21123 - [DOGFOOD] nsString crash when trying to view source

Status: VERIFIED DUPLICATE of bug 20691

(Core :: XPCOM, defect, P3)

Description

[Scott MacGregor]

This symptom was initially used to re-open Bug #20700. I decided to open another
bug to track this.

Rick, on linux, if I bring up mozilla.org and then try to view source I crash in
nsStr::Truncate.

The code that causes the nsString to be called is in nsWebshell and it looks
like the following:

mURL = urlSpec;

mURL is an nsCString. urlSpec is an nsXPIDLCString.

urlSpec = "chrome://related/content/related-panel.xul"
the stack trace looks like:
nsString::Assign ("chrome://...", -1)
nsStr::Truncate ( , offfset = 0)
AddNullTerminator
and we crash on the call to AddNullTerminator

Marking this as dogfood since the bug it came from was a PDT / dogfood bug.

Comment 1

[Scott MacGregor]

Sorry Rick, I see you already have a bug with this same stack trace and it now
belongs to rick potts. I'll mark this as a duplicate.

*** This bug has been marked as a duplicate of 20691 ***

Comment 2

[Alan S. Jones]

Verified as dupe of 20691
 View source just opens toolbar-less window with the HTML rendering

Comment 3

[Pulsebot]

Pushed by ffxbld-merge:
https://hg.mozilla.org/releases/mozilla-beta/rev/da6b79756d22
[fenix] Rollback Flank to v21.08.1 (https://github.com/mozilla-mobile/fenix/pull/21123)