----- Original Message ----- > > > strings ./vmlinux | grep "Linux version" > Linux version 3.0.15+ (oza@lc-blr-291) (gcc version 4.4.3 (GCC) ) #4 PREEMPT Mon Aug 13 12:02:58 IST 2012 > > cat /proc/version > Linux version 3.0.15+ (oza@lc-blr-291) (gcc version 4.4.3 (GCC) ) #4 PREEMPT Mon Aug 13 12:02:58 IST 2012 Looks OK -- so you'll have to debug verify_namelist(). It does a popen("/usr/bin/strings ./vmlinux") and searches for the linux_banner string here: while (fgets(buffer, BUFSIZE-1, pipe)) { if (!strstr(buffer, "Linux version 2.") && !strstr(buffer, "Linux version 3.")) continue; and when it finds it, it picks out the gcc version number. I don't know why it's not working in your case. Also, since your vmlinux file is identical to /proc/version, why are you using a System.map argument again? > > crash> ptype struct kmem_cache > type = struct kmem_cache { > struct array_cache *array[1]; > unsigned int batchcount; > unsigned int limit; > unsigned int shared; > unsigned int buffer_size; > u32 reciprocal_buffer_size; > unsigned int flags; > unsigned int num; > unsigned int gfporder; > gfp_t gfpflags; > size_t colour; > unsigned int colour_off; > struct kmem_cache *slabp_cache; > unsigned int slab_size; > unsigned int dflags; > void (*ctor)(void *); > const char *name; > struct list_head next; > struct kmem_list3 *nodelists[1]; > } OK, in this case you'll have to debug get_array_length(), and figure out why it's not finding the lookfor2 string -- which should be set to "*array[" -- in the ptype command output. Again, I don't know why it's not finding it. Dave -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility