有没高手帮忙看看，linux usb 1.1的驱动crash问题

freebarque

tomatousb 的 usb 1.1驱动有问题， kernel 版本是2.6.22的

大家能帮忙看看是那段有问题， 发在开发者论坛上没人理， 看看是不是自己fix
详细信息看着这
http://tomatousb.org/forum/t-367314/usb-driver-ohci-crashed

1. ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
   
2. PCI: Setting latency timer of device 0000:00:03.0 to 64
   
3. ohci_hcd 0000:00:03.0: OHCI Host Controller
   
4. ohci_hcd 0000:00:03.0: new USB bus registered, assigned bus number 1
   
5. ohci_hcd 0000:00:03.0: irq 6, io mem 0x18003000
   
6. Data bus error, epc == c00b04a0, ra == c00b0460
   
7. Cpu 0
   
8. $ 0 : 00000000 1000dc00 00000001 cccc0000
   
9. $ 4 : b8003000 00000000 00000000 ffff00fe
   
10. $ 8 : 00000000 8010dd30 00000000 80298000
    
11. $12 : 8145d6e0 2ab4a284 0000004c 36207172
    
12. $16 : 00000000 8195b0c0 8010d5f0 8195b000
    
13. $20 : cccccccd 801356c0 8002aafc 8023b428
    
14. $24 : 00000003 2ab0a770
    
15. $28 : 81444000 81445c88 802cc960 c00b0460
    
16. Hi : 00000000
    
17. Lo : 01c9c380
    
18. epc : c00b04a0 ohci_run+0x144/0x514 [ohci_hcd] Tainted: P
    
19. ra : c00b0460 ohci_run+0x104/0x514 [ohci_hcd]
    
20. Status: 1000dc02 KERNEL EXL
    
21. Cause : 0000001c
    
22. PrId : 00029008
    
23. Modules linked in: ohci_hcd vfat fat ext2 ext3 jbd mbcache usb_storage sd_mod scsi_wait_scan scsi_mod usbcore nf_nat_pptp nf_conntr
    
24. ack_pptp nf_nat_proto_gre nf_conntrack_proto_gre nf_nat_ftp nf_conntrack_ftp nf_nat_sip nf_conntrack_sip nf_nat_h323 nf_conntrack_h
    
25. 323 nf_nat_rtsp nf_conntrack_rtsp wl(P) igs(P) emf(P) et(P)
    
26. Process modprobe (pid: 1226, threadinfo=81444000, task=8195b800)
    
27. Stack : 1000dc01 8195b000 00000000 8195b000 810ab000 00000002 00000000 8195b000
    
28. 810ab000 00000002 00000080 c00b13d0 00000000 8195b000 8195b04c 8195b000
    
29. 00000000 8195b000 c00d0c54 c00d0b08 810a6c00 c00b2f34 810a6cec 00000006
    
30. c00e3010 00000000 18003000 00000000 fffffff0 810a6c00 8195b000 c00b30d0
    
31. 802a0000 810a6cec 810a6c48 00000019 800510ec c00df93c 18003000 00000006
    
32. …
    
33. Call Trace:
    
34. [<c00b04a0>] ohci_run+0x144/0x514 [ohci_hcd]
    
35. [<c00b13d0>] ohci_pci_start+0x24/0x9c [ohci_hcd]
    
36. [<c00d0c54>] usb_add_hcd+0x4ec/0x924 [usbcore]
    
37. [<c00df93c>] usb_hcd_pci_probe+0x214/0x398 [usbcore]
    
38. [<80117db8>] pci_device_probe+0x7c/0xbc
    
39. [<8013a418>] driver_probe_device+0xf0/0x31c
    
40. [<8013ab2c>] __driver_attach+0x2c4/0x30c
    
41. [<801390fc>] bus_for_each_dev+0x58/0xbc
    
42. [<80139618>] bus_add_driver+0xb0/0x210
    
43. [<80117bec>] __pci_register_driver+0x58/0xc0
    
44. [<c00450b8>] ohci_hcd_mod_init+0xb8/0x1c0 [ohci_hcd]
    
45. [<8005243c>] sys_init_module+0x1a8/0x16d8
    
46. [<80010e50>] stack_done+0x20/0x40
    
47. 
    
48. Code: 24020001 ac820008 8e240000 <8c820008> 30420001 1040000d 00000000 0802c130 2410001d

复制代码

Godbach

是自己修改的代码，还是只是运行系统的驱动出了问题

freebarque

是运行系统出的问题， 不过是mipsel的cpu

代码可以看这里：

http://lxr.linux.no/linux+v2.6.3 ... ost/ohci-hcd.c#L573