commit 8f9de51a4a98ba32f839903b7d009788bc2c295d
author Kirill Korotaev <dev@openvz.org> Fri Jun 23 02:03:50 2006 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> Fri Jun 23 07:42:52 2006 -0700
tree 65cde3cd75bfc1df172f53ca956cba4fa4954a4e
parent d501e62bc7796e90b0312648e23ac39490dfbf87

[PATCH] printk() should not be called under zone->lock

This patch fixes printk() under zone->lock in show_free_areas().  It can be
unsafe to call printk() under this lock, since caller can try to
allocate/free some memory and selfdeadlock on this lock.  I found
allocations/freeing mem both in netconsole and serial console.

This issue was faced in reallity when meminfo was periodically printed for
debug purposes and netconsole was used.

Signed-off-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>