http://bugzilla.kernel.org/show_bug.cgi?id=14679
--- Comment #42 from Lin Ming <[email protected]> 2009-12-02 08:23:32 --- Created an attachment (id=23995) --> (http://bugzilla.kernel.org/attachment.cgi?id=23995) debug patch Mike, thanks for the quick response. Seems that DSDT is not modified in acpi_enable. I wrote another debug patch to check DSDT in several other places as Len suggested. Would you help to test it? First, apply my "copy dsdt" patch at #35, then this patch. Please enable CONFIG_DEBUG_INFO which locates at "Kernel hacking ---> Compile the kernel with debug info" of menuconfig. If DSDT modification is detected, this patch will dump the call trace, like below [ 894.116690] check_dsdt: DSDT is modified, dump the call stack [ 894.116696] Pid: 3774, comm: cat Not tainted 2.6.32-rc8-copy_check_dsdt #116 [ 894.116699] Call Trace: [ 894.116707] [<c02dfb92>] check_dsdt+0x72/0x88 [ 894.116711] [<c02b3576>] acpi_os_read_port+0x4c/0x6b [ 894.116716] [<c02d2981>] acpi_hw_read_port+0x25/0x80 [ 894.116721] [<c02d1463>] acpi_hw_read+0x48/0x91 [ 894.116725] [<c02d14cf>] acpi_hw_read_multiple+0x23/0x54 [ 894.116729] [<c02d1725>] acpi_hw_register_read+0x5a/0xf1 [ 894.116733] [<c02d2309>] acpi_read_bit_register+0x64/0xe7 [ 894.116738] [<c02c3dfb>] acpi_get_event_status+0x7f/0x10b If kernel is build with CONFIG_DEBUG_INFO=y, then you can run addr2line to get the source line of above stack, for example, addr2line -e vmlinux 0xc02b3576 Please attach the dmesg. And also the results of addr2line if DSDT modification is detected. Thanks. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev _______________________________________________ acpi-bugzilla mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
