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[SPARC64]: Wrap SMP IPIs with irq_enter()/irq_exit().
authorDavid S. Miller <davem@davemloft.net>
Fri, 25 Apr 2008 10:11:37 +0000 (03:11 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 25 Apr 2008 10:11:37 +0000 (03:11 -0700)
commit2664ef44cf5053d2b7dff01cecac70bc601a5f68
treec2f5d5533647885f3580c565870d2959dbb204d2tree | snapshot
parent020cfb05f2c594c778537159bd45ea5efb0c5e0dcommit | diff
[SPARC64]: Wrap SMP IPIs with irq_enter()/irq_exit().

Otherwise all sorts of bad things can happen, including
spurious softlockup reports.

Other platforms have this same bug, in one form or
another, just don't see the issue because they
don't sleep as long as sparc64 can in NOHZ.

Thanks to some brilliant debugging by Peter Zijlstra.

Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc64/kernel/smp.c diff | blob | history
John Crispins staging tree