plymouthd assert failure: plymouthd: ./plugin.c:540: map_to_device: Assertion `head->size > 0' failed.

[Paul Hinchberger III]

Binary package hint: plymouth

This happened after I applied the steps outlined here on my own blog: http://wp.me/p2q9M-nC -- in a nut shell, it uses v86d to set a video mode.

I had this crash on the first boot immediately after following the steps outlined above. A second and third boot gave no crash, so it might have been a one-time thing.

This isn't a show-stopper bug. It appears not to bring anything down with it, and everything else seems to function just fine.

Using v86d worked fine for 10.04. It solved two problems:
* Fallback text mode used / No Ubuntu logo on startup
* Console text starting near the bottom-right corner
    * Text would wrap horizontally
    * Text would not wrap vertically -- only 5-or-so lines visible.

Under Ubuntu 11.04, it seems it *might* work.
* Ubuntu logo didn't appear on startup
   * It does appear on shutdown
   * Doesn't appear to fall back to text mode at least.
* Consoles are now properly displayed.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: plymouth 0.8.2-2ubuntu18
ProcVersionSignature: Ubuntu 2.6.38-7.36-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
AssertionMessage: plymouthd: ./plugin.c:540: map_to_device: Assertion `head->size > 0' failed.
Date: Mon Mar 21 06:26:33 2011
DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
ExecutablePath: /sbin/plymouthd
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110301.7)
MachineType: ECS IC780M-A2
ProcCmdline: /sbin/plymouthd --mode=boot --attach-to-session
ProcEnviron: PATH=(custom, no user)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=391859ce-e8cb-4e1c-bc67-b6eb0283f11c ro quiet splash nomodeset video=uvesafb:mode_option=800x600-24,mtrr=3,scroll=ywrap vt.handoff=7
Signal: 6
SourcePackage: plymouth
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/plymouth/renderers/frame-buffer.so
 ply_renderer_flush_head () from /lib/libply-splash-core.so.2
TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
Title: plymouthd assert failure: plymouthd: ./plugin.c:540: map_to_device: Assertion `head->size > 0' failed.
UpgradeStatus: Upgraded to natty on 2011-03-10 (11 days ago)
UserGroups:

dmi.bios.date: 11/18/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080015
dmi.board.name: IC780M-A2
dmi.board.vendor: ECS
dmi.board.version: 1.0
dmi.chassis.type: 3
dmi.chassis.vendor: ECS
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd11/18/2009:svnECS:pnIC780M-A2:pvr1.0:rvnECS:rnIC780M-A2:rvr1.0:cvnECS:ct3:cvr:
dmi.product.name: IC780M-A2
dmi.product.version: 1.0
dmi.sys.vendor: ECS

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #708517, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.