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Commit 79b9ce31 authored by Marcelo Tosatti's avatar Marcelo Tosatti Committed by Linus Torvalds
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[PATCH] print order information when OOM killing 



Dump the current allocation order when OOM killing.

Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent cb2c0233

drivers/char/sysrq.c

+1 −1
Original line number Diff line number Diff line
@@ -228,7 +228,7 @@ static struct sysrq_key_op sysrq_term_op = { 


static void moom_callback(void *ignored)

{

	out_of_memory(GFP_KERNEL);

	out_of_memory(GFP_KERNEL, 0);

}



static DECLARE_WORK(moom_work, moom_callback, NULL);

include/linux/swap.h

+1 −1
Original line number Diff line number Diff line
@@ -148,7 +148,7 @@ struct swap_list_t { 
#define vm_swap_full() (nr_swap_pages*2 < total_swap_pages)



/* linux/mm/oom_kill.c */

extern void out_of_memory(unsigned int __nocast gfp_mask);

extern void out_of_memory(unsigned int __nocast gfp_mask, int order);



/* linux/mm/memory.c */

extern void swapin_readahead(swp_entry_t, unsigned long, struct vm_area_struct *);

mm/oom_kill.c

+2 −2
Original line number Diff line number Diff line
@@ -253,12 +253,12 @@ static struct mm_struct *oom_kill_process(struct task_struct *p) 
 * OR try to be smart about which process to kill. Note that we

 * don't have to be perfect here, we just have to be good.

 */

void out_of_memory(unsigned int __nocast gfp_mask)

void out_of_memory(unsigned int __nocast gfp_mask, int order)

{

	struct mm_struct *mm = NULL;

	task_t * p;



	printk("oom-killer: gfp_mask=0x%x\n", gfp_mask);

	printk("oom-killer: gfp_mask=0x%x, order=%d\n", gfp_mask, order);

	/* print memory stats */

	show_mem();

mm/page_alloc.c

+1 −1
Original line number Diff line number Diff line
@@ -936,7 +936,7 @@ __alloc_pages(unsigned int __nocast gfp_mask, unsigned int order, 
				goto got_pg;

		}



		out_of_memory(gfp_mask);

		out_of_memory(gfp_mask, order);

		goto restart;

	}