On 5/19/2022 8:14 AM, duoming@xxxxxxxxxx wrote:
Hello, On Thu, 19 May 2022 17:58:47 +0300 Kalle Valo wrote:There are sleep in atomic context bugs when uploading device dump data on usb interface. The root cause is that the operations that may sleep are called in fw_dump_timer_fn which is a timer handler. The call tree shows the execution paths that could lead to bugs: (Interrupt context) fw_dump_timer_fn mwifiex_upload_device_dump dev_coredumpv(..., GFP_KERNEL)
just looking at this description, why isn't the simple fix just to change this call to use GFP_ATOMIC?
