PCIe driver causes kernel reset

_Ralph_

If I boot up with my PCIe card installed in the EVM for the DM8168, load my kernel module for the card then physically pull out the card, the system resets.

I know that the system does not support hot plug but it's a bit extreme in my opinion for the entire system is reset if the PCIe card is pulled out. Could this be fixed by TI? I have trouble believing that my kernel module is causing the reset given that it uses the PCIe framework provided by TI's driver!

Thanks,
Ralph

over 14 years ago

0 Sandeep R over 14 years ago

TI__Prodigy 550 points

Ralph,

Using which PCIe card are you observing this behavior? When you say the system resets, does the kernel crash & re-boot?

0 _Ralph_ over 14 years ago in reply to Sandeep R

Guru 10685 points

Hi, I'm using an Altera FPGA development board.

In fact, I don't even have to load my kernel module for the system to reset. I just unplug and plug back in the board a few times and the DM8168 resets. There is no kernel crash, it just resets.

Ralph

0 _Ralph_ over 13 years ago in reply to _Ralph_

Guru 10685 points

Anyone?

There is also the issue that the TI driver doesn't report the removal of the card in a nice way. I know hotplug is not supported but it would be nice to at least have a mechanism to know when the card was removed.

Ralph

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PCIe driver causes kernel reset