en:users:drivers:iwlwifi:debugging
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en:users:drivers:iwlwifi:debugging [2019/02/06 13:13] Emmanuel Grumbach |
en:users:drivers:iwlwifi:debugging [2020/09/18 07:39] Johannes Berg [How to report?] |
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| ===== How to report? ===== | ===== How to report? ===== | ||
| - | Issues can be filed in [[http://bugzilla.kernel.org|kernel's bugzilla]]. Make sure to add [[mailto:linuxwifi@intel.com|linuxwifi@intel.com]] to the bug. | + | Issues can be filed in [[http://bugzilla.kernel.org|kernel's bugzilla]]. |
| + | |||
| + | Make sure to set | ||
| + | |||
| + | * Product: Drivers | ||
| + | * Component: network-wireless-intel | ||
| Always attach the kernel log to your reports: | Always attach the kernel log to your reports: | ||
| <code>dmesg > dmesg.log</code> and attach dmesg.log to the bug. | <code>dmesg > dmesg.log</code> and attach dmesg.log to the bug. | ||
| Line 25: | Line 31: | ||
| ==== Prints ==== | ==== Prints ==== | ||
| - | The simplest way to provide minimal output is to dump your kernel log: dmesg. Sometimes we will ask for logs from the supplicant too - they typically land in syslog. iwlwifi can print more data to the kernel log if asked to: this is controlled by the debug module parameter. This is a [[https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/net/wireless/intel/iwlwifi/iwl-debug.h#n143|bitmap]]. To see more debug prints, [[https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/net/wireless/intel/iwlwifi/Kconfig#n105|CONFIG_IWLWIFI_DEBUG]] must be enabled. | + | The simplest way to provide minimal output is to dump your kernel log: dmesg. Sometimes we will ask for logs from the supplicant too - they typically land in syslog. iwlwifi can print more data to the kernel log if asked to: this is controlled by the debug module parameter. This is a [[https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/net/wireless/intel/iwlwifi/iwl-debug.h#n129|bitmap]]. To see more debug prints, [[https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/net/wireless/intel/iwlwifi/Kconfig#n105|CONFIG_IWLWIFI_DEBUG]] must be enabled. |
| Please don't add debug level unless instructed to do so. Adding more prints typically adds useless information. | Please don't add debug level unless instructed to do so. Adding more prints typically adds useless information. | ||
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| In case of a firmware crash or queues being stuck, a dump will be automatically created. If you have the udev rule in place, you'll see the dump on your file system. No customization needed in that case, the dump from a regular firmware will already include valuable data, but we usually need more information than the data provided by a release version of the firmware. When you report a bug, please use a debug firmware | In case of a firmware crash or queues being stuck, a dump will be automatically created. If you have the udev rule in place, you'll see the dump on your file system. No customization needed in that case, the dump from a regular firmware will already include valuable data, but we usually need more information than the data provided by a release version of the firmware. When you report a bug, please use a debug firmware | ||
| - | from the list below which will allow the dump to include more data at the cost of extra PCI transactions: | + | from the list below. This will allow to include more data in the dump at the cost of extra PCI transactions: |
| {{en:users:drivers:iwlwifi:iwlwifi-3160-17.ucode.gz|debug firmware version for 3160}} | {{en:users:drivers:iwlwifi:iwlwifi-3160-17.ucode.gz|debug firmware version for 3160}} | ||
en/users/drivers/iwlwifi/debugging.txt · Last modified: 2022/05/30 08:07 by Johannes Berg
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