Arch Linux

goverp

Member

Registered: 2018-03-03

Posts: 5

Bug report: LXDM fails with invalid op-code in librsvg-2:2.42.1-1.0

I think this is an CPU support issue, with librsvg needing SSE or SSE2, and my Pentium III a bit short.

The symptom is LXDM fails to bring up its login screen, so I can only use the machine via the console.
dmesg and journalctl both show an error message from lxdm-greeter-gt

The message is
     lxdm-greeter-gt[427] trap invalid opcode ....

I restored librsvg-2:2.40.19-1 and that fixed the problem.

I would open it on bugs.archlinux32.org, where I'm a registered user, but I don't have the authority.  (I'm a bit unsure what registration buys me if it's not the ability to open a new bug.  I could read bugs without registering!).

Thanks for any help.

andreas_baumann

Administrator

From: Zurich, Switzerland

Registered: 2017-08-10

Posts: 833

Website

Re: Bug report: LXDM fails with invalid op-code in librsvg-2:2.42.1-1.0

Mmh. lxdm-greeter-gt is in which package? I have a LXDM running on a virtual immage with Pentium II CPU and it starts..

deep42thought

Administrator

From: Jena, Germany

Registered: 2017-06-17

Posts: 617

Re: Bug report: LXDM fails with invalid op-code in librsvg-2:2.42.1-1.0

goverp: I just promoted your status on the bugtracker to "reporter". Sry about the inconvenience, but we really would like to keep the spam (which we now have in the forum) out of the bug tracker

andreas_baumann

Administrator

From: Zurich, Switzerland

Registered: 2017-08-10

Posts: 833

Website

Re: Bug report: LXDM fails with invalid op-code in librsvg-2:2.42.1-1.0

librsvg without SSE2 and qt5-declarative without SSE2 have been pushed to stable,
can you give it another try?

goverp

Member

Registered: 2018-03-03

Posts: 5

Re: Bug report: LXDM fails with invalid op-code in librsvg-2:2.42.1-1.0

Thanks for sorting my bugtracker access out.

I updated my system a couple of days ago, and find that it's consistently fixed my problem;
that's librsvg 2:2.42.3-1.2
So thanks for fixing that.  (I don't know if qt-declarative was involved, as LXDM was stopping me getting to a desktop.)

goverp

Member

Registered: 2018-03-03

Posts: 5

Re: Bug report: LXDM fails with invalid op-code in librsvg-2:2.42.1-1.0

The problem seems to be back with the latest librsvg-2.44.2 - trace from my journal below.
I've temporarily reinstalled the old librsvg 2:2.42.3-1.2 and that fixes it.

Sep 05 15:08:14 arch kernel: traps: lxdm-greeter-gt[287] trap invalid opcode ip:b57ffa50 sp:bfa551c0 error:0 in librsvg-2.so.2.44.2[b568f000+276>
Sep 05 15:08:16 arch systemd-coredump[294]: Process 287 (lxdm-greeter-gt) of user 121 dumped core.
                                           
                                            Stack trace of thread 287:
                                            #0  0x00000000b57ffa50 n/a (librsvg-2.so.2)
                                            #1  0x00000000b56a30cc n/a (librsvg-2.so.2)
                                            #2  0x00000000b56ba539 n/a (librsvg-2.so.2)
                                            #3  0x00000000b5696210 n/a (librsvg-2.so.2)
                                            #4  0x00000000b5697151 n/a (librsvg-2.so.2)
                                            #5  0x00000000b54dfa5a xmlParseStartTag (libxml2.so.2)
                                            #6  0x00000000b54e6c13 n/a (libxml2.so.2)
                                            #7  0x00000000b54e7a73 xmlParseChunk (libxml2.so.2)
                                            #8  0x00000000b56973c5 n/a (librsvg-2.so.2)
                                            #9  0x00000000b5ac11fc n/a (libpixbufloader-svg.so)
                                            #10 0x00000000b6fec95d n/a (libgdk_pixbuf-2.0.so.0)
                                            #11 0x00000000b6ff96de gdk_pixbuf_new_from_file (libgdk_pixbuf-2.0.so.0)
                                            #12 0x00000000b770fe84 n/a (libpixmap.so)
                                            #13 0x00000000b6e69646 g_cache_insert (libglib-2.0.so.0)
                                            #14 0x00000000b7710d5e n/a (libpixmap.so)
                                            #15 0x00000000b7710e3b n/a (libpixmap.so)
                                            #16 0x00000000b770dbea n/a (libpixmap.so)
                                            #17 0x00000000b770e795 n/a (libpixmap.so)
                                            #18 0x00000000b73224de n/a (libgtk-x11-2.0.so.0)
                                            #19 0x00000000b7322542 n/a (libgtk-x11-2.0.so.0)
                                            #20 0x00000000b71eea31 n/a (libgtk-x11-2.0.so.0)
                                            #21 0x00000000b6f906ce g_closure_invoke (libgobject-2.0.so.0)
                                            #22 0x00000000b6fa33ae n/a (libgobject-2.0.so.0)
                                            #23 0x00000000b6fac75f g_signal_emit_valist (libgobject-2.0.so.0)
                                            #24 0x00000000b6fad564 g_signal_emit (libgobject-2.0.so.0)

andreas_baumann

Administrator

From: Zurich, Switzerland

Registered: 2017-08-10

Posts: 833

Website

Re: Bug report: LXDM fails with invalid op-code in librsvg-2:2.42.1-1.0

There were various issues around rust and librsvg to compile without SSE2 instructions. Should
be fixed now in stable.

emgaron

Member

Registered: 2018-03-31

Posts: 22

Re: Bug report: LXDM fails with invalid op-code in librsvg-2:2.42.1-1.0

There were various issues around rust and librsvg to compile without SSE2 instructions. Should
be fixed now in stable.

Yes! At least it is now on the old BookPC i810 I'm currently installing on. I was already considering to use xdm... Thanks for fixing this!

andreas_baumann

Administrator

From: Zurich, Switzerland

Registered: 2017-08-10

Posts: 833

Website

Re: Bug report: LXDM fails with invalid op-code in librsvg-2:2.42.1-1.0

You're welcome. :-)