239081 - Save Image As hangs the process

Status: RESOLVED DUPLICATE of bug 237947

(SeaMonkey :: General, defect)

Description

[Jim Knick]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316

Attempting to save any image using the Save Image As popup menu causes the
process to hang.  No save as dialog box comes up.


Reproducible: Always
Steps to Reproduce:
1. Go to www.google.com
2. Right mouse click on the main Google graphic
3. Choose Save Image As from the popup menu.

Actual Results:  
Afte selecting Save Image As, my cpu meter pegs (mozilla is doing a 'sit &
spin').  Mozilla is hung and no longer accepts any input in any of its windows.

Expected Results:  
Save Image As should have displayed a Save As dialog box.

I attached the ddd debugger to the hung process and saw the following stack
trace.  As notede below, I continued and re-interrupted a couple of times.

#0  0x404b6600 in _init () from /storage/views/knick/mozilla/libxpcom.so
#1  0x404eb152 in NS_CopyUnicodeToNative(nsAString const&, nsACString&) () from
/storage/views/knick/mozilla/libxpcom.so
#2  0x404ef6bc in nsLocalFile::AppendRelativePath(nsAString const&) () from
/storage/views/knick/mozilla/libxpcom.so
#3  0x417d2e03 in NSGetModule () from
/storage/views/knick/mozilla/components/libdocshell.so
#4  0x417d41bc in NSGetModule () from
/storage/views/knick/mozilla/components/libdocshell.so
#5  0x417d45a9 in NSGetModule () from
/storage/views/knick/mozilla/components/libdocshell.so
#6  0x417ca3cc in NSGetModule () from
/storage/views/knick/mozilla/components/libdocshell.so
#7  0x4051a17f in XPTC_InvokeByIndex () from
/storage/views/knick/mozilla/libxpcom.so
#8  0x405da91a in NSGetModule () from
/storage/views/knick/mozilla/components/libxpconnect.so
#9  0x405e1a88 in NSGetModule () from
/storage/views/knick/mozilla/components/libxpconnect.so
#10 0x400513a7 in js_Invoke () from /storage/views/knick/mozilla/libmozjs.so
#11 0x40059f9c in js_Interpret () from /storage/views/knick/mozilla/libmozjs.so
#12 0x400514a3 in js_Invoke () from /storage/views/knick/mozilla/libmozjs.so
#13 0x405d57da in NSGetModule () from
/storage/views/knick/mozilla/components/libxpconnect.so
#14 0x405d12a1 in NSGetModule () from
/storage/views/knick/mozilla/components/libxpconnect.so
#15 0x4051a307 in XPTC_InvokeByIndex () from
/storage/views/knick/mozilla/libxpcom.so
#16 0x406391ba in NSGetModule () from
/storage/views/knick/mozilla/components/libnecko.so
#17 0x40639875 in NSGetModule () from
/storage/views/knick/mozilla/components/libnecko.so
#18 0x406a5663 in NSGetModule () from
/storage/views/knick/mozilla/components/libnecko.so
#19 0x406ad66c in NSGetModule () from
/storage/views/knick/mozilla/components/libnecko.so
#20 0x4061e27f in NSGetModule () from
/storage/views/knick/mozilla/components/libnecko.so
#21 0x4061e215 in NSGetModule () from
/storage/views/knick/mozilla/components/libnecko.so
#22 0x404e7171 in nsInputStreamReadyEvent::EventHandler(PLEvent*) () from
/storage/views/knick/mozilla/libxpcom.so
#23 0x404fe2c7 in PL_HandleEvent () from /storage/views/knick/mozilla/libxpcom.so
#24 0x404fe7c1 in PL_ProcessEventsBeforeID () from
/storage/views/knick/mozilla/libxpcom.so
#25 0x415dee86 in parent_class_set_focus () from
/storage/views/knick/mozilla/components/libwidget_gtk.so
#26 0x404cfea1 in nsVoidArray::EnumerateForwards(int (*)(void*, void*), void*)
() from /storage/views/knick/mozilla/libxpcom.so
#27 0x415deede in parent_class_set_focus () from
/storage/views/knick/mozilla/components/libwidget_gtk.so
#28 0x415e79db in parent_class_set_focus () from
/storage/views/knick/mozilla/components/libwidget_gtk.so
#29 0x40259f15 in gdk_wm_protocols_filter () from /usr/lib/libgdk-1.2.so.0
#30 0x4028d9ae in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#31 0x4028de89 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#32 0x4028e124 in g_main_run () from /usr/lib/libglib-1.2.so.0
#33 0x4019927f in gtk_main () from /usr/lib/libgtk-1.2.so.0
#34 0x415deb46 in parent_class_set_focus () from
/storage/views/knick/mozilla/components/libwidget_gtk.so
#35 0x415be9f4 in fullsoft_copyright () from
/storage/views/knick/mozilla/components/libnsappshell.so
#36 0x08056c3b in getCountry(nsAString const&, nsAString&) ()
#37 0x08057760 in main ()
#38 0x42015574 in __libc_start_main () from /lib/tls/libc.so.6

Other partial stack traces after having continued and then 
re-interrupted the hung program.  Looks like we're always 
downstream from AppendRelativePath:
#0  0x4164d5a4 in gconv () from /usr/lib/gconv/UTF-16.so
#1  0x4164ccff in gconv () from /usr/lib/gconv/UTF-16.so
#2  0x420168ea in __gconv () from /lib/tls/libc.so.6
#3  0x42015efa in iconv () from /lib/tls/libc.so.6
#4  0x404eae9b in nsNativeCharsetConverter::UnicodeToNative(unsigned short
const**, unsigned*, char**, unsigned*) () from
/storage/views/knick/mozilla/libxpcom.so
#5  0x404eb152 in NS_CopyUnicodeToNative(nsAString const&, nsACString&) () from
/storage/views/knick/mozilla/libxpcom.so
#6  0x404ef6bc in nsLocalFile::AppendRelativePath(nsAString const&) () from
/storage/views/knick/mozilla/libxpcom.so

#0  0x404eb178 in NS_CopyUnicodeToNative(nsAString const&, nsACString&) () from
/storage/views/knick/mozilla/libxpcom.so
#1  0x404ef6bc in nsLocalFile::AppendRelativePath(nsAString const&) () from

#0  0x08060e40 in nsCSubstring::ReplacePrep(unsigned, unsigned, unsigned) ()
#1  0x0805aa4f in nsACString::Append(char const*, unsigned) ()
#2  0x404eb1a5 in NS_CopyUnicodeToNative(nsAString const&, nsACString&) () from
/storage/views/knick/mozilla/libxpcom.so
#3  0x404ef6bc in nsLocalFile::AppendRelativePath(nsAString const&) () from
/storage/views/knick/mozilla/libxpcom.so

Comment 1

[Frank Wein [:mcsmurf]]

How long did you wait? It sometimes takes 10-20 for the Save Dialog to appear
because of many entrys in download manager (downloads.rdf). If you delete the
downloads.rdf file, does this still happen?

Comment 2

[Jim Knick]

I waited over 1 minute on my 3GHz box.  My  downloads.rdf file had a size of 
784307.  Even after removing my downloads.rdf, the problem persisted.

Comment 3

[Christian :Biesinger (don't email me, ping me on IRC)]

*** This bug has been marked as a duplicate of 237947 ***

Comment 4

[Jim Knick]

I have verified that the problem I encountered is indeed related to the .mailcap
file as was bug 237947.
If I removed all "image/" entries from my .mailcap file, I can perform the Save
Image As operation successfully.
Thank you for the very quick diagnosis.