I recompiled nvclock and smartdimmer with debug symbols and could produce the traces:
smartdimmer (same result with -i, -d or -s XX) Program received signal SIGSEGV, Segmentation fault. 0x000000000040ff2f in load_bios_pramin (data=0x61d270 "") at bios.c:991 991 old_bar0_pramin = nv_card->PMC[0x1700/4]; (gdb) bt #0 0x000000000040ff2f in load_bios_pramin (data=0x61d270 "") at bios.c:991 #1 0x000000000040fcfc in dump_bios (filename=0x7fffffffb330 "/root/.nvclock/bios0.rom") at bios.c:909 #2 0x000000000040d736 in create_config (file=0x61d030 "/root/.nvclock/config") at config.c:547 #3 0x000000000040cf32 in open_config () at config.c:309 #4 0x000000000040b836 in init_nvclock () at back_linux.c:109 #5 0x000000000040169f in sd_init () at smartdimmer.c:73 #6 0x0000000000401832 in main (argc=2, argv=0x7fffffffb5f8) at smartdimmer.c:131 nvclock -s 50: Program received signal SIGSEGV, Segmentation fault. 0x0000000000414417 in load_bios_pramin (data=0x623270 "") at bios.c:991 991 old_bar0_pramin = nv_card->PMC[0x1700/4]; (gdb) bt #0 0x0000000000414417 in load_bios_pramin (data=0x623270 "") at bios.c:991 #1 0x00000000004141e4 in dump_bios (filename=0x7fffffffb1a0 "/root/.nvclock/bios0.rom") at bios.c:909 #2 0x0000000000406f3a in create_config (file=0x623030 "/root/.nvclock/config") at config.c:547 #3 0x0000000000406736 in open_config () at config.c:309 #4 0x000000000041153a in init_nvclock () at back_linux.c:109 #5 0x00000000004029bc in main (argc=3, argv=0x7fffffffb5e8) at nvclock.c:605 Let me know if I can help in any way, and if you need to test any patch. bests -- Lorenzo Paulatto - Paris