MediaPlayer crash with mp4 file

[luroh]

Rev 38606, gcc2, VMware and real hw.

This file plays in hrev38547 but causes MP to crash in hrev38563 and later (the intermediate revisions don't build): ​http://deathstar.knuttinatoll.net/hammer/jambalaya.mp4 (20 MB)

May be a dupe of #6561.

[stippi]

Cannot reproduce, the file plays fine here (GCC4 image).

[luroh]

You are right, it only affects gcc2 and gcc2h builds, not gcc4 or gcc4h ones.

[stippi]

Some optimizations are turned off for the GCC2 build. Or GCC2 may generate invalid code from some assembler.

[stippi]

Can you make your own builds? If so, you could revert individual changes from hrev38562. Start with the run-time CPU detection (revert it if it doesn't have any effect), the registers, then SSE and so on, until the file plays again. Then we know what we have to disable for GCC2.

[luroh]

Thanks for the suggestion, I'll try that and revert.

[luroh]

#define CONFIG_RUNTIME_CPUDETECT 0 makes MP stop crashing to gdb as described above ("corrupt stack?"). Instead, it exits silently. When running MP from a Terminal window, the following output can be observed:

~> MediaPlayer 
MainWin::MessageReceived: B_SIMPLE_DATA
open playlist item: jambalaya.mp4
asfReader::asfReader
asfReader::Sniff
asfReader::Sniff: unsupported file type
Abort
Killed (by death)
~>

Reverting any of the other changes in hrev38562 does seemingly not make any difference.

[luroh]

Regression range updated.

[luroh]

Sorry, strike that - with hrev38706, MP crashes to gdb like before, no matter what changes from hrev38562 I revert.

[stippi]

Fixed in hrev38746.