Re: [Crash-utility] problem with crash on upstream kernel cores

On Fri, Feb 23, 2007 at 04:19:37PM -0500, Dave Anderson wrote: > Josef Whiter wrote: > > > On Fri, Feb 23, 2007 at 04:00:09PM -0500, Dave Anderson wrote: > > > if you do this with your kernel: > > > > > > # gdb vmlinux > > > ... > > > (gdb) ptype struct zone > > > > > > What do you see? > > > > > > > (gdb) ptype struct zone > > type = struct zone { > > long unsigned int pages_min; > > long unsigned int pages_low; > > long unsigned int pages_high; > > long unsigned int lowmem_reserve[3]; > > struct per_cpu_pageset pageset[32]; > > spinlock_t lock; > > struct free_area free_area[11]; > > struct zone_padding _pad1_; > > spinlock_t lru_lock; > > struct list_head active_list; > > struct list_head inactive_list; > > long unsigned int nr_scan_active; > > long unsigned int nr_scan_inactive; > > long unsigned int pages_scanned; > > int all_unreclaimable; > > atomic_t reclaim_in_progress; > > atomic_long_t vm_stat[14]; > > int prev_priority; > > struct zone_padding _pad2_; > > wait_queue_head_t *wait_table; > > long unsigned int wait_table_hash_nr_entries; > > long unsigned int wait_table_bits; > > struct pglist_data *zone_pgdat; > > long unsigned int zone_start_pfn; > > long unsigned int spanned_pages; > > long unsigned int present_pages; > > const char *name; > > } > > > > It looks like free_pages has been removed altogether. > > That appears to be a very recent change -- 2.6.20.1 still has it: > > struct zone { > /* Fields commonly accessed by the page allocator */ > unsigned long free_pages; > unsigned long pages_min, pages_low, pages_high; > ... > > What version are you using? Are you running 2.6.21-rc1? > No, I pulled linus's git tree down maybe a week ago, so its close to -rc1. Josef