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(parent: 8d783b3) | patch
[PATCH] CPU hotplug printk fix
authorShaohua Li <shaohua.li@intel.com>
Sat, 25 Jun 2005 21:55:15 +0000 (14:55 -0700)
committerLinus Torvalds <torvalds@ppc970.osdl.org>
Sat, 25 Jun 2005 23:24:34 +0000 (16:24 -0700)
commitac25575203c11145066ea5cb583354cb5f0a8ade
treef5bb286385e7a9aa0264b5186c165bac3606d327tree | snapshot (tar.gz zip)
parent8d783b3e02002bce8cf9d4e4a82922ee7e59b1e5commit | diff
[PATCH] CPU hotplug printk fix

In the cpu hotplug case, per-cpu data possibly isn't initialized even the
system state is 'running'.  As the comments say in the original code, some
console drivers assume per-cpu resources have been allocated.  radeon fb is
one such driver, which uses kmalloc.  After a CPU is down, the per-cpu data
of slab is freed, so the system crashed when printing some info.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
kernel/printk.c diff | blob | blame | history