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From:      Ben Stuyts <ben@stuyts.nl>
To:        Alfred Perlstein <alfred@FreeBSD.ORG>
Cc:        Jeff Roberson <jroberson@chesapeake.net>, Terry Lambert <tlambert2@mindspring.com>, Robert Watson <rwatson@freebsd.org>, current@freebsd.org, jeff@freebsd.org
Subject:   Re: [Ugly PATCH] Again: panic kmem_malloc()
Message-ID:  <20021017124351.A37274@terminus.stuyts.nl>
In-Reply-To: <20021016212619.GR95327@elvis.mu.org>; from alfred@FreeBSD.ORG on Wed, Oct 16, 2002 at 02:26:19PM -0700
References:  <4.3.2.7.2.20021016213322.01c6d348@terminus> <4.3.2.7.2.20021016225907.00b8b8b0@terminus> <20021016212619.GR95327@elvis.mu.org>

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Hello Alfred,

On Wed, Oct 16, 2002 at 02:26:19PM -0700, Alfred Perlstein wrote:
> * Ben Stuyts <ben@stuyts.nl> [021016 14:05] wrote:
> > 
> > No need to wait for tomorrow. :-) Just 1.5 hours later, vmstat -m says:
> > 
> > <           sem167344  2622K   2622K   167344  16,1024,4096
> > ---
> > >           sem235512  3687K   3687K   235512  16,1024,4096
> > 
> > So it looks indeed like sem is the problem,
> 
> what does
> sysctl -a | grep ^p10
> say?

p1003_1b.asynchronous_io: 0
p1003_1b.mapped_files: 1
p1003_1b.memlock: 0
p1003_1b.memlock_range: 0
p1003_1b.memory_protection: 0
p1003_1b.message_passing: 0
p1003_1b.prioritized_io: 0
p1003_1b.priority_scheduling: 1
p1003_1b.realtime_signals: 0
p1003_1b.semaphores: 0
p1003_1b.fsync: 0
p1003_1b.shared_memory_objects: 1
p1003_1b.synchronized_io: 0
p1003_1b.timers: 0
p1003_1b.aio_listio_max: 0
p1003_1b.aio_max: 0
p1003_1b.aio_prio_delta_max: 0
p1003_1b.delaytimer_max: 0
p1003_1b.mq_open_max: 0
p1003_1b.pagesize: 4096
p1003_1b.rtsig_max: 0
p1003_1b.sem_nsems_max: 0
p1003_1b.sem_value_max: 0
p1003_1b.sigqueue_max: 0
p1003_1b.timer_max: 0

> My guess is that you don't have the module in question loaded.
> 
> If you do, then why?  (it's marked experimental)

The only modules loaded are:

[terminus.stuyts.nl boot/kernel]21: kldstat
Id Refs Address    Size     Name
 1    3 0xc0100000 3daa00   kernel
 2    1 0xc12fd000 2000     green_saver.ko

> And why aren't these bug reports a lot more detailed? (meaing why
> aren't you actually giving an hypothesys as to why the code is
> broken?)

I think it was Jeff Roberson hinting at that. I am only reporting a problem
and I hope I can help fixing it. I have however no knowledge of the kernel
internals, so forgive me for being too vague and let me know what more
information you need.

> *grumble*

Sorry...

Kind regards,
Ben

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