Date: Tue, 01 Nov 2005 20:35:45 +0800 From: Dinesh Nair <dinesh@alphaque.com> To: Dinesh Nair <dinesh@alphaque.com> Cc: freebsd-hackers@freebsd.org, scottl@samsco.org Subject: Re: locking in a device driver Message-ID: <43676121.4030801@alphaque.com> In-Reply-To: <4361E3E0.4090409@alphaque.com> References: <4360B8EE.4070605@alphaque.com> <4360DD7B.20900@samsco.org> <4361044B.50807@alphaque.com> <20051027.205250.55834228.imp@bsdimp.com> <4361E3E0.4090409@alphaque.com>
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On 10/28/05 16:40 Dinesh Nair said the following: > > > On 10/28/05 10:52 M. Warner Losh said the following: > >> libc_r will block all other threads in the application while an ioctl >> executes. libpthread and libthr won't. I've had several bugs at work > > > which is a Good Thing(tm) indeed for me on 4.x. which may not be a Good Thing(tm) after all. this could be causing the problem i'm seeing with the driver on 4.x. any methods to get around this, short of not using threads ? -- Regards, /\_/\ "All dogs go to heaven." dinesh@alphaque.com (0 0) http://www.alphaque.com/ +==========================----oOO--(_)--OOo----==========================+ | for a in past present future; do | | for b in clients employers associates relatives neighbours pets; do | | echo "The opinions here in no way reflect the opinions of my $a $b." | | done; done | +=========================================================================+
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