517662 - Crash through nsMsgDBView::RemoveRows when opening newsgroup

Status: RESOLVED DUPLICATE of bug 524266

(MailNews Core :: Backend, defect)

Description

[Peter Weilbacher]

I see this right now with Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.9.1.4pre) Gecko/20090918 SeaMonkey/2.0pre but I have had similar problems with SeaMonkey on both OS/2 and Linux (x64_86) since about July.

At some point a newsgroup somehow gets corrupted and whenever I try to open it, SM crashes. I can then fully reproduce it on every try. I now made an OS/2 debug build and caught a call stack, the top of which is

    Function                           | Part
------------------------------------+--------------------------
 0x1DE73F07                         | libc063.dll:1
 nsTArray<unsigned>::RemoveElementsA| NSMSGFOLDERCOMPACTOR.CPP
 nsMsgDBView::RemoveRows(unsigned, i| NSMSGDBVIEW.CPP
 nsMsgDBView::CollapseByIndex(unsign| NSMSGDBVIEW.CPP
 nsMsgThreadedDBView::MoveThreadAt(u| NSMSGTHREADEDDBVIEW.CPP
 nsMsgThreadedDBView::OnNewHeader(ns| NSMSGTHREADEDDBVIEW.CPP
 nsMsgDBView::OnHdrAdded(nsIMsgDBHdr| NSMSGDBVIEW.CPP
 nsMsgDatabase::NotifyHdrAddedAll(ns| NSMSGDATABASE.CPP
 nsMsgDatabase::AddNewHdrToDB(nsIMsg| NSMSGDATABASE.CPP

If I unsubscribe the problematic newsgroup by removing the respective line from the newsrc file and resubscribe to it from SM, the problem is always gone.

For the group that is currently problematic the entry in <profiledir>\News\news.Individual.de.rc is
   comp.os.os2.apps: 1-329307

Comment 1

[Wayne Mery (:wsmwk)]

please file crash bugs with sev=critical :)
Peter, do you still see this with latest nightly?
xref bug 505960

Comment 2

[Peter Weilbacher]

Now with Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.9.1.5pre) Gecko/20091014 SeaMonkey/2.0pre

I currently don't see it any more, but that doesn't mean that it cannot come back any time. Part of the "solution" probably was that the low-volume newsgroup where I had the problem (and could reproduce it for several days) has gotten new posts in the last weeks.

Comment 3

[Wayne Mery (:wsmwk)]

dupe of  Bug 505960 crash [@nsMsgDBView::RemoveRows(unsigned int, int) ??

Comment 4

[Wayne Mery (:wsmwk)]

duping to bug 524266, which is what bug 505960 got duped to.
if you see this in the most recent update of SM 2.0.1 (irrc) please reopen the bug