Am 08.08.2018 um 18:56 schrieb Arthur Watt:
Good afternoon.We have been testing 3 x ath10k devices on a 4.14 based Linux kernel with a Cavium processor. Up to this point we have been seeing some unexplained crashes from the ath10k devices (firmware crashes due to corrupt HTC messages is the most common). We have tried various module and firmware versions (including wireless-latest) and all seem to show the same errors. Is it possible that there is an inherent memory corrupt problem with the ath10k driver/firmware, since other list members don't seem to be shouting about this we started investigating the kernel configuration and not the driver/firmware? This morning I made a kernel parameter change coherent_pool=256M Since making this change the number of faults seem to have reduced. Does anyone know if there are any Linux kernel configuration parameters needed in order for multiple ath10k devices to behave reliably. In particular do I need a coherent_pool configured and what page size is the optimum for ath10k operation? Our ath10k devices are QCA9984 and QCA988X.
i only can say that i run multiple QCA988X cards on X64 and on ARM cortex A9 devices and i also run dual QCA9984 configurations on IPQ8064 arm cpus with no issues.
would be good to see some errorlogs. it can be related to some dma memory address/space problems which are cpu specific
Sebastian
Thank you Arthur _______________________________________________ ath10k mailing list [email protected] http://lists.infradead.org/mailman/listinfo/ath10k
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