Bug 11492

Summary: Bus error (SIGBUS recived)
Product: swfdec Reporter: YangH <gnomecn>
Component: libraryAssignee: swfdec ml <swfdec>
Status: RESOLVED FIXED QA Contact: swfdec ml <swfdec>
Severity: critical    
Priority: medium CC: otte
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: don't do unaligned accesses

Description YangH 2007-07-07 02:57:18 UTC 
Platfor: MIPSEL (godson2e cpu from china)

swfdec 0.45
swfdec-mozilla 0.45

$> gdb swfplayer

(gdb) r ~/weeks-demo.swf
Starting program: /root/swfdec-0.4.5/player/.libs/swfplay ~/weeks-demo.swf
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 14282)]

Program received signal SIGBUS, Bus error.
[Switching to Thread 16384 (LWP 14282)]
swfdec_bits_get_float (b=0x7f047920) at swfdec_bits.c:316
warning: Source file is more recent than executable.
316     }
(gdb) bt
#0  swfdec_bits_get_float (b=0x7f047920) at swfdec_bits.c:316
#1  0x2ab94900 in swfdec_action_push (cx=0x46a800, action=<value optimized out>,
    data=<value optimized out>, len=<value optimized out>) at swfdec_script.c:582
#2  0x2ab9a264 in swfdec_script_interpret (script=0x48be10, cx=0x46a800, rval=0x7f047a24)
    at swfdec_script.c:3002
#3  0x2ab9a8dc in swfdec_script_execute (script=0x48be10, scriptable=0x47f060)
    at swfdec_script.c:3145
#4  0x2ab8c1a0 in swfdec_player_perform_actions (player=0x46b058) at swfdec_player.c:281
#5  0x2ab7c230 in swfdec_loader_parse (loader=0x467e60) at swfdec_loader.c:392
#6  0x00402980 in main (argc=2, argv=0x7f047cb4) at swfplay.c:137
(gdb) q
Comment 1 Benjamin Otte 2007-07-11 07:34:00 UTC 
Uh yeah, at some point I seem to have stopped caring about unaligned accesses. Try the attached patch.
Comment 2 Benjamin Otte 2007-07-11 07:34:39 UTC 
Created attachment 10668 [details] [review]
don't do unaligned accesses
Comment 3 Benjamin Close 2008-01-11 02:39:02 UTC 
Bugzilla Upgrade Mass Bug Change

NEEDSINFO state was removed in Bugzilla 3.x, reopening any bugs previously listed as NEEDSINFO.

  - benjsc
    fd.o Wrangler
Comment 4 Benjamin Otte 2008-01-28 02:40:08 UTC 
Should be fixed as Swfdec has been tested on unaligned access arm now.

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