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Date: Tue, 03 Apr 2007 15:34:43 -0600
From: Scott Long <scottl@samsco.org>
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To: Matthew Jacob <lydianconcepts@gmail.com>
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Cc: freebsd-scsi@freebsd.org, freebsd-current@freebsd.org
Subject: Re: targclose doesn't return
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My guess is that the kninit() in targopen isn't being cleaned up from in
targclose. I'm not terribly familiar in how the knote API works,
though.
Scott
Matthew Jacob wrote:
> Yeah- I've seen this too.
>
> On 4/3/07, Alex Dupre <ale@freebsd.org> wrote:
>> Scott Long wrote:
>> > Are there any other console messages from the targ driver? Can you
>> > turn on CAMDEBUG and send us the trace of what is going on?
>>
>> CAMDEBUG is already on, but simply opening/closing the targ device,
>> without sending any ioctl to enable it, shouldn't produce any CAM
>> message. I traced the kernel thread and I found that it doesn't return
>> from the destroy_devl() function: csw->d_purge is NULL and
>> dev->si_threadcount is '1'. The thread enters the following block
>> (kern_conf.c, row 690) and never exits.
>>
>>
>> while (dev->si_threadcount != 0) {
>> /* Use unique dummy wait ident */
>> msleep(&csw, &devmtx, PRIBIO, "devdrn", hz / 10);
>> }
>>
>>
>> --
>> Alex Dupre
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