From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael LeMay Subject: Re: Re: Difficulties inserting external modules in dom0 & using a serial port Date: Mon, 24 Apr 2006 10:43:57 -0500 Message-ID: <444CF23D.2060605@lemaymd.com> References: <444C575D.2060601@lemaymd.com> <62b0912f0604240202t1c701166p3f84e5485c9e080d@mail.gmail.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1223220119==" Return-path: In-Reply-To: <62b0912f0604240202t1c701166p3f84e5485c9e080d@mail.gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Mime-version: 1.0 Sender: xen-users-bounces@lists.xensource.com Errors-To: xen-users-bounces@lists.xensource.com Cc: xen-devel@lists.xensource.com, xen-users@lists.xensource.com List-Id: xen-devel@lists.xenproject.org This is a cryptographically signed message in MIME format. --===============1223220119== Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms080407000404050601050801" This is a cryptographically signed message in MIME format. --------------ms080407000404050601050801 Content-Type: multipart/mixed; boundary="------------070408020609040202030302" This is a multi-part message in MIME format. --------------070408020609040202030302 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit As an update, I figured out the "force_evtchn_callback" problem. My module used the spin_lock_irq and spin_unlock_irq routines, which eventually trickled back to force_evtchn_callback. I'm cross-posting this to -devel in case this is a real problem. It seems like these calls should be supported... Thanks for the help! Molle Bestefich wrote: > Michael LeMay wrote: > >> FATAL: Error inserting 8250 (...): Device or resource busy >> > > Xen uses the console too, you might want to check your boot options > and the documentation. > > Perhaps the busy error code refers to an IRQ (check the 8250 source > code to make sure), so you could look in /proc/interrupts and see if > anything else is using the same IRQ that the 8250 is trying to grab. > > Same problem, clue about 8250 being modularized on SuSE but not other distros: > http://article.gmane.org/gmane.comp.emulators.xen.user/2504 > > Same problem, possible solution offered (didn't work) and a clue about > IRQ problems: > http://article.gmane.org/gmane.comp.emulators.xen.user/4275 > http://article.gmane.org/gmane.comp.emulators.xen.user/4290 > http://article.gmane.org/gmane.comp.emulators.xen.user/4298 > > Same problem, no solution: > http://article.gmane.org/gmane.comp.emulators.xen.user/97 > > > >> x10_cm19a: Unknown symbol force_evtchn_callback >> > > Nothing else in dmesg or syslog? > > I usually solve this kind of problem by fiddling with the kernel version :-)... > > Same problem, no solution: > http://article.gmane.org/gmane.comp.emulators.xen.user/10337 > http://article.gmane.org/gmane.comp.emulators.xen.user/10354 > http://article.gmane.org/gmane.comp.emulators.xen.user/10414 > > Same problem, impolite enough to crosspost to users- and devel-list, no replies: > http://article.gmane.org/gmane.comp.emulators.xen.user/9892 > > Same problem, no replies: > http://article.gmane.org/gmane.comp.emulators.xen.user/10543 > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > --------------070408020609040202030302 Content-Type: text/x-vcard; charset=utf-8; name="lemaymd.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="lemaymd.vcf" begin:vcard fn:Michael LeMay n:LeMay;Michael org:University of Illinois at 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