https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c1 Andreas Jaeger changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |schwab@suse.com InfoProvider| |per@computer.org --- Comment #1 from Andreas Jaeger 2012-11-14 14:57:44 UTC --- Please provide the output of: LD_SHOW_AUXV=1 ls LD_DEBUG=libs ls -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c3 --- Comment #3 from Andreas Jaeger 2012-11-14 15:23:11 UTC --- The Linux kernel in arch/x86/vdso/vdso32/note.S contains this: * We supply "nosegneg" as the fake capability, to indicate that we * do not like negative offsets in instructions using segment overrides, * since we implement those inefficiently. This makes it possible to * install libraries optimized to avoid those access patterns in someplace * like /lib/i686/tls/nosegneg. Note that an /etc/ld.so.conf.d/file * corresponding to the bits here is needed to make ldconfig work right. * It should contain: * hwcap 1 nosegneg * to match the mapping of bit to name that we give here. Per, could you add the hwcap line to a new file in /etc/ld.so.conf.d, run ldconfig and see whether that changes anything? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c5 --- Comment #5 from Per Jessen 2012-11-14 15:35:32 UTC --- (In reply to comment #4)

Who is producing that warning?

I am assuming it is some xen startup script/process. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c7 --- Comment #7 from Andreas Jaeger 2012-11-14 15:38:00 UTC --- Can you grep around and figure out where it comes from? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c9 --- Comment #9 from Per Jessen 2012-11-14 15:43:11 UTC --- (reply to comment 3) I created /etc/ld.so.conf.d/klop99.conf containing "hwcap 1 nosegneg", ran ldconfig and rebooted. No change I'm afraid.(In reply to comment #3) (reply to comment 4) yeah, I'll have a look. (reply to comment 5) I haven't gotten that far yet, this is dom0. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c11 --- Comment #11 from Per Jessen 2012-11-14 18:35:09 UTC --- (In reply to comment #10)

What is this xen running then?

Right now, nothing. I've just finished installing it. Maybe I'm misunderstanding your question. (In reply to comment #7)

Can you grep around and figure out where it comes from?

/usr/src/linux-3.4.11-2.16/arch/x86/kernel/fixup.c::do_fixup_4gb_segment -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c13 --- Comment #13 from Per Jessen 2012-11-14 20:48:20 UTC --- (In reply to comment #12)

/usr/src/linux-3.4.11-2.16/arch/x86/kernel/fixup.c :

Hmm, this comment seems pretty critical:

* **** NOTE **** * Issues with the binary rewriting have caused it to be removed. Instead * we rely on Xen's emulator to boot the kernel, and then print a banner * message recommending that the user disables /lib/tls.

Okay, I don't know now - when googling the warning message, the postings go back at least 6 years, so it's nothing new. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c Andreas Jaeger changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |aj@suse.com AssignedTo|aj@suse.com |schwab@suse.com -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c16 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|jbeulich@suse.com | --- Comment #16 from Jan Beulich 2012-12-03 13:16:07 UTC --- It's the wrong libc that's being used, and I don't see why this would be a problem all of the sudden (it is my understanding that we always avoided to install such libc builds by default, or had a mechanism in place to make sure the right one gets picked when running under Xen - see the kernel's arch/x86/vdso/vdso32/note.S, i.e. the vDSO should be telling the dynamic loader already). However - I don't see the point of this report in the first place: 12.2 doesn't have/support a 32-bit hypervisor, and the issue doesn't exist with a 64-bit one (even if running 32-bit guest OSes, including Dom0). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c18 Andreas Jaeger changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |WONTFIX --- Comment #18 from Andreas Jaeger 2012-12-03 15:47:49 UTC --- Marking as WONTFIX. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c20 --- Comment #20 from Andreas Jaeger 2012-12-04 09:09:03 UTC --- I made some changes for 12.2 and rearranged the code - and added a nosegneg i686 library. Might be that something was wrong there. These are the change entries: Tue Jan 3 19:42:17 UTC 2012 - aj@suse.de - Compile unwind-dw2-fde-glibc.c with -fno-strict-aliasing (patch glibc-strict-aliasing.diff) - Build on i686 a separate library for usage under Xen. ------------------------------------------------------------------- Tue Jan 3 15:36:12 UTC 2012 - aj@suse.de - Only use -mno-tls-direct-seg-refs on 32-bit x86, it's not needed on x86-64. Btw. the spec file change is just one change of a couple similar that might cause performenace penalties for every user using glibc - and we build the nosegneg library that meant building and installing the i686 glibc twice. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=789607 https://bugzilla.novell.com/show_bug.cgi?id=789607#c22 --- Comment #22 from Andreas Jaeger 2012-12-04 09:42:03 UTC --- Btw. If 12.1 works for you, I suggest to use 12.1 as hypervisor - or any other older release. My general recommendation would be to use the 64-bit Xen hypervisor but if your hardware is soo old that it does not support x86-64, consider looking at alternatives. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.