Bug#719802: ia64, Iceweasel-17, JS needs ptrs have their high 17 bits cleared

[Stephan Schreiber]

retitle 719802 ia64, Iceweasel-17, JS needs ptrs have their high 17  
bits cleared
reassign 719802 src:iceweasel
severity 719802 grave
tags 719802 + patch
thanks


ia64.

I experienced it, too.
An assertion
     GLib-CRITICAL **: g_slice_set_config: assertion `sys_page_size ==  
0' failed
Iceweasel 17esr crashed immediately before it shows its window on ia64.
Furthermore the testsuite sometimes crashed when I built the unpatched  
iceweasel 17.0.8esr-2 on ia64.

The failing assertion is *not* related with the crash. I didn't care about it.
The reason for the crash is a known one: The Mozilla JS engine needs  
pointers have their high 17 bits cleared because it would break a  
variant data type which the engine uses.

The patch doesn't fix the failing assertion. It will still occur, but  
the crash is gone.
The patch is also important for the libmozjs17d package which will be  
used by gnome-shell soon.

The patch is similar to some bugfixes of earlier versions:
bug#696041 ia64 (Itanium) Mozilla JS engine needs pointers have their  
high 17 bits cleared
bug#659186 gnome-shell: Segmentation fault in libmozjs185.so.1.0 at startup



Noam Postavsky wrote:
> I'm having the same symptoms (same assertion failure and crash at
> startup) on amd64.
The amd64 arch isn't affected by the ia64 crash which this patch  
addresses, believe me ;-)
I suggest filing a separate bug report for the crash on amd64.


Cheers
Stephan

-------------- next part --------------
A non-text attachment was scrubbed...
Name: fix-map-pages-on-ia64.patch
Type: application/octet-stream
Size: 3437 bytes
Desc: fix-map-pages-on-ia64.patch
URL: <http://lists.alioth.debian.org/pipermail/pkg-mozilla-maintainers/attachments/20130828/bfe92501/attachment.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: static-str-in-mmem-on-ia64.patch
Type: application/octet-stream
Size: 10710 bytes
Desc: static-str-in-mmem-on-ia64.patch
URL: <http://lists.alioth.debian.org/pipermail/pkg-mozilla-maintainers/attachments/20130828/bfe92501/attachment-0001.obj>