Messages in this thread |  | | | Subject | Re: Looking for a way to trigger error on network adapter | | Date | Wed, 21 Feb 2001 13:55:13 +0000 (GMT) | | From | Alan Cox <> |
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> I want to see how my code bahaves during rare (?) events: an overflow of > the RX fifo (256 bytes) and a TX underrun. It's my understanding that if the > adapter pains at DMAing, those errors should be triggered. > Could I/O at a inocuous location (a well-choosen PCI register ?) be enough > for that ?
Install XFree86 4.0 on a matrox card. Enable pci retries in the config. Wave large windows around while running a heavy graphical app.
Thats certainly enough to make several sound cards barf and sulk. The matrox has a bencmarketing feature where they lock the pci bus to get better winbench type numbers. They arent the only people who do it and thankfully you can turn it off, but for this specific case its rather useful 8)
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