[MPlayer-dev-eng] sig11 in -vo x11 - probably bug in SwScaler
Arpi
arpi at thot.banki.hu
Sun Mar 31 12:37:28 CEST 2002
Hi,
I've reported it already earlier, that -vo x11 randomly crashes when
resizing window (keep pressing key 'f' for few seconds - easiest way to
reproduce here).
Now, while tracing a bug in RLE codec, i've got reproducable sig11 again,
now with no scaling but in the scaler doing 24->32bpp bgr conversion.
It seems that in 24bpp modes it reads more than the allocated image, maybe
reads few bytes (lines?) too lot.
I'm also started using njamd-0.8.1, a very nice (and working) memory
debugger. It somehow locks memory areas and tell me when teh code
reads/writes more than the allocated size or if it tries to free/realloc
unallocated memory. I suggest using it for testing, catched several strange
random crashes yesterday.
MPlayer used to be stable, but nowdays even I got random sig11s
everywhere... it's not good... especially as we're getting closer to
the big bumm - the first gpl release. it may be v1.0, maybe we should
release some 0.9x first, but I think we've done the planned feature list for
1.0 so no more sense of delaying it... so don't make big-bug-pack.
now the logs, first from njamd, second is the usual gdb stuff:
MPlayer CVS-020331-04:01-2.95.3 (C) 2000-2002 Arpad Gereoffy (see DOCS!)
CPUflags: Type: 8 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
CPU vendor name: GenuineIntel max cpuid level: 2
CPU: Intel Pentium 4 Xeon Foster (Type: 8, Stepping: 2)
extended cpuid-level: 4
Testing OS support for SSE... yes.
Testing OS support for SSE unmasked exceptions... yes.
Tests of OS support for SSE passed.
Compiled with RUNTIME CPU Detection - warning, it's not optimal! To get best performance, recompile mplayer from sources with --disable-runtime-cpudetection
CommandLine:Reading /root/.mplayer/codecs.conf: 30 audio & 80 video codecs
get_path('font/font.desc') -> '/root/.mplayer/font/font.desc'
'Logo-RLE(best).avi' '-vo' 'x11' '-v'
Using Linux's hardware RTC timing (1024Hz)
Font /root/.mplayer/font/font.desc loaded successfully! (206 chars)
get_path('input.conf') -> '/root/.mplayer/input.conf'
Can't open input config file /root/.mplayer/input.conf : No such file or directory
Falling back on default (hardcoded) config
Playing Logo-RLE(best).avi
Can't open IFO file: No such file or directory
File size is 98272 bytes
Not an URL!
Detected AVI file format!
==> Found video stream: 0
list_end=0x4D4
======= AVI Header =======
us/frame: 66666 (fps=15.000)
max bytes/sec: 0
padding: 0
MainAVIHeader.dwFlags: (16) HAS_INDEX
frames total: 35 initial: 0
streams: 1
Suggested BufferSize: 32768
Size: 64 x 64
list_end=0x4D4
found 'bih', 1064 bytes of 40
======= STREAM Header =======
Type: vids FCC: RLE (20454C52)
Flags: 0
Priority: 0 Language: 0
InitialFrames: 0
Rate: 15/1 = 15.000
Start: 0 Len: 35
Suggested BufferSize: 4096
Quality 10000
Sample size: 0
Broken chunk? chunksize=2840 (id=JUNK)
======= VIDEO Format ======
biSize 1064
biWidth 64
biHeight 64
biPlanes 1
biBitCount 8
biCompression 1=''
biSizeImage 8192
===========================
Found movie at 0x1000 - 0x17C66
list_end=0x17C66
Reading INDEX block, 35 chunks for 35 frames
Broken chunk? chunksize=0 (id=idx1)
Reading INDEX block, 35 chunks for 35 frames
AVI index offset: 0xFFC (movi=0x1000 idx0=0x4 idx1=0xB92)
list_end=0x17F6C
list_end=0x17FE0
Auto-selected AVI video ID = 0
AVI_NI: No Audio stream found... ->nosound
AVI: Searching for audio stream (id:-1)
AVI: No Audio stream found... ->nosound
AVI video length=93014
VIDEO: [] 64x64 8bpp 15.00 fps 318.9 kbps (38.9 kbyte/s)
[V] filefmt:3 fourcc:0x1 size:64x64 fps:15.00 ftime:=0.0667
get_path('sub/') -> '/root/.mplayer/sub/'
==========================================================================
X11 opening display: :0.0
vo: X11 color mask: FFFF (R:F800 G:7E0 B:1F)
vo: X11 running at 1024x768 with depth 16 and 16 bits/pixel (":0.0" => local display)
VDec: vo config request - 64 x 64, BGR 24-bit
Opening Video Decoder: [msrle] RLE Video decoder
Movie-Aspect is undefined - no prescaling applied.
