revdep-rebuild?
Or just try using it? |
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Tazmanian
Apprentice
Joined: 01 Jul 2003
Posts: 222
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| Posted: Fri Jan 02, 2004 8:52 am Post subject: |
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| dedeaux wrote: | If a person adds npts to the use flag and then re-emerges glibc what happens next?
revdep-rebuild?
Or just try using it? |
Rebuild anything else that uses the nptl flag (`emerge -epv world | grep nptl' to see). Also if you're using the nvidia-glx stuff, rebuild that too.
Then, just try using it, and rebuild as necessary. |
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dedeaux
Apprentice
Joined: 19 Jun 2002
Posts: 183
Location: Nairobi, Kenya
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| Posted: Fri Jan 02, 2004 11:59 am Post subject: |
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I ran
| Code: | | emerge -evp world|grep nptl |
and it returned nill.
I assume that implies that it would be safe to recompile glibc with nptl support for the future. But then again, if nothing uses it I will not see any advantages.
Isn't openoffice java based? If so, wouldn't that take advantage of it?
I see ppl mentioning mozilla taking advantage, yet nothing showed up on my box.
I am running nvidia though -- which I read offers mixed success. |
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Tazmanian
Apprentice
Joined: 01 Jul 2003
Posts: 222
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| Posted: Sat Jan 03, 2004 12:24 am Post subject: |
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| dedeaux wrote: | I ran
| Code: | | emerge -evp world|grep nptl |
and it returned nill. |
Odd. At the very least, it should have shown glibc.
| dedeaux wrote: | | But then again, if nothing uses it I will not see any advantages. |
The above command will print out packages that you have installed which use the nptl flag. But this doesn't mean that only these packages will benefit from NPTL. Anything that uses threads (e.g, Mozilla, Java, XMMS) should see benefit from NPTL. |
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sigmalll
Guru
Joined: 24 Aug 2003
Posts: 332
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| Posted: Sun Feb 01, 2004 6:43 pm Post subject: |
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| Tazmanian wrote: | | dedeaux wrote: | I ran
| Code: | | emerge -evp world|grep nptl |
and it returned nill. |
Odd. At the very least, it should have shown glibc.
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I noticed the same thing, seems I would have to go for a 2.3.3 pre release (good / bad idea?)
https://forums.gentoo.org/viewtopic.php?t=130582 |
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Kristleifur
n00b
Joined: 04 Jan 2004
Posts: 41
Location: Iceland
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| Posted: Sun Feb 22, 2004 4:35 pm Post subject: |
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I tried emerging the latest glibc ebuild as it has the rtld-assert-fix patch built in. It was a bit flaky. Now compiling 2.3.2-r9 with the same patch. |
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hayafirst
n00b
Joined: 25 Feb 2004
Posts: 7
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| Posted: Wed Feb 25, 2004 7:10 pm Post subject: |
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I know I am stupid. But I am really new in Gentoo. So here's my question: How may I use this patch inGentoo? Thanks |
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Kristleifur
n00b
Joined: 04 Jan 2004
Posts: 41
Location: Iceland
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| Posted: Wed Feb 25, 2004 10:42 pm Post subject: |
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| hayafirst wrote: |
I know I am stupid. But I am really new in Gentoo. So here's my question: How may I use this patch inGentoo? Thanks |
As stated in the bug report, it is included in the latest, masked 2.3.3 version of glibc. However, that version of glibc didn't work too well for me so I copied the appropriate lines out of the glibc-2.3.3_pre20040207.ebuild file and inserted them in a copy of the glibc-2.3.2-r9.ebuild file.
These are the lines:
| Code: | # Fix an assert when running libc.so from commandline, bug #34733.
cd ${S}; epatch ${FILESDIR}/2.3.2/${PN}-2.3.2-rtld-assert-fix.patch |
It's a bit of a hack, and the modified file will get overwritten on the next 'emerge sync', so you'll need a backup.
There are probably better and more proper ways of going about doing this.
The ebuild files are in /usr/portage/sys-libs/glibc. I advise against attempting this until you completely understand what you are about to do, as glibc is a very important package for the health of your system.
Furthermore, the patch is not 100% essential. As far as I could tell, the only thing that broke on my system without the patch applied was xmms, and I'm not even sure that it was due to the lack of said patch. |
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viperlin
Veteran
Joined: 15 Apr 2003
Posts: 1319
Location: UK
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| Posted: Mon Apr 19, 2004 10:57 pm Post subject: |
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mplayer segfaults for me, re-compilig without nptl
(why is everyone calling it NTPL?????) too alike to a crappy ISP (ntl) |
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meowsqueak
Veteran
Joined: 26 Aug 2003
Posts: 1549
Location: New Zealand
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| Posted: Wed Jul 07, 2004 4:08 am Post subject: |
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I tried emerging glibc-2.3.3.20040420 inside UML-2.6 (usermode linux) as I want to play around with NPTL. Unfortunately after many minutes I get the following error:
| Quote: | CPP='gcc -E -x c-header' /var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/elf/ld-linux.so.2 --library-path /var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere:/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/math:/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/elf:/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/dlfcn:/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/nss:/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/nis:/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/rt:/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/resolv:/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/crypt:/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/nptl /var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/sunrpc/rpcgen -Y ../scripts -c rpcsvc/bootparam_prot.x -o /var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/sunrpc/xbootparam_prot.T
cannot set up thread-local storage: set_thread_area failed when setting up thread-local storage
make[2]: *** [/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/buildhere/sunrpc/xbootparam_prot.stmp] Error 127
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory `/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2/sunrpc'
make[1]: *** [sunrpc/others] Error 2
make[1]: Leaving directory `/var/tmp/portage/glibc-2.3.3.20040420/work/glibc-2.3.2'
make: *** [all] Error 2
!!! ERROR: sys-libs/glibc-2.3.3.20040420 failed.
!!! Function src_compile, Line 548, Exitcode 2
!!! (no error message)
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Does anyone know what this means? Has anyone else successfully emerged glibc with nptl support inside UML?
EDIT: Apparently I need to compile glibc with nptl support from a kernel running TLS. My currently running kernel is 2.6.6-1um so I need to figure out what TLS is and how to get it into this kernel...
EDIT2: TLS is thread-local storage but still no idea how to get it into my environment. |
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yngwin
Retired Dev
Joined: 19 Dec 2002
Posts: 4572
Location: Suzhou, China
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| Posted: Wed Jul 07, 2004 11:32 am Post subject: |
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| Anyone reading this thread should really go and read this thread... |
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