plasma-desktop crashed on start -- with SIGSEGV in QMap<QPair<int, int>, QGridLayoutMultiCellData>::constBegin()

[dendraya]

Binary package hint: kdebase-workspace

plasma crashes on log-in with no report... if started via terminal, i get this bug report.

ProblemType: Crash
Architecture: amd64
Date: Sat Sep 26 11:09:29 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/plasma-desktop
Package: kdebase-workspace-bin 4:4.3.1-0ubuntu10
ProcCmdline: plasma-desktop
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 LANGUAGE=
ProcVersionSignature: Ubuntu 2.6.31-10.35-generic
SegvAnalysis:
 Segfault happened at: 0x7feb95c91e02 <_ZN18QGridLayoutRowData20distributeMultiCellsEv+50>: mov %rdx,0x28(%rsp)
 PC (0x7feb95c91e02) ok
 source "%rdx" ok
 destination "0x28(%rsp)" (0x7fff51c3cfd8) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: kdebase-workspace
StacktraceTop:
 QMap<QPair<int, int>, QGridLayoutMultiCellData>::constBegin (
 QGridLayoutRowData::distributeMultiCells (this=0xf2db38)
 QGridLayoutEngine::ensureColumnAndRowData (
 QGridLayoutEngine::sizeHint (this=0xf2db38,
 QGraphicsGridLayout::sizeHint (
Title: plasma-desktop crashed with SIGSEGV in QMap<QPair<int, int>, QGridLayoutMultiCellData>::constBegin()
Uname: Linux 2.6.31-10-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:QGridLayoutRowData::distributeMultiCells (this=0xf2db38)
QGridLayoutEngine::ensureColumnAndRowData (
QGridLayoutEngine::sizeHint (this=0xf2db38,
QGraphicsGridLayout::sizeHint (
QGraphicsLayoutItemPrivate::effectiveSizeHints (

[Jonathan Thomas (echidnaman)]

Upstream report: https://bugs.kde.org/show_bug.cgi?id=202890
Seems to be a libplasma issue.