Hi, all:

My writed network device driver works fine under several MegaBytes file's transmittion, but above this size, especially dozens of or hundreds of MegaBytes, the kernel panic ocurres! I check the kern.log and find this error :

522 Nov 14 19:35:32 liklstar-server kerneNov 14 19:37:52 liklstar-server kernel: Cannot find map file.
523 Nov 14 19:37:52 liklstar-server kernel: Loaded 64988 symbols from 45 modules.
524 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] Initializing cgroup subsys cpuset
525 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] Initializing cgroup subsys cpu
526 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] Linux version 3.0.4 (root'at'liklstar-server) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #1 SMP Su n Nov 13 02:31:23 CST 2011
527 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-provided physical RAM map:
528 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009f400 (usable)
529 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-e820: 000000000009f400 - 00000000000a0000 (reserved)
530 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-e820: 00000000000e2000 - 0000000000100000 (reserved)
531 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-e820: 0000000000100000 - 00000000cff90000 (usable)
532 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-e820: 00000000cff90000 - 00000000cff9e000 (ACPI data)
533 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-e820: 00000000cff9e000 - 00000000cffe0000 (ACPI NVS)
534 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-e820: 00000000cffe0000 - 00000000d0000000 (reserved)
535 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
536 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] BIOS-e820: 0000000100000000 - 0000000220000000 (usable)
537 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] Notice: NX (Execute Disable) protection cannot be enabled: non-PAE kernel!
538 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] DMI present.
539 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] DMI: MSI MS-7623/880GM-E41 (MS-7623), BIOS V11.8 12/01/2010
540 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved)
541 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
542 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] last_pfn = 0xcff90 max_arch_pfn = 0x100000
543 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] MTRR default type: uncachable
544 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] MTRR fixed ranges enabled:
545 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] 00000-9FFFF write-back
546 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] A0000-EFFFF uncachable
547 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] F0000-FFFFF write-protect
548 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] MTRR variable ranges enabled:
549 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] 0 base 000000000000 mask FFFF80000000 write-back
550 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] 1 base 000080000000 mask FFFFC0000000 write-back
551 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] 2 base 0000C0000000 mask FFFFF0000000 write-back
552 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] 3 disabled
553 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] 4 disabled
554 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] 5 disabled
555 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] 6 disabled
556 Nov 14 19:37:52 liklstar-server kernel: [ 0.000000] 7 disabled
... ...

what do these messages mean? Is it a kernel bug? what should I do with my driver?


thanks!
li,kunlun