https://github.com/torvalds/linux
Revision d782f33df706f1b8a4496b41fd7d339c6e23aa59 authored by Russell King on 08 June 2006, 16:59:31 UTC, committed by Russell King on 08 June 2006, 16:59:31 UTC
While testing the genirq code on ARM, a condition was found whereby
the Neponset IRQ handler was being re-entered, causing the system
to deadlock.

Under the ARM IRQ code, this would not have been a visible problem
because the "simple" IRQ handling had no re-entrancy protection.

Resolve this by acknowledging the parent interrupt after we mask it
when we are going to handle one of our "special" level-based sources
(from ethernet or USAR chip.)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
1 parent 1def630
History
Tip revision: d782f33df706f1b8a4496b41fd7d339c6e23aa59 authored by Russell King on 08 June 2006, 16:59:31 UTC
[ARM] Fix Neponset IRQ handling
Tip revision: d782f33
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