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authorMike Travis <travis@sgi.com>2011-05-25 04:13:20 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 19:39:48 +0400
commit162a7e7500f9664636e649ba59defe541b7c2c60 (patch)
treef44d4e480975d7f2c4bd4fd8625dbdb81eb04ade /init
parent95dde501907b06e7203c74f8435acfdab9eb2659 (diff)
downloadlinux-162a7e7500f9664636e649ba59defe541b7c2c60.tar.xz
printk: allocate kernel log buffer earlier
On larger systems, because of the numerous ACPI, Bootmem and EFI messages, the static log buffer overflows before the larger one specified by the log_buf_len param is allocated. Minimize the overflow by allocating the new log buffer as soon as possible. On kernels without memblock, a later call to setup_log_buf from kernel/init.c is the fallback. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix CONFIG_PRINTK=n build] Signed-off-by: Mike Travis <travis@sgi.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init')
-rw-r--r--init/main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/init/main.c b/init/main.c
index 22da33918aef..d2f1e086bf33 100644
--- a/init/main.c
+++ b/init/main.c
@@ -504,6 +504,7 @@ asmlinkage void __init start_kernel(void)
* These use large bootmem allocations and must precede
* kmem_cache_init()
*/
+ setup_log_buf(0);
pidhash_init();
vfs_caches_init_early();
sort_main_extable();