Jay Lan (on Thu, 02 Nov 2006 10:48:51 -0800) wrote: >Hi, > >I have a vmcore created by NMI on an SN. The gdb backtrace >showed the slave cpu as below: > ># gdb vmlinux vmcore-nmi-10 >GNU gdb 6.4 >Copyright 2005 Free Software Foundation, Inc. >GDB is free software, covered by the GNU General Public License, and you are >welcome to change it and/or distribute copies of it under certain >conditions. >Type "show copying" to see the conditions. >There is absolutely no warranty for GDB. Type "show warranty" for details. >This GDB was configured as "ia64-suse-linux"...Using host libthread_db >library "/lib/libthread_db.so.1". > >#0 crash_save_this_cpu () at arch/ia64/kernel/crash.c:57 > >warning: Source file is more recent than executable. >57 memcpy(buf, name, note->n_namesz); >(gdb) bt >#0 crash_save_this_cpu () at arch/ia64/kernel/crash.c:57 >#1 0xa00000010005f580 in kdump_cpu_freeze (info=3D<value optimized out>, > arg=3D0x1) at arch/ia64/kernel/crash.c:166 >#2 0xa00000010000c9f0 in unw_init_running () at include/linux/bitmap.h:237 >#3 0xa00000010005ef70 in kdump_init_notifier (self=3D0xa000000100b47d78, > val=3D<value optimized out>, data=3D0xe000003007157b70) > at arch/ia64/kernel/crash.c:217 >#4 0xa0000001000cf0d0 in notifier_call_chain (nl=3D0xe000003014bcb3f8, >val=3D13, > v=3D0xe000003007157b70) at kernel/sys.c:144 >#5 0xa0000001000cf170 in atomic_notifier_call_chain >(nh=3D0xe000003014bcb3f0, > val=3D21, v=3D0xe000003007157b70) at kernel/sys.c:229 >#6 0xa000000100048480 in ia64_init_handler (regs=3D0xe000003007157e40, > sw=3D<value optimized out>, sos=3D<value optimized out>) > at include/asm/kdebug.h:88 >#7 0xa0000001000493a0 in ia64_os_init_virtual_begin () > at include/asm/kdebug.h:88 >(gdb) > >It is the stack _after_ NMI is triggered. Is this supposed to be? >What do you see on other (ie not SN) ia64 platforms? This is standard for INIT on any IA64 box, it is not SN specific. IA64 MCA/INIT run on separate stacks and tasks. Read Documentation/ia64/mca.txt and arch/ia64/kernel/mca.c::ia64_mca_modify_original_stack - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
|