linux-kernel - Re: bugs in _

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Message-ID: <4680CBD4.2040702@alcatel-lucent.com>
Date:	Tue, 26 Jun 2007 16:18:28 +0800
From:	gshan <gshan@...atel-lucent.com>
To:	Alexey Dobriyan <adobriyan@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: bugs in __schedule()

The code is written by myself. 2 questions:

1) tasklet couldn't sleep?
2) It is because the tasklet take a semaphore?

Thanks,
Gavin

Alexey Dobriyan wrote:
> On 6/26/07, gshan <gshan@...atel-lucent.com> wrote:
>> Anybody has suggestions on this crash?
>
> talk to whoever supplied the following into your kernel:
>
>> [c02dc4dc] __schedule+0x654/0x788
>>  [c02dc6f4] schedule+0x4c/0xe4
>>  [c02dbe24] __compat_down+0xc8/0x12c
>>  [c0226b60] mv_sw_read_reg+0x178/0x17c
>
> this
>
>>  [c02296fc] mvSwIntrTasklet+0x128/0x744
>
> and this.
>
>>  [c0020afc] tasklet_action+0x7c/0xec
>>  [c00204f4] ___do_softirq+0x80/0x11c
>>  [c00205cc] __do_softirq+0x3c/0x6c
>>  [c00206a4] do_softirq+0x60/0x68
>>  [c00207a8] irq_exit+0x6c/0x94
>>  [c0005e1c] do_IRQ+0x88/0xa4
>>  [c0004b70] ret_from_except+0x0/0x18
>>  [c000680c] __delay+0xc/0x14
>>  [c0226598] mv_sw_read_smi_reg+0x84/0x1ac

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