But this really will be interesting. It seems to be fine at 8GB of ram, not just at 4GB. I'm not getting any dma issues or dropped packets so far. But booting with 12GB will cause problems.


On 4/2/2013 7:28 PM, Adrian Chadd wrote:
Nono, they're free. There's no active pages after an unload. Thus, they're fine.

Ok, so now I need to go and audit things in more depth.

Thanks!



Adrian

On 2 April 2013 17:24, Joshua Isom <jri...@gmail.com> wrote:
hw.busdma.total_bpages: 8250
hw.busdma.zone0.total_bpages: 8250
hw.busdma.zone0.free_bpages: 8250
hw.busdma.zone0.reserved_bpages: 0
hw.busdma.zone0.active_bpages: 0
hw.busdma.zone0.total_bounced: 3836
hw.busdma.zone0.total_deferred: 0
hw.busdma.zone0.lowaddr: 0xffffffff
hw.busdma.zone0.alignment: 4096

They'd not freed.


On 4/2/2013 5:33 PM, Adrian Chadd wrote:

Ok, can you:

* bring the interface down cleanly (ifconfig wlan0 down);
* unload the ath driver (kldunload if_ath and kldunload if_ath_pci)
* sysctl hw.busdma, and just add it to the list here?

I'd like to make sure that it's freeing all the bounce buffer pages.

Thanks,


adrian



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