linux

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History

Anton Ivanov d5e3f5cbe5 um: Prevent IRQ handler reentrancy

The existing IRQ handler design in UML does not prevent reentrancy

This is mitigated by fd-enable/fd-disable semantics for the IO
portion of the UML subsystem. The timer, however, can and is
re-entered resulting in very deep stack usage and occasional
stack exhaustion.

This patch prevents this by checking if there is a timer
interrupt in-flight before processing any pending timer interrupts.

Signed-off-by: Anton Ivanov <aivanov@brocade.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

2016-01-10 21:49:47 +01:00

configs

arch/um: make it work with defconfig and x86_64

2013-11-17 11:31:48 +01:00

drivers

um: fix returns without va_end

2015-12-08 22:26:00 +01:00

include

um: Switch clocksource to hrtimers

2015-11-06 22:54:49 +01:00

kernel

um: Fix get_signal() usage