Date: Sat, 28 Mar 1998 08:52:58 -0500 From: Nathan Dorfman <nathan@rtfm.net> To: multimedia@FreeBSD.ORG Subject: x11amp, again (with more info) Message-ID: <19980328085258.22430@rtfm.net>
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In (perhaps vain) hopes of hunting down and killing the x11amp bug, here's some more info. Perhaps someone can make something of this. Everything will work fine for a while. An hour of playing maybe? A couple of runs? Then, the player (not the GUI) will die with a SIGBUS and dump core. The GUI will still be there but be useless. After (of course) killing the GUI process, and trying to start x11amp again, the playing process will die with SIGSEGV (not SIGBUS) and leave a GUI carcass. The developer has suggested that I try removing the FIFO that is used to communicate between the GUI and the player. It's not there (both processes are gone now). What sucks here is that gdb will read the core file, but not understand the binary, since it's a Leenax binary. /compat/linux/usr/bin/gdb will understand the binary, but won't understand the corefile :-\ What I could do is ktrace x11amp, and use linux_kdump to look at the last few calls of the program. Here they are. I hope someone is able to deduce something, because the author is still unwilling to release the source: 3353 x11amp CALL getpid 3353 x11amp RET getpid 3353/0xd19 3353 x11amp CALL linux_ipc(0x17,0,0x2001c,0x780,0) 3353 x11amp RET linux_ipc -1 errno -28 Unknown error: -28 3353 x11amp CALL linux_ipc(0x15,0xffffffff,0,0xefbfd390,0) 3353 x11amp RET linux_ipc -1 errno -22 Unknown error: -22 3353 x11amp CALL linux_ipc(0x18,0xffffffff,0,0,0) 3353 x11amp RET linux_ipc -1 errno -14 Unknown error: -14 3353 x11amp PSIG SIGSEGV SIG_DFL 3353 x11amp NAMI "x11amp.core" -- ________________ _______________________________ / Nathan Dorfman V PGP: finger nathan@rtfm.net / / nathan@rtfm.net | http://www.rtfm.net / To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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