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| author | Ivan Kokshaysky <ink@jurassic.park.msu.ru> | 2006-03-09 17:33:37 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-09 19:47:37 -0800 |
| commit | eff2c2f6f569267aa52e2431844cec30637d7ade (patch) | |
| tree | 9548511bccd76c8af891a490e314c986072f3997 /arch/alpha/kernel/irq.c | |
| parent | 10ad1b7363090c0eec2b4054a5a3b82d2cc09ee5 (diff) | |
| download | linux-eff2c2f6f569267aa52e2431844cec30637d7ade.tar.gz linux-eff2c2f6f569267aa52e2431844cec30637d7ade.tar.bz2 linux-eff2c2f6f569267aa52e2431844cec30637d7ade.zip | |
[PATCH] alpha: fix IRQ handling lockup
Fix a lockup which was introduced during the conversion to the generic IRQ
framework.
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/alpha/kernel/irq.c')
| -rw-r--r-- | arch/alpha/kernel/irq.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c index 9006063e7369..da677f829f76 100644 --- a/arch/alpha/kernel/irq.c +++ b/arch/alpha/kernel/irq.c @@ -151,8 +151,13 @@ handle_irq(int irq, struct pt_regs * regs) } irq_enter(); + /* + * __do_IRQ() must be called with IPL_MAX. Note that we do not + * explicitly enable interrupts afterwards - some MILO PALcode + * (namely LX164 one) seems to have severe problems with RTI + * at IPL 0. + */ local_irq_disable(); __do_IRQ(irq, regs); - local_irq_enable(); irq_exit(); } |