Yinghai Lu wrote:
Correct, but the overall point was that MSI-X conceptually conflicts
with the existing "lockless" disable_irq() schedule, which was written
when there was a one-one relationship between irq, PCI device, and work
to be done.
at this point, nic in mcp55 is using msi or INTx.
Correct.
For msi-x, the driver does three disable_irq() calls to the correct
vectors. ugly, but nevertheless correct.
The bug only affected msi: The driver did disable_irq(<old INTx irq
num>) instead of disable_irq(<new msi-x irq num>).
The patch that I've attached to the bugzilla report 9047 seems to fix
the crash, thus I would propose to apply it to 2.6.23 and 2.6.24. I'll
send a seperate mail.
All other problem [reduce code duplication, less ugly locking, ...]
should be fixed with independant patches.
--
Manfred
YH
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