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| author | Thomas Gleixner <[email protected]> | 2015-07-16 12:10:17 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2015-07-17 09:29:34 +0000 |
| commit | 75a06189fc508a2acf470b0b12710362ffb2c4b1 (patch) | |
| tree | af68b2120f3cba499cf8d26b6cd76cdbb1d302f2 /net/switchdev/switchdev.c | |
| parent | genirq: Revert sparse irq locking around __cpu_up() and move it to x86 for now (diff) | |
| download | kernel-75a06189fc508a2acf470b0b12710362ffb2c4b1.tar.gz kernel-75a06189fc508a2acf470b0b12710362ffb2c4b1.zip | |
genirq: Prevent resend to interrupts marked IRQ_NESTED_THREAD
The resend mechanism happily calls the interrupt handler of interrupts
which are marked IRQ_NESTED_THREAD from softirq context. This can
result in crashes because the interrupt handler is not the proper way
to invoke the device handlers. They must be invoked via
handle_nested_irq.
Prevent the resend even if the interrupt has no valid parent irq
set. Its better to have a lost interrupt than a crashing machine.
Reported-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions