init: make initrd/initramfs decompression failure a KERN_EMERG event
Impact: More consistent behaviour, avoid policy in the kernel
Upgrade/downgrade initrd/initramfs decompression failure from
inconsistently a panic or a KERN_ALERT message to a KERN_EMERG event.
It is, however, possible do design a system which can recover from
this (using the kernel builtin code and/or the internal initramfs),
which means this is policy, not a technical necessity.
A good way to handle this would be to have a panic-level=X option, to
force a panic on a printk above a certain level. That is a separate
patch, however.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index 91d0cfc..027a402 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -83,7 +83,8 @@
printk(KERN_NOTICE "RAMDISK: %s image found at block %d\n",
compress_name, start_block);
if (!*decompressor)
- printk(KERN_CRIT "RAMDISK: %s decompressor not configured!\n",
+ printk(KERN_EMERG
+ "RAMDISK: %s decompressor not configured!\n",
compress_name);
nblocks = 0;
goto done;