I am using kernel v2.4.0 on Abit BP6 with two Intel Pentium Celeron 366@517Mhz + video based on Riva TNT2 M64 32Mb + network card 3com 3c905b + Creative Sound Blaster 64 pnp isa and hercules video card. I'm geting all over the time messages like that: Jan 31 23:37:16 Zeus kernel: APIC error on CPU0: 02(02) Jan 31 23:37:17 Zeus kernel: APIC error on CPU1: 02(08) Jan 31 23:37:26 Zeus kernel: APIC error on CPU1: 08(08) Jan 31 23:37:26 Zeus kernel: APIC error on CPU1: 08(08) Jan 31 23:37:26 Zeus kernel: APIC error on CPU0: 02(04) Jan 31 23:37:27 Zeus kernel: APIC error on CPU0: 04(02) Jan 31 23:37:30 Zeus kernel: APIC error on CPU1: 08(08) Jan 31 23:38:17 Zeus kernel: APIC error on CPU0: 02(08) Jan 31 23:38:20 Zeus kernel: APIC error on CPU1: 08(08) Jan 31 23:38:22 Zeus kernel: APIC error on CPU0: 08(02) Jan 31 23:38:26 Zeus kernel: APIC error on CPU1: 08(08) Jan 31 23:38:26 Zeus kernel: APIC error on CPU0: 02(02) Jan 31 23:38:29 Zeus kernel: APIC error on CPU1: 08(02) Jan 31 23:38:41 Zeus kernel: APIC error on CPU1: 02(08) Jan 31 23:38:51 Zeus kernel: APIC error on CPU0: 02(02) Jan 31 23:38:58 Zeus kernel: APIC error on CPU1: 08(08) Jan 31 23:39:15 Zeus kernel: APIC error on CPU1: 08(02) Jan 31 23:39:15 Zeus kernel: APIC error on CPU1: 02(08) Jan 31 23:39:15 Zeus kernel: APIC error on CPU0: 02(04) Jan 31 23:39:17 Zeus kernel: APIC error on CPU1: 08(08) Jan 31 23:39:18 Zeus kernel: APIC error on CPU1: 08(02) Jan 31 23:39:46 Zeus kernel: APIC error on CPU0: 04(02) And when I was using kernels v2.2.x ther was no such messages. I am wandering if it is hardware or software problem? Grzes. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/