Re: [Ocf-linux-users] URGENT bug.

[David M. <Dav...@se...>]

Jivin Nawang Chhetan lays it down ...
> No.

Ok,  what sort of load/testing  produced it ?

I ran OCF + cryptosoft through our benchmark suite on an IXP425 (arm-be)
just a couple of days ago without problems.

I can send you the diffs against that last release in case there is
something we have fixed in there.  The trick is the openswan diffs,
as I have moved up to 2.4.11 now,

Cheers,
Davidm

> 
> On Dec 10, 2007 4:07 PM, David McCullough <
> Dav...@se...> wrote:
> 
> >
> > Jivin Nawang Chhetan lays it down ...
> > > Hi David,
> > >              I browsed through the swcr_newsession code. I realized
> > there is
> > > something seriously wrong.
> > > I am attaching dmesg dump, which clearly indicates where the following
> > bug
> > > message is generated
> > >             BUG: sleeping function called from invalid context at
> > > kernel/rwsem.c:20
> >
> > Is this with pre-emption turned on still ?
> >
> > Thanks,
> > David
> >
> > PS
> >        I wil get to your other mail,  just very busy at the moment :-(
> >
> > > I am using OCF with cryptosoft. Basically this result because we take a
> > lock
> > > in cryto_newsession before calling the swcr_newsession. swcr_newsession
> > > further calls a linux crypto library function which is sleeping.
> > >
> > > ******************
> > > dmesg
> > > [  524.873107] crypto/ocf/crypto.c,354: DRIVER_LOCK()
> > > [  524.873120] swcr_newsession()
> > > [  524.873127] swcr_newsession crypto_alloc_blkcipher(cbc(aes), 0x0)
> > > [  524.873136] BUG: sleeping function called from invalid context at
> > > kernel/rwsem.c:20
> > > [  524.880781] in_atomic():0, irqs_disabled():1
> > > [  524.880825]  [<c013fa32>] down_read+0x12/0x20
> > > [  524.880845]  [<c01e8bce>] crypto_alg_lookup+0x1e/0x50
> > > [  524.880865]  [<c01e8c30>] crypto_alg_mod_lookup+0x30/0x260
> > > [  524.880891]  [<c01e8ea6>] crypto_alloc_base+0x26/0x80
> > > [  524.880914]  [<e0ae2f6d>] swcr_newsession+0x1cd/0x770 [cryptosoft]
> > > [  524.880964]  [<e09f8351>] crypto_newsession+0x1d1/0x240 [ocf]
> > > ******************
> > >
> > > Please comment.
> > >
> > > --
> > > Nawang Chhetan
> > > Software Engineer
> > > SafeNet India.
> >
> > --
> > David McCullough,  dav...@se...,   Ph:+61
> > 734352815
> > Secure Computing - SnapGear  http://www.uCdot.org
> > http://www.cyberguard.com
> >
> 
> 
> 
> -- 
> Nawang Chhetan
> Software Engineer
> SafeNet India.

-- 
David McCullough,  dav...@se...,   Ph:+61 734352815
Secure Computing - SnapGear  http://www.uCdot.org http://www.cyberguard.com