VO: [x11] 64x64 => 64x64 BGR 24-bit
VO: Description: X11 ( XImage/Shm )
VO: Author: Aaron Holtzman <aholtzma at ess.engr.uvic.ca>
video_out->init(64x64->64x64,flags=0,'MPlayer',0x42475218)
SwScaler: BICUBIC scaler, from BGR 24-bit to dithered BGR 16-bit using MMX2
Detected video codec: [msrle] drv:9 prio:0 (Microsoft RLE)
Sharing memory.
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 4 -> 4
SwScaler: using 4-tap MMX scaler for horizontal luminance scaling
SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling
SwScaler: using n-tap MMX scaler for vertical scaling (BGR)
SwScaler: using MMX YV12->BGR16 Converter
SwScaler: 64x64 -> 64x64
==========================================================================
Audio: no sound!!!
Freeing 0 unused audio chunks
Start playing...
*** Allocating mp_image_t, 64x64x24bpp RGB packed, 12288 bytes
Segmentation fault (caught by NJAMD)
called from mplayer(vo_vm_close+0x1289)[0x8086581]
called from mplayer(vo_vm_close+0x1330)[0x8086628]
called from mplayer(decode_video+0xcc)[0x809f0e4]
called from mplayer(main+0x2413)[0x8063edf]
called from /lib/libc.so.6(__libc_start_main+0xbb)[0x403e12eb]
called from mplayer(_start+0x21)[0x8061271]
Cause of fault: Access to protected region
Address of fault is 0x4225d000
0x42259000-0x4225e000: Aligned len 12288
Allocation callstack:
called from mplayer(mpcodecs_get_image+0x33e)[0x809fa2a]
called from mplayer(mpcodecs_get_image+0x1d44)[0x80a1430]
called from mplayer(decode_video+0x36)[0x809f04e]
Not Freed
MPlayer interrupted by signal 11 in module: decode_video
- MPlayer crashed by bad usage of CPU/FPU/RAM. Recompile MPlayer with --enable-debug and make a 'gdb' backtrace and disassembly. For details, see DOCS/bugreports.html section 5.b.
- MPlayer crashed. This shouldn't happen. It can be a bug in the MPlayer code _or_ in your drivers _or_ in your gcc version. If you think it's MPlayer's fault, please read DOCS/bugreports.html and follow instructions there. We can't and won't help unless you provide these informations when reporting a possible bug.
*** free_stream() called ***
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This GDB was configured as "i386-slackware-linux"...
(gdb) run Logo-RLE\(best\).avi -v -vo x11
Starting program: /usr/local/bin/mplayer Logo-RLE\(best\).avi -v -vo x11
MPlayer CVS-020331-04:01-2.95.3 (C) 2000-2002 Arpad Gereoffy (see DOCS!)
CPUflags: Type: 8 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
CPU vendor name: GenuineIntel max cpuid level: 2
CPU: Intel Pentium 4 Xeon Foster (Type: 8, Stepping: 2)
extended cpuid-level: 4
Testing OS support for SSE... yes.
Testing OS support for SSE unmasked exceptions... yes.
Tests of OS support for SSE passed.
