因此，我的setup_timer()中的TimerExpire函数会引起巨大的恐慌(将在下面发布)，而对TimerExpire()的常规函数​​调用实际上将输出我的输入。

void TimerExpire(char* data)

{

printk("Timer Data: %s\n", data);

}

setup_timer(&my_timer, TimerExpire, (char *)args);

printk("Made timer: %s\n", (char *)args);

TimerExpire((char *)args);

有人知道为什么吗？

这是错误输出(顺便说一下，这是在gumstix verdex仿真器上，它是Linux内核)：

# Unable to handle kernel paging request at virtual address be940eb2

pgd = c0004000

[be940eb2] *pgd=00000000

Internal error: Oops: 35 [#1]

Modules linked in: mytimer ipv6 pxa2xx_cs pxa2xx_core pcmcia pcmcia_core firmware_class pxamci mmc_block mmc_core

CPU: 0

PC is at strnlen+0x20/0x34

LR is at vsnprintf+0x318/0x5c8

pc : [] lr : [] Not tainted

sp : c01b9d88 ip : c01b9d98 fp : c01b9d94

r10: 00000000 r9 : c01ca148 r8 : ffffffff

r7 : c01ce468 r6 : c01c9d54 r5 : be940eb2 r4 : c01b9e94

r3 : c01a0808 r2 : be940eb2 r1 : fffffffe r0 : be940eb2

Flags: NzCv IRQs off FIQs on Mode SVC_32 Segment kernel

Control: 7977

Table: A3488000 DAC: 00000017

Process swapper (pid: 0, stack limit = 0xc01b8258)

Stack: (0xc01b9d88 to 0xc01ba000)

9d80: c01b9de4 c01b9d98 c00d7d4c c00d6bd4 00000000 c01b9e4c

9da0: 00000989 00000033 c01b9e24 00000400 c01c9d48 bf06523d 000080d5 00000400

9dc0: bf065054 c01b9e94 c01ce468 00000000 69054114 c01b8000 c01b9dfc c01b9de8

9de0: c00d814c c00d7a40 00000000 bf065230 c01b9e74 c01b9e00 c00381b8 c00d8140

9e00: c01b9e24 20000193 00000001 60000113 00000000 c0276db0 00000000 00000003

9e20: c01b9e3c c01b9e30 c003468c c0034508 c01b9e6c c01b9e40 c0033268 c0034684

9e40: 00000989 20000193 c01b9ec4 00000100 bf065054 bf065944 c01ce468 00000000

9e60: 69054114 c01b8000 c01b9e8c c01b9e78 c003845c c003810c bf065944 c01b9e94

9e80: c01b9eac c01b9ea0 bf06504c c0038444 bf065230 be940eb2 c01b9ec8 60000113

9ea0: c01b9ebc c01b9eb0 bf065064 bf065040 c01b9ef4 c01b9ec0 c003ffb8 bf065060

9ec0: bf065960 c0040d08 c01b9ec8 c01b9ec8 00000001 c01ce264 0000000a c01e1d7c

9ee0: a001419c a0014168 c01b9f14 c01b9ef8 c003c7c4 c003fe60 69054114 0000001a

9f00: c01ba680 00000000 c01b9f24 c01b9f18 c003cb88 c003c770 c01b9f44 c01b9f28

9f20: c002957c c003cb50 c00086f4 ffffffff c01b9f7c 04000000 c01b9f9c c01b9f48

9f40: c0028830 c0029540 00000001 c01b8000 a0000013 20000013 c0029d44 c01b8000

9f60: c00153e8 c01e1d7c a001419c 69054114 a0014168 c01b9f9c c01b9f90 c01b9f90

9f80: c0029d8c c0029d98 20000013 ffffffff c01b9fb4 c01b9fa0 c0029b1c c0029d50

9fa0: c01dc20c c01c88b0 c01b9fc4 c01b9fb8 c0028138 c0029af0 c01b9ff4 c01b9fc8

9fc0: c0008adc c0028120 c00083e4 00000000 00000000 c00153e8 00000000 00007975

9fe0: c01c8964 c01be264 00000000 c01b9ff8 a0008030 c00088bc 00000000 00000000

Backtrace:

[] (strnlen+0x0/0x34) from [] (vsnprintf+0x318/0x5c8)

[] (vsnprintf+0x0/0x5c8) from [] (vscnprintf+0x18/0x24)

[] (vscnprintf+0x0/0x24) from [] (vprintk+0xb8/0x334)

r4 = BF065230

[] (vprintk+0x0/0x334) from [] (printk+0x28/0x30)

[] (printk+0x0/0x30) from [] (PrintMessage+0x18/0x20 [mytimer])

r3 = 60000113 r2 = C01B9EC8 r1 = BE940EB2 r0 = BF065230

[] (PrintMessage+0x0/0x20 [mytimer]) from [] (TimerExpire+0x10/0x14 [mytimer])

[] (TimerExpire+0x0/0x14 [mytimer]) from [] (run_timer_softirq+0x164/0x1e8)

[] (run_timer_softirq+0x0/0x1e8) from [] (__do_softirq+0x60/0xd4)

[] (__do_softirq+0x0/0xd4) from [] (irq_exit+0x44/0x4c)

r6 = 00000000 r5 = C01BA680 r4 = 0000001A

[] (irq_exit+0x0/0x4c) from [] (asm_do_IRQ+0x48/0x60)

[] (asm_do_IRQ+0x0/0x60) from [] (__irq_svc+0x30/0x80)

r6 = 04000000 r5 = C01B9F7C r4 = FFFFFFFF

[] (default_idle+0x0/0x5c) from [] (cpu_idle+0x38/0x54)

[] (cpu_idle+0x0/0x54) from [] (rest_init+0x24/0x2c)

r5 = C01C88B0 r4 = C01DC20C

[] (rest_init+0x0/0x2c) from [] (start_kernel+0x22c/0x284)

[] (start_kernel+0x0/0x284) from [] (0xa0008030)

Code: ea000000 e2800001 e2511001 3a000002 (e5d03000)

Kernel panic - not syncing: Aiee, killing interrupt handler!