Hi, On 19/08/17 10:36, Carl Eugen Hoyos wrote: > 2017-08-18 19:17 GMT+02:00 Carl Eugen Hoyos <ceho...@gmail.com>: >> 2017-08-18 14:08 GMT+02:00 James Cowgill <jcowg...@debian.org>: >>> Control: tags -1 upstream >> >> (Sorry if I misunderstand: Not sure if I am "upstream")
To clarify, the tag doesn't mean that you are upstream. It means that this bug is an upstream bug, as opposed to something Debian specific. >>> Hi, >>> >>> On 18/08/17 08:25, Carl Eugen Hoyos wrote: >>>> Hi! >>>> >>>> Is this issue still reproducible with current FFmpeg git head? >>> >>> I've just tested and yes it is still reproducible with this commit: >> >> Thank you! >> >> I will try to test next week on an Android device, feel free to open a >> ticket on trac.ffmpeg.org - I am not sure how active the arm support >> is though;-( > > I can reproduce a crash on Android with the following command line: > $ ffmpeg -i test.avi -cmp dct -an out.flv > > Unfortunately, I was unable to get any useful gdb output and cannot > verify that I see the same crash you reported: > I managed to get a core dump and copied it to my build system, but > Android gdb could not get a backtrace there;-( Unfortunately as I wrote in the original report, the ARM code reuses the lr register so you can't get a backtrace from where the code gets the SIGBUS. > Could you confirm that this is a regression since 31326143 (ie since > forever) and is not reproducible with f73a626a? Yes the code fails in the same place with 31326143 and worlds with f73a626a, although I don't think the ARM code is at fault here since the misaligned argument is coming from further up the call chain. > Since I cannot produce the required gdb output, you will have to open > a ticket, sorry! OK. I'll see if the arguments are misaligned on x86 as well first. Thanks, James
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