From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4084151A.4050805@buckeye.ece.drexel.edu> Date: Mon, 19 Apr 2004 14:06:18 -0400 From: Sharad Gupta MIME-Version: 1.0 To: Jeff Angielski , LinuxPPC Subject: Re: System ACE MPU interface to CF card References: <407470ED.3030607@buckeye.ece.drexel.edu> <6058-40021@sneakemail.com> <407ADCFE.8080302@buckeye.ece.drexel.edu> <25757-52278@sneakemail.com> <407EDCF7.2020009@buckeye.ece.drexel.edu> <1082322389.23738.13.camel@localhost.localdomain> In-Reply-To: <1082322389.23738.13.camel@localhost.localdomain> Content-Type: text/plain; charset=us-ascii; format=flowed Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Jeff Angielski wrote: > Sounds to me like you do not have your interrupts configured properly > between the SystemACE and the CPU or your xsa_thread is dying > prematurely. > > Either way, the kernel is getting no response when it actually tries to > access the CF thru the SystemACE. > > > Jeff Angielski > The PTR Group I do not enable interrupts between SystemACE and the CPU. Following the debug cycle: xsysace_init() ->register_disk() -->grok_partitions() --->check_partition() ---->msdos_partition() ----->read_dev_sector() ------>read_cache_page() ------->lock_page() -------->__lock_page() --------->schedule() And it never resumes after that. The code just goes to power_save mode. Any help would be appreciated. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/