Compiled with RUNTIME CPU Detection - warning, it's not optimal! To get best performance, recompile mplayer from sources with --disable-runtime-cpudetection
CommandLine:Reading /root/.mplayer/codecs.conf: 30 audio & 80 video codecs
get_path('font/font.desc') -> '/root/.mplayer/font/font.desc'
'Logo-RLE(best).avi' '-v' '-vo' 'x11'
Using Linux's hardware RTC timing (1024Hz)
Font /root/.mplayer/font/font.desc loaded successfully! (206 chars)
get_path('input.conf') -> '/root/.mplayer/input.conf'
Can't open input config file /root/.mplayer/input.conf : No such file or directory
Falling back on default (hardcoded) config
Playing Logo-RLE(best).avi
Can't open IFO file: No such file or directory
File size is 98272 bytes
Not an URL!
Detected AVI file format!
==> Found video stream: 0
list_end=0x4D4
======= AVI Header =======
us/frame: 66666 (fps=15.000)
max bytes/sec: 0
padding: 0
MainAVIHeader.dwFlags: (16) HAS_INDEX
frames total: 35 initial: 0
streams: 1
Suggested BufferSize: 32768
Size: 64 x 64
list_end=0x4D4
found 'bih', 1064 bytes of 40
======= STREAM Header =======
Type: vids FCC: RLE (20454C52)
Flags: 0
Priority: 0 Language: 0
InitialFrames: 0
Rate: 15/1 = 15.000
Start: 0 Len: 35
Suggested BufferSize: 4096
Quality 10000
Sample size: 0
Broken chunk? chunksize=2840 (id=JUNK)
======= VIDEO Format ======
biSize 1064
biWidth 64
biHeight 64
biPlanes 1
biBitCount 8
biCompression 1=''
biSizeImage 8192
===========================
Found movie at 0x1000 - 0x17C66
list_end=0x17C66
Reading INDEX block, 35 chunks for 35 frames
Broken chunk? chunksize=0 (id=idx1)
Reading INDEX block, 35 chunks for 35 frames
AVI index offset: 0xFFC (movi=0x1000 idx0=0x4 idx1=0xB92)
list_end=0x17F6C
list_end=0x17FE0
Auto-selected AVI video ID = 0
AVI_NI: No Audio stream found... ->nosound
AVI: Searching for audio stream (id:-1)
AVI: No Audio stream found... ->nosound
AVI video length=93014
VIDEO: [] 64x64 8bpp 15.00 fps 318.9 kbps (38.9 kbyte/s)
[V] filefmt:3 fourcc:0x1 size:64x64 fps:15.00 ftime:=0.0667
get_path('sub/') -> '/root/.mplayer/sub/'
==========================================================================
X11 opening display: :0.0
vo: X11 color mask: FFFF (R:F800 G:7E0 B:1F)
vo: X11 running at 1024x768 with depth 16 and 16 bits/pixel (":0.0" => local display)
VDec: vo config request - 64 x 64, BGR 24-bit
Opening Video Decoder: [msrle] RLE Video decoder
Movie-Aspect is undefined - no prescaling applied.
VO: [x11] 64x64 => 64x64 BGR 24-bit
VO: Description: X11 ( XImage/Shm )
VO: Author: Aaron Holtzman <aholtzma at ess.engr.uvic.ca>
video_out->init(64x64->64x64,flags=0,'MPlayer',0x42475218)
SwScaler: BICUBIC scaler, from BGR 24-bit to dithered BGR 16-bit using MMX2
Detected video codec: [msrle] drv:9 prio:0 (Microsoft RLE)
Sharing memory.
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 4 -> 4
SwScaler: using 4-tap MMX scaler for horizontal luminance scaling
SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling
SwScaler: using n-tap MMX scaler for vertical scaling (BGR)
SwScaler: using MMX YV12->BGR16 Converter
SwScaler: 64x64 -> 64x64
==========================================================================
Audio: no sound!!!
Freeing 0 unused audio chunks
Start playing...
