gdb output after pressing volup (0): Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 1024 (LWP 10488)] control (cmd=4, arg=536863392) at ao_oss.c:70 70 vol->left = v & 0x00FF; (gdb) Linuxdistro: Debian woody /proc/cpuinfo: cpu : Alpha cpu model : EV56 cpu variation : 0 cpu revision : 0 cpu serial number : Linux_is_Great! system type : Miata system variation : 0 system revision : 0 system serial number : MILO-2.0.35-c5. cycle frequency [Hz] : 433097278 est. timer frequency [Hz] : 1024.00 page size [bytes] : 8192 phys. address bits : 40 max. addr. space # : 127 BogoMIPS : 860.60 kernel unaligned acc : 0 (pc=0,va=0) user unaligned acc : 15015 (pc=120049f9c,va=12042a96c) platform string : N/A cpus detected : 0 uname -a Linux surfstation-amiv 2.4.18 #1 Fre Dez 13 14:16:13 CET 2002 alpha unknown gcc --version 2.95.4 the reason why that happend: the address on my alpha station is 64bit long, but the integer is only 32bit long. (gdb) up #1 0x12004ffac in mixer_getvolume (l=0x11fffe2c0, r=0x11fffe2c4) at mixer.c:25 25 if(CONTROL_OK != audio_out->control(AOCONTROL_GET_VOLUME,(int)&vol)) (gdb) p &vol $1 = (ao_control_vol_t *) 0x11fffe2a0 (gdb) p (int)&vol $2 = 536863392 (gdb) p (long)&vol $3 = 4831830688 (gdb) down #0 control (cmd=4, arg=536863392) at ao_oss.c:70 70 vol->left = v & 0x00FF; (gdb) p arg $4 = 536863392 (gdb) cu mga -- _______________________________________________________________________ ___ ___ ___ _____ / __\/__ \ / __/_ /___ \ Marco Graf marco.graf@schweiz.org / / / / / // /_/ / / _ / Heldaustr. 18 http://marco.graf.nine.ch /_/ /_/ / / \__/ / /___/_/ 9470 Buchs SG ICQ: 23012328 /___/ +41-81-7565109 mobile: +41-78-6030045