=> cat /proc/bus/pnp/escd Then this oops. Unable to handle kernel paging request at virtual address ffffa00a => Could someone explain me in a few words what does it mean "unable => to handle..." or point me on docs? Dec 16 22:35:06 cubloid-pc kernel: printing eip: Dec 16 22:35:06 cubloid-pc kernel: 00007768 Dec 16 22:35:06 cubloid-pc kernel: *pde = 00001063 Dec 16 22:35:06 cubloid-pc kernel: *pte = 00000000 Dec 16 22:35:06 cubloid-pc kernel: Oops: 0000 Dec 16 22:35:06 cubloid-pc kernel: CPU: 0 Dec 16 22:35:06 cubloid-pc kernel: EIP: 0088:[<00007768>] Not tainted Dec 16 22:35:06 cubloid-pc kernel: EFLAGS: 00010086 Dec 16 22:35:06 cubloid-pc kernel: EIP is at 0x7768 Dec 16 22:35:06 cubloid-pc kernel: eax: 000022ff ebx: 00a06816 ecx: 00000090 edx: 00000000 Dec 16 22:35:06 cubloid-pc kernel: esi: 0000000a edi: 00000000 ebp: c202790f esp: c2027e80 Dec 16 22:35:06 cubloid-pc kernel: ds: 00a0 es: 0098 ss: 0068 Dec 16 22:35:06 cubloid-pc kernel: Process cat (pid: 130, threadinfo=c2026000 task=c25a06e0) Dec 16 22:35:06 cubloid-pc kernel: Stack: 000a0006 00a00000 00060098 7919774a 00000000 658a0090 682f7eb4 00680000 Dec 16 22:35:06 cubloid-pc kernel: 00000068 66840042 00960098 c2027efc 0080000b 00000042 00a00098 00000090 Dec 16 22:35:06 cubloid-pc kernel: 00000000 c01d6f2c 00000060 00000082 00000000 00000000 00000068 00000068 Dec 16 22:35:06 cubloid-pc kernel: Call Trace: Dec 16 22:35:06 cubloid-pc kernel: [<c01d6f2c>] __pnp_bios_read_escd+0xe0/0x128 => In this func "__pnp_bios_read_escd" error occured? I think so, am I => right? Dec 16 22:35:06 cubloid-pc kernel: [<c01d6f85>] pnp_bios_read_escd+0x11/0x34 Dec 16 22:35:06 cubloid-pc kernel: [<c01d8002>] proc_read_escd+0x66/0xfc Dec 16 22:35:06 cubloid-pc kernel: [<c015c577>] proc_file_read+0xb7/0x178 Dec 16 22:35:06 cubloid-pc kernel: [<c0139033>] vfs_read+0xa7/0x108 Dec 16 22:35:06 cubloid-pc kernel: [<c013927e>] sys_read+0x2a/0x40 Dec 16 22:35:06 cubloid-pc kernel: [<c0108a67>] syscall_call+0x7/0xb Dec 16 22:35:06 cubloid-pc kernel: Dec 16 22:35:06 cubloid-pc kernel: Code: Bad EIP value. => cat /proc/bus/pnp/escd_info min_ESCD_write_size 8192 ESCD_size 3776 NVRAM_base 0xffffa000 => We get this adress from call to another BIOS function, but may be => we have to allocate page or something else I don't know exactly => what. But I want to know more about it. And any suggextions or => explanations will be very good. Beforehead Thanks to All. Ruslan. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/