??? no-strict-aliasing prevents modules from taking several minutes to load? Can you explain why? thanks mds Andris Pavenis wrote: > > Tried to use lm_sensors-2.6.2 (compiled with gcc-3.0.3 release) with kernel-2.4.18-pre7 > (also compiled with gcc-3.0.3). It took some minutes to load lm_sensors kernel modules, > but sensors semmed to work after that. > > Adding -fno-strict-aliasing to modules compile options fixed that bad > behaviour: > > --- Makefile~1 Sat Jun 2 06:41:17 2001 > +++ Makefile Mon Jan 28 10:32:01 2002 > @@ -170,7 +170,7 @@ > -Wcast-align -Wwrite-strings -Wnested-externs -Winline > endif > > -MODCFLAGS := $(CFLAGS) -D__KERNEL__ -DMODULE -fomit-frame-pointer > +MODCFLAGS := $(CFLAGS) -D__KERNEL__ -DMODULE -fomit-frame-pointer -fno-strict-aliasing > MODCFLAGS := $(MODCFLAGS) -DEXPORT_SYMTAB > PROGCFLAGS := $(CFLAGS) > ARCFLAGS := $(CFLAGS) > > Below is what I see in dmesg (simply for info what parts are actually in use) > > Andris > > i2c-i810.o version 2.6.2 (20011118) > i2c-i810.o: i810/i815 found. > i2c-dev.o: Registered 'I810/I815 I2C Adapter' as minor 0 > i2c-core.o: adapter I810/I815 I2C Adapter registered as adapter 0. > i2c-i810.o: I810/I815 I2C bus initialized > i2c-dev.o: Registered 'I810/I815 DDC Adapter' as minor 1 > i2c-core.o: adapter I810/I815 DDC Adapter registered as adapter 1. > i2c-i810.o: I810/I815 DDC bus initialized > i2c-i801.o version 2.6.2 (20011118) > i2c-dev.o: Registered 'SMBus I801 adapter at e800' as minor 2 > i2c-core.o: adapter SMBus I801 adapter at e800 registered as adapter 2. > i2c-i801.o: I801 bus detected and initialized > w83781d.o version 2.6.2 (20011118) > i2c-core.o: driver W83781D sensor driver registered. > i2c-core.o: client [AS99127F chip] registered to adapter [SMBus I801 adapter at e800](pos. 0). > i2c-core.o: client [AS99127F subclient] registered to adapter [SMBus I801 adapter at e800](pos. 1). > i2c-core.o: client [AS99127F subclient] registered to adapter [SMBus I801 adapter at e800](pos. 2). > > bash-2.05$ sensors > as99127f-i2c-2-2d > Adapter: SMBus I801 adapter at e800 > Algorithm: Non-I2C SMBus adapter > VCore 1: +1.64 V (min = +1.56 V, max = +1.72 V) > +3.3V: +3.45 V (min = +3.13 V, max = +3.45 V) > +5V: +5.04 V (min = +4.72 V, max = +5.24 V) > +12V: +11.36 V (min = +10.79 V, max = +13.19 V) > -12V: -11.48 V (min = -10.73 V, max = -13.19 V) > -5V: -4.98 V (min = -4.74 V, max = -5.24 V) > fan1: 4115 RPM (min = 1500 RPM, div = 4) > temp1: +30?C (limit = +60?C, hysteresis = +50?C) > temp2: +35.5?C (limit = +67?C, hysteresis = +60?C) > vid: +1.65 V > alarms: Chassis intrusion detection
