[Crash-utility] dis command not correct in crash [ARM]

[Lei Wen]

Hi Mike,


On Tue, Mar 5, 2013 at 3:49 AM, Mika Westerberg <mika.westerberg at iki.fi>wrote:

> On Mon, Mar 04, 2013 at 10:20:42AM +0800, Lei Wen wrote:
> > I met "dis" command not correct issue when use the crash, any idea?
> > For built-in "dis" command in crash:
> > crash> dis task_rq_lock
> > 0xc015a2d8 <task_rq_lock>:      rscsgt  r0, sp, r3, lsl #14
> > 0xc015a2dc <task_rq_lock+4>:    mrcgt   8, 7, r0, cr2, cr13, {5}
> > 0xc015a2e0 <task_rq_lock+8>:    mcrvc   8, 4, r3, cr13, cr3, {6}
> > 0xc015a2e4 <task_rq_lock+12>:   lslsvc  r3, r10, r8
> > 0xc015a2e8 <task_rq_lock+16>:   bl      0xc049fe34
> > <__ip_route_output_key+220>
>
> Looks weird.
>
> What is the kernel version? Does the 'dis' command work for other
> functions?
>

Seems other functions is not working either...
Is the page table being corrupted? But I still could parse out the dump
image and check the kernel dmesg for it, which is also weird.

crash> dis sched_rt_handler
0xc0160ed8 <sched_rt_handler>:  cdppl   13, 5, cr2, cr6, cr13, {4}
0xc0160edc <sched_rt_handler+4>:        stcle   9, cr7, [r7], #132      ;
0x84
0xc0160ee0 <sched_rt_handler+8>:                        ; <UNDEFINED>
instruction: 0x167256bb

(gdb) disas sched_rt_handler
Dump of assembler code for function sched_rt_handler:
   0xc0160ed8 <+0>:     push    {r4, r5, r6, r7, r8, r9, r10, r11, lr}
   0xc0160edc <+4>:     add     r11, sp, #32
   0xc0160ee0 <+8>:     ldr     r4, [pc, #384]  ; 0xc0161068
<sched_rt_handler+400>

Thanks,
Lei
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