*** Allocating mp_image_t, 64x64x24bpp RGB packed, 12288 bytes
[New Thread 1024 (LWP 883)]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1024 (LWP 883)]
0x81845b8 in swScale_MMX2 (c=0x41e80180, srcParam=0x42257fe0,
srcStrideParam=0xbfffe590, srcSliceY=0, srcSliceH=64, dstParam=0xbfffe550,
dstStrideParam=0xbfffe544) at swscale_template.c:1648
1648 asm volatile(
(gdb) bt
#0 0x81845b8 in swScale_MMX2 (c=0x41e80180, srcParam=0x42257fe0,
srcStrideParam=0xbfffe590, srcSliceY=0, srcSliceH=64, dstParam=0xbfffe550,
dstStrideParam=0xbfffe544) at swscale_template.c:1648
#1 0x8086581 in draw_slice (src=0x42257fe0, stride=0xbfffe590, w=64, h=64,
x=0, y=0) at vo_x11.c:520
#2 0x8086628 in draw_frame (src=0x42257fe0) at vo_x11.c:534
#3 0x809f0e4 in decode_video (video_out=0x81ebda0, sh_video=0x41da2f4c,
start=0x41dac47a "@\n", in_size=2950, drop_frame=0) at dec_video.c:193
#4 0x8063edf in main (argc=5, argv=0xbffff8a4, envp=0xbffff8bc)
at mplayer.c:1503
#5 0x403e12eb in __libc_start_main (main=0x8061acc <main>, argc=5,
ubp_av=0xbffff8a4, init=0x805f9a8 <_init>, fini=0x81acef0 <_fini>,
rtld_fini=0x4000c130 <_dl_fini>, stack_end=0xbffff89c)
at ../sysdeps/generic/libc-start.c:129
(gdb) disass $eip-32 $eip+32
Dump of assembler code from 0x8184598 to 0x81845d8:
0x8184598 <swScale_MMX2+1820>: lds (%edi),%ecx
0x818459a <swScale_MMX2+1822>: cmc
0x818459b <swScale_MMX2+1823>: aad $0xf
0x818459d <swScale_MMX2+1825>: imul $0xf,%edx,%eax
0x81845a0 <swScale_MMX2+1828>: jno 0x8184582 <swScale_MMX2+1798>
0x81845a2 <swScale_MMX2+1830>: pop %es
0x81845a3 <swScale_MMX2+1831>: movd 0xc(%edx,%ebx,1),%mm4
0x81845a8 <swScale_MMX2+1836>: movd 0xf(%edx,%ebx,1),%mm1
0x81845ad <swScale_MMX2+1841>: punpcklbw %mm7,%mm4
0x81845b0 <swScale_MMX2+1844>: punpcklbw %mm7,%mm1
0x81845b3 <swScale_MMX2+1847>: movd 0x12(%edx,%ebx,1),%mm2
0x81845b8 <swScale_MMX2+1852>: movd 0x15(%edx,%ebx,1),%mm3
0x81845bd <swScale_MMX2+1857>: punpcklbw %mm7,%mm2
0x81845c0 <swScale_MMX2+1860>: punpcklbw %mm7,%mm3
0x81845c3 <swScale_MMX2+1863>: pmaddwd %mm6,%mm4
0x81845c6 <swScale_MMX2+1866>: pmaddwd %mm6,%mm1
0x81845c9 <swScale_MMX2+1869>: pmaddwd %mm6,%mm2
0x81845cc <swScale_MMX2+1872>: pmaddwd %mm6,%mm3
0x81845cf <swScale_MMX2+1875>: packssdw %mm1,%mm4
0x81845d2 <swScale_MMX2+1878>: packssdw %mm3,%mm2
0x81845d5 <swScale_MMX2+1881>: pmaddwd %mm5,%mm4
End of assembler dump.
(gdb) printf "eax=%08lX\n",$eax
eax=FFFFFFF8
(gdb) printf "ebx=%08lX\n",$ebx
ebx=FFFFFFE8
(gdb) printf "ecx=%08lX\n",$ecx
ecx=FFFFFFC0
(gdb) printf "edx=%08lX\n",$edx
edx=4225D000
(gdb) printf "esp=%08lX\n",$esp
esp=BFFFE174
(gdb) printf "ebp=%08lX\n",$ebp
ebp=BFFFE4FC
(gdb) printf "edi=%08lX\n",$edi
edi=4222FFD0
(gdb) printf "esi=%08lX\n",$esi
esi=41E80228
(gdb) q
The program is running. Exit anyway? (y or n)
A'rpi / Astral & ESP-team
--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu
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