基于Linux的ARM与FPGA SPI驱动，中断函数调用spidev_sync_read(),出现错误

BUG: scheduling while atomic: spidev_test/1034/0x00010003

Modules linked in: spidev fpga

Pid: 1034, comm:          spidev_test

CPU: 0    Tainted: G        W    (2.6.35.3-571-gcca29a0 #131)

PC is at __setup_irq+0x258/0x378

LR is at mxs_gpio_unmask_irq+0x38/0x40

pc : []    lr : []    psr: 60000013

sp : c7efbd68  ip : c7efbd40  fp : c7efbd94

r10: c7e6b400  r9 : 00000000  r8 : c03fa89c

r7 : 60000013  r6 : 000000bb  r5 : c7e6be40  r4 : c03fa87c

r3 : 00000000  r2 : 00000000  r1 : f0018010  r0 : 00000000

Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user

Control: 0005317f  Table: 47f14000  DAC: 00000015

[] (show_regs+0x0/0x50) from [] (__schedule_bug+0x4c/0x60)

r5:c7efa000 r4:c7efbd20

[] (__schedule_bug+0x0/0x60) from [] (schedule+0x78/0x36c)

r5:c7efa000 r4:c7cc1cc0

[] (schedule+0x0/0x36c) from [] (schedule_timeout+0x20/0x1f4

)

[] (schedule_timeout+0x0/0x1f4) from [] (wait_for_common+0x1

04/0x1d4)

r6:c7efbc04 r5:7fffffff r4:c7efa000

[] (wait_for_common+0x0/0x1d4) from [] (wait_for_completion+

0x18/0x1c)

[] (wait_for_completion+0x0/0x1c) from [] (spidev_sync+0xc8/

0xe4 [spidev])

[] (spidev_sync+0x0/0xe4 [spidev]) from [] (fpga_irq+0x68/0x

8c [spidev])

r6:c7e6b400 r5:c7efbc30 r4:00000001

[] (fpga_irq+0x0/0x8c [spidev]) from [] (handle_IRQ_event+0x

2c/0xfc)

r8:00000001 r7:000000bb r6:00000000 r5:00000000 r4:c7e6be40

[] (handle_IRQ_event+0x0/0xfc) from [] (handle_level_irq+0xd

c/0x188)

r7:c03f956c r6:c7e6be40 r5:000000bb r4:c03fa87c

[] (handle_level_irq+0x0/0x188) from [] (mxs_gpio_irq_handle

r+0x6c/0xa0)

r7:c03f956c r6:0000007e r5:000000bb r4:00000001

[] (mxs_gpio_irq_handler+0x0/0xa0) from [] (asm_do_IRQ+0x74/

0x94)

r7:00000002 r6:000000bb r5:00000000 r4:0000007e

[] (asm_do_IRQ+0x0/0x94) from [] (__irq_svc+0x44/0x8c)

Exception stack(0xc7efbd20 to 0xc7efbd68)

bd20: 00000000 f0018010 00000000 00000000 c03fa87c c7e6be40 000000bb 60000013

bd40: c03fa89c 00000000 c7e6b400 c7efbd94 c7efbd40 c7efbd68 c003b944 c007c710

bd60: 60000013 ffffffff

r5:f0000000 r4:ffffffff

[] (__setup_irq+0x0/0x378) from [] (request_threaded_irq+0xb

c/0x104)

[] (request_threaded_irq+0x0/0x104) from [] (spidev_open+0x1

0c/0x150 [spidev])

[] (spidev_open+0x0/0x150 [spidev]) from [] (chrdev_open+0x1

e8/0x208)

r6:c7e6b8c0 r5:c7f2c280 r4:c7a7b128

[] (chrdev_open+0x0/0x208) from [] (__dentry_open+0x19c/0x2b

8)

r8:c00bf1b4 r7:c7a7b128 r6:c7a7ac00 r5:c7cdbb00 r4:c7f2c280

[] (__dentry_open+0x0/0x2b8) from [] (nameidata_to_filp+0x48

/0x60)

[] (nameidata_to_filp+0x0/0x60) from [] (do_last+0x4a8/0x604

)

r4:c7efbed0

[] (do_last+0x0/0x604) from [] (do_filp_open+0x188/0x4f0)

[] (do_filp_open+0x0/0x4f0) from [] (do_sys_open+0x64/0xec)

[] (do_sys_open+0x0/0xec) from [] (sys_open+0x24/0x28)

[] (sys_open+0x0/0x28) from [] (ret_fast_syscall+0x0/0x2c)

------解决思路----------------------

中断处理函数好像有问题

------解决思路----------------------

你怎么确定是spidev_sync_read()出了问题？

你的spidev_test是怎么调用驱动模块的？

------解决思路----------------------

你的中断是怎么触发的？

能介绍一下你的中断系统和spidev_test之间的关系么？

------解决思路----------------------

你这直接上这么一段崩溃信息都不知道你这代码逻辑，直接上代码请？