en:users:drivers:iwlwifi:debugging
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en:users:drivers:iwlwifi:debugging [2020/09/18 07:39] Johannes Berg [How to report?] |
en:users:drivers:iwlwifi:debugging [2021/01/21 07:32] Golan Ben Ami [Firmware Debugging] |
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| Getting data from the firmware can often provide a lot of information, especially when the traffic is being stalled, latency is high, queues are stuck etc.. Here is how to do so. This is working starting kernel 3.19. | Getting data from the firmware can often provide a lot of information, especially when the traffic is being stalled, latency is high, queues are stuck etc.. Here is how to do so. This is working starting kernel 3.19. | ||
| - | First you'll need to allow DEV_COREDUMP by setting CONFIG_ALLOW_DEV_COREDUMP to Y. | + | First you need to add the debug configuration. Open the debug file: |
| + | <code> /lib/firmware/iwl-dbg-cfg.ini </code> | ||
| + | And add this text: | ||
| + | <code> | ||
| + | [IWL DEBUG CONFIG DATA] | ||
| + | FW_DBG_PRESET=1 | ||
| + | </code> | ||
| + | |||
| + | Then, you'll need to allow DEV_COREDUMP by setting CONFIG_ALLOW_DEV_COREDUMP to Y. | ||
| Then, you'll need to create a core dump. This can be done by: | Then, you'll need to create a core dump. This can be done by: | ||
en/users/drivers/iwlwifi/debugging.txt · Last modified: 2022/05/30 08:07 by Johannes Berg
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