From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bay0-omc2-s9.bay0.hotmail.com (bay0-omc2-s9.bay0.hotmail.com [65.54.246.145]) by ozlabs.org (Postfix) with ESMTP id 31570DDEDB for ; Thu, 17 May 2007 17:28:43 +1000 (EST) Message-ID: Content-Type: multipart/alternative; boundary="_e975f141-23bb-4235-9f88-c1060d6a7cbc_" From: liChunlin To: Subject: Down when i get date from rtc by "hwclock --hctosys" Date: Thu, 17 May 2007 15:28:39 +0800 MIME-Version: 1.0 List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --_e975f141-23bb-4235-9f88-c1060d6a7cbc_ Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: 8bit The system is Embeded Linux with kernel 2.6.14. And the CPU is MPC8270 of freescale. The rtc module is "Generic /dev/rtc emulation" and "Extended RTC operation". And the chip of rtc is ds1338 with the interface of i2c. The module of i2c has been included. When i enable the dcache of mpc8270 and use "hwclock --hctosys" or "hwclock --show", the system will down. But if i disable dcache, it is ok. I found that when it call schedule_work(&genrtc_task) in the function "static inline int gen_set_rtc_irq_bit(unsigned char bit)" in file genrtc.c it will down. Can you help me? Thanks.Leo _________________________________________________________________ 中国十大热门旅游景点 http://search.msn.com/results.aspx?q=%E4%B8%AD%E5%9B%BD%E5%8D%81%E5%A4%A7%E9%A3%8E%E6%99%AF&mkt=zh-CN&form=QBRE --_e975f141-23bb-4235-9f88-c1060d6a7cbc_ Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: 8bit The system is Embeded Linux with kernel 2.6.14. And the CPU is MPC8270 of freescale. The rtc module is "Generic /dev/rtc emulation" and "Extended RTC operation". And the chip of rtc is ds1338 with the interface of i2c. The module of i2c has been included.
When i enable the dcache of mpc8270 and use "hwclock --hctosys" or "hwclock --show", the system will down. But if i disable dcache, it is ok.
I found that when it call schedule_work(&genrtc_task) in the function "static inline int gen_set_rtc_irq_bit(unsigned char bit)" in file genrtc.c it will down.
Can you help me?
Thanks.
Leo

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